Results 31 to 40 of about 292,514 (297)

Imperfect detection biases extinction‐debt assessments

open access: yesConservation Science and Practice, 2021
Freshwater ecosystems have been substantially altered, threatening the survival and recovery of aquatic species at risk. Estimating the likelihood and magnitude of future extinctions (extinction debt; ED) is integral for conserving biodiversity and ...
Fielding A. Montgomery   +2 more
doaj   +1 more source

Global analysis of threat status reveals higher extinction risk in tropical than in temperate bird sister species [PDF]

open access: yes, 2019
Given increasing pressures upon biodiversity, identification of species’ traits related to elevated extinction risk is useful for more efficient allocation of limited resources for nature conservation.
Reif, Jiří, Štěpánková, Klára
core   +2 more sources

The threatened status of restricted-range coral reef fish species [PDF]

open access: yes, 2000
Coral reefs are the most diverse ecosystem in the sea. Throughout the world they are being overfished, polluted and destroyed, placing biodiversity at risk.
Clark, V, Hawkins, J P, Roberts, C M
core   +1 more source

Extinction risks of Amazonian plant species [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
Estimates of the number, and preferably the identity, of species that will be threatened by land-use change and habitat loss are an invaluable tool for setting conservation priorities. Here, we use collections data and ecoregion maps to generate spatially explicit distributions for more than 40,000 vascular plant species from the Amazon basin ...
Kenneth J, Feeley, Miles R, Silman
openaire   +2 more sources

Global Trends in the Status of Bird and Mammal Pollinators [PDF]

open access: yes, 2015
Biodiversity is declining, with direct and indirect effects on ecosystem func-tions and services that are poorly quantified. Here, we develop the first globalassessment of trends in pollinators, focusing on pollinating birds and mam-mals.
Barnosky   +40 more
core   +1 more source

Extinction risk by mutational meltdown [PDF]

open access: yes, 1994
Bürger, Reinhard   +2 more
core   +2 more sources

Human population density and extinction risk in the world's carnivores. [PDF]

open access: yesPLoS Biology, 2004
Understanding why some species are at high risk of extinction, while others remain relatively safe, is central to the development of a predictive conservation science.
Marcel Cardillo   +5 more
doaj   +1 more source

Relative Importance of Ecological, Evolutionary and Anthropogenic Pressures on Extinction Risk in Chinese Angiosperm Genera

open access: yesFrontiers in Ecology and Evolution, 2022
China has many threatened plant species, which are exposed to environmental degradation and other anthropogenic pressures. We assessed support for potential extinction pathways in Chinese angiosperm genera and quantified possible threats to phylogenetic ...
Haibin Yu   +4 more
doaj   +1 more source

Drivers of extinction risk in African mammals: the interplay of distribution state, human pressure, conservation response and species biology [PDF]

open access: yes, 2014
Although conservation intervention has reversed the decline of some species, our success is outweighed by a much larger number of species moving towards extinction.
BOITANI Luigi   +8 more
core   +1 more source

Area‐based assessment of extinction risk [PDF]

open access: yesEcology, 2012
Underpinning the International Union for Conservation of Nature (IUCN) Red List is the assessment of extinction risk as determined by the size and degree of loss of populations. The IUCN system lists a species as Critically Endangered, Endangered, or Vulnerable if its population size declines 80%, 50%, or 30% within a given time frame.
openaire   +3 more sources

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