Forest cover influences occurrence of mammalian carnivores within Brazilian Atlantic Forest

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Regolin, Andre Luis ^{[1, 2]} ; Cherem, Jorge Jose ^[3] ; Graipel, Mauricio Eduardo ^{[4, 3]} ; Bogoni, Juliano Andre ^[5] ; Ribeiro, John Wesley ^[1] ; Vancine, Mauricio Humberto ^[1] ; Tortato, Marcos Adriano ^{[3, 6]} ; Oliveira-Santos, Luiz Gustavo ^[7] ; Fantacini, Felipe Moreli ^{[8, 9]} ; Luiz, Micheli Ribeiro ^[10] ; de Castilho, Pedro Volkmer ^[11] ; Ribeiro, Milton Cezar ^[1] ; Caceres, Nilton Carlos ^[12]

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^[1] Univ Estadual Paulista, Dept Ecol, Lab Ecol Espacial & Conservacao, BR-13506900 Rio Claro, SP - Brazil

^[2] Univ Fed Santa Maria, PPG Biodiversidade Anim, BR-97105900 Santa Maria, RS - Brazil

^[3] Caipora Cooperat Conservacao Nat, BR-88040400 Florianopolis, SC - Brazil

^[4] Univ Fed Santa Catarina, Dept Ecol & Zool, BR-88040970 Florianopolis, SC - Brazil

^[5] Univ Fed Santa Catarina, PPG Ecol, BR-88040900 Florianopolis, SC - Brazil

^[6] Univ Fed Mato Grosso, PPG Ecol & Conservacao, BR-79070900 Campo Grande, MS - Brazil

^[7] Univ Fed Mato Grosso do Sul, Dept Ecol, BR-79070900 Campo Grande, MS - Brazil

^[8] Univ East Anglia, Int Master Appl Ecol, Norwich NR4 7TJ, Norfolk - England

^[9] Inst Ambiental Bruderthal, BR-88353000 Brusque, SC - Brazil

^[10] Inst Felinos Aguai, BR-88811410 Criciuma, SC - Brazil

^[11] Univ Estado Santa Catarina, PPG Engn Florestal, BR-88520000 Lages, SC - Brazil

^[12] Univ Fed Santa Maria, Dept Ecol Evolucao, BR-97105900 Santa Maria, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF MAMMALOGY; v. 98, n. 6, p. 1721-1731, DEC 1 2017.
• Citações Web of Science: 5

Resumo

Habitat fragmentation reduces biodiversity and affects ecological processes that are fundamental for maintaining ecosystem services. We investigated how landscape structure-percent forest cover, patch density, percent cover by edge, perimeter-area ratio, and spatial heterogeneity-affects the diversity of mammalian carnivores at multiple extents within 22 Atlantic Forest landscapes. We hypothesized that 1) species richness of carnivores is positively related to forest cover; and 2) the occurrence of species will vary according to its sensitivity to forest loss and its preference for forest or open areas. Species richness, composition, and occurrence of mammalian carnivores were correlated with several landscape structure metrics. Due to a high correlation among the metrics, we adopted forest cover as the principal predictor variable. We compared a forest cover model to a null model using Akaike Information Criterion (AICc), and evaluated other fragmentation metrics using a redundancy analysis. Carnivore species richness was positively related to forest cover and negatively associated with other fragmentation metrics. However, the responses to landscape structure differed among species, possibly due to their differences in habitat use. Landscape configuration is an important factor influencing carnivore species composition. Forest cover can explain some, but not all, carnivore species occurrence. Our results reinforce the protection of forests as fundamental to the conservation of carnivore species and the ecological processes in which they participate. (AU)

• Processo FAPESP: 13/50421-2 - Novos métodos de amostragem e ferramentas estatísticas para pesquisa em biodiversidade: integrando ecologia de movimento com ecologia de população e comunidade
• Beneficiário: Milton Cezar Ribeiro
• Modalidade de apoio: Auxílio à Pesquisa - Regular