Density estimates and conservation of Leopardus pardalis southernmost population of the Atlantic Forest

Kasper, Carlos Benhur; Mazim, Fábio Dias; Soares, José Bonifácio Garcia; Oliveira, Tadeu Gomes de

doi:10.1590/1678-476620151053367371

Cited by 10 publications

(7 citation statements)

References 23 publications

(27 reference statements)

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“…tiger, Panthera tigris (Linnaeus, 1758), Karanth, 1995;Karanth and Nichols, 1998;jaguar, Panthera onca (Linnaeus, 1758), Silver et al, 2004;Soisalo and Cavalcanti, 2006;Paviolo et al, 2008) and smaller species (e.g. ocelot Leopardus pardalis (Linnaeus, 1758), Bitetti et al, 2009;Kasper et al, 2015, andGeoffroy's cat, Leopardus geoffroyi (D'Orbigny &Gervais, 1844;Cuellar et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Activity pattern of medium and large sized mammals and density estimates of Cuniculus paca (Rodentia: Cuniculidae) in the Brazilian Pampa

et al. 2018

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Between July 2014 and April 2015, we conducted weekly inventories of the circadian activity patterns of mammals in Passo Novo locality, municipality of Alegrete, southern Brazil. The vegetation is comprised by a grassy-woody steppe (grassland). We used two camera traps alternately located on one of four 1 km transects, each separated by 1 km. We classified the activity pattern of species by the percentage of photographic records taken in each daily period. We identify Cuniculus paca individuals by differences in the patterns of flank spots. We then estimate the density 1) considering the area of riparian forest present in the sampling area, and 2) through capture/recapture analysis. Cuniculus paca, Conepatus chinga and Hydrochoerus hydrochaeris were nocturnal, Cerdocyon thous had a crepuscular/nocturnal pattern, while Mazama gouazoubira was cathemeral. The patterns of circadian activity observed for medium and large mammals in this Pampa region (southern grasslands) may reflect not only evolutionary, biological and ecological affects, but also human impacts not assessed in this study. We identified ten individuals of C. paca through skin spot patterns during the study period, which were recorded in different transects and months. The minimum population density of C. paca was 3.5 individuals per km2 (resident animals only) and the total density estimates varied from 7.1 to 11.8 individuals per km2, when considering all individuals recorded or the result of the capture/recapture analysis, respectively.

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Section: Discussionmentioning

confidence: 99%

Activity pattern of medium and large sized mammals and density estimates of Cuniculus paca (Rodentia: Cuniculidae) in the Brazilian Pampa

et al. 2018

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“…We were unable to estimate densities for TUSP and SGNP, due to the small number of records obtained for these areas. In TUSP, low margay detection contrasts with high ocelot densities (14 (14-24 CI)-66 (49-182 CI) individuals/100km 2 [93] and 15.5 (6.4-36 CI) individuals/ 100km 2 [94]). The suspected 'ocelot effect' may be affecting margay; still, because this is quite a pristine area, with high native tree cover, we expected to collect enough data to at least estimate the density in the area, which was not the case.…”

Section: Plos Onementioning

confidence: 99%

Margay (Leopardus wiedii) in the southernmost Atlantic Forest: Density and activity patterns under different levels of anthropogenic disturbance

et al. 2020

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The margay (Leopardus wiedii) is a small Neotropical arboreal wild cat. This species is thought to be forest-dependent, although few studies so far have directly evaluated the relationships between spatiotemporal aspects of its ecology and landscape characteristics. The aim of this study was to estimate margay population density and activity patterns in six areas with different habitat types and levels of anthropogenic disturbance in the southernmost Atlantic Forest of Brazil. Our working hypothesis was that density and activity patterns differed between areas in response to differences in forest cover and anthropogenic disturbance. Margay records were obtained using camera trapping, during spring and summer from 2017 to 2019. In all areas, the sampling scheme consisted of 20 un-baited stations, set 1km apart, each containing two paired cameras. We assessed the potential effects of environmental variables, including anthropogenic factors, on margay density, rate of detection and space use by comparing nine spatial capture-recapture (SCR) models. Activity patterns of the margay, its potential prey, and competitors were described and compared using the date and time of the records. We obtained 66 records of margay. Two of the six sampled areas were excluded from subsequent analyses due to the small number of records. The density estimated by the top-ranked model varied from 9.6±6.4 individuals/100km 2 in the area with the highest human disturbance to 37.4±15.1 individuals/100km 2 in a less disturbed area. Margay densities responded positively to vegetation cover, supporting the hypothesis of forest dependence by the species. Both the margay and their potential prey (small rodents and marsupials) were found to be mostly nocturnal. Margay activity also overlapped with that of the ocelot, Leopardus pardalis, and with mammals associated with human

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“…Our ocelot capture rate is low (0.5%) compared to other areas of the Atlantic Forest. Goulart et al (2009), Srbek-Araujo and Chiarello (2013) and Kasper et al (2015), studying ocelot populations from southern and southeastern Brazil, reported a capture rate of 0.9%, 0.9% and 13.1%, respectively. Therefore, our results indicate that the ocelot's remnant populations might occur in a very low abundance.…”

Section: Discussionmentioning

confidence: 97%

“…Our assembled data confirm the current presence of the ocelot and the South American coati in the PEC. Although these species are among the most common mediumsized carnivores in other Atlantic Forest areas (Rocha-Mendes et al 2010, Kasper et al 2015, we obtained only a few records for both species, even with multi-complementary approaches. The scarcity of records for ocelots and coatis could be either due to an ongoing local extinction process, which may be a result of low population density or even a sink population or be explained yet by incipient field effort in the region.…”

Section: Discussionmentioning

confidence: 99%

“…In the Atlantic Forest, the ocelot [Leopardus pardalis (Linnaeus, 1758)] and the South American coati [Nasua nasua (Linnaeus, 1766)] are among the most common mesocarnivores (Rocha-Mendes et al 2010, Kasper et al 2015. The coati is an omnivorous, diurnal and conspicuous species, which lives in large groups and emits loud vocalizations that are easily identified by lay people (Gompper and Decker 1998).…”

Section: Introductionmentioning

confidence: 99%

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Recording of relict ocelot (Leopardus pardalis) and South American coati (Nasua nasua) populations in the biodiversity hotspot Pernambuco Endemism Center, Northern Atlantic Forest, Brazil

et al. 2018

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The northern portion of the Atlantic Forest, namely Pernambuco Endemism Center (PEC), faces an extreme level of forest loss, with only 2% of its original forest remaining. In the PEC, mesocarnivores are the only remaining carnivores and, among them, the ocelot and South American coati present a poorly known or even ignored distribution. Our goal is to provide an overview of the current distribution and conservation status of both species in the PEC through camera trap survey, review of published scientific literature and a search for voucher specimens in mammal collections. Our data confirm the presence of the ocelot and the South America coati in the PEC. The ocelots were mainly recorded in fragments smaller than 12 km2, suggesting they might access the monoculture matrix and anthropogenic areas. The few recent records of coatis suggest a worse scenario, predicting an imminent local extinction. The PEC has witnessed a historical continued deforestation, which has reduced the remaining fragments and contributed to the accentuated decline of both species populations. Nevertheless, these Atlantic Forest remnants are paramount to supporting relict populations of mesocarnivores in the PEC, and their maintenance and connectivity should be a conservation priority.

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Density estimates and conservation of Leopardus pardalis southernmost population of the Atlantic Forest

Cited by 10 publications

References 23 publications

Activity pattern of medium and large sized mammals and density estimates of Cuniculus paca (Rodentia: Cuniculidae) in the Brazilian Pampa

Activity pattern of medium and large sized mammals and density estimates of Cuniculus paca (Rodentia: Cuniculidae) in the Brazilian Pampa

Margay (Leopardus wiedii) in the southernmost Atlantic Forest: Density and activity patterns under different levels of anthropogenic disturbance

Recording of relict ocelot (Leopardus pardalis) and South American coati (Nasua nasua) populations in the biodiversity hotspot Pernambuco Endemism Center, Northern Atlantic Forest, Brazil

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