Balancing biodiversity with agriculture: Land sharing mitigates avian malaria prevalence

Conservation Letters

Chase D. Mendenhall⁴  Holly M. Archer²  Federico Oviedo Brenes¹  Cagan H. Sekercioglu³ 

[1] Organization for Tropical Studies, Las Cruces Biological Station, Apartado 78-8257, San Vito, Coto Brus, Costa Rica, USA;Department of Biology, San Francisco State University, San Francisco, CA 94132, USA;Department of Biology, University of Utah, Salt Lake City, UT 84112, USA;Center for Conservation Biology, Stanford University, Stanford, CA 94305, USA

关键词: Agronomy;    conservation biology;    countryside biogeography;    Las Cruces Biological Station;    parasitology;    Plasmodium;    Orange‐billed Nightingale‐Thrush;   

DOI  :  10.1111/j.1755-263X.2012.00302.x

来源: Wiley

【 摘 要 】

Abstract

Debate over balancing agricultural production and biodiversity conservation has generated two opposing strategies: a “land sparing” approach involving large-scale nature reserves, versus a “land sharing” approach where agricultural areas support wildlife through fine-scale conservation. As a result of this debate, studies focus almost exclusively on species diversity and food production, while ignoring other critical ecosystem processes such as disease dynamics. Here we quantify how tropical avian malaria in an abundant sedentary bird species responds at fine spatial scales in a “land sharing” system. We find the proportion and configuration of countryside forest elements within a radius of 400 m, proximity to the nearest river, and habitat type explains malaria prevalence across the region. We simulate “land sparing” and “land sharing” land use strategies and model malaria prevalence to find that land sharing mitigates malaria prevalence more effectively. With these analyses, we gain a better understanding of how biodiversity, ecosystem services, agricultural yield, and human well-being intersect in complex ecosystems.

【 授权许可】

Unknown   
©2012 Wiley Periodicals, Inc.