Abstract
Habitat loss and human-caused mortality have led to an approximate 50% reduction of the distribution of the jaguar (Panthera onca). The large contraction in the jaguar’s occurrence points to a need to understand its population size and habitat preferences to apply to the species’ conservation. Typically, jaguar densities are estimated with capture–recapture modeling of photographic captures of individually identifiable individuals, while habitat selection is estimated from telemetry data. However, advances in spatial capture-recapture modeling now permit the simultaneous estimation of density and habitat selection based solely upon photographic detection data from camera-trapping grids. Here, we used data from 356 double camera-trap stations across five sites in the Paraguayan Dry Chaco to simultaneously estimate jaguar density and resource selection. We found that jaguar densities ranged from 0.58 to 1.39 individuals/100 km2. At the spatial scale of our analysis, jaguars showed a strong preference for forest cover, while space use was not affected by the Human Footprint Index. Our density estimates were consistent with previous estimates based upon a subset of our data, as well as with estimates for jaguar populations in other dryland ecosystems. Furthermore, the strong selection for forest was also consistent with range-wide patterns in jaguar space use and habitat selection derived from telemetry data. Due to extensive and ongoing deforestation in the Dry Chaco, combined with high human-caused mortality, the jaguar is critically endangered in Paraguay. Although we show that jaguars can persist in anthropogenically altered landscapes in Paraguay, their long-term survival at the national level is strongly dependent upon the effective enforcement of the national jaguar conservation law, and application of the national jaguar management plan, to mitigate negative population effects from habitat loss and human-caused mortality.
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References
Altrichter M, Boaglio G, Perovic P (2006) The decline of jaguars Panthera onca in the Argentine Chaco. Oryx 40:302. https://doi.org/10.1017/S0030605306000731
Alvarenga GC, Chiaverini L, Cushman SA et al (2021) Multi-scale path-level analysis of jaguar habitat use in the Pantanal ecosystem. Biol Conserv 253:108900. https://doi.org/10.1016/j.biocon.2020.108900
Arnold TW (2010) Uninformative parameters and model selection using Akaike’s information criterion. J Wildl Manag 74:1175–1178. https://doi.org/10.1111/j.1937-2817.2010.tb01236.x
Baumann M, Israel C, Piquer-Rodríguez M et al (2017) Deforestation and cattle expansion in the Paraguayan Chaco 1987–2012. Reg Environ Chang 17:1179–1191. https://doi.org/10.1007/s10113-017-1109-5
Boron V, Tzanopoulos J, Gallo J et al (2016) Jaguar densities across human-dominated landscapes in Colombia: the contribution of unprotected areas to long term conservation. PLoS One 11:e0153973. https://doi.org/10.1371/journal.pone.0153973
Buchadas A, Baumann M, Meyfroidt P, Kuemmerle T (2022) Uncovering major types of deforestation frontiers across the world’s tropical dry woodlands. Nat Sustain. https://doi.org/10.1038/s41893-022-00886-9
Burke S, Mulligan M, Stolton S, Dudley N (2019) Ecosystem services provided by the habitat of the Jaguar. United Nations Development Program
Burnham KP, Anderson DR (2002) A practical information-theoretic approach. Model selection and multimodel inference, 2nd edn. Springer, New York
Caldas MM, Goodin D, Sherwood S et al (2015) Land-cover change in the Paraguayan Chaco: 2000–2011. J Land Use Sci 10:1–18. https://doi.org/10.1080/1747423X.2013.807314
Camino M, Thompson J, Andrade L et al (2020) Using local ecological knowledge to improve large terrestrial mammal surveys, build local capacity and increase conservation opportunities. Biol Conserv 244:108450. https://doi.org/10.1016/j.biocon.2020.108450
Camino M, Thompson J, Arriaga Velasco-Aceves P et al (2022) Less than six generations to save the chacoan peccary. Biodivers Conserv 31:413–432. https://doi.org/10.1007/s10531-021-02337-x
Cartes JL, Thompson J, Yanosky A (2015) El Chaco paraguayo como uno de los últimos refugios para los mamíferos amenazados del Cono Sur. Paraquaria Nat 3(2):37–47
Congreso de la Nación Paraguaya Ley N° 5302 de Conservación de la Panthera onca; 2014.
Curtis PG, Slay CM, Harris NL et al (2018) Classifying drivers of global forest loss. Science 361:1108–1111. https://doi.org/10.1126/science.aau3445
Da Ponte E, García-Calabrese M, Kriese J et al (2021) Understanding 34 years of Forest cover dynamics across the Paraguayan Chaco: characterizing annual changes and forest fragmentation levels between 1987 and 2020. Forests 13:25. https://doi.org/10.3390/f13010025
de la Sancha NU, Boyle SA, McIntyre NE et al (2021) The disappearing dry Chaco, one of the last dry forest systems on earth. Landsc Ecol 36:2997–3012. https://doi.org/10.1007/s10980-021-01291-x
de la Torre JA, González-Maya JF, Zarza H et al (2018) The jaguar’s spots are darker than they appear: assessing the global conservation status of the jaguar Panthera onca. Oryx 52:300–315. https://doi.org/10.1017/S0030605316001046
DGEEC (2004) Atlas de las Comunidades Indígenas en el Paraguay. Dirección General de Estadística, Encuestas y Censos
Fick SE, Hijmans RJ (2017) WorldClim 2: new 1-km spatial resolution climate surfaces for global land areas. Int J Climatol 37:4302–4315. https://doi.org/10.1002/joc.5086
Finnegan SP, Galvez-Bravo L, Silveira L et al (2020) Reserve size, dispersal and population viability of wide ranging carnivores: the case of jaguars in Emas National Park, Brazil. Anim Conserv acv 12608. https://doi.org/10.1111/acv.12608
Giordano AJ, Giménez D, Martínez V et al (2017) Carnivora. In: Asociación Paraguaya de Mastozoología, Secretaría del Ambiente (eds). Libro Rojo de los Mamíferos del Paraguay: especies amenazadas de extinción, p 137
Gutiérrez-González CE, Gómez-Ramírez MA, López-González CA, Doherty PF (2015) Are private reserves effective for jaguar conservation? PLoS One 10:e0137541. https://doi.org/10.1371/journal.pone.0137541
Hansen MC, Potapov PV, Moore R et al (2013) High-resolution global maps of 21st-century forest cover change. Science 342:850–853. https://doi.org/10.1126/science.1244693
Harihar A, Pandav B, Ghosh-Harihar M, Goodrich J (2020) Demographic and ecological correlates of a recovering tiger (Panthera tigris) population: lessons learnt from 13-years of monitoring. Biol Conserv 252:108848. https://doi.org/10.1016/j.biocon.2020.108848
Johnson DH (1980) The comparison of usage and availability measurements for evaluating resource preference. Ecology 61:65–71. https://doi.org/10.2307/1937156
Kuemmerle T, Altrichter M, Baldi G et al (2017) Forest conservation: remember Gran Chaco. Science 355:465. https://doi.org/10.1126/science.aal3020
Linden DW, Sirén APK, Pekins PJ (2018) Integrating telemetry data into spatial capture-recapture modifies inferences on multi-scale resource selection. Ecosphere 9:e02203. https://doi.org/10.1002/ecs2.2203
Manly BF, Alberto JAN (2016) Multivariate statistical methods: a primer. Chapman and Hall/CRC
Manly BFJ, McDonald LL, Thomas DL et al (2002) Resource selection by animals: statistical analysis and design for field studies. Kluwer Academic Publishers
McBride RT, Thompson JJ (2018) Space use and movement of jaguar (Panthera onca) in western Paraguay. Mammalia 82:540–549. https://doi.org/10.1515/mammalia-2017-0040
Mereles MF (2005) Una aproximación al conocimiento de las formaciones vegatales del Chaco Boreal, Paraguay. Rojasiana 6:5–48
Mereles MF, Céspedes G, Cartes JL et al (2019) Biological corridors as a connectivity tool in the region of the great American chaco: identification of biodiversity hotspots in the ecoregions of the paraguayan chaco. Restor Ecol 2:20–26. https://doi.org/10.30564/re.v2i1.1324
Morato RG, Stabach JA, Fleming CH 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
Morato RG, Connette GM, Stabach JA et al (2018) Resource selection in an apex predator and variation in response to local landscape characteristics. Biol Conserv 228:233–240. https://doi.org/10.1016/j.biocon.2018.10.022
Morin DJ, Fuller AK, Royle JA, Sutherland C (2017) Model-based estimators of density and connectivity to inform conservation of spatially structured populations. Ecosphere 8:e01623. https://doi.org/10.1002/ecs2.1623
Noss AJ, Gardner B, Maffei L et al (2012) Comparison of density estimation methods for mammal populations with camera traps in the Kaa-Iya del Gran Chaco landscape: density estimation with camera traps in the Chaco. Anim Conserv 15:527–535. https://doi.org/10.1111/j.1469-1795.2012.00545.x
Núñez-Regueiro MM, Branch L, Fletcher RJ et al (2015) Spatial patterns of mammal occurrence in forest strips surrounded by agricultural crops of the Chaco region, Argentina. Biol Conserv 187:19–26. https://doi.org/10.1016/j.biocon.2015.04.001
Olson DM, Dinerstein E, Wikramanayake ED et al (2001) Terrestrial ecoregions of the world: a new map of life on earth. Bioscience 51:933. https://doi.org/10.1641/0006-3568(2001)051[0933:TEOTWA]2.0.CO;2
Periago ME, Chillo V, Ojeda RA (2014) Loss of mammalian species from the south American Gran Chaco: empty savanna syndrome?: loss of Chacoan mammals. Mammal Rev. https://doi.org/10.1111/mam.12031
Qin S, Kuemmerle T, Meyfroidt P et al (2022) The geography of international conservation interest in South American deforestation frontiers. Conserv Lett 15. https://doi.org/10.1111/conl.12859
Quiroga VA, Boaglio GI, Noss AJ, Di Bitetti MS (2014) Critical population status of the jaguar Panthera onca in the Argentine Chaco: camera-trap surveys suggest recent collapse and imminent regional extinction. Oryx 48:141–148. https://doi.org/10.1017/S0030605312000944
Redford KH, Taber A, Simonetti JA (1990) There is more to biodiversity than the tropical rain forests. Conserv Biol 4:328–330. https://doi.org/10.1111/j.1523-1739.1990.tb00296.x
Romero-Muñoz A, Torres R, Noss AJ 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
Romero-Muñoz A, Benítez-López A, Zurell D et al (2020) Increasing synergistic effects of habitat destruction and hunting on mammals over three decades in the Gran Chaco. Ecography 43:954–966. https://doi.org/10.1111/ecog.05053
Royle JA, Chandler RB, Gazenski KD, Graves TA (2013a) Spatial capture–recapture models for jointly estimating population density and landscape connectivity. Ecology 94:287–294. https://doi.org/10.1890/12-0413.1
Royle JA, Chandler RB, Sun CC, Fuller AK (2013b) Integrating resource selection information with spatial capture-recapture. Methods Ecol Evol 4:520–530. https://doi.org/10.1111/2041-210X.12039
Royle JA, Fuller AK, Sutherland C (2018) Unifying population and landscape ecology with spatial capture-recapture. Ecography 41:444–456. https://doi.org/10.1111/ecog.03170
Sanderson EW, Jaiteh M, Levy MA et al (2002) The human footprint and the last of the wild. Bioscience 52:891. https://doi.org/10.1641/0006-3568(2002)052[0891:THFATL]2.0.CO;2
Sanderson EW, Beckmann JP, Beier P et al (2021) The case for reintroduction: the jaguar (Panthera onca) in the United States as a model. Conserv Sci and Prac 3:e392. https://doi.org/10.1111/csp2.392
Sanderson EW, Fisher K, Peters R et al (2022) A systematic review of potential habitat suitability for the jaguar Panthera onca in Central Arizona and New Mexico, USA. Oryx 56:116–127. https://doi.org/10.1017/S0030605320000459
Secretaría del Ambiente, Wildlife Conservation Society Paraguay, Itaipu Binacional (2016) Plan de manejo de la Panthera onca, Paraguay 2017–2026, Asunción
Semper-Pascual A, Macchi L, Sabatini FM et al (2018) Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco. J Appl Ecol 55:1218–1229. https://doi.org/10.1111/1365-2664.13074
Semper-Pascual A, Decarre J, Baumann M et al (2020) Using occupancy models to assess the direct and indirect impacts of agricultural expansion on species’ populations. Biodivers Conserv 29:3669–3688. https://doi.org/10.1007/s10531-020-02042-1
Sergio F, Caro T, Brown D et al (2008) Top predators as conservation tools: ecological rationale, assumptions, and efficacy. Annu Rev Ecol Evol Syst 39:1–19. https://doi.org/10.1146/annurev.ecolsys.39.110707.173545
Sollmann R, Furtado MM, Gardner B et al (2011) Improving density estimates for elusive carnivores: accounting for sex-specific detection and movements using spatial capture–recapture models for jaguars in Central Brazil. Biol Conserv 144:1017–1024. https://doi.org/10.1016/j.biocon.2010.12.011
Sollmann R, Tôrres NM, Furtado MM et al (2013) Combining camera-trapping and noninvasive genetic data in a spatial capture–recapture framework improves density estimates for the jaguar. Biol Conserv 167:242–247. https://doi.org/10.1016/j.biocon.2013.08.003
Sollmann R, Gardner B, Belant JL et al (2016) Habitat associations in a recolonizing, low-density black bear population. Ecosphere 7:e01406. https://doi.org/10.1002/ecs2.1406
Sutherland C, Fuller AK, Royle JA (2015) Modelling non-Euclidean movement and landscape connectivity in highly structured ecological networks. Methods Ecol Evol 6:169–177. https://doi.org/10.1111/2041-210X.12316
Thompson JJ, Velilla M (2017) Modeling the effects of deforestation on the connectivity of jaguar Panthera onca populations at the southern extent of the species’ range. Endanger Species Res 34:109–121. https://doi.org/10.3354/esr00840
Thompson JJ, Martí CM, Quigley H (2020) Anthropogenic factors disproportionately affect the occurrence and potential population connectivity of the Neotropic’s apex predator: the jaguar at the southwestern extent of its distribution. Glob Ecol Conserv 24:e01356. https://doi.org/10.1016/j.gecco.2020.e01356
Thompson JJ, Morato RG, Niebuhr BB 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
Thompson JJ, Velilla M, Cabral H et al (2022) Jaguar (Panthera onca) population density and landscape connectivity in a deforestation hotspot: the Paraguayan dry chaco as a case study. Perspect Ecol Conserv S2530064422000591. https://doi.org/10.1016/j.pecon.2022.09.001
Thornton D, Zeller K, Rondinini C et al (2016) Assessing the umbrella value of a range-wide conservation network for jaguars (Panthera onca). Ecol Appl 26:1112–1124. https://doi.org/10.1890/15-0602
Tilman D, Lehman CL (1994) Habitat destruction and the extinction debt. Nature 371:65–66
Tobler MW, Carrillo-Percastegui SE, Zúñiga Hartley A, Powell GVN (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
Tobler MW, Garcia-Anleu R, Carrillo-Percastegui SE et al (2018) Do responsibly managed logging concessions adequately protect jaguars and other large and medium-sized mammals? Two case studies from Guatemala and Peru. Biol Conserv 220:245–253. https://doi.org/10.1016/j.biocon.2018.02.015
United Nations Development Program, Panthera, Wildlife Conservation Society, Worldwide Fund for Nature (2019) Jaguar 2030 Roadmap. Regional plan to save America’s largest cat and its ecosystem.
Vallejos M, Volante JN, Mosciaro MJ et al (2015) Transformation dynamics of the natural cover in the Dry Chaco ecoregion: a plot level geo-database from 1976 to 2012. J Arid Environ 123:3–11. https://doi.org/10.1016/j.jaridenv.2014.11.009
Venables WN, Ripley BD (2002) Modern applied statistics with S, Fourth. Springer, New York
Venter O, Sanderson EW, Magrach A et al (2016) Sixteen years of change in the global terrestrial human footprint and implications for biodiversity conservation. Nat Commun 7. https://doi.org/10.1038/ncomms12558
Watson JEM, Evans T, Venter O et al (2018) The exceptional value of intact forest ecosystems. Nat Ecol Evol 2:599–610. https://doi.org/10.1038/s41559-018-0490-x
Williams BA, Venter O, Allan JR et al (2020) Change in terrestrial human footprint drives continued loss of intact ecosystems. One Earth 3:371–382. https://doi.org/10.1016/j.oneear.2020.08.009
Zalles V, Hansen MC, Potapov PV et al (2021) Rapid expansion of human impact on natural land in South America since 1985. Sci Adv 7:eabg1620. https://doi.org/10.1126/sciadv.abg1620
Zhao M, Heinsch FA, Nemani RR, Running SW (2005) Improvements of the MODIS terrestrial gross and net primary production global data set. Remote Sens Environ 95:164–176. https://doi.org/10.1016/j.rse.2004.12.011
Acknowledgments
We thank the ranch owners, administrators, and employees who facilitated and made our research possible. This research was funded by the Consejo Nacional de Ciencia y Tecnología (CONACYT) of Paraguay under project 14-INV-060 and by IUCN – Netherlands, in the person of Sander van Andel. JJT, MV, HCB, VR, JMCK, CBR, MFR, and JLC were partially supported by CONACYT through the program PRONII. We thank Esteban Vasconcellos for his cooperation and logistical support, the support of the Pykasu Community of the Pueblo Guaraní Ñandeva, and Ivan Benitez, Victor Robles, Javier Ovelar, Carlos Molinas, Patricia Salinas, Paola Cuevas, Johanna Lopez, Christian Palacios, Magdalena Benitez, Agustin Paviolo, José Aguilera, and José Méndez for assistance with data collection.
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Thompson, J.J. et al. (2023). Using Camera-Trap Data to Simultaneously Estimate Jaguar (Panthera onca) Density and Resource Selection in the Paraguayan Dry Chaco. In: Mandujano, S., Naranjo, E.J., Andrade Ponce, G.P. (eds) Neotropical Mammals. Springer, Cham. https://doi.org/10.1007/978-3-031-39566-6_10
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