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| Registros recuperados: 26 | |
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| Renner,Samuel; Périco,Eduardo; Ely,Gerson Júnior; Sahlén,Göran. |
| Abstract An inventory of Odonata was carried out in the southern half of the state of Rio Grande do Sul, Brazil, in the Pampa biome. Originally, this biogeographical region was covered mostly by open fields and grassland, with sections of higher vegetation surrounding water bodies and rocky hills. Today the landscape is fragmented due to agricultural activities, mainly cattle farming, rice crops and forest plantations. Our survey was conducted in three municipalities from this region, between March 2015 and April 2016. Aiming at a general overview of the species composition, our sampling sites were selected on a wide basis, including lakes, bogs, temporary water bodies, small streams and river sections. Eighty two species of Odonata were collected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthropogenic threats; Ecology; Grassland; Neotropics; Southern fields. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000400305 |
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| Tubelis,Dárius Pukenis. |
| In the Cerrado, veredas are linear physiognomies that occur on hydromorphic soil usually along narrow water courses. They often growth on flat terrain or near headwaters. They are characterised by the abundance of buriti palms (Mauritia flexuosa) that growth over other trees, numerous shrubs and a dense herbaceous stratum. Despite being common landscape elements through the Cerrado's extension, the use of veredas by birds has not been examined in detail. This study aimed to review studies of birds and veredas in the Cerrado. Publications (n = 25) reported the use of veredas by 261 bird species. Only 13 of them had aspects of their biology (reproduction and feeding) studied in detail. Veredas are poorly used by Cerrado's endemic species, but are the major... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grassland; Landscape; Mauritia; Savanna; Wetland. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300031 |
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| Bueno,Adriana de Arruda; Belentani,Sonia Cristina da Silva; Motta-Junior,José Carlos. |
| The feeding ecology of the maned wolf (Chrysocyon brachyurus) was studied from 1998 to 2002 in the Ecological Station of Itirapina, São Paulo State, southeastern Brazil, including estimates of prey number and biomass consumption. A total of 325 faecal samples was collected in the area. The species is omnivorous, with a broad diet including 68 species or morphospecies of fruits and animals. Armadillos (Dasypodidae), wolf's fruit (Solanum lycocarpum) and small mammals (mostly Clyomys bishopi) were the bulk of the diet, comprising 72.8 % of the total estimated biomass consumed (185,323.4 g). In terms of frequency of occurrence, on the other hand, only small mammals and other miscella-neous fruits yielded 43.4 % of the total occurrences (N = 1,054). Animal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chrysocyon brachyurus; Maned wolf; Savannah; Grassland; Feeding ecology; Diet; Brazil. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032002000200007 |
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| Alves,Gustavo Henrique Zaia; Santos,Regiane da Silva; Figueiredo,Bruno R. S.; Manetta,Gislaine Iachstel; Message,Hugo José; Pazianoto,Laryssa H. R.; Guimarães,Gilson Burigo; Benedito,Evanilde; Couto,Edivando Vitor do. |
| Abstract: The Devonian Escarpment (DEEPA), located in the south of Brazil, represents an important area of environmental preservation composed by grasslands, gallery forests, as well as rock outcrops and archaeological sites. A law project (LP 527/2016), which suggests a reduction of the DEEPA area in approximately 70% of its original area (from 393,579 to 125,895 ha), is currently being processed in the Paraná State House of Representatives. Such reduction seems to be related to economic interests (mainly agriculture and mining) in the state of Paraná. If approved, LP 527/2016 will allow farmers to deliberately expand their activities, with the suppression of natural forest as main consequence. Additionally, loss of faunal diversity, contamination of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental law; Grassland; Devonian Escarpment; Biodiversity loss; Geodiversity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000100401 |
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| Su,Yuan-Ying; Sun,Xin; Guo,Liang-Dong. |
| The seasonal change and host preference of arbuscular mycorrhizal (AM) colonization and community composition of five common plant species Agropyron cristatum, Anemarrhena asphodeloides, Cleistogenes squarrosa, Leymus chinensis, and Stipa grandis in the Inner Mongolia steppe were investigated. The AM root length colonization rates were different among the five plant species and were generally high in early (May and June) and late (September) growth seasons and low in August. A total of 18 AM fungal species representing five genera were isolated from rhizosphere soils of the five plant species, and most AM fungi had not host specificity, except that Acaulospora sp., Glomus constrictum, G. diaphanum and Glomus sp. showed a certain degree of host preference.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seasonal dynamics; Arbuscular mycorrhizal fungi; Diversity; Grassland. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100008 |
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| Registros recuperados: 26 | |
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