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Jaguar density in the most threatened ecoregion of the Amazon

  • Eloisa Neves Mendonça ORCID logo EMAIL logo , Ana Luisa Albernaz , Alexandre Martins Costa Lopes and Elildo A. R. Carvalho ORCID logo
Published/Copyright: February 2, 2023
Mammalia
From the journal Mammalia Volume 87 Issue 3

Abstract

Population parameters provide essential information for conservation efforts aimed at target species. We used the spatially explicit capture-recapture method to estimate the jaguar density and population size in the Gurupi Jaguar Conservation Unit (JCU), located in the most threatened ecoregion of the Amazon. The estimated density of 2.62 individuals/100 km2 in a continuous forest of over 10,000 km2 implies a small effective population size, underscoring the threat to the long-term viability of the Gurupi JCU’s jaguar population. We recommend urgent forest restoration actions to reduce fragmentation and improve connectivity between Gurupi JCU and other forest fragments to facilitate jaguar gene flow.

Keywords: Belém area of endemism; Jaguar Conservation Unit; Panthera onca ; spatial capture-recapture
Corresponding author: Eloisa Neves Mendonça, Museu Paraense Emilio Goeldi/MPEG, Coordenação de Ciências da Terra e Ecologia, Av. Perimetral, 1901, Terra Firme, Belém (PA) CEP 66077-830, Brasil; and Instituto Chico Mendes de Conservação da Biodiversidade/ICMBio, Reserva Biológica do Gurupi, Rodovia BR 222, km 12, Pequiá, Açailândia (MA) CEP 65930-000, Brasil, E-mail:

Acknowledgments

We thank the following people and institutions for support during this research: Francisco W. M. Silva, Tatiane Cardoso, Flávio Queiroz, Quintino Kaapor, Irakaju Kaapor, Programa ARPA/MMA, WWF Brazil.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare that they have no conflicts of interest regarding this article.

  4. Research ethics: The competent bodies authorized the research in GBR, through SISBio 66931 issued by ICMBio, and in ATIL, through license 101/AAEP/PRESI/2019 issued by FUNAI.

References

Almeida, A.S. and Vieira, I.C.G. (2010). Centro de Endemismo Belém: status da vegetação remanescente e desafios para a conservação da biodiversidade e restauração ecológica. Rev. Estud. Univ. 36: 95–111.Search in Google Scholar

Borchers, D.L. and Efford, M.G. (2008). Spatially explicit maximum likelihood methods for capture-recapture studies. Biometrics 64: 377–385, https://doi.org/10.1111/j.1541-0420.2007.00927.x.Search in Google Scholar PubMed

Burnham, K.P. and Anderson, D.R. (2002). Model selection and inference: a practical information-theoretic approach, 2nd ed. Springer-Verlag, New York.Search in Google Scholar

Carbone, C. and Gittleman, J.L. (2002). A common rule for the scaling of carnivore density. Science 295: 2273–2276, https://doi.org/10.1126/science.1067994.Search in Google Scholar PubMed

Cardillo, M., Mace, G.M., Jones, K.E., Bielby, J., Bininda-Emonds, O.R.P., Sechrest, W., Orme, C.D.L., and Purvis, A. (2005). Evolution: multiple causes of high extinction risk in large mammal species. Science 309: 1239–1241, https://doi.org/10.1126/science.1116030.Search in Google Scholar PubMed

Cavalcanti, S.M.C. and Gese, E.M. (2009). Spatial ecology and social interactions of jaguars (Panthera onca) in the Southern Pantanal, Brazil. J. Mammal. 90: 935–945, https://doi.org/10.1644/08-MAMM-A-188.1.Search in Google Scholar

Cavalcanti, S.M.C., Crawshaw, P.Jr., and Marchini, S. (2021). Predação de gado por onças no Pantanal: características, dinâmica e o conflito com fazendeiros. Bol. do Mus. Para. Emilio Goeldi. – Ciências Nat. 16: 313–334, https://doi.org/10.46357/bcnaturais.v16i3.810.Search in Google Scholar

Chinchilla, S., van den Berghe, E., Polisar, J., Arévalo, C., and Bonacic, C. (2022). Livestock–carnivore coexistence: moving beyond preventive killing. Animals 12: 479, https://doi.org/10.3390/ani12040479.Search in Google Scholar PubMed PubMed Central

Clark, J.D. (2019). Comparing clustered sampling designs for spatially explicit estimation of population density. Popul. Ecol. 61: 93–101, https://doi.org/10.1002/1438-390x.1011.Search in Google Scholar

Da Silva, J.M., Rylands, A., and Fonseca, G. (2005). O destino das áreas de endemismo da Amazonia. Megadiversidade 1: 124–131.Search in Google Scholar

De Oliveira, T.G., Gerude, R.G., Dias, P.A., and Resende, L.B. (2011). Utilização de caça pelos índios Awá/Guajá e Ka’apor da Amazônia Maranhense. In: Martins, M.B., and De Oliveira, T.G. (Eds.), Amazônia Maranhense: diversidade e conservação. MPEG, Belém, pp. 271–279.Search in Google Scholar

De Oliveira, T.G., Ramalho, E.E., and De Paula, R.C. (2012). Red List assessment of the jaguar in Brazilian Amazonia. Cat News: special issue 7: 8–13.Search in Google Scholar

De Paula, R.C., Desbiez, A., and Cavalcanti, S.M.C. (2013). Plano de Ação Nacional para Conservação da Onça-pintada. Série Espécies Ameaçadas. Instituto Chico Mendes de Conservação da Biodiversidade, Brasília (DF).Search in Google Scholar

Efford, M.G. (2019a). Non-circular home ranges and the estimation of population density. Ecology 100: e02580, https://doi.org/10.1002/ecy.2580.Search in Google Scholar PubMed

Efford, M.G. (2019b). SECR: spatially explicit capture-recapture models, R package version 4.0.1, Available at: https://CRAN.R-project.org/package=secr.Search in Google Scholar

Efford, M.G. and Fewster, R.M. (2013). Estimating population size by spatially explicit capture–recapture. Oikos 122: 918–928, https://doi.org/10.1111/j.1600-0706.2012.20440.x.Search in Google Scholar

Emmons, L.H. (1987). Comparative feeding ecology of felids in a neotropical rainforest. Behav. Ecol. Sociobiol. 20: 271–283, https://doi.org/10.1007/BF00292180.Search in Google Scholar

Espinosa, S., Celis, G., and Branch, L.C. (2018). When roads appear jaguars decline: increased access to an Amazonian wilderness area reduces potential for jaguar conservation. PLoS One 13: e0189740, https://doi.org/10.1371/journal.pone.0189740.Search in Google Scholar PubMed PubMed Central

Frankham, R., Bradshaw, C.J.A., and Brook, B.W. (2014). Genetics in conservation management: revised recommendations for the 50/500 rules, Red List criteria and population viability analyses. Biol. Conserv. 170: 56–63, https://doi.org/10.1016/j.biocon.2013.12.036.Search in Google Scholar

Garcia, U.F. (2018). Crônicas de caça e criação, Coleção Mundo Indígena. Fapesp, Hedra, p. 658.Search in Google Scholar

Haag, T., Santos, A.S., Sana, D.A., Morato, R.G., Cullen, L., Crawshaw, P.G., De Angelo, C., Di Bitetti, M.S., Salzano, F.M., and Eizirik, E. (2010). The effect of habitat fragmentation on the genetic structure of a top predator: loss of diversity and high differentiation among remnant populations of Atlantic Forest jaguars (Panthera onca). Mol. Ecol. 19: 4906–4921, https://doi.org/10.1111/j.1365-294X.2010.04856.x.Search in Google Scholar PubMed

Harmsen, B.J., Foster, R.J., and Quigley, H. (2020). Spatially explicit capture recapture density estimates: robustness, accuracy and precision in a long-term study of jaguars (Panthera onca). PLoS One 15: e0227468, https://doi.org/10.1371/journal.pone.0227468.Search in Google Scholar PubMed PubMed Central

Hoogesteijn, R. and Hoogesteijn, A. (2014). Anti-predation strategies for cattle ranches in Latin America: a guide. Panthera. Eckograf Soluçoes Impressas Ltda, Campo, Grande, MS, Brazil, pp. 64.Search in Google Scholar

Jędrzejewski, W., Puerto, M.F., Goldberg, J.F., Hebblewhite, M., Abarca, M., Gamarra, G., Calderón, L.E., Romero, J.F., Viloria, Á.L., Carreño, et al.. (2017). Density and population structure of the jaguar (Panthera onca) in a protected area of Los Llanos, Venezuela, from 1year of camera trap monitoring. Mammal Res. 62: 9–19, https://doi.org/10.1007/s13364-016-0300-2.Search in Google Scholar

Jędrzejewski, W., Robinson, H.S., Abarca, M., Zeller, K.A., Velasquez, G., Paemelaere, E.A.D., Goldberg, J.F., Payan, E., Hoogesteijn, R., Boede, E.O., et al.. (2018). Estimating large carnivore populations at global scale based on spatial predictions of density and distribution – application to the jaguar (Panthera onca). PLoS One 13: e0194719, https://doi.org/10.1371/journal.pone.0194719.Search in Google Scholar PubMed PubMed Central

Karanth, K.U., Nichols, J.D., Kumar, N.S., Link, W.A., and Hines, J.E. (2004). Tigers and their prey: predicting carnivore densities from prey abundance. Proc. Natl. Acad. Sci. U.S.A. 101: 4854–4858, https://doi.org/10.1073/pnas.0306210101.Search in Google Scholar PubMed PubMed Central

Michalski, F. and Peres, C.A. (2007). Disturbance-mediated mammal persistence and abundance-area relationships in Amazonian forest fragments. Conserv. Biol. 21: 1626–1640, https://doi.org/10.1111/j.1523-1739.2007.00797.x.Search in Google Scholar PubMed

Morato, R.G., Stabach, J.A., Fleming, C.H., Calabrese, J.M., De Paula, R.C., Ferraz, K.M.P.M., Kantek, D.L.Z., Miyazaki, S.S., Pereira, T.D.C., Araujo, G.R., et al.. (2016). Space use and movement of a Neotropical top predator: the endangered jaguar. PLoS One 11: e0168176, https://doi.org/10.1371/journal.pone.0168176.Search in Google Scholar PubMed PubMed Central

Olsoy, P.J., Zeller, K.A., Hicke, J.A., Quigley, H.B., Rabinowitz, A.R., and Thornton, D.H. (2016). Quantifying the effects of deforestation and fragmentation on a range-wide conservation plan for jaguars. Biol. Conserv. 203: 8–16, https://doi.org/10.1016/j.biocon.2016.08.037.Search in Google Scholar

Peres, C.A. (2000). Effects of subsistence hunting on vertebrate community structure in Amazonian Forests. Conserv. Biol. 14: 240–253, https://doi.org/10.1046/j.1523-1739.2000.98485.x.Search in Google Scholar

Peres, C.A. and Lake, I.R. (2003). Extent of nontimber resource extraction in tropical forests: accessibility to game vertebrates by hunters in the Amazon basin. Conserv. Biol. 17: 521–535, https://doi.org/10.1046/j.1523-1739.2003.01413.x.Search in Google Scholar

R Core Team. (2021). R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, Available at: https://www.R-project.org/.Search in Google Scholar

Rabinowitz, A. and Zeller, K.A. (2010). A range-wide model of landscape connectivity and conservation for the jaguar, Panthera onca. Biol. Conserv. 143: 939–945, https://doi.org/10.1016/j.biocon.2010.01.002.Search in Google Scholar

Rabinowitz, A.R. and Nottingham, B.G. (1986). Ecology and behaviour of the jaguar (Panthera onca) in Belize, Central America. J. Zool. 210: 149–159, https://doi.org/10.1111/j.1469-7998.1986.tb03627.x.Search in Google Scholar

Romero-Muñoz, A., Torres, R., Noss, A.J., Giordano, A.J., Quiroga, V., Thompson, J.J., Baumann, M., Altrichter, M., McBride, R., Velilla, M., et al.. (2019). Habitat loss and overhunting synergistically drive the extirpation of jaguars from the Gran Chaco. Divers. Distrib. 25: 176–190, https://doi.org/10.1111/ddi.12843.Search in Google Scholar

Sampaio, R., Lima, A.P., Magnusson, W.E., and Peres, C. (2010). Long-term persistence of midsized to large-bodied mammals in Amazonian landscapes under varying contexts of forest cover. Biodivers. Conserv. 19: 2421–2439, https://doi.org/10.1007/s10531-010-9848-3.Search in Google Scholar

Sanderson, E.W., Redford, K.H., Chetkiewicz, C.L.B., Medellin, R.A., Rabinowitz, A.R., Robinson, J.G., and Taber, A.B. (2002). Planning to save a species: the jaguar as a model. Conserv. Biol. 16: 58–72, https://doi.org/10.1046/j.1523-1739.2002.00352.x.Search in Google Scholar PubMed

Seymour, K.L. (1989). Panthera onca. Mamm. Species 340: 1–9, https://doi.org/10.2307/3504096.Search in Google Scholar

Silva Junior, C.H.L., Celentano, D., Rousseau, G.X., de Moura, E.G., Varga, I.van D., Martinez, C., and Martins, M.B. (2020). Amazon forest on the edge of collapse in the Maranhão State, Brazil. Land Use Pol. 97: 104806, https://doi.org/10.1016/j.landusepol.2020.104806.Search in Google Scholar

Thompson, J.J., Morato, R.G., Niebuhr, B.B., Alegre, V.B., Oshima, J.E.F., de Barros, A.E., Paviolo, A., de la Torre, J.A., Lima, F., McBride, R.T., et al.. (2021). Environmental and anthropogenic factors synergistically affect space use of jaguars. Curr. Biol. 31: 3457–3466.e4, https://doi.org/10.1016/j.cub.2021.06.029.Search in Google Scholar PubMed

Tobler, M.W. and Powell, G.V.N. (2013). Estimating jaguar densities with camera traps: problems with current designs and recommendations for future studies. Biol. Conserv. 159: 109–118, https://doi.org/10.1016/J.BIOCON.2012.12.009.Search in Google Scholar

Tobler, M.W., Carrillo-Percastegui, S.E., Zúñiga Hartley, A., and Powell, G.V.N. (2013). High jaguar densities and large population sizes in the core habitat of the southwestern Amazon. Biol. Conserv. 159: 375–381, https://doi.org/10.1016/j.biocon.2012.12.012.Search in Google Scholar

Tortato, F.R., Izzo, T.J., Hoogesteijn, R., and Peres, C.A. (2017). The numbers of the beast: valuation of jaguar (Panthera onca) tourism and cattle depredation in the Brazilian Pantanal. Global Ecol. Conserv. 11: 106–114, https://doi.org/10.1016/j.gecco.2017.05.003.Search in Google Scholar

Villalva, P. and Palomares, F. (2022). A continental approach to jaguar extirpation: a tradeoff between anthropic and intrinsic causes. J. Nat. Conserv. 66: 126145, https://doi.org/10.1016/j.jnc.2022.126145.Search in Google Scholar

Zanin, M., Palomares, F., and Brito, D. (2015). The jaguar’s patches: viability of jaguar populations in fragmented landscapes. J. Nat. Conserv. 23: 90–97, https://doi.org/10.1016/j.jnc.2014.06.003.Search in Google Scholar
Received: 2022-06-02
Accepted: 2023-01-12
Published Online: 2023-02-02
Published in Print: 2023-05-25

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/mammalia-2022-0058
Keywords for this article
Belém area of endemism; Jaguar Conservation Unit; Panthera onca; spatial capture-recapture

Articles in the same Issue

  1. Frontmatter
  2. Physiology
  3. Food or rut: contrasting seasonal patterns in fat deposition between males and females of northern and southern sika deer populations in Japan
  4. Ecology
  5. Genetic diversity and population structure of Himalayan tahr (Hemitragus jemlahicus) from Western Himalaya
  6. First record of the servaline morph in a serval (Leptailurus serval Schreber, 1776) in Akagera National Park, Rwanda
  7. Enchisthenes hartii (Thomas, 1892), in Jalisco, Mexico, 68 and 47 years after its first and last record
  8. A case of arboreal nest building in the small Japanese field mouse (Apodemus argenteus)
  9. Biogeography
  10. New data on the recently described Brazilian Cerrado hotspot endemic Cerradomys akroai Bonvicino, Casado et Weksler, 2014 (Rodentia: Cricetidae)
  11. Every flight is a surprise: first records of the southern maned three-toed sloth (Bradypus crinitus: Bradypodidae) through drones
  12. New bat records for altitudinal Atlantic Forest in Espírito Santo, southeastern Brazil
  13. Reducing bat mortality at wind farms using site-specific mitigation measures: a case study in the Mediterranean region, Croatia
  14. Continued survival of the elusive Seram orange melomys (Melomys fulgens)
  15. Conservation
  16. The name-bearing type is essential for the objective identification of a taxonomic name: the message from the lectotypification of Lemmus obensis bungei
  17. Eumops perotis (Schinz, 1821) (Chiroptera, Molossidae): a new genus and species for Chile revealed by acoustic surveys
  18. Taxonomy/Phylogeny
  19. New reports of morphological anomalies in leaf-nosed bats (Chiroptera: Phyllostomidae) from Colombia
  20. Jaguar density in the most threatened ecoregion of the Amazon
  21. Mormoopid bats from Brazil: updates on the geographic distribution of three species and their echolocation calls
  22. Evolutionary Biology
  23. The raccoon dog Nyctereutes procyonoides in Italy: a review of confirmed occurrences
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