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 ...
... 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 ...
... 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 ...
... 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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
... 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 ...
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 ...
... 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) ...
... 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 ...
... 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 ...
... Linear bioenergy buffers planted with fast-growing trees along field edges are increasingly used to address challenges related to sustainable biomass production, climate change mitigation (i.e., carbon storage and microclimate regulation), water quality protection, and forest habitat connectivity in agricultural landscapes. This study assessed: (1) the extent to which 15 m wide hybrid poplar bioen ...
Isopoda; Physalaemus; diet; forest habitats; forests; grasslands; nitrogen; species richness; Brazil
Abstract:
... Species richness and abundance, as well as trophic relationships, are affected by habitat configuration. Smaller habitat patches suffer greater external interference, being more susceptible to diversity loss and could also receive more trophic subsidies from outside or matrix, which can favour the maintenance of populations even in small patches. Natural mosaics of forest patches in a grassland ma ...
Glaucomys sabrinus; Sequoia sempervirens; cameras; conservation status; forest habitats; old-growth forests; second growth; secondary forests; California
Abstract:
... Developing methods to effectively survey small, nocturnal mammals is important for conservation and management, as they are prey for many other species, including those of conservation concern, and may be threatened or endangered themselves. The Humboldt's Flying Squirrel (Glaucomys oregonensis), previously thought to be part of the Northern Flying Squirrel species (Glaucomys sabrinus), was recent ...
... Catastrophic wind disturbance affects not only forest structure and regeneration, but also functional and compositional dynamics of the herbaceous layer. However, the issue of changes in functional diversity and functional trait values of the understory layer in response to wind disturbance has not been addressed so far. This study aims at investigating the patterns of variations in functional div ...
business enterprises; forest habitats; refining; surveys; North Carolina
Abstract:
... Winter Bird Population Studies (WBPS) were initiated in 1948. The recommended minimum number of surveys for WBPS plots has been 8, but examination of the influence of the number of surveys on counts of individual species on WBPS plots has been restricted to only a few types of forested habitats in eastern North America. This study documents that 10 surveys, not 8, were required to produce stable m ...
Céline Moreaux; Desirée A.L. Meireles; Jesper Sonne; Ernesto I. Badano; Alice Classen; Adrian González-Chaves; Juliana Hipólito; Alexandra-Maria Klein; Pietro K. Maruyama; Jean Paul Metzger; Stacy M. Philpott; Carsten Rahbek; Fernanda T. Saturni; Tuanjit Sritongchuay; Teja Tscharntke; Shinsuke Uno; Carlos H. Vergara; Blandina F. Viana; Niels Strange; Bo Dalsgaard
Coffea arabica; agriculture; animals; bees; environment; forest canopy; forest habitats; fruit set; intensive farming; land use change; pollination; pollinators; remote sensing; species richness
Abstract:
... Animal pollinators are globally threatened by anthropogenic land use change and agricultural intensification. The yield of many food crops is therefore negatively impacted because they benefit from biotic pollination. This is especially the case in the tropics. For instance, fruit set of Coffea arabica has been shown to increase by 10–30% in plantations with a high richness of bee species, possibl ...
... Forest loss and degradation are the most significant threats to terrestrial biodiversity in the tropics. Promoting flagship or umbrella species is a strategy that can be used to conserve intact forests and restore degraded ecosystems, conserve biodiversity, and achieve sustainable development goals. The Bale monkey (Chlorocebus djamdjamensis) is an arboreal, forest-dwelling, threatened primate res ...
afforestation; carbon sequestration; carbon sinks; forest habitats; forests; meteorology; water security; China
Abstract:
... In the background of global warming, the carbon stock of afforestation is increasingly important. However, afforestation may consume large amounts of water, putting pressure on regional water resources. How to balance the carbon stock and water consumption of afforestation is a vital problem throughout the world. The Three-North Shelterbelt may be a vital carbon pool in the future while consuming ...
... Using silviculture treatments as a tool to create habitat for wildlife is a common practice in wildlife conservation and natural resource management. Although diverse forest age structures and composition benefit many wildlife species, relatively little is known about bat response to young forest habitat. Understanding how the activity of bats changes as young forests age, and the influence of lan ...
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 ...
... Characterizing patterns of habitat use is an important first step for effective conservation planning. Species restricted to low‐lying islands are at greatest risk from climate change‐related sea level rise, and requirements for breeding and foraging habitat may determine their risk from tidal inundation. The endangered Micronesian Scrubfowl (Megapodius laperouse senex) is a model species for unde ...
butterflies; community structure; dry environmental conditions; ecosystems; forest habitats; forests; habitat destruction; habitat fragmentation; landscapes; models; species richness; streams; sugarcane
Abstract:
... The composition of communities of fruit‐feeding butterflies in the Brazilian Atlantic forest changes in response to landscape fragmentation and can be used as an indicator of habitat quality. Landscape fragmentation, aridity, and early signs of global warming at the northernmost distribution of this biome may impose extra challenges for species persistence. We aim to clarify the drivers of fruit‐f ...
... Butterflies are good indicators of environmental health, and they play a critical role in the food chain. Butterfly diversity and abundance were studied for the first time at three forests and their surrounding habitats in northwestern Ethiopia, a borderline ecosystem between the subtropical savannah and the Ethiopian highlands (Afromontane). Butterfly species richness and abundance were assessed ...
forest habitats; forests; information systems; wood
Abstract:
... The paper presents a method for grouping forest districts that are characterised by similar natural and forest conditions and the results of standardisation of wood extraction costs for forest districts and regional directorates of the State Forests. The adopted standard costs referred to the costs which determine the reasonable level of costs necessary to perform a specific management task in the ...
... An intensive census, extended over a period of approximately three and a half years, October 2017– May 2021, was conducted in the remaining green areas of the Macau SAR in order to provide an updated status of the biodiversity of longhorn beetles in this region. This insect group includes more than 36,000 species worldwide, subdivided into four families of mainly xylophagous or saproxylic insects, ...
... Natural disturbances are major drivers of forest dynamics. However, in the current context of anthropogenic global warming, shifts in disturbance regimes are expected. Natural disturbances usually leave biological or structural legacies which are important for early-successional species. Nevertheless, these legacies are usually eliminated by forest managers through salvage logging. Here, we invest ...