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Geoffrey M. While

Publications and source records attributed to Geoffrey M. While.

2 recordsLinked to original sources

Adaptive capacity of alpine fauna in Australia

Climate change is leading to rapid and unprecedented changes to Australia's alpine ecosystems. The impacts of these changes at a species level are not fully understood, making it challenging to holistically assess the impacts of a changing climate in these ecosystems. To address this gap, we combine a literature review with expert opinion to conduct individual adaptive capacity analyses for 29 species of Australia's alpine animals. We conduct these analyses using a published framework which encompasses key themes, such as life history, capacity for movement, genetic variation, and distribution. Our results highlight diversity in the adaptive capacity of Australia's alpine animals and suggest that climate change will impact even closely related species in surprisingly disparate ways. Our study also provides an example of how to overcome perceived data deficiency and support conservation practitioners with what is known. We have created an important resource for land managers in Australia's Alps that systematically integrates diverse data to provide insight into the mechanisms behind the vulnerability of some of Australia's most threatened species to climate change. The evidence this study collates should be considered in conservation planning to ensure species-level natural history information is included in decisions about management actions to mitigate climate change impacts.

Conservation Science and Practice↗

Conservation status of the world’s skinks (Scincidae): Taxonomic and geographic patterns in extinction risk

Our knowledge of the conservation status of reptiles, the most diverse group of terrestrial vertebrates, has improved dramatically over the past decade, but still lags behind that of the other tetrapod groups. Here, we conduct the first comprehensive assessment (~92% of the world’s ~1,714 described species) of the conservation status of skinks (Scincidae), the most speciose reptile family worldwide. Using IUCN criteria, we found that ~20% of species are threatened with extinction, and nine species are Extinct or Extinct in the Wild. The highest levels of threat are evident in Madagascar, and the Neotropics, and in the subfamilies Mabuyinae, Eugongylinae and Scincinae. The vast majority of threatened skink species were listed based primarily on their small geographic ranges (Criterion B, 83%; Criterion D2, 13%). Although the population trend of 42% of species were stable, 14% were found to have declining populations. The key threats to skinks are habitat loss due to agriculture, invasive species, and biological resource use. Distributions of 61% of species did not overlap with protected areas. Despite our improved knowledge of the conservation status of the world’s skinks, 8% of species remain to be assessed and 221 species (14%) are listed as Data Deficient. The conservation status of almost a quarter of the world’s skink species thus remains unknown. We use our updated knowledge of the conservation status of the group to develop and outline the priorities for the conservation assessment and management of the world’s skink species.

Biological Conservation↗