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| OLIVEIRA,MAURO C.L.M.; SANTOS,MAURICIO B. DOS; LOEBMANN,DANIEL; HARTMAN,ALEXANDRE; TOZETTI,ALEXANDRO M.. |
| This study aimed to verify the relationship between habitat and the composition of anuran species in dune and restinga habitats in southernmost Brazil. The habitats were sampled between April 2009 and March 2010 using pitfalls with drift fence. We have captured 13,508 individuals of 12 anuran species. Species richness was lower in the dunes and dominance was higher in the resting. Apparently the less complex plant cover, water availability, and wide daily thermal variation in dunes act as an environmental filter for frogs. This hypothesis is reinforced by the fact that the most abundant species (Physalaemus biligonigerus and Odonthoprynus maisuma) bury themselves in the sand, minimizing these environmental stresses. Despite being in the Pampa biome, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibia; Coastal dunes; Restinga; Niche. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200575 |
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| Santos,Mauricio Beux dos; Oliveira,Mauro Cesar Lamim Martins de; Gonçalves,Tatiane Penteado; Almeida,Francis de Mattos; Loebmann,Daniel; Tozetti,Alexandro Marques. |
| The loss and modification of habitats by humans have been considered key factors in the decline of diversity of species worldwide. However, the real effect caused by these disturbances on the biota is still poorly understood. The assessment of the changes in the network of interspecific interactions, such as predation rates on the native fauna, can be an important tool to diagnose the functionality of disturbed ecosystems. In this study we evaluate the predation rate on snakes in coastal grasslands in South America under human influence. Predation rate of artificial snakes, unlike that obtained in other studies, was lower in human-altered areas than preserved ones. Our findings may be due to a reduction in the abundance and/or richness of species of native... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reptiles; Coastal dunes; Human impact; Predation; Brazil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100039 |
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| Momade, F.; Achimo, M.. |
| The coastal region of Maputaland-Mozambique is characterised by an extensive lowlying coastal plain, which rises to a height of more than 100 metres in some places and attain a width of 2 kilometres. Maputaland in Mozambique extends from Ponta de Ouro, which borders South Africa to Cabo Santa Maria stretching for a distance over 100 kilometres, and encloses several swamps and coastal lakes such as Satine, Piti, Munde and Nela running in north south direction. The main objective of this study was to access the different categories of dune morphology in Maputaland- Mozambique by using aerial photographs, satellite images and field checking. Two major distinct dune systems on the Maputaland coastal morphology were mapped: (1) vegetated dunes form a coastal... |
| Tipo: Proceedings Paper |
Palavras-chave: Coastal dunes. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/349 |
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