Results 41 to 50 of about 293,102 (343)

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

Accelerated mass extinction in an isolated biota during Late Devonian climate changes

open access: yesScientific Reports, 2021
The fossil record can illuminate factors that contribute to extinction risk during times of global environmental disturbance; for example, inferred thermal tolerance was an important predictor of extinction during several mass extinctions that ...
Jaleigh Q. Pier   +4 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

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

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

Climate change and the selective signature of the Late Ordovician mass extinction [PDF]

open access: yes, 2012
Selectivity patterns provide insights into the causes of ancient extinction events. The Late Ordovician mass extinction was related to Gondwanan glaciation; however, it is still unclear whether elevated extinction rates were attributable to record ...
Finnegan, Seth   +3 more
core   +3 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

Quantification of habitat fragmentation reveals extinction risk in terrestrial mammals [PDF]

open access: yes, 2017
Although habitat fragmentation is often assumed to be a primary driver of extinction, global patterns of fragmentation and its relationship to extinction risk have not been consistently quantified for any major animal taxon.
Butchart   +24 more
core   +1 more source

Geography of current and future global mammal extinction risk. [PDF]

open access: yesPLoS ONE, 2017
Identifying which species are at greatest risk, what makes them vulnerable, and where they are distributed are central goals for conservation science. While knowledge of which factors influence extinction risk is increasingly available for some taxonomic
Ana D Davidson   +8 more
doaj   +1 more source

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

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