Results 21 to 30 of about 292,514 (297)
Climate change and the selective signature of the Late Ordovician mass extinction [PDF]
, 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
Survival of small populations under demographic stochasticity [PDF]
, 1992 We estimate the mean time to extinction of small populations in an environment with constant carrying capacity but under stochastic demography. In particular, we investigate the interaction of stochastic variation in fecundity and sex ratio under several
Bell +24 more
core +1 more source
Planning for megafauna recovery in the tropical rainforests of Sumatra
Frontiers in Ecology and Evolution, 2023 Human-induced forest loss has had devastating impacts on biodiversity. Mammal populations in the tropics have been hit particularly hard by the resulting habitat loss, fragmentation and degradation, as well as by overhunting which often goes hand-in-hand.
Muhammad I. Lubis +16 more
doaj +1 more source
Multispecies approaches to status assessments in support of endangered species classifications
Conservation Science and Practice, 2022 Multispecies risk assessments have developed within many international conservation programs, reflecting a widespread need for efficiency. Under the United States Endangered Species Act (ESA), multispecies assessments ultimately lead to species‐level ...
Daniel B. Fitzgerald +6 more
doaj +1 more source
Extinction in a branching process: Why some of the fittest strategies cannot guarantee survival [PDF]
, 2013 The fitness of a biological strategy is typically measured by its expected reproductive rate, the first moment of its offspring distribution. However, strategies with high expected rates can also have high probabilities of extinction. A similar situation
Klaere, Steffen, Sawaya, Sterling
core +2 more sources
Predicting Extinction Risk for Data Deficient Bats
Diversity, 2018 Conservation biology aims to identify species most at risk of extinction and to understand factors that forecast species vulnerability. The International Union for Conservation of Nature (IUCN) Red List is a leading source for extinction risk data of ...
Jessica Nicole Welch +1 more
doaj +1 more source
Conservation status, threats, and information needs of small mammals in Alaska
Conservation Science and Practice, 2022 Small mammals are under‐represented in conservation research relative to other mammals. We assessed the conservation status of 36 small mammal species in Alaska, USA using the Alaska Species Ranking System (ASRS).
Amanda Droghini +4 more
doaj +1 more source
How predictable are mass extinction events?
Royal Society Open Science, 2023 Many modern extinction drivers are shared with past mass extinction events, such as rapid climate warming, habitat loss, pollution and invasive species.
William J. Foster +9 more
doaj +1 more source
First record of the “Matrinxã” Brycon amazonicus (Agassiz 1829) (Characiformes: Bryconidae) in the Rio Paranapanema mouth region, Upper Rio Paraná basin, Brazil [PDF]
Acta Limnologica Brasiliensia: The Rio Paranapanema is one of the most important tributaries of the Upper Rio Paraná, and in recent decades there has been a marked decline in the population of native species due to the development of a series of reservoirs and the introduction of ...
Renan Borges dos Reis +3 more
doaj +1 more source
Conservation Letters, 2020 The International Union for Conservation of Nature's (IUCN) Red List is the global standard for quantifying extinction risk but assessing population reduction (criterion A) of wide‐ranging, long‐lived marine taxa remains difficult and controversial.
Richard B. Sherley +10 more
doaj +1 more source