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Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads

The majority of Africa's parks and conservation areas have a vast road network, facilitating motorized vehicle game viewing. These roads have an influence that is both road type‐ and species‐specific, on the surrounding ecosystem. Due to their higher traffic volumes, we hypothesized that tar ro...

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Autores principales: Malherbe, Misha, McIntyre, Trevor, Hattingh, Tarryn V., Leresche, Paige M., Haussmann, Natalie S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8601909/
https://www.ncbi.nlm.nih.gov/pubmed/34824778
http://dx.doi.org/10.1002/ece3.8190
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author Malherbe, Misha
McIntyre, Trevor
Hattingh, Tarryn V.
Leresche, Paige M.
Haussmann, Natalie S.
author_facet Malherbe, Misha
McIntyre, Trevor
Hattingh, Tarryn V.
Leresche, Paige M.
Haussmann, Natalie S.
author_sort Malherbe, Misha
collection PubMed
description The majority of Africa's parks and conservation areas have a vast road network, facilitating motorized vehicle game viewing. These roads have an influence that is both road type‐ and species‐specific, on the surrounding ecosystem. Due to their higher traffic volumes, we hypothesized that tar roads and their immediate surrounds within the Kruger National Park, South Africa, are avoided to a greater extent by medium‐to‐large mammals than comparable dirt roads in the park. We systematically recorded the presence of medium‐to‐large mammal species from our vehicle, recording data at 401 tar and 369 dirt road stops in the Kruger National Park. In addition to species presence, we also estimated the proximity of animals to the road, as well as herd sizes. Our results indicate an equal likelihood of viewing the commonly recorded medium‐to‐large mammal species from both road types. The likelihood of observing larger herd sizes was also similar between tar and dirt roads for the three most commonly observed species, African elephant (Loxodonta africana), impala (Aepyceros melampus), and plains zebra (Equus quagga), and the likelihood of viewing impala and zebra close to the road also did not differ between tar and dirt roads. However, elephant was observed more often close to tar roads, compared to dirt roads. We interpreted this as the result of potentially increased woody cover associated with more water runoff in close proximity to tar roads compared with dirt roads. Our results not only have ecological significance, supporting the notion that many of the park's species are habituated to human infrastructure, but also management implications, informing park officials about the influence of road traffic and road type on wildlife distributions.
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spelling pubmed-86019092021-11-24 Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads Malherbe, Misha McIntyre, Trevor Hattingh, Tarryn V. Leresche, Paige M. Haussmann, Natalie S. Ecol Evol Research Articles The majority of Africa's parks and conservation areas have a vast road network, facilitating motorized vehicle game viewing. These roads have an influence that is both road type‐ and species‐specific, on the surrounding ecosystem. Due to their higher traffic volumes, we hypothesized that tar roads and their immediate surrounds within the Kruger National Park, South Africa, are avoided to a greater extent by medium‐to‐large mammals than comparable dirt roads in the park. We systematically recorded the presence of medium‐to‐large mammal species from our vehicle, recording data at 401 tar and 369 dirt road stops in the Kruger National Park. In addition to species presence, we also estimated the proximity of animals to the road, as well as herd sizes. Our results indicate an equal likelihood of viewing the commonly recorded medium‐to‐large mammal species from both road types. The likelihood of observing larger herd sizes was also similar between tar and dirt roads for the three most commonly observed species, African elephant (Loxodonta africana), impala (Aepyceros melampus), and plains zebra (Equus quagga), and the likelihood of viewing impala and zebra close to the road also did not differ between tar and dirt roads. However, elephant was observed more often close to tar roads, compared to dirt roads. We interpreted this as the result of potentially increased woody cover associated with more water runoff in close proximity to tar roads compared with dirt roads. Our results not only have ecological significance, supporting the notion that many of the park's species are habituated to human infrastructure, but also management implications, informing park officials about the influence of road traffic and road type on wildlife distributions. John Wiley and Sons Inc. 2021-10-26 /pmc/articles/PMC8601909/ /pubmed/34824778 http://dx.doi.org/10.1002/ece3.8190 Text en © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Malherbe, Misha
McIntyre, Trevor
Hattingh, Tarryn V.
Leresche, Paige M.
Haussmann, Natalie S.
Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title_full Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title_fullStr Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title_full_unstemmed Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title_short Mammal road‐type associations in Kruger National Park, South Africa: Common mammals do not avoid tar roads more than dirt roads
title_sort mammal road‐type associations in kruger national park, south africa: common mammals do not avoid tar roads more than dirt roads
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8601909/
https://www.ncbi.nlm.nih.gov/pubmed/34824778
http://dx.doi.org/10.1002/ece3.8190
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