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| Cáceres,Nilton C.; Casella,Janaína; Vargas,Claudeir F.; Prates,Lucineia Z.; Tombini,Alam A. M.; Goulart,Charla S.; Lopes,Wellington H.. |
| Realizaram-se amostragens de pequenos mamíferos em duas bacias hidrográficas do Brasil central pertencentes aos rios Araguaia e Paraná com intuito de descrever a composição de espécies de pequenos mamíferos de hábito florestal e comparar suas distribuições geográficas. Quatorze pontos de coleta foram amostrados, subdivididos em oito na bacia do Rio Paraná e seis na bacia do Rio Araguaia. Foram registradas 20 espécies de pequenos mamíferos na região (oito de marsupiais e 12 de roedores), sendo 16 delas por meio de armadilhas metálicas (5.253 armadilhas-noite) e oito delas por meio de armadilhas de queda (224 baldes-noite), totalizando 161 capturas de 139 indivíduos. A bacia do Rio Paraná apresentou 16 espécies (armadilhas-noite: 3.115; baldes-noite: 104) e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacia do Araguaia; Bacia do Paraná; Pequenos mamíferos; Corredores florestais; Cerrado. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000200001 |
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| Melo,Geruza L.; Sponchiado,Jonas; Cáceres,Nilton C.. |
| In order to evaluate the efficiency of different mammalian survey methods, we compared traditional sampling techniques (use of camera-traps on roads and artificial trails, track censuses, and direct field visualization) with an alternative sampling design (camera-traps positioned in natural areas such as natural trails and shelters). We conducted the study in a deciduous Atlantic-Forest park in southern Brazil, and additionally compared our results with a previous intensive study carried out in the same area. Our considerably smaller sampling effort (example: 336 trap.day for our camera-traps versus 2,154 trap.day for the earlier study) registered the presence of 85% of the local known species, with camera-traps being 68% efficient. Moreover, shelter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Combined sampling; Diversity evaluation; Forest interior; Trapping effort. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000100012 |
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| Cáceres,Nilton C.; Hannibal,Wellington; Freitas,Dirceu R.; Silva,Edson L.; Roman,Cassiano; Casella,Janaina. |
| This paper examines the frequencies of mammal roadkill in two adjacent biogeographic ecoregions (Atlantic Forest and Cerrado) of Brazil. Mammals were recorded during a seven-year period and over 3,900 km of roads, in order to obtain data for frequencies of species in habitats (sites) and frequencies of species killed by cars on roads. Sites (n = 80) within ecoregions (Cerrado, n = 57; Atlantic Forest, n = 23) were searched for records of mammals. Species surveyed in the entire region totaled 33, belonging to nine orders and 16 families. In the Cerrado, 31 species were recorded in habitats; of these, 25 were found dead on roads. In the Atlantic Forest ecoregions, however, we found 21 species in habitats, 16 of which were also found dead on roads. There was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anteaters; Caviomorph rodents; Road mortality; Highway; Transitional vegetation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500007 |
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| Lima,Daniela O. de; Azambuja,Bethânia O.; Camilotti,Vagner L.; Cáceres,Nilton C.. |
| We investigated the richness, composition, and species relative abundance of a terrestrial small mammal community in a Deciduous Forest area in the austral boundary of the Atlantic Forest. The microhabitat use of the most common species was also investigated. Six rodents - Akodon montensis (Thomas, 1913), Oligoryzomys nigripes (Olfers, 1818), Sooretamys angouya (Thomas, 1913), Thaptomys nigrita (Lichtenstein, 1829), Mus musculus (Linnaeus, 1758) and Juliomys sp. - and one marsupial - Didelphis albiventris (Lund, 1840) - were captured. Thaptomys nigrita is recorded in the state of Rio Grande do Sul for the first time. Species richness was poor when compared with communities in the central portions of the Atlantic Forest, but equivalent to that found in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Akodon montensis; Decidual Forest; Oligoryzomys nigripes; Sooretamys angouya. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100015 |
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| Oliveira-Santos,Luiz Gustavo R.; Graipel,Maurício E.; Tortato,Marcos A.; Zucco,Carlos A.; Cáceres,Nilton C.; Goulart,Fernando V. B.. |
| We investigated the density and activity of the oncilla, Leopardus tigrinus (Schreber, 1775), a threatened small cat, in the Brazilian Atlantic Forest, using camera-trap data. We described differences in the activity of individuals occurring alone or in sympatry with larger cats. Oncilla presented low densities (7-13 ind./100 km²) and high flexibility in its activity. The oncillas were primarily nocturnal in the absence of other larger cat species - margay, ocelot and puma - but became more diurnal, with a cathemeral activity pattern, when the other cats were present. Oncilla is likely to be in a subordinate position in interactions with larger cats and changes its activity to decrease the chances for interspecific encounters. In this study, however, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Activity pattern; Camera trap; Intraguild competition; Little spotted cat; Neotropical felid guild. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000200003 |
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| Cáceres,Nilton C.. |
| In this paper 19 additional mammalian species are reported in the Atlantic forest of the Paranean Serra do Mar, southern Brazil, including threatened and rare species. These findings resulted from a one-year field research in the western slope of the Serra do Mar, Piraquara municipality, with additional review of reports about mammal distribution in the region. Preliminarily mammal richness in the region is round 54 species, but this number could be higher with more systematic surveys, particularly with regards to bats. The occurrence of the hog-nosed skunk, Conepatus chinga (Molina, 1782), is reported for the first time in the eastern portion of Paraná, a State vastly deforested during the last century in Brazil. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic forest; Conservation; First record; Mammalian species. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000300020 |
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| Cáceres,Nilton C.; Bornschein,Marcos R.; Lopes,Wellington H.; Percequillo,Alexandre R.. |
| We carried out a mammalian survey in the neighborhoods of the Serra da Bodoquena National Park, Mato Grosso do Sul state, a region poorly known in southwestern Brazil. During the months of April, May and July 2002 we used wire live trap, direct observation, indirect evidence (e.g. tracks), carcasses, and interviews with local residents to record mammalian species. Fifty six mammal species were recorded, including threatened species (14%). These records were discussed regarding species abundance, distribution, range extension, habitat, and conservation. The geographic distribution and ecology of the poorly known marsupials Thylamys macrurus and Micoureus constantiae in Brazil are emphasized. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian savanna; Deciduous forest; Distribution; Mammalia; Species richness. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000200021 |
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| Cáceres,Nilton C.. |
| The relative proportions of the digestive tract were rarely explored to understand the behaviour and the ecology of neotropical marsupials. In this study, proportions of the digestive tract and diet were compared in seven opossum species. The animals studied were Didelphis albiventris Lund, 1840, D. aurita Wied-Neuwied, 1826, Metachirus nudicaudatus (Desmarest, 1817), Philander frenatus (Olfers, 1818), Lutreolina crassicaudata Desmarest, 1804, Monodelphis sorex (Hensel, 1872) and Caluromys lanatus (Olfers, 1818). Segments of digestive tracts of marsupials were measured and differences were statistically tested by Analysis of Variance and Covariance. Caecum and hard guts were responsible for the main differences among opossums, although all segments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caecum; Caluromys lanatus; Digestive tract proportions; Hard gut; Metachirus nudicaudatus. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000100021 |
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