Publication Date:
2014-07-26
Description:
We live amid a global wave of anthropogenically driven biodiversity loss: species and population extirpations and, critically, declines in local species abundance. Particularly, human impacts on animal biodiversity are an under-recognized form of global environmental change. Among terrestrial vertebrates, 322 species have become extinct since 1500, and populations of the remaining species show 25% average decline in abundance. Invertebrate patterns are equally dire: 67% of monitored populations show 45% mean abundance decline. Such animal declines will cascade onto ecosystem functioning and human well-being. Much remains unknown about this "Anthropocene defaunation"; these knowledge gaps hinder our capacity to predict and limit defaunation impacts. Clearly, however, defaunation is both a pervasive component of the planet's sixth mass extinction and also a major driver of global ecological change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dirzo, Rodolfo -- Young, Hillary S -- Galetti, Mauro -- Ceballos, Gerardo -- Isaac, Nick J B -- Collen, Ben -- New York, N.Y. -- Science. 2014 Jul 25;345(6195):401-6. doi: 10.1126/science.1251817.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Stanford University, Stanford, CA 94305, USA. rdirzo@stanford.edu. ; Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA. ; Departamento de Ecologia, Universidade Estadual Paulista, Rio Claro, SP, 13506-900, Brazil. ; Instituto de Ecologia, Universidad Nacional Autonoma de Mexico, AP 70-275, Mexico D.F. 04510, Mexico. ; Natural Environment Research Council (NERC) Centre for Ecology and Hydrology, Benson Lane, Crowmarsh Gifford, Oxfordshire, OX10 8BB, UK. ; Centre for Biodiversity and Environment Research, Department of Genetics, Evolution and Environment, University College London, Gower Street, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25061202" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
*Biodiversity
;
Birds
;
*Endangered Species
;
*Extinction, Biological
;
*Human Activities
;
Humans
;
Insects
;
Invertebrates
;
Mammals
;
Pest Control
;
Pollination
;
Population
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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