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Major declines in the abundance of vultures and other scavenging raptors in and around the Masai Mara ecosystem, Kenya

Author(s): Munir Z. Virani , Corinne Kendall , Peter Njoroge , Simon Thomsett

Publication date Created: February 2011

Publication date (Print): February 2011

Journal: Biological Conservation

Publisher: Elsevier BV

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Most cited references 53

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Ecosystem consequences of bird declines.

Çağan H. Şekercioğlu, Gretchen C Daily, Paul Ehrlich (2004)

We present a general framework for characterizing the ecological and societal consequences of biodiversity loss and applying it to the global avifauna. To investigate the potential ecological consequences of avian declines, we developed comprehensive databases of the status and functional roles of birds and a stochastic model for forecasting change. Overall, 21% of bird species are currently extinction-prone and 6.5% are functionally extinct, contributing negligibly to ecosystem processes. We show that a quarter or more of frugivorous and omnivorous species and one-third or more of herbivorous, piscivorous, and scavenger species are extinction-prone. Furthermore, our projections indicate that by 2100, 6-14% of all bird species will be extinct, and 7-25% (28-56% on oceanic islands) will be functionally extinct. Important ecosystem processes, particularly decomposition, pollination, and seed dispersal, will likely decline as a result.

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Assessing Extinction Threats: Toward a Reevaluation of IUCN Threatened Species Categories

Georgina Mace, Russell Lande (1991)

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Counting the cost of vulture decline—An appraisal of the human health and other benefits of vultures in India

Anil Markandya, Tim Taylor, Alberto Longo … (2008)

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Author and article information

Journal

Title: Biological Conservation

Abbreviated Title: Biological Conservation

Publisher: Elsevier BV

ISSN (Print): 00063207

Publication date Created: February 2011

Publication date (Print): February 2011

Volume: 144

Issue: 2

Pages: 746-752

Article

DOI: 10.1016/j.biocon.2010.10.024

SO-VID: 03b537dd-440f-4130-8889-90a361e634b3

Copyright © © 2011

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http://www.elsevier.com/tdm/userlicense/1.0/

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