Illuminating big cat movements
does moonlight influence Jaguar space use in the southern Pantanal?
DOI:
https://doi.org/10.37002/biodiversidadebrasileira.v12i1.1839Palavras-chave:
Wetlands, human-wildlife conflict, social-ecological systemsResumo
In light of increasing levels of habitat loss and modification, knowledge on the environmental factors that influence space use by large carnivores emerges as crucial for effective conservation efforts. Despite a growing body of literature exploring moonlight influence on the activity of felid apex predators, its effects on jaguars (Panthera onca) remain largely understudied - including in the Brazilian Pantanal. This wetland is currently undergoing significant human-driven changes with the expansion of agricultural activities, and retaliatory killing of jaguars arises as one of the main threats to the species' persistence. Here we studied the influence of variation in nocturnal luminosity on jaguars' space use in the southern Pantanal. We analyzed GPS data of collared jaguars in fields potentially used as pastures considering the distance to the closest forest and luminosity in the context of low, medium and high moonlight intensities. We found that although jaguars tend to remain close to forest surroundings throughout the lunar cycle, they venture deeper in pastures under medium to high moonlight illumination. We suggest that jaguars' pasture use at our study site fits the predation risk hypothesis, where species at higher trophic levels tend to be more active with moonlight as it allows for greater predation success - especially considering that forest edges can provide shelter and facilitate stalking of cattle. Although we did not focus on predation success in our analysis, we recommend herds to be kept away from forest edges and the placement of physical barriers (e.g. fences) to prevent opportunistic jaguar attacks - especially on brighter nights.
Referências
Abreu UGP, McManus C, Santos SA. Cattle ranching, conservation and transhumance in the Brazilian Pantanal. Pastoralism, 1:99-114, 2010.
Araujo AGJ, et al. Beef cattle production systems in South Pantanal: Considerations on territories and integration Scale. Land, 7(4): 156, 2018.
de Araujo, GR, et al. Use of foot snares to capture large felids. Methods in Ecology and Evolution, 12(2): 322- 327, 2021.
Balbuena-Serrano Á, Zarco González MM, MonroyVilchis O, Morato RG, de Paula RC. Hotspots of livestock depredation by pumas and jaguars in Brazil: a biome-scale analysis. Animal Conservation:1-13, 2020.
Bjorneraas K, Van Moorter B, Rolandsen CM, Herfindal I. Screening global positioning system location data for errors using animal movement characteristics. Journal of Wildlife Management, 74: 1361-1366, 2010.
Cavalcanti SMC, Gese EM. Kill rates and predation patterns of jaguars (Panthera onca) in the southern Pantanal, Brazil. Journal of Mammalogy, 91(3): 722- 736, 2010.
Cavalcanti SMC, Gese EM. Spatial ecology and social interactions of jaguars (Panthera onca) in the southern Pantanal, Brazil. Journal of Mammalogy, 90(4): 935- 945, 2009.
Cozzi G, Broekhuis F, McNutt JW, Turnbull LA, Macdonald DW, Schmid B. Fear of the dark or dinner by moonlight? Reduced temporal partitioning among Africa's large carnivores. Ecology, 93(12): 2590-2599, 2012.
Crawshaw Jr. PG, Quigley HB. Jaguar spacing, activity and habitat use in a seasonally flooded environment in Brazil. Journal of Zoology, 223(3): 357-370, 1991.
Díaz S, et al. Summary for policymakers of the global assessment report on biodiversity and ecosystem services of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), 39pp., 2019.
Dirzo R, Young HS, Galetti M, Ceballos G, Isaac NJ, Collen B. Defaunation in the Anthropocene. Science, 345(6195): 401-406, 2014.
Einhorn C, Arréllaga MM, Migliozzi B, Reinhard S. The world's Largest tropical wetland has become an inferno. The New York Times, URL: https://www.nytimes.com/ interactive/2020/10/13/climate/pantanal-brazil-fires. html, 13 October 2020.
Frank L, Simpson D, Woodroffe R. Foot snares: an effective method for capturing African lions. Wildlife Society Bulletin (1973-2006), 31(1): 309-314, 2003.
Graipel ME, Bogoni JA, Giehl ELH, Cerezer FO, Cáceres NC, Eizirik E. Melanism evolution in the cat family is influenced by intraspecific communication under low visibility. PloS one, 14(12): e0226136, 2019.
Harmsen BJ, Foster RJ, Silver SC, Ostro LE, Doncaster CP. Jaguar and puma activity patterns in relation to their main prey. Mammalian Biology, 76(3): 320-324, 2011.
Kanda CZ et al. Spatiotemporal dynamics of conspecific movement explain a solitary carnivore's space use. Journal of Zoology, 308(1): 66-74, 2019.
Macdonald DW. Mammal conservation: Old problems, new perspectives, transdisciplinarity, and the coming of age of conservation geopolitics. Annual Review of Environment and Resources, 44: 61-88, 2019.
de Matos Dias D, de Campos CB, Rodrigues FHG. Behavioural ecology in a predator-prey system. Mammalian Biology, 92(1): 30-36, 2018.
Milone AC, et al. Introdução à astronomia e astrofísica. São José dos Campos: INPE, 2013. INPE-7177- PUD/38. URL: http://www.inpe.br/ciaa2018/arquivos/ pdfs/apostila_completa_2018.pdf, 433 pp., 2018.
Miller JR. Mapping attack hotspots to mitigate human- carnivore conflict: approaches and applications of spatial predation risk modeling. Biodiversity Conservation, 24(12): 2887-2911, 2015.
Miranda CDS, Paranho Filho AC, Pott A. Changes in vegetation cover of the Pantanal wetland detected by vegetation index: A strategy for conservation. Biota Neotropica, 18(1), 2018.
Montalvo VH, et al. Influence of sea turtle nesting on hunting behavior and movements of jaguars in the dry forest of northwest Costa Rica. Biotropica: 1-8, 2020.
Morato RG, et al. Comparative analyses of semen and endocrine characteristics of free-living versus captive jaguars (Panthera onca). Reproduction, 122(5): 745- 751, 2001.
Morato RG, de Mello Beisiegel B, Ramalho EE, de Campos C, Boulhosa RLP. Avaliação do risco de extinção da onça-pintada Panthera onca (Linnaeus, 1758) no Brasil. Biodiversidade Brasileira, (1): 122-132, 2013.
Morato RG, et al. Space use and movement of a neotropical top predator: the endangered jaguar. PloS one, 11(12), e0168176, 2016.
Morato RG et al. Resource selection in an apex predator and variation in response to local landscape characteristics. Biological Conservation, 228: 233-240, 2018.
Oriol-Cotterill A, Macdonald DW, Valeix M, Ekwanga S, Frank LG. Spatiotemporal patterns of lion space use in a human-dominated landscape. Animal Behaviour, 101: 27-39, 2015.
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