Habitat selection by large mammals in a southern Brazilian Atlantic Forest

Goulart, Fernando Vilas Boas; Cáceres, Nilton C.; Graipel, Maurício Eduardo; Tortato, Marcos Adriano; Ghizoni, Ivo Rohling; Oliveira‐Santos, Luiz Gustavo Rodrigues

doi:10.1016/j.mambio.2009.02.006

Cited by 96 publications

(86 citation statements)

References 32 publications

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“…In addition, for L. wiedii, trail characteristics -which were more open, wide and managed than the preferred by the species --could have contributed to this result (Goulart et al 2009). For H. hydrochaeris the absence of favorable habitats in the trails -as swampy areas -could explain why this species was not detected in this study (Ferraz et al 2006).…”

Section: Discussionmentioning

confidence: 86%

“…Traps were active during 24 h.day -1 with an interval of 1 min between shots. Each picture was considered a record of occurrence; for a same species independent records where those who had at least an hour of interval among each other (Di Bitetti et al 2006, Tobler et al 2008, Goulart et al 2009, Espartosa et al 2011.…”

Section: Data Collectionmentioning

confidence: 99%

“…The difficulties related to the study of these animals are due to their furtive habits (Reis et al 2006, Barea-Azcó n et al 2007, and habitat requirements (Sanderson et al 2002b, BareaAzcó n et al 2007 Goulart et al 2009, Carvalho et al 2013, and their combined use with other sampling techniques as footprint traps, linear transects and sign surveys (Passamani et al 2005, Negrã o & Valladares-Pá dua 2006, Spínola 2008, Modesto et al 2008a, Silva & Passamani, 2009, Espartosa et al 2011, Delciellos et al 2012) have favored studies with this group. However, due to be a recent approach, several areas still represents knowledge gaps for this group, especially in the Rio de Janeiro state (Cunha 2004, Modesto et al 2008a,b, Delciellos et al 2012.…”

Section: Introductionmentioning

confidence: 99%

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Medium and large-sized mammals of the Reserva Ecológica de Guapiaçú, Cachoeiras de Macacu, RJ

2014

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Medium and large-sized terrestrial mammals develop important functions in ecosystems maintenance. However, this group is the most vulnerable to local extinctions, through habitat loss or hunting. This study inventoried the community of medium and large mammals in the Reserva Ecológica de Guapiaçú (REGUA), Cachoeiras de Macacu, RJ, providing data on species composition, richness and abundance. Species were registered through the use of camera traps, sign survey and visual encounters on pre-existing trails and roads. The study was conducted from January to October 2012, with each month considered as a sample unit. An effort of 1568 cameras-day and 120 km traveled, resulted on 302 records of 22 species of medium and large-sized mammals, belonging to eight orders. This value corresponds to more than three-quarters of the richness described from this group in the Atlantic Forest of Rio de Janeiro state. Five species are under some level of regional, national or global threat. Three game species, Pecari tajacu, Cuniculus paca and Dasyprocta leporina were abundant in the area. The observed richness was comparable to that found in other studies conducted in rain forests. Thus, for its high number of species, including those under some degree of threat, we conclude that REGUA is an important area to mammal conservation, especially in the Atlantic Forest of Rio de Janeiro state.

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Section: Discussionmentioning

confidence: 86%

Section: Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Medium and large-sized mammals of the Reserva Ecológica de Guapiaçú, Cachoeiras de Macacu, RJ

2014

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“…On the other hand, distance from the nearest road explained better the detection of wild cats. This result is expected since felids, in general, have been detected preferentially along unpaved roads, while species such as P. tajacu avoid roads and have been recorded with higher frequency in forest interiors (Trolle & Kéry 2005, Goulart et al 2009, Srbek-Araujo & Chiarello 2013). Moreover, although we did not assess the relative impact of poaching, the collared peccary is a traditional target in Brazil (Cullen et al 2000), and it might also be disturbed by domestic dogs (Canis familiaris), present in human settlements that are common outside protected areas.…”

Section: Discussionmentioning

confidence: 91%

Buffer zone use by mammals in a Cerrado protected area

et al. 2016

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Habitat loss and degradation is threatening mammals worldwide. Therefore, Protected Areas (PA) are of utmost importance to preserve biodiversity. Their effectiveness, however, depends on some management strategies such as buffer zones, which prevent/mitigate the impact of external threats and might increase the amount of available habitat for wildlife existing within reserves. Nevertheless, how intensively terrestrial mammals use buffer zones remains little studied, particularly in the Neotropical region. Aiming to analyse the use of a buffer zone (5 km wide) by medium and large-sized mammals, we modelled the occupancy probabilities of five species of conservation concern including local (interior and buffer zone) as a site covariate, simultaneously controlling for imperfect detection. Data collection was made with camera traps from April to September 2013 in a 9000 ha Cerrado PA (“interior”) and in its surrounding area (39721.41 ha; “buffer zone”). This PA (Jataí Ecological Station) is immersed in a landscape where sugarcane plantations predominate in the northeastern of the state of São Paulo. We also conducted an inventory to compare the number and composition of species between interior and buffer zone. A total of 31 mammal species (26 natives) was recorded via camera traps and active search for sightings, vocalizations, tracks and signs. Occupancy estimates for Myrmecophaga tridactyla, Leopardus pardalis and Pecari tajacu were numerically higher in interior. On the other hand, Chrysocyon brachyurus had the highest occupancy in buffer zone, while the largest predator, Puma concolor, used both areas similarly. However, as the confidence intervals (95%) overlapped, the differences in occupancy probabilities between interior and buffer were weak for all these species. Additionally, regarding only the species recorded by cameras, the observed and estimated richness were similar between interior and buffer zone of the PA. Our data demonstrated that the buffer zone is indeed used by medium and large-sized mammals, including conservation-dependent ones. The lack of enforcement of current legislation regarding buffer zones is therefore a real threat for mammals, even when protection is guaranteed in the interior of protected areas.

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“…A detailed description of the study areas and sampling method is available in Goulart et al (2009). We compared the distribution of the circadian activity pattern of spotted and melanistic morphs using Watson's U 2 Test for circular data, using the Oriana 3.0 software.…”

Section: Methodsmentioning

confidence: 99%

The role of melanism in oncillas on the temporal segregation of nocturnal activity

et al. 2014

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The occurrence of coat colour polymorphisms in populations may promote the ecological success of species by permitting a wider spectrum of use of different subsets of available resources. We conducted an analysis of temporal segregation by comparing night brightness with nocturnal activity of spotted and melanistic oncillas (Leopardus tigrinus). Melanistic oncillas were more active during bright nights and spotted oncillas and other species were more active during dark nights. Each colour morph occupied a temporal niche outside the confidence interval of the other colour morph, demonstrating the ecological significance of polymorphic colour patterns in this felid species.Keywords: Leopardus tigrinus, activity, moonlight, camera trap. O papel do melanismo na segregação temporal da atividade noturna do gato-do-mato-pequeno ResumoA ocorrência de polimorfismo no padrão de pelagem de populações pode promover o sucesso ecológico das espécies por permitir um amplo espectro de uso de diferentes parcelas de recursos disponíveis. Nós testamos a existência de diferença na segregação temporal do gato-do-mato-pequeno (Leopardus tigrinus), comparando a luminosidade durante períodos de atividade noturna de indivíduos pintados e melânicos. Indivíduos melânicos de gato-do-mato-pequeno foram mais ativos durante noites claras e indivíduos pintados de gato-do-mato-pequeno e outras espécies foram mais ativas durante noites escuras. Cada forma de coloração ocupou um nicho temporal fora do intervalo de confiança do outro, demonstrando a significância ecológica dos padrões de polimorfismo de colorações nesta espécie de felino.Palavras-chave: Leopardus tigrinus, atividade, luminosidade da lua, armadilha fotográfica.

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Habitat selection by large mammals in a southern Brazilian Atlantic Forest

Cited by 96 publications

References 32 publications

Medium and large-sized mammals of the Reserva Ecológica de Guapiaçú, Cachoeiras de Macacu, RJ

Medium and large-sized mammals of the Reserva Ecológica de Guapiaçú, Cachoeiras de Macacu, RJ

Buffer zone use by mammals in a Cerrado protected area

The role of melanism in oncillas on the temporal segregation of nocturnal activity

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