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Registros recuperados: 63
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Butterflies (Lepidoptera: Hesperioidea and Papilionoidea) of Porto Mauá, Upper Paraná Atlantic Forest Ecoregion, Rio Grande do Sul State, Brazil Biota Neotropica
Thiele,Sabrina Campos; Milcharek,Oscar; Santos,Fábio Luis dos; Kaminski,Lucas Augusto.
This paper presents a list of species of butterflies (Lepidoptera: Hesperioidea and Papilionoidea) sampled in Porto Mauá municipality (27°34’S, 28°40’W), Rio Grande do Sul State, Brazil. Sampling was carried out monthly between March 2008 and March 2009. After 204 net-hours of sampling effort, a total of 1,993 individuals from 253 species were recorded. With a single additional expedition, eight new species were added, reaching a total of 261 species recorded in the region of Porto Mauá. These new reports and the species accumulation curves may indicate a much richer fauna. The distribution of richness among butterfly families is compared with other inventories in seasonal semi-deciduous forest areas in the Atlantic Forest. We also discuss the importance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Connectivity; Conservation; Seasonal semi-deciduous forest; Species richness.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000200211
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Fragment edge and isolation affect the food web: effects on the strength of interactions among trophic guilds Biota Neotropica
Melo,Michele Molina; Silva,Cristina Magalhães; Barbosa,Carina Santos; Morais,Maristela Calvente; D'Anunciação,Paula Eveline Ribeiro; Silva,Vinícius Xavier da; Hasui,Érica.
Abstract Habitat loss and fragmentation are processes that may affect communities by changing species interactions. These changes occur because the strength of linkages between species is not exclusively dependent on predator and prey traits. Species interaction changes also depend on the spatial context in which they take place. We used structural equation modelling to evaluate effects of these processes at patch-scale on top-down and bottom-up controls in food webs in Atlantic Forest. The model was composed of multiple species, and trophic guilds responded differently to fragment edge and isolation. Changes in bottom-up and top-down controls were mainly related to intermediate predator interactions. Efforts to restore connectivity among fragments should...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Bird; Brazil; Connectivity; Landscape; Mammal; Patch-scale; Patch size; Predator-prey interaction; Trophic cascade.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200209
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Seasonal fluctuation of some limnological variables on a floodplain lake (Patos lagoon) of the Upper Paraná River, Mato Grosso do Sul State, Brazil BABT
Rodrigues,Luzia Cleide; Train,Sueli; Roberto,Maria do Carmo; Pagioro,Thomaz Aurélio.
Temporal variations of some limnological variables in limnetic and littoral regions of Patos lagoon, a "várzea" lake on the floodplain of the Upper Paraná River (22(0) 43'12"S e 53(0) 17'37"W), were studied in relation to hydrological and climatological factors. Measurements of water temperature, euphotic zone, suspended material, electrical conductivity, total alkalinity, pH, dissolved oxygen, carbon dioxide, total nitrogen, total Kjeldahl nitrogen, total phosphorus, dissolved phosphorus, reactive soluble phosphorus and chlorophyll a were taken monthly between March 1993 and February 1994. Results lend evidence to the importance of the hydrological regime on the dynamic of limnological variables in floodplain lakes. A dilution of nutrients in the lagoon,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Limnological variables; Flood pulse; Floodplain; Paraná River; Connectivity; Nutrients.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000600014
Registros recuperados: 63
Primeira ... 1234 ... Última
 

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