C. Thomas

Publications337
h-index96
Citations42,988
Highly Influential Citations2,001
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Extinction risk from climate change
Climate change over the past ∼30 years has produced numerous shifts in the distributions and abundances of species and has been implicated in one species-level extinction. Using projections of… Expand
Rapid Range Shifts of Species Associated with High Levels of Climate Warming
A meta-analysis shows that species are shifting their distributions in response to climate change at an accelerating rate. The distributions of many terrestrial organisms are currently shifting in… Expand
Parallel Declines in Pollinators and Insect-Pollinated Plants in Britain and the Netherlands
Despite widespread concern about declines in pollination services, little is known about the patterns of change in most pollinator assemblages. By studying bee and hoverfly assemblages in Britain and… Expand
Poleward shifts in geographical ranges of butterfly species associated with regional warming
Mean global temperatures have risen this century, and further warming is predicted to continue for the next 50–100 years. Some migratory species can respond rapidly to yearly climate variation by… Expand
The distributions of a wide range of taxonomic groups are expanding polewards
Evidence is accumulating of shifts in species' distributions during recent climate warming. However, most of this information comes predominantly from studies of a relatively small selection of taxa… Expand
Rapid responses of British butterflies to opposing forces of climate and habitat change
Habitat degradation and climate change are thought to be altering the distributions and abundances of animals and plants throughout the world, but their combined impacts have not been assessed for… Expand
Birds extend their ranges northwards
We have analysed the breeding distributions of British birds over a 20-year period. After controlling for overall population expansions and retractions, we find that the northern margins of many… Expand
Prioritizing multiple-use landscapes for conservation: methods for large multi-species planning problems
Across large parts of the world, wildlife has to coexist with human activity in highly modified and fragmented landscapes. Combining concepts from population viability analysis and spatial reserve… Expand
Ecological and evolutionary processes at expanding range margins
Many animals are regarded as relatively sedentary and specialized in marginal parts of their geographical distributions. They are expected to be slow at colonizing new habitats. Despite this, the… Expand
Responses of butterflies to twentieth century climate warming: implications for future ranges
We analyse distribution records for 51 British butterfly species to investigate altitudinal and latitudinal responses to twentieth century climate warming. Species with northern and/or montane… Expand
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