[PDF] Top 20 Influence of a breakwater on nearby rocky intertidal community structure

... sampling of mature assemblages was done by means of 10 random quadrats (25  25 cm) located at least 1 m apart at the lower algal domi- nated shore ...times of the year (July 2006, October 2006, ... See full document

... band of the substrate called Littoral Fringe ...feature of the upper zone in intertidal rocky shores (Little and Kitching, 1996; Boaden and Seed, ...coverage of grazing gastropods, ... See full document

... density of an important community-structuring predator in other regions did not influence community structure in south- ern ...in community structure. Further studies to ... See full document

... published on the prevailing zonation patterns (see Neto 2000a, ...developed on the structure of those communities (Neto 1991, 1992, 2000a, 2000b), but no detailed study was done concern- ing ... See full document

... number of studies that density dependent processes can regulate the abundance of limpet populations (see Branch, 1981; Hawkins & Hartnoll, 1983; Underwood, 1992 for a ...range of habitat occupied ... See full document

... function of their communities, and have disproportionately large, inimitable impacts on their ecosystems by performing essential ecological functions” (Hale & Koprowski, ...top-down influence ... See full document

... seaweed community features on the shores here described and those described by Woolsey and Wilkinson (2007), on a shore affected by acid mine drainage in the ...studies, intertidal communities ... See full document

... (40%) of the fish observed were carnivores, the proportion of trophic categories remained similar between the depth strata (Figure 4) (very similar to the results of Harmelin-Vivien et ...species ... See full document

... drivers of spatial distribution patterns of intertidal rocky ...assemblages. Of those, five are considered ‘‘natural’’ variables, and only one (inorganic pollution index) was directly ... See full document

... end of the first ...abundance of some species did ex- hibit significant differences in this ...species of gastropods were sig- nificantly correlated with the ...upper intertidal level ... See full document

... high-mid intertidal zones subjects these species to a greater variety of environmental stresses that may generate selective gradients along latitudinal ...work on allozyme variation has shown the ... See full document

... research on the study of habitat ...be of relevance to a range of other patchy habitats, including marine protected areas, seamounts, and freshwater ...based on MacArthur & Wilson ... See full document

... Removal of particular species may lead to changes in assemblage composition and structure in a variety of marine environments ...depending on the identity of the species lost. ... See full document

... temperature of each area is shown in Figure ...shore of Costa beach had an inclination of 30°, whereas the other sites had inclinations of ... See full document

... We need to emphasize, however, that any compari� sons between the studied strata should be made with caution because we used two different methods to sample spiders —pitfall traps and a sweep net. These methods differ ... See full document

... greater influence of cur- rents and their turbulence, caused by winds, in the resuspension of the sediment, especially in the areas impacted by the bauxite tailings, causing higher values of ... See full document

... position of cercariae in the water column is not only dependent on phototaxis, but rely as well on other exogenous cues, for example geotactic behaviour, ...response of the organism to the ... See full document

... based on material collected at an unspecified locality in Rio de Janeiro State (syntype deposited in the National History Museum of the United Kingdom - ...record of P. varians for Ilha Grande Bay ... See full document

... importance of small tributaries in maintaining biodiversity, allowing the reproduction, spawning and development of fish eggs and larvae (Pavanelli & Caramaschi, 1997; Nakatani et ...stock of the ... See full document

... parts of isotherms coincide, and volumes of constant C, a m , monolayer capacity and ω differ ...increase of equilibrium pressure of adsorbate beginning with ~0,4 p/p o , the differences in ... See full document