Intraspecific, interspecific, and seasonal differences in the diet of three mid-sized carnivores in a large neotropical wetland

Bianchi, Rita de Cássia; Campos, Renata Calixto; Xavier-Filho, Nilson Lino; Olifiers, Natalie; Gompper, Matthew E.; Mourão, Guilherme

doi:10.1007/s13364-013-0137-x

Cited by 57 publications

(58 citation statements)

References 38 publications

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“…Ocelots were predominantly nocturnal in our study area, as also reported for the Bosque Chiquitano of Bolivia (Maffei et al, 2002), the Bolivian Amazon (Gómez et al, 2005), the Atlantic Forest of Argentina (Di Bitetti et al, 2006), and the Peruvian Amazon (Kolowski & Alonso, 2010). This nocturnal behaviour of ocelot may reflect the activity of their favourite small prey (Bianchi et al, 2014), which also tends to be nocturnal (Emmons, 1987). In fact, Porfirio et al (2016a) demonstrated that ocelots tend to tailor their activity to that of their potential prey, probably in an attempt to increase encounters.…”

Section: Resultssupporting

confidence: 88%

“…Our study revealed a high number of records from crab-eating fox and ocelot, followed by the jaguar, whereas the tayra and crab-eating raccoon, which use less the trails and dirt roads, were less detected (Harmsen et al, 2010). Crab-eating foxes and ocelots are common and abundant in the Pantanal (Bianchi et al, 2014), and this area is also considered one of the main strongholds for jaguars (Zimmermann et al, 2005). Moreover, dense habitats close to water and with prey abundance favour the jaguar's presence (Emmons, 1987;Crawshaw & Quigley, 1991).…”

Section: Resultsmentioning

confidence: 65%

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Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

Porfírio¹,

Foster²,

Sarmento³

et al. 2018

Nat. Cons. Res.

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Although known globally for its biodiversity, only around 5% of the Brazilian Pantanal is protected. The Network for Protection and Conservation of Amolar Mountain Ridge is an informal initiative that legally protects over 2000 km 2 of the Pantanal biome. Several camera-trapping surveys were carried out at Amolar Mountain Ridge from August 2011 to September 2013 in order to increase our knowledge of the species occurrence and its ecological requirements. The aims of this study were : 1) to inventory the carnivore species occurring within this network of protected areas; 2) to describe their activity patterns and 3) to discuss threats for those species' conservation in the region. We used the Kernel density method to describe the species' activity patterns. We obtained 764 records (from 12703 camera-days) of eight carnivores, including endangered species in Brazil, such as the jaguar (Panthera onca), puma (Puma concolor), and ocelot (Leopardus pardalis), that were among the most frequently recorded by camera traps. The other species detected were the South America coati (Nasua nasua), the tayra (Eira barbara), the crab-eating raccoon (Procyon cancrivorus) and the jaguarundi (Puma yagouaroundi). We provided information on activity patterns of the jaguar and puma, which exhibited cathemeral activity patterns, on the ocelot and crab-eating fox, which were mostly nocturnal, and on the Southern coati and jaguarundi, which were diurnal. Scansorial and species that occur naturally in low densities as the tayra and the crab-eating raccoon were difficult to be detected with the used camera trapping setting. However, due to the natural characteristics of the study area, camera trapping is among the most appropriate tools for providing data about carnivores and their prey. This information is essential to delineate conservation plans for Amolar Mountain Ridge.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 65%

Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

Porfírio¹,

Foster²,

Sarmento³

et al. 2018

Nat. Cons. Res.

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“…These characteristics could help distinguish P. (M.) pluripectinata from P. (M.) affinis. Infection by this species probably occurs in C. thous due to the variety of intermediate hosts such as invertebrates, which are part of the diet of C. thous in the Pantanal biome (BIANCHI et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The crab-eating fox is a medium-sized canid (4 to 11 kg) found throughout most of South America (BERTA, 1982;COURTENAY & MAFFEI, 2004;BIANCHI et al, 2014). In Brazil, it can be found in the Cerrado, Pantanal, Caatinga, and Atlantic Rainforest, with the exception of the Amazon basin (COURTENAY & MAFFEI, 2004).…”

Section: Introductionmentioning

confidence: 99%

New records of three species of nematodes in Cerdocyon thous from the Brazilian Pantanal wetlands

Gomes

Olifiers

Santos

et al. 2015

Rev. Bras. Parasitol. Vet.

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We report the occurrence of nematodes collected from the gut of roadkilled crab-eating foxes (two adult males and one juvenile female), Cerdocyon thous (Linnaeus, 1766), found on the BR 262 highway in Mato Grosso do Sul state, Brazil in 2011. Three helminth species were identified: Ancylostoma buckleyi, Pterygodermatites (Multipectines) pluripectinata, and Ascaridia galli. These nematodes are reported for the first time to infect C. thous from the Brazilian Pantanal wetlands, thereby expanding their geographical distribution.Keywords: Helminths, nematodes, crab-eating fox, Pantanal. ResumoEste estudo relata a ocorrência de nematoides coletados no sistema digestório de cachorros-do-mato Cerdocyon thous (Linnaeus, 1766) encontrados atropelados na rodovia BR 262, no Estado do Mato Grosso do Sul, Brasil, em 2011. Três espécies foram identificadas: Ancylostoma buckleyi, Pterygodermatites (Multipectines) pluripectinata e Ascaridia galli. A ocorrência destes nematoides foi registrada pela primeira vez em C. thous no bioma Pantanal, ampliando a distribuição geográfica destes helmintos parasitos em C. thous.

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“…In this regard, coati nests would act as an important link in the complex cycle of T. cruzi transmission in the Pantanal region, because coatis have high levels of T. cruzi prevalence and parasitemias (15) and are found together with triatomine bugs infected by T. cruzi in their nests. When coatis are generalists regarding their diet (47) , they become infected by T. cruzi by eating infected triatomine bugs, regardless of the classical vector transmission routes. Furthermore, since trans-ovarian transmission of T. cruzi has not been described for triatomines (1) , the immature stages of triatomine bugs present in the coati nests would become infected because of feeding on coatis infected with T. cruzi per occasion of nocturnal rest in nests (48) .…”

Section: Identifi Cation Of Trypanosoma Cruzimentioning

confidence: 99%

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

Santos

Jansen

Mourão

et al. 2015

Rev. Soc. Bras. Med. Trop.

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Introduction:The transmission cycle of Trypanosoma cruzi in the Brazilian Pantanal region has been studied during the last decade. Although considerable knowledge is available regarding the mammalian hosts infected by T. cruzi in this wetland, no studies have investigated its vectors in this region. This study aimed to investigate the presence of sylvatic triatomine species in different habitats of the Brazilian Pantanal region and to correlate their presence with the occurrences of vertebrate hosts and T. cruzi infection. Methods: The fi eldwork involved passive search by using light traps and Noireau traps and active search by visual inspection. The light traps were placed at fi ve selected points along forested areas for seven nights during each of the nine excursions. At each point where a light trap was set, eight Noireau traps were placed in palm trees and bromeliads. Results: In all, 88 triatomine bugs were collected: two and one individuals from light traps and Noireau traps, respectively; three from peridomestic areas; 23 in coati nests; and 59 in thornbird nests. In this study, active search in microhabitats showed higher effi ciency than passive search, since 95% of the triatomine bugs were caught in nests. Further, triatomine bugs were only found to be infected by T. cruzi in coati nests. Conclusions: Coati nests might act as a point of convergence and dispersion for triatomine bugs and mammal hosts infected by T. cruzi, thereby playing an important role in the sylvatic cycle of T. cruzi in the Pantanal region.

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Intraspecific, interspecific, and seasonal differences in the diet of three mid-sized carnivores in a large neotropical wetland

Cited by 57 publications

References 38 publications

Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

Camera traps as a tool for Carnivore conservation in a mosaic of Protected Areas in the Pantanal wetlands, Brazil

New records of three species of nematodes in Cerdocyon thous from the Brazilian Pantanal wetlands

Triatominae (Hemiptera, Reduviidae) in the Pantanal region: association with Trypanosoma cruzi, different habitats and vertebrate hosts

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