An effect of canopy bridges on monkey‐vehicle collision hotspots: Spatial and spatiotemporal analyses DOI
Pamela M. K. Cunneyworth, Richard Andrášik, Michal Bíl

et al.

American Journal of Primatology, Journal Year: 2023, Volume and Issue: 85(6)

Published: April 13, 2023

Abstract Almost one‐quarter of primate species are reported to be involved in vehicle collisions. To mitigate these collisions, canopy bridges used though their effectiveness is not broadly substantiated. We studied bridge impact on 23 years collisions (2000–2022: N = 765) with colobus ( Colobus angolensis palliatus ), Sykes' Cercopithecus mitis albogularis and vervet Chlorocebus pygerythrus hilgerti ) monkeys Diani, Kenya. Along a 9 km road, did decrease over the study duration, although increased from 8 30. Using kernel density estimation plus (KDE+) method, appeared highly concentrated at some locations. These concentrations, called hotspots, represent hazardous road segments, hotspots for all three overlapped only 3% length. then inspected collision time, using spatiotemporal extension KDE+ method. compared hotspot presence 3 before after installation determine if mitigated hotspots. Hotspots disappeared ~60% postinstallation, suggesting that effectively reduce However, installed locations were 13% had emerge. Surprisingly, regardless preinstallation occurrence, almost one‐fifth postinstallation understand extent which other factors need consideration, including attributes crossing behavior, features volume. novel analytical method because it best suited our data set, given challenges determining zone low frequency.

Language: Английский

Guia de boas práticas para avaliação de efetividade de medidas de mitigação dos impactos sobre a fauna em rodovias DOI Creative Commons
Larissa Oliveira Gonçalves, Thales Andrés Carra, Fernanda Delborgo Abra

et al.

Published: Aug. 24, 2023

Este documento apresenta orientações para a avaliação de efetividade medidas mitigação redução colisões entre veículos e fauna manutenção recuperação da conectividade paisagem em rodovias. Ele foi baseado manuais internacionais, fóruns discussão multisetoriais na literatura científi ca área Ecologia Rodovias. Além das apresentadas, esse guia traz exemplos recomendações cada item orientativo o contexto rodovias operação. Ainda não há, no Brasil, um boas práticas que possa auxiliar planejamento desse tipo Esse elaborado como parte projeto pós-doutorado, fi nanciado pelo Programa USP Sustentabilidade Superintendência Gestão Ambiental Universidade São Paulo. teve colaboração técnicos Companhia do Estado Paulo tem objetivo servir subsídio elaboração planos

Citations

4
An effect of canopy bridges on monkey‐vehicle collision hotspots: Spatial and spatiotemporal analyses DOI
Pamela M. K. Cunneyworth, Richard Andrášik, Michal Bíl

et al.

American Journal of Primatology, Journal Year: 2023, Volume and Issue: 85(6)

Published: April 13, 2023

Abstract Almost one‐quarter of primate species are reported to be involved in vehicle collisions. To mitigate these collisions, canopy bridges used though their effectiveness is not broadly substantiated. We studied bridge impact on 23 years collisions (2000–2022: N = 765) with colobus ( Colobus angolensis palliatus ), Sykes' Cercopithecus mitis albogularis and vervet Chlorocebus pygerythrus hilgerti ) monkeys Diani, Kenya. Along a 9 km road, did decrease over the study duration, although increased from 8 30. Using kernel density estimation plus (KDE+) method, appeared highly concentrated at some locations. These concentrations, called hotspots, represent hazardous road segments, hotspots for all three overlapped only 3% length. then inspected collision time, using spatiotemporal extension KDE+ method. compared hotspot presence 3 before after installation determine if mitigated hotspots. Hotspots disappeared ~60% postinstallation, suggesting that effectively reduce However, installed locations were 13% had emerge. Surprisingly, regardless preinstallation occurrence, almost one‐fifth postinstallation understand extent which other factors need consideration, including attributes crossing behavior, features volume. novel analytical method because it best suited our data set, given challenges determining zone low frequency.

Language: Английский

Citations

1