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| Marx,Michael Thomas; Wild,Anna-Katharina; Knollmann,Ulrich; Kamp,Günter; Wegener,Gerhard; Eisenbeis,Gerhard. |
| Standard ecological methods (pitfall traps, trunk eclectors and soil cores) were used to evaluate collembolan community responses to different flooding intensities. Three sites of a floodplain habitat near Mainz, Germany, with different flooding regimes were investigated. The structures of collembolan communities are markedly different depending on flooding intensity. Sites more affected by flooding are dominated by hygrophilic and hygrotolerant species, whereas the hardwood floodplain is dominated by mesophilic species. The survival strategies of the hygrophilic and hygrotolerant species include egg diapause and passive drifting. The physiological adaptations to hypoxic conditions of several collembolan species were analyzed using a microcalorimeter. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavioral adaptation; Ecological adaptation; Egg diapause; Inundation; Morphological adaptation; Physiological adaptation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800032 |
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| Sousa,Wesley Oliveira de; Marques,Marinêz Isaac; Rosado-Neto,Germano Henrique; Adis,Joachim. |
| The swimming behavior exhibited by specimens of L. fasciatus and O. uniformis was analyzed frame-by-frame with video observation recorded with a digital camera, attached to a stereomicroscope. Adults of O. uniformis, an aquatic insect, swim with all three pairs of legs. During the process of swimming the majority of the abdomen and rostrum remain submerged, part of the fore and hind tibiae remain above the surface, while the mid tibiae remain submerged. The mesothoracic legs, during the power-stroke stage, provide the greatest thrust while the metathoracic legs provide the least forward propulsion. The prothoracic legs, extended forward, help to direct the swimming. The semi-aquatic specie L. fasciatus shows the same swimming style as O. uniformis, that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic/semi-aquatic weevils; Behavioral adaptation; Central Amazonia; Pantanal Mato-grossense. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000100015 |
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