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| Registros recuperados: 25 | |
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| Gomes,Diego S.; Elizalde,Luciana; Queiroz,Jarbas M.. |
| Parasitoids of the endangered leafcutter ant Atta robusta Borgmeier in urban and natural areas. Hosts of parasitoids in urban areas may suffer from a double threat of habitat destruction by urbanization and parasitism pressure. Moreover, the parasitoids themselves might be at risk if they are specialists. Here, we studied whether Atta robusta (Hymenoptera, Formicidae), which is on the red list of Brazilian threatened species, suffers from higher parasitism pressure in an urban area compared to a natural one. In addition, we determined whether their specialist parasitoids, Eibesfeldtphora breviloba and Myrmosicarius exrobusta (Diptera, Phoridae), are in risk and evaluated whether they are influenced by habitat structure, temperature, humidity, ant traffic,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Insecta; Leafcutters; Restinga; Urban ecology. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300013 |
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| ALMEIDA-CORRÊA,Thais; FRAZÃO,Luciana; COSTA,Diogo Magalhães; MENIN,Marcelo; KAEFER,Igor Luis. |
| ABSTRACT The increasing urbanization of the Amazonian biome has promoted the creation of several forest fragments surrounded by an urban matrix, but the relationship of animal assemblages to the urban environment, especially in forest fragments, is poorly known. Here we aimed to 1) determine the composition of the squamate fauna of the largest urban forest fragment from central Amazonia, in the Brazilian city of Manaus, and 2) evaluate the influence of environmental parameters on assemblage diversity. We sampled 10 standardized riparian plots through visual search in six surveys between 2008/09 and 2015, totaling 360 observer-hours. We found 15 species of lacertoids (lizards and amphisbaenians) and seven species of snakes through active search. After... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphisbaenians; Edge effect; Lizards; Snakes; Urban ecology. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300239 |
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| Suárez-Cáceres,Gina Patrícia; Adinolfi,Cristiano; Sánchez,Francisco. |
| ABSTRACT Cities have grown throughout the Andes and we know little about the ecology of those species that tolerate them, limiting our options to do conservation. We applied optimal foraging theory to examine the behavior of the Andean White-eared Opossum (Didelphispernigra), in a suburban area in Bogotá, Colombia. We used the giving-up density technique, which uses the amount of food left in a feeding patch, to evaluate whether the opossum's foraging costs were affected by the height of food from the ground, and the quality and quantity of food. We also evaluated whether the spatial heterogeneity of the study site affected the opossum's foraging. We used an artificial feeding patch to test these ideas. When food was either concentrated and, in less amount... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andes; Giving-up density; Optimal patch use; Predation risk; Urban ecology. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300359 |
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| Oprea,Monik; Brito,Daniel; Vieira,Thiago Bernardi; Mendes,Poliana; Lopes,Sílvia Ramira; Fonseca,Ricardo Milanez; Coutinho,Rafael Zerbini; Ditchfield,Albert David. |
| Bats of the genus Artibeus are among the most important seed dispersers in early successional forests. We report observations on the foraging behavior of Artibeus lituratus in Pedra da Cebola Municipal Park, an urban park in the city of Vitória, Espírito Santo, southeastern Brazil. Observations were made during six consecutive days (April 1st to April 6th, 2006). Three mist-nets were opened each night close to a Maclura tinctoria tree (Moraceae), remaining open from 18:00 to 22:00, totaling four hours per night, and 24 hours of sampling effort. We observed two peaks of feeding activity at the tree, one between 18:20 and 19:30, and a second one at 21:00. This is the first observation of Artibeus lituratus feeding on M. tinctoria fruits, therefore adding a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bats; Frugivory; Maclura; Urban ecology. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200033 |
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| Registros recuperados: 25 | |
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