An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
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.
analysis of variance; biomass; cluster analysis; correspondence analysis; cultivation area; ecosystems; food chain; forest habitats; forests; grasslands; soil arthropods; soil water content; species richness; Ethiopia
Abstract:
... Arthropods are indispensable because of their role in the food chain and in the recycling of ecosystem resources. The objective of the study was to assess the diversity and abundance of soil arthropods in selected habitats in northwestern Ethiopia. Soil arthropod taxa richness and abundance were estimated using transect sampling from January 2019 to May 2020. Data were analyzed using analysis of v ...
... Epipactis atrorubens (Hoffm.) Besser. is a regionally rare orchid species with highly ornamental properties due to its very beautiful bright flowers, therefore it is of considerable interest as a horticultural plant for use in botanical gardens and greenhouses. The objective of the research was to assess metal accumulation and some pro- and antioxidant reactions in E. atrorubens, colonizing serpen ...
... Comparative population genetic studies of closely related taxa provide a powerful framework for evaluating if and to what degree a species of conservation concern has been negatively impacted by factors such as habitat fragmentation, decreased population connectivity, inbreeding and genetic drift. In this study, we take advantage of a paired sampling strategy to compare the population genetics of ...
... The present study was conducted to understand the avian species distribution pattern along the elevational zone in forest habitat of Nainital district of Uttarakhand. The study was conducted during January 2017 to January 2020. Total 132 species belonging to 43 families, Diversity indices and non-parametric estimators (Chao1, Chao2, and Jackknief) values were high at 1500 m asl (mid elevation) alo ...
Eucalyptus marginata; Tachyglossidae; bioturbation; forest ecosystems; forest habitats; forests; fungi; geographical distribution; mammals; soil; species recruitment; zoology; Australia
Abstract:
... Bioturbation by digging animals is important for key forest ecosystem processes such as soil turnover, decomposition, nutrient cycling, water infiltration, seedling recruitment, and fungal dispersal. Despite their widespread geographic range, little is known about the role of the short-beaked echidna (Tachyglossus aculeatus) in forest ecosystems. We measured the density and size of echidna digging ...
... Hurricanes alter forest habitat by opening the canopy and depositing fresh wood and leaves. The objectives of this study were to evaluate the effects of hurricane and drought‐driven changes to forests on green litter decomposition, invertebrate communities, and nutrient mineralization over a short period (6 months) after disturbance. We used three complete replicated blocks with two canopy treatme ...
... In this review, we focus on the importance of the dynamics of hemiboreal trees in the existing forest landscape and habitats for the genetic monitoring of community phenology, in order to obtain characteristic plant cycles as well as their responses to seasonal and climatic changes. The goal of our review is to: (i) determine the regenerative behaviour of hemiboreal tree species, (ii) propose a co ...
Amanda M. Franklin; Katrina J. Rankin; Laura Ospina Rozo; Iliana Medina; Jair E. Garcia; Leslie Ng; Caroline Dong; Lu‐Yi Wang; Anne E. Aulsebrook; Devi Stuart‐Fox
... Some animals, including certain fish, beetles, spiders and Lepidoptera chrysalises, have such shiny or glossy surfaces that they appear almost mirror‐like. A compelling but unsubstantiated hypothesis is that a highly specular or mirror‐like appearance enhances survival by reflecting the surrounding environment and reducing detectability. We tested this hypothesis by asking human participants to we ...
... The damage to trees that is caused by ungulate species is a natural result of their presence in ecosystems. High densities of ungulates may have a negative effect on biodiversity and the regeneration and survival of trees. The aim of this study was to identify the factors that affect the probability of the occurrence of damage in forest stands as a result of the presence of European bison (Bison b ...
Maria Voigt; Hjalmar S. Kühl; Marc Ancrenaz; David Gaveau; Erik Meijaard; Truly Santika; Julie Sherman; Serge A. Wich; Florian Wolf; Matthew J. Struebig; Henrique M. Pereira; Isabel M.D. Rosa
Elaeis guineensis; Pongo pygmaeus; biodiversity; case studies; deforestation; forest habitats; habitat destruction; models; population dynamics; risk; wildlife
Abstract:
... Assessing where wildlife populations are at risk from future habitat loss is particularly important for land-use planning and avoiding biodiversity declines. Combining projections of future deforestation with species density information provides an improved way to anticipate such declines. Using the critically endangered Bornean orangutan (Pongo pygmaeus) as a case study we applied a spatio-tempor ...
... Deforestation often results in landscapes where remaining forest habitat is highly fragmented, with remnants of different sizes embedded in an often highly contrasting matrix. Local extinction of species from individual fragments is common, but the demographic mechanisms underlying these extinctions are poorly understood. It is often hypothesized that altered environmental conditions in fragments ...
... Urbanization is one of the strongest habitat transforming processes today that has resulted in changes in the ecological conditions for wild populations. In birds, the limitation of natural food sources and a warmer microclimate in cities can potentially influence the development and functioning of the plumage that may have important fitness consequences. Despite its potential significance, the pl ...
Spartina; climate change; community structure; ecosystems; forest habitats; forests; introduced species; invasive species; plant communities; salt marshes; species diversity; urbanization; wildfires; wildlife; New York
Abstract:
... Coastal marshes are dynamic ecosystems that provide essential ecosystem services and are impacted by a variety of natural and anthropogenic disturbances including flooding, fire, climate change, and urbanization. Coastal saltmarshes are sometimes managed through prescribed burning to enhance habitat value for wildlife and increase plant diversity, but this practice is uncommon in urbanized environ ...
Dryomyza; Fanniidae; Muscina; Piophilidae; forensic entomology; forensic sciences; forest habitats; medical entomology; sex ratio; sweep nets; swine; Poland
Abstract:
... Our knowledge on many necrophilous dipterans was limited for a long time mainly due to taxonomic issues. Therefore, findings on the sex-related associations with pig carcasses in Dryomyzidae, Fanniidae, Muscidae, and Piophilidae are presented. Moreover, the effectiveness of pitfall traps and sweep nets in fly sampling were compared, since the correct method of collecting insects is critical for th ...
Caprimulgus; Dendrocopos; Microstegium; Nectarinia; Ninox; Philippines; Pycnonotus; Rosales; avifauna; biodiversity; birds; charcoal; conservation status; forest habitats; forests; fuelwood; infrastructure; land use change; mists; threatened species
Abstract:
... Malaki ABB, Alcazar SMT, LILLO EP, Rosales RC, Redoblado BR, DIAZ JL. 2021. Diversity and conservation status of avifauna in Mount Lantoy Key Biodiversity Areas (KBA) in Cebu Island, Philippines. Biodiversitas 23: 671-678. A study on the bird community in Mount (Mt.) Lantoy Key Biodiversity Areas (KBA) was carried out to determine its diversity and conservation status to conserve, protect, and reh ...
applied ecology; climate change; drought; forest habitats; frost; geographical distribution; new species; seedlings; species diversity; spring; trees; Northeastern United States
Abstract:
... Species distribution models predict shifts in forest habitat in response to warming temperatures associated with climate change, yet tree migration rates lag climate change, leading to misalignment of current species assemblages with future climate conditions. Forest adaptation strategies have been proposed to deliberately adjust species composition by planting climate‐suitable species. Practical ...
Andry Laurent Razafimahefa; Maciej Marcin Nowak; Paweł Bogawski; Jean Michel Leong Pock Tsy; Miadana Harisoa Faramalala; Elisabeth Rabakonandrianina; Edmond Roger; Onja Hariveloniaina Razanamaro
... Adansonia rubrostipa (MALVACEAE family) is a threatened endemic baobab tree species of western Madagascar that is classified as a species of least concern (LC) on the IUCN Red List. Due to increased agricultural activity, its habitat is being modified and degraded. To assess the impact of habitat fragmentation on the generative growth of Adansonia rubrostipa, this initial study was undertaken. The ...
... Human land use is a driving force of habitat loss and modification globally, with consequences for wildlife species. The American marten (Martes americana) and fisher (Pekania pennanti) are forest‐dependent carnivores native to North America. Both species suffered population declines due to loss of forested habitat and overharvest for furs, and continued habitat modification is an ongoing threat. ...
Hymenoptera; Nothofagus antarctica; administrative management; birds; canopy; community structure; correspondence analysis; food availability; forest habitats; forests; long term effects; overstory; shrubs; silviculture; species richness; understory; Argentina
Abstract:
... Low intensity silviculture has been used to decrease the impact of forest harvesting, for example, on bird species and structural diversity. The objective of this work was to analyse the long-term effect of thinning on bird communities of Nothofagus antarctica forests in Tierra del Fuego (Argentina), compared with unthinned forests at two different locations. Thinning was performed 15 and 50 years ...
... A well‐known example of visual camouflage in birds is the plumage coloration of the Eurasian Treecreeper Certhia familiaris, yet this species’ camouflage has never been objectively quantified. Here, we quantify Treecreeper camouflage in its boreal forest habitat, test whether Treecreepers better match tree backgrounds at nest‐site, territory or habitat spatial scales, and explore which common tree ...
Samantha Standring; Melissa Sánchez-Herrera; Rhainer Guillermo-Ferreira; Jessica L. Ware; Yesenia Margarita Vega-Sánchez; Rebecca Clement; Jonathan P. Drury; Gregory F. Grether; Antonio González-Rodríguez; Luis Mendoza-Cuenca; Cornelio A. Bota-Sierra; Seth Bybee
Hetaerina; Oligocene epoch; Pliocene epoch; biogeography; data collection; fecundity; forest habitats; geographical distribution; paraphyly; taxonomic revisions; uncertainty; South America
Abstract:
... The damselflies Hetaerininae, a subfamily of Calopterygidae, comprise four genera distributed from North to South America: Hetaerina, Mnesarete, Ormenophlebia and Bryoplathanon. While several studies have focused on the intriguing behavioral and morphological modifications within Hetaerina, little of the evolutionary history of the group is well understood. Understanding the biogeographical histor ...
Anthropocene epoch; adults; biodiversity; clones; conservation status; environmental indicators; ferns and fern allies; forest habitats; habitat conservation; hydrology; mosses and liverworts; riparian forests; soil; streams; understory; Europe
Abstract:
... The recognition of the ecological quality of ecosystems and habitats therein is increasingly important in the Anthropocene. However, there are still scarcely explored ways of how and what to assess to obtain a sound ecological status of habitats. Ferns are an understudied plant group, especially given their usefulness as ecological indicators. Disentangling biotic and abiotic factors that drive fi ...
... Environmental stress can affect individual development and fitness in insects. Forest logging is a serious environmental stress for forest-specialist insects, such as the mound-building wood ant Formica aquilonia Yarrow 1955, which builds its nests into forests and is dependent on the nutrition provided by the forest habitat. We studied whether the logging causes such a strong environmental stress ...
Macrocystis pyrifera; Strongylocentrotus purpuratus; amino acid composition; coasts; ecological restoration; flavor; forest habitats; macroalgae; malnutrition; seafoods; North America
Abstract:
... Over the last decade, an overabundance of purple urchins (Strongylocentrotus purpuratus) that exert destructive grazing pressure on essential kelp forest habitat has caused a rapid expansion of barren grounds along the southwest coast of North America. Although the harvesting of several urchin species has led to high-value fisheries worldwide, purple urchins presently have little to no commercial ...
... The extent and abundance of Rytidosperma Steud. species in mixed woodland, forest and derived grassland was examined over a 15-year period following removal of long-term sheep grazing. Ground-layer vegetation in 73 permanent plots was surveyed five times between 2005 and 2020 in a 50-ha paddock on the southern tablelands of New South Wales. Sites were stratified over the slope positions and micro- ...
canopy gaps; energy; forest habitats; forests; habitat conservation; rights of way; songbirds; species abundance; species richness; spring; trees; wildlife management; Appalachian region; West Virginia
Abstract:
... The proliferation of energy rights‐of‐way (pipelines and powerlines; ROWs) in the central Appalachian region has prompted wildlife management agencies to consider ways to use these features to manage and conserve at‐risk songbird species. However, little empirical evidence exists regarding best management strategies to enhance habitat surrounding ROWs for the songbird community during stopover or ...
Muscardinus avellanarius; administrative management; body weight; energy expenditure; forest habitats; habitat fragmentation; home range; nests; probability; radio frequency identification; species richness; trees; woodlands; Denmark
Abstract:
... In fragmented forest landscapes, population persistence of arboreal species with limited dispersal ability may strongly depend on the quality of the remaining forest habitat. Using the hazel dormouse (Muscardinus avellanarius) as a model species, we studied habitat selection at two spatial scales (home range and within home range) in intensely managed woodlands at its northern distributional range ...
... Human-wild animal conflict has serious conservation consequences, both for populations of wild animals and for the people who live around wild animals’ habitats. The aim of this study was to assess the human-wild animal conflict in Banja Woreda, Awi Zone, Ethiopia. First, the area was selected purposively because it is expected to be prone to a high level of human-wild animal conflict, and then th ...
... Tropical forests are important to the regulation of climate and the maintenance of biodiversity on Earth. However, these ecosystems are threatened by climate change, as temperatures rise and droughts' frequency and duration increase. Xylem anatomical traits are an essential component in understanding and predicting forest responses to changes in water availability. We calculated the community‐weig ...
... Forest land has a vital role in our planet ecosystem health. Forest areas are under natural and human pressure worldwide. Pests may have irreparable damages to vegetation cover; Tortrix viridana is one of the most important pests in the western forests of Iran and is mainly hosted by oak trees. In this study the performance of Sentinel-2 images to detect infected oaks by T. viridana in the Zagros ...
Fagus; administrative management; biodiversity conservation; botanical composition; conservation status; data collection; forest habitats; forest inventory; forest stands; forestry development; forests; ground vegetation; stand development; tree height; trees; Carpathian region
Abstract:
... The distinction of changes in herb layer communities related to the dynamics of the forest stand and / or the regimes of forest management from that managed by random or non-random, global environmental disturbance, would allow for more precise recognition, and counteracting the effects of contemporary threats. In this work, we integrated databases of long-term vegetation records from tree researc ...
biodiversity; biodiversity conservation; clearcutting; data collection; forest habitats; forest management; habitat destruction; land cover; landscapes; Finland
Abstract:
... BACKGROUND: Protected areas (PA) are central to biodiversity, but their efficiency is challenged by human-induced habitat loss and fragmentation. In the Fennoscandian boreal region, forestry with clearcutting is a threat to biodiversity causing the loss of mature forest elements and deterioration of ecological processes in forest landscapes, ultimately affecting PAs via declined structural connect ...
... Many migratory bats require forested sites for roosting and foraging along their migration path, but increased urbanization and intensive agricultural practices may reduce the availability of stopover sites. Urban forests may provide important stopover habitat, maintaining landscape connectivity in regions where the majority of natural habitat has been cleared for development. Island biogeography ...
... Forest and wildlife management can help regulate the risk of human exposure to tick‐borne pathogens by influencing the population density of host‐seeking ticks and the pathogen infection prevalence in tick populations. For the blacklegged tick (Ixodes scapularis), also known as the deer tick, the overall density of host‐seeking nymphs and the density of nymphs infected with Borrelia burgdorferi se ...
... Disentangling the effects of different landscape and local attributes on the biota of habitat patches is often challenging. In Central European forest‐steppe ecosystems the high number of forest fragments and the relatively homogenous matrix between them offer the opportunity to disentangle the effects of habitat size and landscape structure (both landscape composition and landscape configuration) ...
Plethodon cinereus; administrative management; altitude; climate; extinction; forest habitats; forests; habitat destruction; habitat fragmentation; interspecific competition; probability; salamanders and newts; solar radiation; viability; West Virginia
Abstract:
... Amphibians are declining globally and while many factors are contributing to this decline, habitat loss and degradation caused by climate and land use changes are among the most critical. Habitat degradation and increased interspecific competition are both concerns for long-term viability of the federally-threatened Cheat Mountain salamander (Plethodon nettingi) which is endemic to high elevations ...
ecosystems; forest habitats; habitat destruction; home range; humans; juveniles; landscapes; montane forests; mortality; Andes region; South America
Abstract:
... Large raptors are the most mobile top predators in fragmented landscapes and, consequently, they are key components of ecosystems. However, large raptors (e.g. eagles), requiring large areas of forested habitat, are also among the most threatened groups of raptors in the world and are directly and indirectly affected by habitat loss and fragmentation. The Black-and-chestnut Eagle (Spizaetus isidor ...
... Many ecosystems have been modified by humans, creating novel habitats that include human‐provided resources. Gardens adjacent to native habitats may affect plant–pollinator interactions by altering the determinants of interactions and species specialization. Here, we characterized a network comprising plants and hummingbirds interacting in a birdwatching garden with human‐provided resources (necta ...
Bayesian theory; Eocene epoch; ancestry; data collection; dung beetles; entomology; feces; forest habitats; geographical distribution; habitat fragmentation; monophyly; new tribe; Madagascar; Reunion; Tanzania
Abstract:
... Paleotropical clades with largely disjunct distributions are ideal models for biogeographic reconstructions. The dung beetle genera Grebennikovius Mlambo, Scholtz & Deschodt, Epactoides Olsouffief and Ochicanthon Vaz‐de‐Mello are distributed in Tanzania, Madagascar and Réunion, and the Oriental region, respectively. We combine morphology and molecular dataset to reconstruct the phylogenetic relati ...
... Understanding the relationship between disturbance and forest community dynamics is a key factor in sustainable forest management and conservation planning. The study aimed to determine the main factors driving unusual differentiation of forest vegetation into four communities, all coexisting on the same geological substrate. The fieldwork, conducted on the fluvioglacial sand area in Central Polan ...
Kobus; chi-square distribution; descriptive statistics; forest habitats; national parks; population structure; riparian areas; vegetation cover; Ethiopia
Abstract:
... An investigation on population structure and habitat association of Defassa waterbuck (Kobus ellipsiprymnus Defassa) was carried out in Maze National Park between October 2018 and April 2019 for both wet and dry seasons. Sample counting based on the line-transect method was used. Habitat association was evaluated based on the number of individuals observed in different habitats. A total of 10 repr ...
... Information on animal diversity and distribution is essential for designing management plans for conservation. This study aimed to investigate primate diversity and species’ distributions in the Maze National Park, southern Ethiopia. The study was conducted during the dry season (January–March) and wet season (June–August) in 2020. Fourteen line transects in four stratified habitats were followed, ...
Pinus sylvestris; air; air pollution; carbon dioxide; coniferous forests; forest habitats; fossil fuels; fuel combustion; growth rings; soil pollution; trees; water; water use efficiency; wood
Abstract:
... The objective of this study was to analyze tree response to environmental pollution using basal area increment (BAI) tree ring stable isotopes and radiocarbon. Scots pine (Pinus sylvestris L.) was assessed from three fresh mixed coniferous forest habitat sites within highly urbanized and populated areas of Silesia subject to high levels of atmospheric pollution and were compared with trees from a ...
Dasyornis; biodiversity; fauna; fire frequency; fire history; forest habitats; grasses; habitat destruction; indigenous species; songbirds; woody plants; Australia
Abstract:
... Fire plays an important role in maintaining grassy forests, and reduced fire frequency has been linked to encroachment of woody plants into grassy forests and woodlands globally. In Australia a range of threatened animals, including the northern population of the endangered eastern bristlebird (Dasyornis brachypterus), are dependent on grassy forests. We examined this issue by collating three deca ...
... In order to determine the relationships between bird assemblages and forest habitat, we conducted surveys for bird assemblages in different forest habitats in the Khentii Mountain region, Northern Mongolia. A total of 1730 individuals belonging to 71 species from 23 families of 11 orders were recorded. Our findings revealed that passeriformes are the most species-rich order, accounting for 86.2% o ...
... Few studies have explicitly examined habitat use by shrews (Sorex spp.) in the boreal forest of western North America. We conducted pitfall trapping in six common xeric habitat types in Yukon, Canada, to determine their relative use by shrews. The overall capture rate was 0.47 shrews per 100 trap nights (TN), with a total sampling effort of 3652 TN. Cinereus shrews (Sorex cinereus; 0.25 per 100 TN ...
... Human land use and climate change have increased forest density and wildfire risk in dry conifer forests of western North America, threatening various ecosystem services, including habitat for wildlife. Government policy supports active management to restore historical structure and ecological function. Information on potential contributions of restoration to wildlife habitat can allow assessment ...
... Threats to ecosystems are ever increasing from different drivers mostly being linked to anthropogenic activities. This has brought about various measures to restore/protect the wildlife in these areas. Considering the background of most protected areas in East Africa, small mammals have been given least attention, compared with large mammals, although they play a fundamental role in maintaining ec ...
climate change; complement; forest habitats; forest management; forests; geographic information systems; humidity; normalized difference vegetation index; risk; satellites; water content; water reservoirs
Abstract:
... Measurement of water content in forest habitats is considered essential in ecological research on forests, climate change, or forest management. In the traditional forest habitat classification, two systems of habitat conditions analysis are found: single factor and multifactor methods. Both are laborious and therefore costly. Remote sensing methods provide a low-cost alternative. The aim of the p ...
Temnothorax; body size; cadmium; ecotoxicology; forest habitats; forests; hibernation; life history; metal tolerance; protein synthesis; spring; trace elements; winter
Abstract:
... A recent study showed that, in the ant Temnothorax nylanderi, city colonies are more tolerant to cadmium than forest colonies. However, because of annual variation in biological factors (e.g. body size, anti-stress protein production or trace metal accumulation rate), trace metal tolerance may vary over the year. We aimed at testing whether tolerance to cadmium of colonies of T. nylanderi differs ...