Assessing the consistency of hotspot and hot-moment patterns of wildlife road mortality over time | Zendy

Rodrigo Augusto Lima Santos | Zendy; Fernando Ascensão | Zendy; Marina Lopes Ribeiro | Zendy; Alex Bager | Zendy; Margarida SantosReis | Zendy; Ludmilla Aguiar | Zendy

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Assessing the consistency of hotspot and hot-moment patterns of wildlife road mortality over time

Author(s) -

Rodrigo Augusto Lima Santos,

Fernando Ascensão,

Marina Lopes Ribeiro,

Alex Bager,

Margarida SantosReis,

Ludmilla Aguiar

Publication year - 2017

Publication title -

perspectives in ecology and conservation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.607

H-Index - 31

ISSN - 2530-0644

DOI - 10.1016/j.pecon.2017.03.003

Subject(s) - hotspot (geology) , wildlife , temporal scales , spatial ecology , geography , consistency (knowledge bases) , environmental science , cartography , ecology , environmental resource management , physical geography , computer science , biology , geology , artificial intelligence , geophysics

Spatial and temporal aggregation patterns of wildlife-vehicle collisions are recurrently used to informwhere and when mitigation measures are most needed. The aim of this study is to assess if such aggre-gation patterns remain in the same locations and periods over time and at different spatial and temporalscales. We conducted biweekly surveys (n = 484) on 114 km of nine roads, searching for road casualties(n = 4422). Aggregations were searched using different lengths of road sections (500, 1000, 2000 m) andtime periods (fortnightly, monthly, bimonthly). Our results showed that hotspots and hot-moments aregenerally more consistent at larger temporal and spatial scales. We therefore suggest using longer roadsections and longer time periods to implement mitigation measures in order to minimize the uncer-tainty. We support this finding by showing that the proportional costs and benefits to mitigate roadkillaggregations are similar when using different spatial and temporal units

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