scholarly journals Multiple Causes of High Extinction Risk in Large Mammal Species

Science ◽  
2005 ◽  
Vol 309 (5738) ◽  
pp. 1239-1241 ◽  
Author(s):  
M. Cardillo
Keyword(s):  
Extinction Risk ◽  
Mammal Species ◽  
Large Mammal ◽  
Multiple Causes

scholarly journals Diversity lost: are all Holarctic large mammal species just relict populations?

2010 ◽  
Vol 9 (3) ◽  
pp. 24 ◽  
Author(s):  
Michael Hofreiter ◽  
Ian Barnes
Keyword(s):  
Mammal Species ◽  
Large Mammal ◽  
Relict Populations

scholarly journals Large mammal species richness and late Quaternary precipitation change in south-western Australia

2016 ◽  
Vol 32 (6) ◽  
pp. 760-769 ◽  
Author(s):  
J. Tyler Faith ◽  
Joe Dortch ◽  
Chelsea Jones ◽  
James Shulmeister ◽  
Kenny J. Travouillon
Keyword(s):  
Species Richness ◽  
Western Australia ◽  
Late Quaternary ◽  
Precipitation Change ◽  
Mammal Species ◽  
Large Mammal

The relative importance of large mammal species for tourism in Amboseli National Park, Kenya

2008 ◽  
Vol 29 (4) ◽  
pp. 751-760 ◽  
Author(s):  
Moses Makonjio Okello ◽  
Stephanie Grace Manka ◽  
Danielle E. D’Amour
Keyword(s):  
National Park ◽  
Relative Importance ◽  
Mammal Species ◽  
Large Mammal ◽  
Amboseli National Park

How tourism and pastoralism influence population demographic changes in a threatened large mammal species

2013 ◽  
Vol 17 (2) ◽  
pp. 115-124 ◽  
Author(s):  
N. Ménard ◽  
A. Foulquier ◽  
D. Vallet ◽  
M. Qarro ◽  
P. Le Gouar ◽  
...  
Keyword(s):  
Demographic Changes ◽  
Mammal Species ◽  
Large Mammal ◽  
Population Demographic

scholarly journals Modelling population persistence on islands: mammal introductions in the New Zealand archipelago

2006 ◽  
Vol 273 (1604) ◽  
pp. 2969-2975 ◽  
Author(s):  
Richard P Duncan ◽  
David M Forsyth
Keyword(s):  
New Zealand ◽  
Important Determinant ◽  
Extinction Risk ◽  
Population Persistence ◽  
Habitat Modification ◽  
Mammal Species ◽  
Stochastic Population Growth ◽  
Low Probability ◽  
Climatic Severity ◽  
The Relationship

Islands are likely to differ in their susceptibility to colonization or invasion due to variation in factors that affect population persistence, including island area, climatic severity and habitat modification. We tested the importance of these factors in explaining the persistence of 164 introductions of six mammal species to 85 islands in the New Zealand archipelago using survival analysis and model selection techniques. As predicted by the theory of stochastic population growth, extinction risk was the greatest in the period immediately following introduction, declining rapidly to low probability by ca 25 years. This suggests that initially small populations were at greatest risk of extinction and that populations which survived for 25 years were likely to persist subsequently for much longer. Islands in the New Zealand archipelago become colder and windier with increasing latitude, and the probability of mammal populations persisting on islands declined steeply with increasing latitude. Hence, our results suggest that climatic suitability was an important determinant of the outcome of these invasions. The form of the relationship between latitude and persistence probability differed among species, emphasizing that the outcome of colonization attempts is species-environment specific.

scholarly journals The changing fates of the world's mammals

2011 ◽  
Vol 366 (1578) ◽  
pp. 2598-2610 ◽  
Author(s):  
Michael Hoffmann ◽  
Jerrold L. Belant ◽  
Janice S. Chanson ◽  
Neil A. Cox ◽  
John Lamoreux ◽  
...  
Keyword(s):  
Captive Breeding ◽  
Extinction Risk ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Mammal Species ◽  
International Union ◽  
The Status ◽  
Conservation Actions ◽  
In The Wild

A recent complete assessment of the conservation status of 5487 mammal species demonstrated that at least one-fifth are at risk of extinction in the wild. We retrospectively identified genuine changes in extinction risk for mammals between 1996 and 2008 to calculate changes in the International Union for Conservation of Nature (IUCN) Red List Index (RLI). Species-level trends in the conservation status of mammalian diversity reveal that extinction risk in large-bodied species is increasing, and that the rate of deterioration has been most accelerated in the Indomalayan and Australasian realms. Expanding agriculture and hunting have been the main drivers of increased extinction risk in mammals. Site-based protection and management, legislation, and captive-breeding and reintroduction programmes have led to improvements in 24 species. We contextualize these changes, and explain why both deteriorations and improvements may be under-reported. Although this study highlights where conservation actions are leading to improvements, it fails to account for instances where conservation has prevented further deteriorations in the status of the world's mammals. The continued utility of the RLI is dependent on sustained investment to ensure repeated assessments of mammals over time and to facilitate future calculations of the RLI and measurement against global targets.

Performance of individual species as indicators for large mammal species richness in Northern Tanzania

2015 ◽  
Vol 53 ◽  
pp. 70-77 ◽  
Author(s):  
Christian Kiffner ◽  
Michael Albertini ◽  
Alena Ede ◽  
Brenna Donnellan ◽  
Nathan Hahn ◽  
...  
Keyword(s):  
Species Richness ◽  
Individual Species ◽  
Mammal Species ◽  
Large Mammal ◽  
Northern Tanzania
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