bird communities in sun and shade coffee farms in kenya

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ID: 190926
2015
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Abstract
Agricultural expansion to meet rising crop demand is one of the greatest threats to terrestrial biodiversity. Coffee, one of the most valuable trade items in tropical countries, can provide both economic livelihood and wildlife habitat. Previous work, conducted primarily on Neotropical coffee farms, indicates that birds are generally more abundant and diverse in farms with a canopy of shade trees, though regional variation exists. To date, few studies have examined birds on coffee farms in Africa, which contains 20% of the world’s coffee acreage. We studied differences in the bird communities between sun and shade monoculture coffee in central Kenya, and we examined effects of vegetation on bird abundance and diversity. Sun coffee had higher species richness and abundances of all major guilds (omnivores, insectivores, and granivores), and showed low community similarity to shade. Unlike findings from the Neotropics, canopy cover appeared to have a negative influence on all guilds, while understory volume of weeds increased bird abundance and species richness with a similar magnitude as canopy cover. These differences highlight the need for further studies in the general East Africa region with a wider variety of shade coffee systems.
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smith2015globalbird Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;C. Smith;D. Barton;M.D. Johnson;C. Wendt;M.C. Milligan;P. Njoroge;P. Gichuki
Journal Environment international
Year 2015
DOI
10.1016/j.gecco.2015.09.004
URL
http://www.sciencedirect.com/science/article/pii/S2351989415000980
Keywords
diversity kenya coffee guildecology

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