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Mostrando ítems 11-20 de 72
Invasive grasses and native Asteraceae in the Brazilian Cerrado
(SPRINGER, 2010)
Anthropogenic disturbances frequently modify natural disturbance regimes and foster the invasion and spread of nonindigenous species. However, there is some dispute about whether disturbance events or invasive plants ...
Response of benthic macroinvertebrates to gradients in hydrological connectivity: a comparison of temperate, subtropical, Mediterranean, and semiarid river floodplains
(Wiley, 2013-12)
1) Despite a general recognition that benthic macroinvertebrates respond to changes in hydrological connectivity within floodplain ecosystems, no consensus about patterns in community structure and ecosystem processes ...
Paleoecological dynamics of furongian (late cambrian) trilobite-dominated communities from northwestern Argentina
(Society for Sedimentary Geology, 2011-08-15)
The Cambrian–Ordovician boundary interval is a critical moment in the ecology of trilobite communities. To understand this transition, we studied—at three different spatial scales—changes in the structure of olenid-dominated ...
Spatial distribution and regeneration strategies of the main forest species on Robinson Crusoe Island
(Sociedad de Biología de Chile, 2010)
Neoarthropitys gondwanaensis gen. nov. et sp. nov. from the Middle Triassic of Gondwana: an intermediate stage in the anatomical trend of Equisetalean stems
(Elsevier Science, 2020-11)
A new petrified stem from the Middle Triassic Quebrada de los Fósiles Formation (Puesto Viejo Group, San Rafael Basin) in Mendoza Province, central-western Argentina, is described. The specimen shows affinities with fossil ...
Comunidades de Hemiptera: Heteroptera como indicadores de perturbación en bosque tropical caducifolio de la cuenca de Cuitzeo
(Universidad Michoacana de San Nicolás de Hidalgo, 2013-04)
In recent decades it has paid special attention to the explanation of the processes that determine the diversity of the communities, giving rise to debates about the importance of environmental and biological factors (Cody ...
Size diversity as an expression of phytoplankton community structure and the identification of its patterns on the scale of fjords and channels
(Elsevier, 2011-03-01)
Large microalgae, such as diatoms can generate high levels of biomass, unlike small phytoplankton components in the austral Fjords and estuarine systems of Chile. We propose a cell-size-based diversity index (H'(size)) ...