Input Richness
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Influence of substrate on the richness and composition of Neotropical cave fauna
ABSTRACT The food base in the subterranean environment consists mainly of allochthonous materials. In this environment the resources are distributed generally in a heterogeneous dispersed way and the distribution of resources and their availability determine where the terrestrial invertebrates will reside, which is important for understanding ecological rela
An. Acad. Bras. Ciênc.. Publicado em: 31/08/2017
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2. Effects of forest conversion on the assemblages' structure of aquatic insects in subtropical regions
The effects of forest conversion to agricultural land uses on assemblages of aquatic insects were analyzed in subtropical streams. Organisms and environmental variables were collected in six low-order streams: three streams located in a forested area, and three in areas converted to agricultural land uses. We expected that the aquatic insects' assemblage att
Rev. Bras. entomol.. Publicado em: 2015-03
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3. Identification and the information matrix : how to get just sufficiently rich?
In prediction error identification, the information matrix plays a central role. Specifically, when the system is in the model set, the covariance matrix of the parameter estimates converges asymptotically, up to a scaling factor, to the inverse of the information matrix. The existence of a finite covariance matrix thus depends on the positive definiteness o
Publicado em: 2011
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4. Evaluation of water quality of an urban stream in southeastern Brazil using Chironomidae larvae (Insecta: Diptera)
In order to estimate the water quality of São Pedro stream, through distribution and composition of Chironomidae larvae present in the sediment four sampling sites were selected. In each sampling site, three sediment samples were collected within a period of twelve months using the Petersen (0.0189 m²) and the van Veen (0.0518 m²) dredges. Samples were wa
Neotropical Entomology. Publicado em: 2010-12
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5. Study of the assemblage of macroinvertebrates in streams of Mata Atlântica, using the isotope technique of delta13C e delta15N / Estudo da assembléia de macroinvertebrados em riachos da Mata Atlântica, utilizando a técnica isotópica de delta13C e delta15N
Several studies show a strong influence of terrestrial environment on streams contained therein. On headwater streams that influence is not just related to chemical and physical variables, but also is directly linked to what the stream metabolism, regulating the direct input of nutrients in the form of litter and particulate matter and internal productivity
Publicado em: 2010
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6. Avaliação da funcionalidade do solo em sistemas florestais enriquecidos com leguminosas. / Evaluation of soil functionality in forest systems enriched with leguminous trees.
The study was conducted in an area of abandoned pasture, originally under the cover of the Atlantic Forest, to evaluate the process of succession and restoration of degraded areas. The area was located in Valença municipality, State of Rio de Janeiro Brazil. In 2001 it was conducted a planting of nitrogen fixing leguminous trees in different proportions: 0%
Publicado em: 2009
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7. COMUNIDADE ZOOPLANCTÔNICA DE CINCO RESERVATÓRIOS TROPICAIS DO SISTEMA FURNAS S.A. (BRASIL): ABUNDÂNCIA E BIOMASSA EM CARBONO / COMUNIDADE ZOOPLANCTÔNICA DE CINCO RESERVATÓRIOS TROPICAIS DO SISTEMA FURNAS S.A. (BRASIL): ABUNDÂNCIA E BIOMASSA EM CARBONO
Gases generation, as contributor to the greenhouse, inside reservoirs it is one of the possible impacts caused for these systems to environment. Inside reservoirs, the zooplankton community had constituted one source of carbon so that this community would be also under influence of other physical, chemical and biological factors associated with morphometric
Publicado em: 2007
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8. Diversidade de rizóbios em Florestas de Araucária no Estado de São Paulo / Rhizobia diversity in Araucaria Forests in São Paulo State, Brazil
Araucaria angustifolia (B.) Ktz has a great social, environmental and economic importance to south and southeastern Brazil, although ecosystems supporting this species have been degraded by human activity, making it an endangered species. The nitrogen cycle has vital importance for life and has a special role in the development and upkeep of forests. The nit
Publicado em: 2007
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9. Distribuição longitudinal de adultos de Odonata em riachos no Cerrado: uma hipótese ecofisiológica / Longitudinal distribution of adult Odonata in Cerrado streams: an ecophysiologic hypothesis
The longitudinal distribution of adult Odonata was examined in streams of different channel width in the Pindaíba River Basin, in the municipalities of Barra do Garças and Nova Xavantina. The general purpose was to evaluate the existence of environmental gradients that affect the longitudinal distribution of Odonata, and to establish testable predictions t
Publicado em: 2006
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10. SANDY BEACH MORPHODYNAMICS AND MACROBENTHIC COMMUNITIES IN TEMPERATE, SUBTROPICAL AND TROPICAL REGIONS - A MACROECOLOGICAL APPROACH
A comprehensive study involving 52 microtidal beaches spanning from reflective to dissipative states and located in tropical, subtropical and temperate regions in the Atlantic, Pacific and Indian oceans was carried out to unravel the relative roles of latitude and beach morphodynamics in determining beach macrobenthic species richness, abundance, biomass and
Publicado em: 2003
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11. Influencia da variação fisionomica da vegetação sobre a composição de aves frugivoras na Mata Atlantica
Due to the alarming rate of deforestation in tropical forests, a better understanding on the organization of biological communities is needed, specifically regarding the interactions between birds and plants. Although this aspect is not often included among the top priorities for biodiversity conservation, it must be considered an important of effort in the
Publicado em: 2002
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12. Impact of Land Use Intensity on the Species Diversity of Arbuscular Mycorrhizal Fungi in Agroecosystems of Central Europe
The impact of land use intensity on the diversity of arbuscular mycorrhizal fungi (AMF) was investigated at eight sites in the “three-country corner” of France, Germany, and Switzerland. Three sites were low-input, species-rich grasslands. Two sites represented low- to moderate-input farming with a 7-year crop rotation, and three sites represented high-i
American Society for Microbiology.