scholarly journals Ecological correlates of extinction risk in Chinese terrestrial mammals

2021 ◽  
Author(s):  
Lingying Shuai ◽  
Chuanwu Chen ◽  
Wei Liu ◽  
Wenyan Xu ◽  
Yun Wang ◽  
...  
Keyword(s):  
Extinction Risk ◽  
Terrestrial Mammals ◽  
Ecological Correlates

scholarly journals Areal sizes of high, intermediate, low and total suitable habitats are correlated to the global extinction risk for mammals

2014 ◽  
Vol 66 (3) ◽  
pp. 963-967
Author(s):  
You-Hua Chen
Keyword(s):  
Risk Assessment ◽  
Extinction Risk ◽  
Species Conservation ◽  
Species Extinction ◽  
Terrestrial Mammals ◽  
Global Extinction ◽  
Extinction Risk Assessment ◽  
Suitable Habitats ◽  
Threatened Status ◽  
Polyserial Correlation

The relationships between areal sizes of high, intermediate, low, and total sum of habitats with low, intermediate and high suitability habitat ranges, and the International Union for Conservation of Nature (IUCN) threatened status of global terrestrial mammals were studied. Polyserial correlation analysis showed that all types of areal size closely and positively correlated with IUCN categories of threatened species. The results indicate that area-based extinction risk assessment is feasible and reliable in species? conservation prioritization. Furthermore, the partial polyserial correlation test indicates that significant correlations between the IUCN threatened status of species and range sizes of high, intermediate and low suitability habitats are not influenced by the polyserial correlation between IUCN threatened status and total suitability habitat range size. Thus, the prediction of species? extinction risks can be accurately fulfilled by evaluating the areal size of any one of total, high, intermediate or low suitability ranges. The present study implies that if the area size information of a totally suitable range is not available for species? extinction risk assessment, the usage of areal sizes from any parts of suitable habitats (high, intermediate or low) are effective surrogates.

scholarly journals Ecological correlates of extinction risk in Chinese birds

Ecography ◽  
2017 ◽  
Vol 41 (5) ◽  
pp. 782-794 ◽  
Author(s):  
Yanping Wang ◽  
Xingfeng Si ◽  
Peter M. Bennett ◽  
Chuanwu Chen ◽  
Di Zeng ◽  
...  
Keyword(s):  
Extinction Risk ◽  
Ecological Correlates

scholarly journals Quantification of habitat fragmentation reveals extinction risk in terrestrial mammals

2017 ◽  
Vol 114 (29) ◽  
pp. 7635-7640 ◽  
Author(s):  
Kevin R. Crooks ◽  
Christopher L. Burdett ◽  
David M. Theobald ◽  
Sarah R. B. King ◽  
Moreno Di Marco ◽  
...  
Keyword(s):  
Habitat Fragmentation ◽  
Extinction Risk ◽  
Threat Assessment ◽  
Risk Assessments ◽  
Phylogenetic Comparative Methods ◽  
Terrestrial Mammals ◽  
Geographic Range Size ◽  
Mammal Conservation ◽  
Primary Driver ◽  
Animal Taxon

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. We developed high-resolution habitat fragmentation models and used phylogenetic comparative methods to quantify the effects of habitat fragmentation on the world’s terrestrial mammals, including 4,018 species across 26 taxonomic Orders. Results demonstrate that species with more fragmentation are at greater risk of extinction, even after accounting for the effects of key macroecological predictors, such as body size and geographic range size. Species with higher fragmentation had smaller ranges and a lower proportion of high-suitability habitat within their range, and most high-suitability habitat occurred outside of protected areas, further elevating extinction risk. Our models provide a quantitative evaluation of extinction risk assessments for species, allow for identification of emerging threats in species not classified as threatened, and provide maps of global hotspots of fragmentation for the world’s terrestrial mammals. Quantification of habitat fragmentation will help guide threat assessment and strategic priorities for global mammal conservation.

scholarly journals Matrix condition mitigates the effects of habitat fragmentation on species extinction risk

2021 ◽  
Author(s):  
Juan Ramírez-Delgado ◽  
Moreno Di Marco ◽  
James Watson ◽  
Chris Johnson ◽  
Carlo Rondinini ◽  
...  
Keyword(s):  
Habitat Loss ◽  
Extinction Risk ◽  
Conservation Action ◽  
Species Extinction ◽  
Habitat Amount ◽  
Influence Matrix ◽  
Terrestrial Mammals ◽  
Human Footprint ◽  
The Matrix ◽  
Matrix Condition

Abstract Habitat loss is the leading cause of global biodiversity decline, but the influence of human pressure within the matrix surrounding habitat fragments remains poorly understood. Here we measure the relationship between fragmentation, matrix condition (measured as the extent of high human footprint levels), and the change in extinction risk of 4,327 terrestrial mammals. We find that the matrix condition and the fragmentation of habitat are strongly associated with changes in species extinction risk. Importantly, we discover that fragmentation is a stronger predictor of risk than species life-history traits, habitat loss, and habitat amount. Moreover, the importance of fragmentation increases with an increasing deterioration of the matrix condition, highlighting the critical influence matrix quality plays on the effects of fragmentation. These findings suggest that restoration measures in habitat matrices may be an important conservation action for mitigating the effects of fragmentation relative to extinction risk of terrestrial mammals.

scholarly journals Targeted expansion of Protected Areas to maximise the persistence of terrestrial mammals

2019 ◽  
Author(s):  
Sarah Mogg ◽  
Constance Fastre ◽  
Martin Jung ◽  
Piero Visconti
Keyword(s):  
Land Surface ◽  
Extinction Risk ◽  
Iucn Red List ◽  
Red List ◽  
Ecological Impacts ◽  
Conservation Priorities ◽  
Area Network ◽  
Conservation Area ◽  
Terrestrial Mammals ◽  
Iucn Red List Criteria

ABSTRACTOver a quarter of species assessed by the IUCN Red List are threatened with extinction. A global commitment to protect 17% of land and 10% of the oceans by 2020 is close to being achieved, but with limited ecological impacts due to its inadequacy and poor enforcement. Here, we reverse-engineer IUCN Red List criteria to generate area-based conservation targets and spatial conservation priorities to minimize the extinction risk of the world terrestrial mammals. We find that approximately 60% of the Earth’s non-Antarctic land surface would require some form of protection. Our results suggest that global conservation priority schemes, among which the Aichi targets, will be inadequate to secure the persistence of terrestrial mammals. To achieve this goal, international cooperation is required to implement a connected and comprehensive conservation area network, guided by high priority regions outlined in this study.

scholarly journals Ecological correlates of extinction risk in Chinese amphibians

2019 ◽  
Vol 25 (10) ◽  
pp. 1586-1598 ◽  
Author(s):  
Chuanwu Chen ◽  
Cangsong Chen ◽  
Yanping Wang
Keyword(s):  
Extinction Risk ◽  
Ecological Correlates

scholarly journals Phylogenetic correlates of extinction risk in mammals: species in older lineages are not at greater risk

2013 ◽  
Vol 280 (1765) ◽  
pp. 20131092 ◽  
Author(s):  
Luis Darcy Verde Arregoitia ◽  
Simon P. Blomberg ◽  
Diana O. Fisher
Keyword(s):  
Extinction Risk ◽  
Conservation Priorities ◽  
Diversification Rates ◽  
Terrestrial Mammals ◽  
Significant Relationships ◽  
Evolutionary Distinctiveness ◽  
Close Relatives ◽  
Taxonomic Groups ◽  
Regional Associations ◽  
The Relationship

Phylogenetic information is becoming a recognized basis for evaluating conservation priorities, but associations between extinction risk and properties of a phylogeny such as diversification rates and phylogenetic lineage ages remain unclear. Limited taxon-specific analyses suggest that species in older lineages are at greater risk. We calculate quantitative properties of the mammalian phylogeny and model extinction risk as an ordinal index based on International Union for Conservation of Nature Red List categories. We test for associations between lineage age, clade size, evolutionary distinctiveness and extinction risk for 3308 species of terrestrial mammals. We show no significant global or regional associations, and three significant relationships within taxonomic groups. Extinction risk increases for evolutionarily distinctive primates and decreases with lineage age when lemurs are excluded. Lagomorph species (rabbits, hares and pikas) that have more close relatives are less threatened. We examine the relationship between net diversification rates and extinction risk for 173 genera and find no pattern. We conclude that despite being under-represented in the frequency distribution of lineage ages, species in older, slower evolving and distinct lineages are not more threatened or extinction-prone. Their extinction, however, would represent a disproportionate loss of unique evolutionary history.

scholarly journals Bushmeat hunting and extinction risk to the world's mammals

2016 ◽  
Vol 3 (10) ◽  
pp. 160498 ◽  
Author(s):  
William J. Ripple ◽  
Katharine Abernethy ◽  
Matthew G. Betts ◽  
Guillaume Chapron ◽  
Rodolfo Dirzo ◽  
...  
Keyword(s):  
Extinction Risk ◽  
Conservation Strategy ◽  
Medicinal Products ◽  
Mammal Species ◽  
Terrestrial Mammal ◽  
Terrestrial Mammals ◽  
The World ◽  
Population Sizes ◽  
Effective Conservation ◽  
Bushmeat Hunting

Terrestrial mammals are experiencing a massive collapse in their population sizes and geographical ranges around the world, but many of the drivers, patterns and consequences of this decline remain poorly understood. Here we provide an analysis showing that bushmeat hunting for mostly food and medicinal products is driving a global crisis whereby 301 terrestrial mammal species are threatened with extinction. Nearly all of these threatened species occur in developing countries where major coexisting threats include deforestation, agricultural expansion, human encroachment and competition with livestock. The unrelenting decline of mammals suggests many vital ecological and socio-economic services that these species provide will be lost, potentially changing ecosystems irrevocably. We discuss options and current obstacles to achieving effective conservation, alongside consequences of failure to stem such anthropogenic mammalian extirpation. We propose a multi-pronged conservation strategy to help save threatened mammals from immediate extinction and avoid a collapse of food security for hundreds of millions of people.

Body Size and Extinction Risk in Terrestrial Mammals Above the Species Level

2013 ◽  
Vol 182 (6) ◽  
pp. E196-E214 ◽  
Author(s):  
Susumu Tomiya
Keyword(s):  
Body Size ◽  
Extinction Risk ◽  
Species Level ◽  
Terrestrial Mammals
Sign in / Sign up

Export Citation Format

Share Document