To quantify the patterns of reduced population densities in relation to infrastructural development by conducting a meta-analysis of infrastructure–distance effect for birds and mammals
Type of Study:
Mammal and bird population densities declined with their proximity to infrastructure. The effect of infrastructure on bird populations extended over distances up to about 1 km, and for mammal populations up to about 5 km. Mammals and birds seemed to avoid infrastructure in open areas over larger distances compared to forested areas, which could be related to the reduced visibility of the infrastructure in forested areas.
Infrastructure distance and habitat
Minimize infrastructure development for wildlife conservation in relatively undisturbed areas.
GLMM and AICc model selection
Many of the results from this paper are used in Raiter et al 2017's investigation on hypothetical edge effect zones.
global - some geographical bias was found since most of the studies were from either North America (21) or Europe (23), while a few studies from Africa (3) and Oceania (2) were found.
Response variable :
Species abundance (density and/or counts) at varying distances to infrastructure.
56 datasets of varying sizes
Benítez-López A., Alkemade R. & Verweij P. A. (2010) The impacts of roads and other infrastructure on mammal and bird populations: a meta-analysis. Biological Conservation 143, 1307-16.