A distribution-oriented approach to support landscape connectivity for ecologically distinct bird species

被引:11
作者
Herrera, Jose M. [1 ,2 ]
Alagador, Diogo [1 ]
Salgueiro, Pedro [1 ]
Mira, Antonio [1 ]
机构
[1] Univ Evora, CIBIO, Ctr Invest Biodiversidade & Recursos Genet, InBIO, Dom Augusto Eduardo Nunes 7, Evora, Portugal
[2] CSIC, Dept Ecol Integrat, EBD, Avd Amer Vespucio 26, Seville, Spain
来源
PLOS ONE | 2018年 / 13卷 / 04期
关键词
FUNCTIONAL CONNECTIVITY; PLANTATION FORESTS; FRAGMENTATION; CONSERVATION; HABITATS; ECOLOGY; DISPERSAL; REGION; MODEL;
D O I
10.1371/journal.pone.0194848
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Managing landscape connectivity is a widely recognized overarching strategy for conserving biodiversity in human-impacted landscapes. However, planning the conservation and management of landscape connectivity of multiple and ecologically distinct species is still challenging. Here we provide a spatially-explicit framework which identifies and prioritizes connectivity conservation and restoration actions for species with distinct habitat affinities. Specifically, our study system comprised three groups of common bird species, forest-specialists, farmland-specialists, and generalists, populating a highly heterogeneous agricultural countryside in the southwestern Iberian Peninsula. We first performed a comprehensive analysis of the environmental variables underlying the distributional patterns of each bird species to reveal generalities in their guild-specific responses to landscape structure. Then, we identified sites which could be considered pivotal in maintaining current levels of landscape connectivity for the three bird guilds simultaneously, as well as the number and location of sites that need to be restored to maximize connectivity levels. Interestingly, we found that a small number of sites defined the shortest connectivity paths for the three bird guilds simultaneously, and were therefore considered key for conservation. Moreover, an even smaller number of sites were identified as critical to expand the landscape connectivity at maximum for the regional bird assemblage as a whole. Our spatially-explicit framework can provide valuable decision-making support to conservation practitioners aiming to identify key connectivity and restoration sites, a particularly urgent task in rapidly changing landscapes such as agroecosystems.
引用
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页数:15
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