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Beware that the lack of wildlife mortality records can mask a serious impact of linear infrastructures
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Orientador(es)
Resumo(s)
Linear infrastructures (e.g. roads, railways or power lines) promote a myriad of negative
impacts on wildlife around the world, of which direct mortality is the most visible one.
When high mortality rates are found, mitigation measures are often discussed and applied.
On the other hand, the lack of mortality is commonly interpreted as evidence of low
impact on wildlife. We argue that the lack of mortality may actually mask two pervasive
effects of linear infrastructures on animal populations: past massive mortality, causing
local extinctions, or strong barrier effects due to the inability or reluctance of individuals to
traverse the infrastructure corridor. In order to obtain a sound impact assessment of the
linear infrastructures on wildlife, research is needed that integrates long-term mortality
data with information on the abundance of the focal species, their genetic patterns and
movement behavior. We discuss the implications of these impacts for both infrastructures
and landscape management
Descrição
Short Communication
Palavras-chave
barrier effect fences population deplection power lines railways roadkill roads transportation networks
Contexto Educativo
Citação
Global Ecology and Conservation 19 (2019) e00661
Editora
Elsevier