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| Doutel-Ribas,Cynthia; Martins,Fernando Ibanez; Campos,Zilca; Piovezan,Ubiratan; Tomas,Walfrido; Silva,Virgínia Santiago; Pellegrin,Aiesca; Mourão,Guilherme. |
| Abstract: The objective of this work was to estimate an index of the relative biomass per species, in a medium to large-sized mammal community, as well as to determine how the introduced wild boar (Sus scrofa) fits into this index, and to verify if the occupancy of sites by domestic dogs interferes with those of wild boars and how much the periods of dogs’ activity overlap those of wild boars. The biomass/effort index was measured for each native mammal species and for the introduced wild boar, in two surveyed farms in Brazil’s Western Atlantic Forest range, through the use of camera trappings that were also used to verify if dogs and wild boar overlap in space and activity time. Wild boars seem to dominate the community, just a few years after their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canis familiaris; Sus scrofa; Activity time; Community composition; Niche overlap. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104100 |
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| Mourão,Guilherme; Tomas,Walfrido; Campos,Zilca. |
| The jabiru stork, Jabiru mycteria (Lichtenstein, 1819), a large, long-legged wading bird occurring in lowland wetlands from southern Mexico to northern Argentina, is considered endangered in a large portion of its distribution range. We conducted aerial surveys to estimate the number of jabiru active nests in the Brazilian Pantanal (140,000 km²) in September of 1991-1993, 1998, 2000-2002, and 2004. Corrected densities of active nests were regressed against the annual hydrologic index (AHI), an index of flood extension in the Pantanal based on the water level of the Paraguay River. Annual nest density was a non-linear function of the AHI, modeled by the equation 6.5 · 10-8 · AHI1.99 (corrected r² = 0.72, n = 7). We applied this model to the AHI between 1900... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flood; Jabiru nesting; Jabiru mycteria; Neotropical wetlands; Pantanal. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500012 |
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