Home range, movements and diurnal roosts of the endangered thin-spined porcupine, Chaetomys subspinosus (Rodentia: Erethizontidae), in the Brazilian Atlantic Forest

Oliveira, P. A.; Lima, Rodrigo B. Souto; Chiarello, Adriano Garcia

doi:10.1016/j.mambio.2011.09.005

Cited by 11 publications

(15 citation statements)

References 27 publications

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“…A similar pattern was also documented for the HRs of several mammals (Harestad and Bunnel 1979;Mace and Harvey 1983;Fernandes et al 2010;Oliveira et al 2012). As bigger animals demand more resources, they need to explore larger areas to find them (Harestad and Bunnel 1979).…”

Section: Discussionsupporting

confidence: 72%

Spatial patterns of the semi-aquatic rodentNectomys squamipesin Atlantic forest streams

Lima

Pinho

Fernandez

2015

Journal of Natural History

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Nectomys squamipes is a semi-aquatic rodent with a wide geographic range in Brazilian forests and savannas. This species is a host for several parasites associated with aquatic environments, especially Schistosoma mansoni, and thus its spatial pattern may influence some diseases' patterns. Here we present important aspects of water rat spatial behaviour, including technical and ecological aspects. Water rats were studied by live trapping in rivers and in gallery forests between January 2005 and August 2008, with a total sampling effort of 9511 trap-nights. We also studied some animals through radio tracking and the spool-and-line technique. Water rat movement was distributed evenly between the terrestrial and aquatic environments. Nectomys squamipes occurrence in small tributaries was higher than in larger and lotic rivers. Both home range, the conventional two-dimensional approach, and home length, a one-dimensional approach, proved to be useful to study N. squamipes, depending on the shape of the water body used by the individual. Although Nectomys squamipes' home length was positively correlated with body weight, sex was also important to explain home length variation; at similar body weights, males have larger home lengths than females. Males explored larger areas during the rainy season, likely in search of females, as this is the water rat reproductive season in Atlantic forest. In contrast, females explored larger areas during the dry season, likely looking for additional food supplies as a result of deficient water rat food supplies during the Atlantic forest dry season. Females overlapped home lengths with more than one male, and males with more than one female, suggesting a promiscuous mating system for this species. ARTICLE HISTORY

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Section: Discussionsupporting

confidence: 72%

Spatial patterns of the semi-aquatic rodentNectomys squamipesin Atlantic forest streams

Lima

Pinho

Fernandez

2015

Journal of Natural History

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“…This species is listed as vulnerable to extinction (International Union for the Conservation of Nature 2014) due mainly to high levels of deforestation and consequent loss of habitat in its species range. The thin-spined porcupine lives in the Atlantic Forest of Brazil (Santos et al 1987;Oliveira et al 2012), a biome highly disturbed by human settlement (Ribeiro et al 2009).…”

Section: Introductionmentioning

confidence: 99%

“…This medium-sized (1.3-2.7 kg) rodent species (Chiarello et al 1997;Oliveira et al 2012) is nocturnal, arboreal and folivorous (De Souto Lima et al 2010;Giné et al 2010;Giné et al 2012;Oliveira et al 2012). It is also opportunistically hunted by local people mainly for the meat (Castilho et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Microscopy and development of a remarkable pitted quill from the thin-spined porcupine,Chaetomyssubspinosus

2019

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Scanning electron microscopy shows that the quill surface from the thin-spined porcupine (Chaetomys subspinosus (Olfers, 1818)) has several regional cuticular patterns of which the most expansive is highly pitted with 4 μm wide pores leading to pits, which in turn communicate circumferentially via tunnels to neighboring pits. The cell unit of the pitted layer is a hexagonal or pentagonal prism, the “pitted fibrillous cuticular cell” (PFCC), which has a superficial pitted cuticular scale derived part with an underlying part packed with fine fibrils and the nucleus. The scaled part has about six scales, which swell and fuse except where raised cuticular scales from the inner root sheath intervene. This unique and complicated cell soon dies even while below the skin’s surface during its development. The raised scale-bearing cells of the inner root sheath leave their imprints on the PFCC’s surface, thus indicating that the quill’s pitted layer is at one time soft. Histochemistry, energy dispersive X-ray spectrometry, and Fourier transform infrared spectrometry show that the PFCC is keratinous.

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“…One such species is the thin-spined porcupine (Chaetomys subspinosus), the only New World porcupine (Rodentia: Erethizontidae) considered threatened by the International Union for Conservation of Nature (IUCN 2014). It is a monotypic species (Vilela et al 2009;Voss et al 2013), weighing 1.5-2.0 kg with nocturnal and arboreal habits (Chiarello et al 1997;Giné et al 2012;Oliveira et al 2012). The species is probably the most folivorous among the erethizontids studied to date (Giné et al 2010;de Souto Lima et al 2010).…”

mentioning

confidence: 99%

“…Earlier studies on space and habitat use by the thin-spined porcupine focused on home-range size, daily displacement, and use of resources such as substrates, diurnal shelters, latrines, and foods (Chiarello et al 1997;de Souto Lima et al 2010;Giné et al 2010;Zortéa and de Brito 2010;Giné et al 2012;Oliveira et al 2012). So far, no published studies have evaluated habitat selection, and most provide only general habitat descriptions.…”

mentioning

confidence: 99%

Home range and multiscale habitat selection of threatened thin-spined porcupine in the Brazilian Atlantic Forest

Giné¹,

Barros

Duarte³

et al. 2015

JMAMMAL

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The threatened and poorly known thin-spined porcupine (Chaetomys subspinosus) is endemic to the highly deforested central portion of the Atlantic Forest of eastern Brazil. In southern Bahia, anecdotal observations suggested that native forest and shade cacao (Theobroma cacao) plantations are important habitats for this species. However, no studies have examined habitat preferences. We estimated the home-range size and determined the factors influencing habitat selection at landscape, home range, and tree scales in the cacao-growing region of southern Bahia. Radiotelemetry data from 21 individuals followed for 3-25 months from April 2005 to November 2013 showed a relatively small home range (0.5-9.5 ha using minimum convex polygon methods), with males showing larger home ranges than females. Habitat selection was congruent across spatial scales, with preference for structurally complex environments at all scales. The tagged porcupines preferred trees that were large, harboring many lianas, and closer to forest limits. Tree selection was specific for each animal activity. On landscape and home-range scales, they preferred secondary forest and avoided structurally simplified, highly disturbed vegetation types such as shade cacao and rubber plantations, early secondary forest, and open areas. All these man-modified habitats were rarely used, if at all, which considerably reduces the suitable habitat within the core distribution area and profoundly impacts conservation. O ouriço-preto Chaetomys subspinosus é uma espécie endêmica e pouco conhecida da porção central da Mata Atlântica, leste do Brasil, hoje altamente desmatada. No sul da Bahia, observações anedóticas sugerem que florestas nativas e plantações sombreadas de cacau (Theobroma cacao) são importantes habitats para esta espécie. Não existe estudo, entretanto, sobre as preferências de habitat desta espécie. Nós estimamos o tamanho da área de vida e determinamos os fatores que influenciam a seleção de habitat pelo ouriço-preto em nível de paisagem, área de vida e árvore na região cacaueira do sul da Bahia. Nós analisamos dados obtidos por radiotelemetria de 21 indivíduos seguidos durante três a 25 meses de Abril 2005 a Novembro 2013. Os animais apresentaram relativamente pequena área de vida (0,5 a 9,5 ha, usando o método mínimo polígono convexo) com machos apresentando maior tamanho de área de vida do que fêmea. A seleção do habitat foi congruente através das escalas espaciais, com preferência para ambientes estruturalmente complexos em todas as escalas. Em nível de árvore, os ouriços marcados preferiram grandes árvores, árvores com muitas lianas e árvores mais próximas aos limites do fragmento florestal. A seleção de árvores foi específica para cada atividade animal e nós oferecemos detalhes. Para ambas as escalas, paisagem e área de vida, eles preferiram florestas secundárias avançadas, enquanto evitaram ou não preferiram tipos de vegetação simplificados e altamente alterados tais como plantações sombreados de cacau e seringas, florestas secundárias iniciais ...

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Home range, movements and diurnal roosts of the endangered thin-spined porcupine, Chaetomys subspinosus (Rodentia: Erethizontidae), in the Brazilian Atlantic Forest

Cited by 11 publications

References 27 publications

Spatial patterns of the semi-aquatic rodentNectomys squamipesin Atlantic forest streams

Spatial patterns of the semi-aquatic rodentNectomys squamipesin Atlantic forest streams

Microscopy and development of a remarkable pitted quill from the thin-spined porcupine,Chaetomyssubspinosus

Home range and multiscale habitat selection of threatened thin-spined porcupine in the Brazilian Atlantic Forest

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