NDLI: Extinction trends of threatened invertebrates in peninsular Spain

Content Provider	Springer Nature Link
Author	Hernández Manrique, Olga Lucía Sanchez Fernandez, David Numa, Catherine Galante, Eduardo Verdú, José R. Lobo, Jorge M.
Copyright Year	2012
Abstract	Using information from two recently published atlases of threatened invertebrate species in peninsular Spain, we examined the climatic, land use and geographic characteristics of the 100 km$^{2}$ UTM cells with most likelihood of suffering extinctions (extinction cells), as well as the attributes of the species prone to population extinctions. Extinction cells have had significantly (1) lower precipitation values, (2) higher temperatures, (3) higher percentages of anthropic land uses or (4) higher rates of anthropization during the last 20 years than the remaining cells. Nevertheless, probable extinctions may occur under a wide range of climatic and anthropization change rates and these variables can only explain a low proportion (~5 %) of variability in the occurrence or number of extinction cells. Aquatic species seem to suffer higher local extinction rates than terrestrial species. Interestingly, many invertebrate species with approximately 25 or less occurrence cells are on a clear trajectory towards extinction. These results outline the difficulties and uncertainties in relating probable population extinctions with climatic and land use changes in the case of invertebrate data. However, they also suggest that a third of the considered Spanish threatened species could have lost some of their populations, and that current conservation efforts are insufficient to reverse this tendency.
Starting Page	235
Ending Page	244
Page Count	10
File Format	PDF
ISSN	1366638X
Journal	Journal of Insect Conservation
Volume Number	17
Issue Number	2
e-ISSN	15729753
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-05-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Extinction Threatened species Arthropods Molluscs Species decline Spain Entomology Conservation Biology/Ecology Biodiversity Animal Ecology Life Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Animal Science and Zoology Nature and Landscape Conservation Insect Science

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