U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject Florida Remove constraint Subject: Florida Subject anthropogenic activities Remove constraint Subject: anthropogenic activities
Start Over

Search

142  Search Results

« Previous | 1 - 50 of 142 |
Number of results to display per page

Search Results

1. A 2,500-year record of environmental change in Highlands Hammock State Park (Central Florida, U.S.A.) inferred from siliceous microfossils

Author:
Christof Pearce; Holger Cremer; Emmy Lammertsma; Friederike Wagner-Cremer
Source:
Journal of paleolimnology 2013 v.49 no.1 pp. 31-43
ISSN:
0921-2728
Subject:
Eunotia; anthropogenic activities; climate change; epiphytes; forests; hydrology; microfossils; peat; sediments; Florida
Abstract:
... Analysis of siliceous microfossils of a 79 cm long peat sediment core from Highlands Hammock State Park, Florida, revealed distinct changes in the local hydrology during the past 2,500 years. The coring site is a seasonally inundated forest where water availability is directly influenced by precipitation. Diatoms, chrysophyte statospores, sponge remains and phytoliths were counted in 25 samples th ...
DOI:
10.1007/s10933-011-9557-2

2. A 3,000‐year lag between the geological and ecological shutdown of Florida's coral reefs

Author:
Lauren T. Toth; Ilsa B. Kuffner; Anastasios Stathakopoulos; Eugene A. Shinn
Source:
Global change biology 2018 v.24 no.11 pp. 5471-5483
ISSN:
1354-1013
Subject:
anthropogenic activities; climate; coral reefs; corals; ecosystems; global cooling; sea level; temporal variation; Florida
Abstract:
... The global‐scale degradation of coral reefs has reached a critical threshold wherein further declines threaten both ecological functionality and the persistence of reef structure. Geological records can provide valuable insights into the long‐term controls on reef development that may be key to solving the modern coral‐reef crisis. Our analyses of new and existing coral‐reef cores from throughout ...
DOI:
10.1111/gcb.14389

3. A 4700-Year History of Cyanobacteria Toxin Production in a Shallow Subtropical Lake

Author:
M. N. Waters
Source:
Ecosystems 2016 v.19 no.3 pp. 426-436
ISSN:
1432-9840
Subject:
Cyanobacteria; adverse effects; anthropogenic activities; aquatic ecosystems; cylindrospermopsin; human health; lakes; monitoring; secondary metabolites; sediments; surface water; watersheds; Florida
Abstract:
... Cyanobacterial toxins or cyanotoxins are secondary metabolites produced by cyanobacteria and are found in water bodies around the world causing negative effects on aquatic ecosystems and human health. There are numerous environmental and biological triggers for toxin production, and the ecological role of most toxins is still being determined. Whereas cyanobacterial toxin occurrence appears to be ...
DOI:
10.1007/s10021-015-9943-0

4. Accounting for Wetland Loss: Wetland Mitigation Trends in Northeast Florida 2006–2013

Author:
Nisse Goldberg; Kelly Chinners Reiss
Source:
Wetlands 2016 v.36 no.2 pp. 373-384
ISSN:
0277-5212
Subject:
anthropogenic activities; case studies; ecosystem services; issues and policy; land use; landscapes; lowland forests; urban development; watersheds; wetlands; Florida
Abstract:
... The realization of wetland ‘no net loss’ policy under Section 404 of the Clean Water Act remains uncertain, as mitigation practices force a trade-off in on-site mitigation with loss of biological integrity and off-site mitigation with a redistribution of ecosystem services. Wetlands cover 25 % of the Lower St. Johns River Basin (LSJRB), northeastern Florida, a region impacted by urban development. ...
DOI:
10.1007/s13157-016-0749-4

5. After the nursery: Regional and broad‐scale movements of sharks tagged in the Caribbean

Author:
Bryan Legare; Bryan DeAngelis; Gregory Skomal
Source:
Marine ecology 2020 v.41 no.5 pp. e12608
ISSN:
0173-9565
Subject:
Carcharhinus limbatus; acoustics; anthropogenic activities; coasts; juveniles; lemons; marine science; migratory species; young of the year; Caribbean; Florida
Abstract:
... Broad‐scale movements (10s–100s km) of highly migratory species, such as sharks, present unique management challenges as fish migrate across international boundaries, thereby exposing them to different levels of anthropogenic pressure. Lemon sharks and blacktip sharks are well‐studied throughout their range in the western North Atlantic, but broad‐scale movements in the Caribbean region are largel ...
DOI:
10.1111/maec.12608

6. Ambient Aerosol and its Carbon Content in Gainesville, a Mid-Scale City in Florida

Author:
Chuaybamroong, Paradee; Cayse, Kimberleigh; Wu, Chang-Yu; Lundgren, Dale A.
Source:
Environmental monitoring and assessment 2007 v.128 no.1-3 pp. 421-430
ISSN:
0167-6369
Subject:
aerosols; anthropogenic activities; carbon; cities; emissions; particle size; rural areas; summer; urban areas; wind; winter; Florida
Abstract:
... Ambient aerosols were collected during 2000-2001 in Gainesville, Florida, using a micro-orifice uniform deposit impactor (MOUDI) to study mass size distribution and carbon composition. A bimodal mass distribution was found in every sample with major peaks for aerosols ranging from 0.32 to 0.56 μm, and 3.2 to 5.6 μm in diameter. The two distributions represent the fine mode (<2.5 μm) and the coarse ...
DOI:
10.1007/s10661-006-9336-0

7. Analysis of the Nearshore Fish Community in a Northeast Florida Estuary

Author:
McGinley Ed; O'Connor Austin; Vazquez Esme; Veenstra Jessica
Source:
Southeastern naturalist 2016 v.15 no.4 pp. 613-630
ISSN:
1528-7092
Subject:
Fundulus; Leiostomus xanthurus; Menidia; Spartina alterniflora; anthropogenic activities; breeding; carbon; climate change; correlation; crabs; ecosystems; estuaries; fish; fish communities; habitats; juveniles; marshes; salinity; species diversity; spring; summer; surveys; temperature; trophic relationships; vegetation; Florida
Abstract:
... The Guana Tolomato Matanzas National Estuarine Research Reserve (GTMNERR), located in Northeast Florida, serves as an ideal estuarine habitat for many economically and ecologically important species of fish and crabs. As climate change affects Florida ecosystems, the replacement of Spartina alterniflora (Smooth Cordgrass) marshes by northward-moving mangroves is possible. A change in the dominant ...
DOI:
10.1656/058.015.0405

8. Are roads and traffic sources of physiological stress for the Florida scrub-jay?

Author:
Gina M. Morgan; Travis E. Wilcoxen; Michelle A. Rensel; Stephan J. Schoech
Source:
Wildlife research 2012 v.39 no.4 pp. 301-310
ISSN:
1035-3712
Subject:
adults; anthropogenic activities; body condition; corticosterone; endangered species; fire break; habitats; humans; males; pastures; plowing; roads; sand; shrublands; traffic; Florida
Abstract:
... Context Anthropogenic disturbances induce physiological and behavioural responses in numerous species. The negative effects of human disturbance are of special concern to threatened and endangered species. Aims The present study aims to compare physiological stress measures and reproductive success of Florida scrub-jays (Aphelocoma coerulescens) living near roads with jays that live away from road ...
DOI:
10.1071/WR11029

9. Arsenic Distribution in Florida Urban Soils

Author:
T. Chirenje; L. Q. Ma; M. Szulczewski; R. Littell; K. M. Portier; E. Zillioux
Source:
Journal of environmental quality 2003 v.32 no.1 pp. 109-119
ISSN:
1537-2537
Subject:
United States Environmental Protection Agency; anthropogenic activities; arsenic; atomic absorption spectrometry; carcinogens; cities; land use; public lands; remediation; soil sampling; urban soils; Florida
Abstract:
... Arsenic contamination is of concern due to its effect as a carcinogen. Understanding the distribution of arsenic in urban soils is important for establishing baseline concentrations from which anthropogenic effects can be measured. The soil cleanup target level (SCTL) for arsenic in Florida (0.8 and 3.7 mg kg⁻¹ in residential and commercial areas, respectively) is lower than in most states and is ...
DOI:
10.2134/jeq2003.1090

10. Assessing benthic health in stressed subtropical estuaries, eastern Florida, USA using AMBI and M-AMBI

Author:
A. Borja; B.G. Tunberg
Source:
Ecological indicators 2011 v.11 no.2 pp. 295-303
ISSN:
1470-160X
Subject:
anthropogenic activities; benthic organisms; dry season; estuaries; freshwater; macroinvertebrates; rivers; seasonal variation; subtropics; summer; water pollution; wet season; winter; Florida
Abstract:
... The Indian River Lagoon (IRL) and the St. Lucie Estuary (SLE), both located in Florida, USA, are affected by a variety of anthropogenic pressures. Benthic macroinvertebrates have been monitored quarterly since February 2005, at 15 stations, in order to assess benthic health. Since the SLE and IRL are situated in a subtropical area, it is affected by two major climatic seasons, dry (winter) and wet ...
DOI:
10.1016/j.ecolind.2010.05.007

11. Assessing boat damage to seagrass bed habitat in a Florida park from a bioeconomics perspective

Author:
Engeman, R.M.; Duquesnel, J.A.; Cowan, E.M.; Smith, H.T.; Shwiff, S.A.; Karlin, M.
Source:
Journal of coastal research 2008 v.24 no.2 pp. 527-532
ISSN:
1551-5036
Subject:
habitat destruction; estimation; bioeconomic models; contingent valuation; habitat conservation; cost benefit analysis; anthropogenic activities; ecological restoration; aquatic habitat; boats; aquatic plants; Florida
Abstract:
... Seagrass bed habitat is an important biotic community in decline worldwide. Boat damage has long been recognized for its negative impacts on shallow-water seagrass beds, with those along the Florida coast particularly vulnerable in the face of a large human population possessing a large number of boats. Boat scars to seagrass beds recover slowly, resulting in new damage that often outpaces recover ...
Handle:
10113/15645
DOI:
10.2112/06-0703.1

12. Assessing selected natural and anthropogenic impacts on freshwater lens morphology on small barrier Islands: Dog Island and St. George Island, Florida, USA

Author:
James C. Schneider; Sarah E. Kruse
Source:
Hydrogeology journal 2006 v.14 no.1-2 pp. 131-145
ISSN:
1431-2174
Subject:
anthropogenic activities; coasts; groundwater flow; human development; hydrogeology; islands; models; water supply; Florida
Abstract:
... The freshwater lens morphologies of the barrier islands Dog Island and St. George Island on the panhandle coast of Florida (FL), USA, are controlled to varying degrees by both natural and anthropogenic factors. Variable-density groundwater flow models confirm that spatial variability of recharge values can account for the observed lens asymmetry on these islands. The depth to the base of the lens ...
DOI:
10.1007/s10040-005-0442-9

13. Associations Among Ground-Surface Spiders (Araneae) and Other Arthropods in Mesic Flatwoods

Author:
Jennings David E.; Edwards G. B.; Rohr Jason R.
Source:
Florida entomologist 2012 v.95 no.2 pp. 290-296
ISSN:
0015-4040
Subject:
Araneae; Collembola; Formicidae; anthropogenic activities; arthropods; community structure; environmental factors; fauna; habitats; indicator species; pitfall traps; species diversity; surveys; Florida
Abstract:
... Mesic flatwoods in Florida are increasingly threatened by anthropogenic activities, and although they are known to be important for many species of macrofauna, little is known of the arthropod assemblages that inhabit them. As arthropods can be utilized as indicator taxa, we characterized the assemblages of ground-surface spiders (Araneae) and other arthropods at 2 mesic flatwood sites in Hillsbor ...
DOI:
10.1653/024.095.0208

14. Atmospheric mercury and fine particulate matter in coastal New England: Implications for mercury and trace element sources in the northeastern United States

Author:
Allan Kolker; Mark A. Engle; Bernhard Peucker-Ehrenbrink; Nicholas J. Geboy; David P. Krabbenhoft; Michael H. Bothner; Michael T. Tate
Source:
Atmospheric environment 2013 v.79 pp. 760-768
ISSN:
1352-2310
Subject:
airshed; anthropogenic activities; antimony; arsenic; atmospheric chemistry; barium; bismuth; cadmium; calcium; cerium; cesium; coal; coasts; cobalt; combustion; copper; gallium; iron; lanthanum; latitude; lead; magnesium; marine environment; mercury; ozone; particulates; rubidium; scandium; sodium; strontium; sulfur dioxide; summer; thorium; titanium; uranium; vanadium; yttrium; zinc; Bermuda; Canada; Florida; Massachusetts; New England region
Abstract:
... Intensive sampling of ambient atmospheric fine particulate matter was conducted at Woods Hole, Massachusetts over a four-month period from 3 April to 29 July, 2008, in conjunction with year-long deployment of the USGS Mobile Mercury Lab. Results were obtained for trace elements in fine particulate matter concurrently with determination of ambient atmospheric mercury speciation and concentrations o ...
DOI:
10.1016/j.atmosenv.2013.07.031

15. Biotic and abiotic determinants of intermediate-consumer trophic diversity in the Florida everglades

Author:
Sargeant, Brooke L.; Gaiser, Evelyn E.; Trexler, Joel C.
Source:
Marine & freshwater research 2010 v.61 no.1 pp. 11-22
ISSN:
1323-1650
Subject:
anthropogenic activities; biomass; carbon; community structure; crayfish; drying; ecosystems; fish; marshes; nitrogen; palatability; periphyton; population dynamics; primary productivity; stable isotopes; trophic relationships; Florida
Abstract:
... Food-web structure can shape population dynamics and ecosystem functioning and stability. We investigated the structure of a food-web fragment consisting of dominant intermediate consumers (fishes and crayfishes) in the Florida Everglades, using stable isotope analysis to quantify trophic diversity along gradients of primary production (periphyton), disturbance (marsh drying) and intermediate-cons ...
DOI:
10.1071/MF08322

16. Blood mineral concentrations in manatees (trichechus manatus latirostris and trichechus manatus manatus)

Author:
Siegal-Willott Jessica L.; Harr Kendal E.; Hall Jeffery O.; Hayek Lee-Ann C.; Auil-Gomez Nicole; Powell James A.; Bonde Robert K.; Heard Darryl
Source:
Journal of zoo and wildlife medicine 2013 v.44 no.2 pp. 285-294
ISSN:
1042-7260
Subject:
Trichechus manatus latirostris; adults; aluminum; animals; anthropogenic activities; antimony; arsenic; barium; blood serum; boron; cadmium; calcium; cobalt; copper; diet; females; heavy metals; iron; juveniles; magnesium; males; manganese; mineral content; minerals; molybdenum; morbidity; mortality; nickel; phosphorus; sediments; silver; sodium; strontium; toxicity; vanadium; zinc; Belize; Florida
Abstract:
... Limited information is available regarding the role of minerals and heavy metals in the morbidity and mortality of manatees. Whole-blood and serum mineral concentrations were evaluated in apparently healthy, free-ranging Florida (Trichechus manatus latirostris, n = 31) and Belize (Trichechus manatus manatus, n = 14) manatees. Toxicologic statuses of the animals and of their environment had not bee ...
DOI:
10.1638/2012-0093R.1

17. Can Video Cameras Decrease Human Intrusion into a Closed Natural Area?

Author:
Elizabeth A. Forys; Paul Hindsley; Maggie P. Miller; James B. Wilson; Lorraine N. Margeson; Don W. Margeson
Source:
Natural areas journal 2020 v.40 no.3 pp. 212
ISSN:
0885-8608
Subject:
anthropogenic activities; birds; compliance; conservation areas; forage; humans; loaves; nests; people; solar radiation; Florida; France
Abstract:
... Fort De Soto Park (Pinellas County, Florida) encompasses several barrier islands and is accessible to the public by road. Over 32 ha of beach are closed to the general public to allow birds to nest, loaf, and forage without human disturbance. The objective of this study was to use video monitoring of the closed area to determine when intrusions into the protected area occurred and to see if public ...
DOI:
10.3375/043.040.0312

18. Canals as Vectors for Fish Movement: Potential Southward Range Expansion of Lepisosteus osseus L. (Longnose Gar) in South Florida

Author:
Gandy David A.; Rehage Jennifer S.; Munyon Jay W.; Gestring Kelly B.; Galvez John I.
Source:
Southeastern naturalist 2012 v.11 no.2 pp. 253-262
ISSN:
1528-7092
Subject:
Lepisosteus; anthropogenic activities; fish; habitats; lakes; landscapes; type collections; Florida
Abstract:
... Lepisosteus osseus (Longnose Gar) is a large-bodied predator, whose Florida distribution remains unclear at the southern edge of its range. We reviewed available literature and museum voucher specimens to provide a more accurate range description, and we discuss recent collections in south Florida. Longnose Gar has not been previously reported in natural habitats south of Lake Okeechobee. Instead, ...
DOI:
10.1656/058.011.0207

19. Coastal Blue Carbon Assessment of Mangroves, Salt Marshes, and Salt Barrens in Tampa Bay, Florida, USA

Author:
Kara R. Radabaugh; Ryan P. Moyer; Amanda R. Chappel; Christina E. Powell; Ioana Bociu; Barbara C. Clark; Joseph M. Smoak
Source:
Estuaries and coasts 2018 v.41 no.5 pp. 1496-1510
ISSN:
1559-2723
Subject:
peat; sandy soils; Culicidae; mangrove forests; organic carbon; mangrove soils; watersheds; carbon sinks; anthropogenic activities; phytomass; salt marshes; habitats; Florida
Abstract:
... Compared to other terrestrial environments, coastal “blue carbon” habitats such as salt marshes and mangrove forests sequester disproportionately large amounts of carbon as standing plant biomass and peat deposits. This study quantified organic carbon stocks in 16 salt marshes, salt barrens, and mangrove forests in Tampa Bay, Florida, USA. The sites included natural, restored, and created wetlands ...
DOI:
10.1007/s12237-017-0362-7

20. Comparing and refining karst disturbance index methods through application in an island karst setting

Author:
Brandon L. Porter; Leslie A. North; Jason S. Polk
Source:
Environmental management 2016 v.58 no.6 pp. 1027-1045
ISSN:
0364-152X
Subject:
anthropogenic activities; application methods; aquifers; ecosystems; karsts; refining; stakeholders; Florida; Italy; Puerto Rico
Abstract:
... The interconnected nature of surface and subsurface karst environments allows easy disturbance to their aquifers and specialized ecosystems from anthropogenic impacts. The karst disturbance index is a holistic tool used to measure disturbance to karst environments and has been applied and refined through studies in Florida and Italy, among others. Through these applications, the karst disturbance ...
DOI:
10.1007/s00267-016-0738-7

21. Comparing diversity to flower-bee interaction networks reveals unsuccessful foraging of native bees in disturbed habitats

Author:
Karlie Carman; David G. Jenkins
Source:
Biological conservation 2016 v.202 pp. 110-118
ISSN:
0006-3207
Subject:
habitat destruction; Apis mellifera; community structure; natural resources conservation; pastures; pollinators; honey bees; flowers; species diversity; anthropogenic activities; ecological traps; Angiospermae; foraging; vegetation; Florida
Abstract:
... As land is converted to agriculture (e.g., pastures), natural vegetation is repeatedly disturbed, creating various levels of habitat alteration in which flowering plants and pollinators (e.g., bees) interact. Community structure of flowering plants, bees, and flower-bee interactions may each respond to disturbance, but potentially in different ways or magnitudes. We studied flowering plants, bees, ...
DOI:
10.1016/j.biocon.2016.08.030

22. Comparing production function models for wildfire risk analysis in the wildland-urban interface

Author:
Mercer, D.E.; Prestemon, J.P.
Source:
Forest policy and economics 2005 v.7 no.5 pp. 782-795
ISSN:
1389-9341
Subject:
wildfires; risk assessment; psychosocial factors; economics; sociodemographic characteristics; wildland fire management; mathematical models; equations; anthropogenic activities; quantitative analysis; environmental factors; poverty; police; Florida

23. Comprehensive evaluation of genetic population structure for anadromous river herring with single nucleotide polymorphism data

Author:
Kerry Reid; Eric P. Palkovacs; Daniel J. Hasselman; Diana Baetscher; Jared Kibele; Ben Gahagan; Paul Bentzen; Meghan C. McBride; John Carlos Garza
Source:
Fisheries research 2018 v.206 pp. 247-258
ISSN:
0165-7836
Subject:
Alosa aestivalis; Alosa pseudoharengus; anadromous fish; anthropogenic activities; biogeography; bycatch; data collection; ecosystems; genetic distance; genetic resources; genetic variation; genotyping; herring; monitoring; planning; population structure; rivers; single nucleotide polymorphism; spawning; Atlantic Ocean; Florida
Abstract:
... Anthropogenic activities are placing increasing pressure on many species, particularly those that rely on more than one ecosystem. River herring (alewife, Alosa pseudoharengus and blueback herring, A. aestivalis collectively) are anadromous fishes that reproduce in rivers and streams of eastern North America and migrate to the western Atlantic Ocean. Here, we use data from single nucleotide polymo ...
DOI:
10.1016/j.fishres.2018.04.014

24. Contrasting river migrations of Common Snook between two Florida rivers using acoustic telemetry

Author:
R.E Boucek; A.A. Trotter; D.A. Blewett; J.L. Ritch; R. Santos; P.W. Stevens; J.A. Massie; J. Rehage
Source:
Fisheries research 2019 v.213 pp. 219-225
ISSN:
0165-7836
Subject:
Centropomus; acoustics; anthropogenic activities; ecosystems; estuaries; fish; floodplains; freshwater; life history; mortality; rivers; spawning; telemetry; Florida
Abstract:
... The widespread use of electronic tags allows us to ask new questions regarding how and why animal movements vary across ecosystems. Common Snook (Centropomus undecimalis) is a tropical estuarine sportfish that have been well studied throughout the state of Florida, including multiple acoustic telemetry studies. Here, we ask; do the spawning behaviors of Common Snook vary across two Florida coastal ...
DOI:
10.1016/j.fishres.2018.12.017

25. Correspondence of historic salinity fluctuations in Florida Bay, USA, to atmospheric variability and anthropogenic changes

Author:
Anna Wachnicka; Evelyn Gaiser; Laurel S. Collins
Source:
Journal of paleolimnology 2013 v.49 no.1 pp. 103-115
ISSN:
0921-2728
Subject:
anthropogenic activities; drainage; drought; estuaries; evaporation; freshwater; hurricanes; hydraulic structures; lakes; managers; marine ecosystems; prediction; runoff; salinity; sediments; transportation; water flow; watersheds; Florida
Abstract:
... Florida Bay is a highly dynamic estuary that exhibits wide natural fluctuations in salinity due to changes in the balance of precipitation, evaporation and freshwater runoff from the mainland. Rapid and large-scale modification of freshwater flow and construction of transportation conduits throughout the Florida Keys during the late nineteenth and twentieth centuries reshaped water circulation and ...
DOI:
10.1007/s10933-011-9534-9

26. Cyanobacterial dynamics in shallow Lake Apopka (Florida, U.S.A.) before and after the shift from a macrophyte‐dominated to a phytoplankton‐dominated state

Author:
Matthew N. Waters; Claire L. Schelske; Mark Brenner
Source:
Freshwater biology 2015 v.60 no.8 pp. 1571-1580
ISSN:
0046-5070
Subject:
anthropogenic activities; lakes; nutrients; organic matter; phosphorus; pigments; sediments; submerged aquatic plants; Florida
Abstract:
... Paleolimnological data were used to reconstruct the primary producer history of shallow, hyper‐eutrophic Lake Apopka, Florida, U.S.A. Lake Apopka changed from a macrophyte‐dominated state to a phytoplankton‐dominated state in 1947. It has remained phytoplankton‐dominated despite efforts to re‐establish clear‐water conditions and submersed aquatic plants. Photosynthetic pigments, organic matter and ...
DOI:
10.1111/fwb.12589

27. Demographic consequences of anthropogenic influences: Florida black bears in north-central Florida

Author:
Hostetler, Jeffrey A.; Walter McCown, J.; Garrison, Elina P.; Neils, Aletris M.; Barrett, Mark A.; Sunquist, Melvin E.; Simek, Stephanie L.; Oli, Madan K.
Source:
Biological conservation 2009 v.142 no.11 pp. 2456-2463
ISSN:
0006-3207
Subject:
simulation models; roads; fecundity; wildlife management; national forests; wildlife habitats; habitat fragmentation; Ursus americanus; anthropogenic activities; forest habitats; population growth; mortality; adults; Florida
Abstract:
... Anthropogenic habitat fragmentation poses a serious threat to conservation of large carnivores, due to their extensive movements and potential conflicts with humans. We studied the population ecology of Florida black bears (Ursus americanus floridanus) for 6years in two study areas in north-central Florida: Ocala National Forest (ONF), a contiguous forested habitat, and an adjacent residential com ...
DOI:
10.1016/j.biocon.2009.05.029

28. Detection of seagrass scars using sparse coding and morphological filter

Author:
E. Oguslu; Kazi Islam; Daniel Perez; V.J. Hill; W.P. Bissett; R.C. Zimmerman; J. Li
Source:
Remote sensing of environment 2018 v.213 pp. 92-103
ISSN:
0034-4257
Subject:
algorithms; anthropogenic activities; coastal water; habitat fragmentation; habitats; panchromatic imagery; principal component analysis; propellers; satellites; seagrasses; spatial data; Florida; Netherlands
Abstract:
... The proximity of seagrass meadows to centers of human activity makes them vulnerable to a variety of habitat degrading insults. Physical scarring has long been recognized as an important but difficult-to-quantify source of habitat fragmentation and seagrass loss. We present a pixel-based algorithm to detect seafloor propeller seagrass scars in shallow water that promises to automate the detection ...
DOI:
10.1016/j.rse.2018.05.009

29. Determinants of spread in an urban landscape by an introduced lizard

Author:
Jason J. Kolbe; Paul VanMiddlesworth; Andrew C. Battles; James T. Stroud; Bill Buffum; Richard T. T. Forman; Jonathan B. Losos
Source:
Landscape ecology 2016 v.31 no.8 pp. 1795-1813
ISSN:
0921-2973
Subject:
Anolis; anthropogenic activities; body temperature; canopy; forests; geographic information systems; habitat preferences; habitats; introduced species; landscapes; lizards; microclimate; parks; residential areas; surveys; trees; urban areas; urbanization; Florida
Abstract:
... CONTEXT: Urban landscapes are a mixture of built structures, human-altered vegetation, and remnant semi-natural areas. The spatial arrangement of abiotic and biotic conditions resulting from urbanization doubtless influences the establishment and spread of non-native species in a city. OBJECTIVES: We investigated the effects of habitat structure, thermal microclimates, and species coexistence on t ...
DOI:
10.1007/s10980-016-0362-1

30. Effects of surrounding land use and water depth on seagrass dynamics relative to a catastrophic algal bloom

Author:
David R. Breininger; Robert D. Breininger; Carlton R. Hall
Source:
Conservation biology 2017 v.31 no.1 pp. 67-75
ISSN:
0888-8892
Subject:
aerial photography; algal blooms; anthropogenic activities; die-off; ecosystems; environmental factors; geographic information systems; land use; rivers; seagrasses; statistical models; urban areas; watersheds; Florida
Abstract:
... Seagrasses are the foundation of many coastal ecosystems and are in global decline because of anthropogenic impacts. For the Indian River Lagoon (Florida, U.S.A.), we developed competing multistate statistical models to quantify how environmental factors (surrounding land use, water depth, and time [year]) influenced the variability of seagrass state dynamics from 2003 to 2014 while accounting for ...
DOI:
10.1111/cobi.12791

31. Enhanced Pest Ant Control With Hydrophobic Bait

Author:
R. K. Vander Meer; D. E. Milne
Source:
Journal of economic entomology 2017 v.110 no.2 pp. 567-574
ISSN:
0022-0493
Subject:
Solenopsis invicta; Wasmannia auropunctata; ant control; anthropogenic activities; control methods; dew; field experimentation; fire ants; habitat destruction; habitats; hydrophobicity; insecticides; natural enemies; population density; Alabama; Florida
Abstract:
... The red imported fire ant, Solenopsis invicta (Buren), left most of its natural enemies behind in South America when it arrived in Mobile, AL, in the 1930s and spread rapidly throughout the southeastern United States, reaching population levels up to 10 times those found in South America. The large population densities and propensity for disturbed habitats led to direct conflict with human activit ...
DOI:
10.1093/jee/tow300

32. An Ethogram Describing the Nesting Behavior of Green Sea Turtles (Chelonia mydas)

Author:
Rebekah Lindborg; Emily Neidhardt; J. Rachel Smith; Benjamin Schwartz; Vivian Hernandez; Anne Savage; Blair Witherington
Source:
Herpetologica 2019 v.75 no.2 pp. 114-122
ISSN:
1938-5099
Subject:
Chelonia mydas; anthropogenic activities; data collection; eggs; equipment; females; nesting; night vision; oviposition; sand; sea turtles; stroke; video recording; Florida
Abstract:
... Nesting in sea turtles involves a series of behavioral stages in which females ascend a coastal beach, move sand to bury and conceal eggs, and return to the sea. We created a partial ethogram of nesting stages in Green Sea Turtles (Chelonia mydas) from a central Florida Atlantic beach. We documented nesting stages through both in-person data collection and use of night-vision video-recording equip ...
DOI:
10.1655/D-18-00015

33. Evaluation of the Possible Sources and Controlling Factors of Toxic Metals/Metalloids in the Florida Everglades and Their Potential Risk of Exposure

Author:
Li Yanbin; Duan Zhiwei; Liu Guangliang; Kalla Peter; Scheidt Daniel; Cai Yong
Source:
Environmental Science & Technology 2015 v.49 no.16 pp. 9714-9723
ISSN:
1520-5851
Subject:
anthropogenic activities; arsenic; atmospheric deposition; cadmium; chromium; copper; dry season; ecosystems; environmental factors; farms; fauna; guidelines; humans; lead; mercury; nickel; organic matter; pollution; regression analysis; risk; sediments; toxicity; urban areas; water quality; wet season; wetland soils; wetlands; zinc; Florida
Abstract:
... The Florida Everglades is an environmentally sensitive wetland ecosystem with a number of threatened and endangered fauna species susceptible to the deterioration of water quality. Several potential toxic metal sources exist in the Everglades, including farming, atmospheric deposition, and human activities in urban areas, causing concerns of potential metal exposure risks. However, little is known ...
DOI:
10.1021/acs.est.5b01638

34. Evaluation of water quality threats to the endangered Okaloosa darter (Etheostoma okaloosae) in East Turkey Creek on Eglin Air Force Base

Author:
R.E. Weil; D.J. Spade; I. Knoebl; J.M. Hemming; M.L. Tongue; N.J. Szabo; K.J. Kroll; W.B. Tate; N.D. Denslow
Source:
Aquatic toxicology 2012 v.110-111 no. pp. 177-186
ISSN:
0166-445X
Subject:
Etheostoma; Pimephales promelas; anthropogenic activities; cell cycle; dissolved oxygen; gene expression; genes; habitats; hydrology; liver; metabolism; minnows; primary productivity; samplers; soil erosion; streams; stress response; temperature; testes; transcription (genetics); translation (genetics); turbidity; water quality; watersheds; Florida
Abstract:
... The threatened Okaloosa darter (Etheostoma okaloosae) is found almost exclusively on the Eglin Air Force Base in the Choctawhatchee Bay watershed of Florida. Portions of this limited habitat are threatened with soil erosion, altered hydrology, and impaired water quality. In the present study, general water quality parameters (i.e., dissolved oxygen, specific conductance, pH, temperature, relative ...
DOI:
10.1016/j.aquatox.2012.01.007
PubMed:
22326655

35. Evolution of the oxbow morphology of the Caloosahatchee River in South Florida

Author:
Chloe Delhomme; Kamal A. Alsharif; John C. Capece
Source:
Applied geography 2013 v.39 pp. 104-117
ISSN:
0143-6228
Subject:
anthropogenic activities; channelization; cross-sectional studies; ecosystems; geography; land use; rivers; surface water; water management; Florida
Abstract:
... The Caloosahatchee River, located in Southern Florida, was originally a meandering and relatively shallow river. During the 1920s, the Caloosahatchee River was channelized and became the C-43 canal. The channelization has significantly impacted the river ecosystem, particularly the oxbows. The oxbows are the U-shaped water bodies on each side of the river channel, which are the remnant bends of th ...
DOI:
10.1016/j.apgeog.2012.12.008

36. Examination of Metals from Aerospace-Related Activity in Surface Water Samples from Sites Surrounding the Kennedy Space Center (KSC), Florida

Author:
Bowden John A.; Cantu Theresa M.; Scheidt Douglas M.; Lowers Russell H.; Nocito Brian A.; Young Vaneica Y.; Guillette Louis J.
Source:
Environmental Science & Technology 2014 v.48 no.9 pp. 4672-4680
ISSN:
1520-5851
Subject:
aerospace technology; aluminum; anthropogenic activities; arsenic; conservation areas; copper; environmental monitoring; iron; lead; manganese; molybdenum; nickel; spectroscopy; surface water; temporal variation; water pollution; zinc; Florida
Abstract:
... Metal contamination from Space Shuttle launch activity was examined using inductively coupled plasma-atomic emission spectroscopy in a two-tier study sampling surface water collected from several sites at the Kennedy Space Center (KSC) and associated Merritt Island National Wildlife Refuge in east central Florida. The primary study examined both temporal changes in baseline metal concentrations (1 ...
DOI:
10.1021/es4047796

37. Experimental evidence for weak effects of fire ants in a naturally invaded pine‐savanna ecosystem in north Florida

Author:
JOSHUA R. KING; WALTER R. TSCHINKEL
Source:
Ecological entomology 2013 v.38 no.1 pp. 68-75
ISSN:
0307-6946
Subject:
Solenopsis invicta; anthropogenic activities; ecosystems; environmental impact; fire ants; habitats; pitfall traps; savannas; species diversity; Florida
Abstract:
... 1. Fire ants naturally invade some undisturbed ecosystems of high conservation value and may negatively impact co‐occurring ants. 2. Over 3 years, fire ants were added and removed from a longleaf pine savanna ecosystem that naturally supports a low density of fire ants. Impacts on co‐occurring ants were monitored using pitfall traps. 3. Treatments resulted in significant differences in average fir ...
DOI:
10.1111/j.1365-2311.2012.01405.x

38. Experimental evidence that human impacts drive fire ant invasions and ecological change

Author:
King, Joshua R.; Tschinkel, Walter R.
Source:
Proceedings of the National Academy of Sciences of the United States of America 2008 v.105 no.51 pp. 20339-20343
ISSN:
0027-8424
Subject:
insect colonies; plant communities; agricultural land; Solenopsis invicta; mowing; plowing; species diversity; population density; anthropogenic activities; invasive species; ecological invasion; fire ants; Florida
Abstract:
... Biological invasions are often closely associated with human impacts and it is difficult to determine whether either or both are responsible for the negative impacts on native communities. Here, we show that human activity, not biological invasion, is the primary driver of negative effects on native communities and of the process of invasion itself. In a large-scale experiment, we combined additio ...
DOI:
10.1073/pnas.0809423105
PubMed:
19064909
PubMed Central:
PMC2629336

39. Exposure of marine turtle nesting grounds to coastal modifications: Implications for management

Author:
Kristen A. Nelson Sella; Mariana M.P.B. Fuentes
Source:
Ocean & coastal management 2019 v.169 pp. 182-190
ISSN:
0964-5691
Subject:
anthropogenic activities; beaches; cleaning; coastal zone management; coasts; cumulative exposure; databases; habitats; humans; nesting; planting; sand; sea turtles; shorelines; stormwater; vegetation; Florida
Abstract:
... Coastal areas are used by both marine turtles and humans which may result in marine turtle nesting grounds being exposed to human activities like coastal modifications. Several studies have investigated the effects of specific types of coastal modifications on marine turtles and their habitat. However, limited information exists on cumulative exposure of nesting grounds to coastal modifications. T ...
DOI:
10.1016/j.ocecoaman.2018.12.011

40. Factors Controlling Phytoplankton Biomass in a Subtropical Coastal Lagoon: Relative Scales of Influence

Author:
Nicole Dix; Edward Phlips; Peter Suscy
Source:
Estuaries and coasts 2013 v.36 no.5 pp. 981-996
ISSN:
1559-2723
Subject:
anthropogenic activities; biomass; ecosystems; estuaries; filtration; grazing; nutrient content; oysters; phytoplankton; rivers; spring; summer; temporal variation; water temperature; winter; zooplankton; Florida
Abstract:
... Patterns in phytoplankton biomass are essential to understanding estuarine ecosystem structure and function and are the net result of various gain and loss processes. In this study, patterns in phytoplankton biomass were explored in relation to a suite of potentially regulating factors in a well-flushed, subtropical lagoon, the Matanzas River Estuary (MRE) in northeast Florida. We examined tempora ...
DOI:
10.1007/s12237-013-9613-4

41. Factors determining the distributions of total phosphorus, total nitrogen, and chlorophyll a in Florida lakes

Author:
Roger W. Bachmann; Dana L. Bigham; Mark V. Hoyer; Daniel E. Canfield
Source:
Lake and reservoir management 2012 v.28 no.1 pp. 10-26
ISSN:
1040-2381
Subject:
nitrogen content; lakes; landscapes; edaphic factors; population growth; anthropogenic activities; point source pollution; nutrients; chlorophyll; phosphorus; Florida
Abstract:
... Using data from 1387 lakes collected over 3 decades, we found a wide range in the concentrations of total phosphorus (TP), total nitrogen (TN) and chlorophyll (Chl-a) in Florida lakes, and that edaphic factors as outlined by the United States Environmental Protection Agency's Florida Lake Regions were dominant in determining the concentrations of plant nutrients in the state's lakes. The hypothesi ...
DOI:
10.1080/07438141.2011.646458

42. Fire environment effects on particulate matter emission factors in southeastern U.S. pine-grasslands

Author:
Kevin M. Robertson; Yuch P. Hsieh; Glynnis C. Bugna
Source:
Atmospheric environment 2014 v.99 pp. 104-111
ISSN:
1352-2310
Subject:
adverse effects; ambient temperature; anthropogenic activities; atmospheric chemistry; biomass; botanical composition; combustion; conifer needles; emissions factor; fire behavior; forest stands; fuels; grasses; human health; humidity; inventories; land use; meteorology; models; particulate emissions; particulates; prescribed burning; scanning electron microscopy; structural equation modeling; vegetation; water content; wildfires; Florida; Georgia
Abstract:
... Particulate matter (PM) emission factors (EFPM), which predict particulate emissions per biomass consumed, have a strong influence on event-based and regional PM emission estimates and inventories. PM < 2.5 μm aerodynamic diameter (PM2.5), regulated for its impacts to human health and visibility, is of special concern. Although wildland fires vary widely in their fuel conditions, meteorology, and ...
DOI:
10.1016/j.atmosenv.2014.09.058

43. Fish dispersal in a seasonal wetland: influence of anthropogenic structures

Author:
Hohausová, Eva; Lavoy, Richard J.; Allen, Micheal S.
Source:
Marine & freshwater research 2010 v.61 no.6 pp. 682-694
ISSN:
1323-1650
Subject:
Elassoma; Erimyzon; Gambusia holbrooki; Lepomis macrochirus; anthropogenic activities; fish; habitats; indigenous species; lakes; land management; landscapes; railroads; roads; sand; seasonal wetlands; soil; Florida
Abstract:
... Knowledge of fish dispersal routes when exploiting temporary habitat is important for understanding the ecology of species and for designing and conducting conservation and land-management activities. We evaluated fish dispersal in a network of seasonal habitats and a permanent fish source (a lake) in a subtropical wetland, in Florida, sampled biweekly from May 2002 to May 2003. Fish dispersal rou ...
DOI:
10.1071/MF09140

44. Genetic Diversity and Geographic Differentiation of Tung Tree, Vernicia Fordii (Euphorbiaceae), A Potential Biodiesel Plant Species with Low Invasion Risk

Author:
Lingling Zhang; Xionglun Liu; Junhua Peng
Source:
Agronomy 2019 v.9 no.7 pp. -
ISSN:
2073-4395
Subject:
Vernicia fordii; anthropogenic activities; biodiesel; breeding; gene flow; genetic variation; genotyping; geographical distribution; germplasm; germplasm conservation; indigenous species; invasive species; microsatellite repeats; oils; oligodeoxyribonucleotides; trees; woody plants; China; Florida; Vietnam
Abstract:
... The tung tree, Vernicia fordii (Herbert Kenneth Airy Shaw), is a woody species native to South-East Asia (from Central and Southwest China to North Vietnam), which is also cultivated in China for the production of industrial oil. It is listed as a Category II invasive plant species in Florida, USA. During the introduction period of the tung tree from China to other countries in the last century, i ...
DOI:
10.3390/agronomy9070402

45. Genetic consequences of habitat fragmentation and loss: the case of the Florida black bear (Ursus americanus floridanus)

Author:
Dixon, Jeremy D.; Oli, Madan K.; Wooten, Michael C.; Eason, Thomas H.; McCown, J. Walter; Cunningham, Mark W.
Source:
Conservation genetics 2007 v.8 no.2 pp. 455-464
ISSN:
1566-0621
Subject:
Ursus americanus; anthropogenic activities; gene flow; genetic variation; genotyping; habitat destruction; habitat fragmentation; habitats; heterozygosity; microsatellite repeats; Florida
Abstract:
... Habitat loss and fragmentation can influence the genetic structure of biological populations. We studied the genetic consequences of habitat fragmentation in Florida black bear (Ursus americanus floridanus) populations. Genetic samples were collected from 339 bears, representing nine populations. Bears were genotyped for 12 microsatellite loci to estimate genetic variation and to characterize gene ...
DOI:
10.1007/s10592-006-9184-z

46. Genetic diversity and relatedness of the mangrove Rhizophora mangle L. (Rhizophoraceae) using amplified fragment polymorphism (AFLP) among locations in Florida, USA and the Caribbean

Author:
M. Albrecht; K. M. Kneeland; E. Lindroth; J. E. Foster
Source:
Journal of coastal conservation 2013 v.17 no.3 pp. 483-491
ISSN:
1400-0350
Subject:
Rhizophora mangle; amplified fragment length polymorphism; anthropogenic activities; ecosystems; gene flow; genetic variation; habitat destruction; islands; latitude; variance; Caribbean; Florida
Abstract:
... Rhizophora mangle L. is a widespread mangrove species in the Western Hemisphere. Mangrove habitat loss and their importance to coastal and reef ecosystems make greater understanding of their genetic structure useful for conservation and management. An amplified fragment polymorphism (AFLP) analysis was performed on samples from Florida and the Caribbean to discover the genetic structure present. R ...
DOI:
10.1007/s11852-013-0246-3

47. Genetic relationships and hybridization among three western Atlantic sparid species: sheepshead (Archosargus probatocephalus), sea bream (A. rhomboidalis) and pinfish (Lagodon rhomboides)

Author:
Seifu Seyoum; Douglas H. Adams; Richard E. Matheson; James A. Whittington; Alicia C. Alvarez; Nancy E. Sheridan; Kaitlin Panzner; Cecilia Puchulutegui
Source:
Conservation genetics 2020 v.21 no.1 pp. 161-173
ISSN:
1566-0621
Subject:
Archosargus probatocephalus; Lagodon rhomboides; anthropogenic activities; females; genetic markers; genetic relationships; habitats; hybrids; introgression; introns; long term effects; males; mitochondrial DNA; nuclear genome; rivers; spawning; Florida
Abstract:
... Three species of sparids in the western Atlantic, sheepshead (Archosargus probatocephalus), sea bream (A. rhomboidalis), and pinfish (Lagodon rhomboides), share overlapping habitats, spawning seasons, and spawning grounds, providing opportunities for interaction among these species. Three regions of mitochondrial DNA and three nuclear DNA intron sequences were used to construct the genetic relatio ...
DOI:
10.1007/s10592-019-01244-7

48. Geographic Distributions of Strumigenys gundlachi and Strumigenys eggersi (Hymenoptera, Formicidae)

Author:
James K. Wetterer
Source:
Transactions of the American Entomological Society 2018 v.144 no.1 pp. 131-141
ISSN:
0002-8320
Subject:
Formicidae; anthropogenic activities; geographical distribution; habitat preferences; habitats; islands; soil arthropods; tropical forests; American Samoa; Caribbean; Central America; Cuba; Florida; Singapore
Abstract:
... Strumigenys gundlachi and Strumigenys eggersi are tiny predatory ants that feed on minute soil arthropods. Both these closely related New World species were originally described from Caribbean islands (S. gundlachi from Cuba, S. eggersi from St Thomas) and both are known from South and Central America, the West Indies, and peninsular Florida. Recently, exotic Old World populations of S. eggersi we ...
DOI:
10.3157/061.144.0101

49. Geographical differences in behavioral responses to hypoxia: local adaptation to an anthropogenic stressor?

Author:
Mary Beth Decker; Denise L. Breitburg; Nancy H. Marcus
Source:
Ecological applications 2003 v.13 no.4 pp. 1104-1109
ISSN:
1051-0761
Subject:
Acartia tonsa; anthropogenic activities; anthropogenic stressors; aquatic ecosystems; aquatic food webs; dissolved oxygen; estuaries; geographical variation; humans; hypoxia; oxygen; prey species; Chesapeake Bay; Florida
Abstract:
... Stressors resulting from, or exacerbated by, human activities increasingly alter ecological systems. Behavioral responses that enhance survival of stressed individuals may be critical for local populations to persist. Although the types and intensities of stressors can vary over the geographic range of a species, little is known regarding geographical variation in adaptive behavioral responses to ...
DOI:
10.1890/1051-0761(2003)13[1104:GDIBRT]2.0.CO;2

50. Geological Responses to Urbanization of the Naples Bay Estuarine System, Southwestern Florida, USA

Author:
Timothy M. Dellapenna; Bryan Fielder; Christian J. Noll IV; Michael Savarese
Source:
Estuaries and coasts 2015 v.38 no.Supplement 1 pp. 81-96
ISSN:
1559-2723
Subject:
anthropogenic activities; bedrock; coasts; oysters; reefs; sand; soil; urbanization; watersheds; Florida
Abstract:
... The Naples–Dollar Bay Estuarine System (NDBES), situated in southwestern Florida, has undergone extensive modifications caused directly and indirectly by anthropogenic influences. These alterations include: (1) the substitution of mangrove-forested shorelines with concrete bulkheads and installation of residential canals; (2) installation of a regionally extensive navigational channel; and (3) can ...
DOI:
10.1007/s12237-013-9704-2