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Urban Matrices Threaten Patch Occurrence of Howler Monkeys in Anthropogenic Landscapes

Author

Listed:
  • Carmen Galán-Acedo

    (Geomatics and Landscape Ecology Laboratory, Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada)

  • Gabriela Pacheco Hass

    (Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Av. Ipiranga, 6681 Pd. 12D, 4º andar, Porto Alegre 90619-900, RS, Brazil)

  • Vinícius Klain

    (Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Av. Ipiranga, 6681 Pd. 12D, 4º andar, Porto Alegre 90619-900, RS, Brazil)

  • Pedro Bencke

    (Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Av. Ipiranga, 6681 Pd. 12D, 4º andar, Porto Alegre 90619-900, RS, Brazil)

  • Júlio César Bicca-Marques

    (Laboratório de Primatologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Av. Ipiranga, 6681 Pd. 12D, 4º andar, Porto Alegre 90619-900, RS, Brazil)

Abstract

Habitat modification due to human activities threatens species survival. While some species can inhabit habitat patches in anthropogenic landscapes, their occurrence often depends on landscape structure. We assessed the effects of landscape structure on brown howler monkey ( Alouatta guariba clamitans ) occurrence in an urban scenario. We conducted censuses in 59 forest patches from 2014 to 2016 in Rio Grande do Sul State, Brazil. We evaluated patch occurrence (presence/absence) in response to landscape composition (forest cover, arboreal crops, urban areas, open areas, and water) and configuration (patch density), considering the scale of effect. Water, urban, and open areas were the most important predictors of howler presence. Their presence was notably higher in landscapes with more water, likely because these landscapes consist of rural areas with low urbanization, less farming, and relatively high forest cover. Presence of howlers was positively associated with forest cover and negatively related to urban areas, open areas, and arboreal crops. Resource scarcity and increased mortality risks from human pressures, such as domestic dog attacks, electrocution, and roadkill on these land covers may explain these relationships. We highlight the importance of conserving and increasing forest cover in anthropogenic landscapes to protect species reliant on forested habitats, like howler monkeys.

Suggested Citation

  • Carmen Galán-Acedo & Gabriela Pacheco Hass & Vinícius Klain & Pedro Bencke & Júlio César Bicca-Marques, 2024. "Urban Matrices Threaten Patch Occurrence of Howler Monkeys in Anthropogenic Landscapes," Land, MDPI, vol. 13(4), pages 1-13, April.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:4:p:514-:d:1375308
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    References listed on IDEAS

    as
    1. Lucas Goulart da Silva & Milton Cezar Ribeiro & Érica Hasui & Carla Aparecida da Costa & Rogério Grassetto Teixeira da Cunha, 2015. "Patch Size, Functional Isolation, Visibility and Matrix Permeability Influences Neotropical Primate Occurrence within Highly Fragmented Landscapes," PLOS ONE, Public Library of Science, vol. 10(2), pages 1-20, February.
    2. Juan Pablo Ramírez-Delgado & Moreno Di Marco & James E. M. Watson & Chris J. Johnson & Carlo Rondinini & Xavier Corredor Llano & Miguel Arias & Oscar Venter, 2022. "Matrix condition mediates the effects of habitat fragmentation on species extinction risk," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. Moreno Di Marco & Simon Ferrier & Tom D. Harwood & Andrew J. Hoskins & James E. M. Watson, 2019. "Wilderness areas halve the extinction risk of terrestrial biodiversity," Nature, Nature, vol. 573(7775), pages 582-585, September.
    Full references (including those not matched with items on IDEAS)

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