Results 21 to 30 of about 291,668 (342)

Proceedings of the Mongolian Biodiversity Databank Workshop: Assessing the Conservation Status of Mongolian Mammals and Fishes: III – Fishes: Assessment Results and Threats [PDF]

open access: yesMongolian Journal of Biological Sciences, 2005
The Mongolian Biodiversity Databank Workshop was held at the National University of Mongolia and Hustai National Park from 1 st October to 4 th November, 2005.
Joanne F. Ocock   +3 more
doaj   +1 more source

Planning for megafauna recovery in the tropical rainforests of Sumatra

open access: yesFrontiers 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

Hurst Coefficient in long time series of population size: Model for two plant populations with different reproductive strategies [PDF]

open access: yes, 2010
Can the fractal dimension of fluctuations in population size be used to estimate extinction risk? The problem with estimating this fractal dimension is that the lengths of the time series are usually too short for conclusive results.
ADELA SALVADOR   +10 more
core   +2 more sources

Conservation status, threats, and information needs of small mammals in Alaska

open access: yesConservation 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

Global Estimation and Mapping of the Conservation Status of Tree Species Using Artificial Intelligence

open access: yesFrontiers in Plant Science, 2022
Trees are fundamental for Earth’s biodiversity as primary producers and ecosystem engineers and are responsible for many of nature’s contributions to people. Yet, many tree species at present are threatened with extinction by human activities.
Sandro Valerio Silva   +8 more
doaj   +1 more source

Survival of small populations under demographic stochasticity [PDF]

open access: yes, 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

Digging the pupfish out of its hole: risk analyses to guide harvest of Devils Hole pupfish for captive breeding. [PDF]

open access: yes, 2014
The Devils Hole pupfish is restricted to one wild population in a single aquifer-fed thermal pool in the Desert National Wildlife Refuge Complex. Since 1995 the pupfish has been in a nearly steady decline, where it was perched on the brink of extinction ...
Beissinger, Steven
core   +4 more sources

Multispecies approaches to status assessments in support of endangered species classifications

open access: yesConservation 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 risk by mutational meltdown [PDF]

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

Conservation genetics – science in the service of nature

open access: yesActa Biologica, 2020
Conservation genetics is a subdicipline of conservation biology which deals with the extinction risk and many other problems of nature conservation by using genetic tools and techniques.
Cansel Taşkın, Jakub Skorupski
doaj   +1 more source

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