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PERSPECTIVES This section of the journal is for the expression of new ideas, points of view, and comments on topics of interest to benthologists. The editorial board invites new and original papers as well as comments on items already published in J-NABS. Format and style may be less formal than conventional research papers; massive data sets are not(More)
Southeastern Australia is presently experiencing one of the worst droughts observed in the region in the last 200 years. The consequences of drought have been far reaching both for human consumptive uses and for aquatic ecosystems, and serve to highlight several important aspects of the nature of droughts, their ecological impacts, and how humans respond to(More)
Schoenly and Reid (1987) analyzed eleven sets of data on the temporal changes in arthropod community composition on carcasses to ascertain whether invertebrate succession on carrion proceeded " . . . as a sequence of discrete faunal seres, or as a continuum of gradual changes . . . " (Schoenly and Reid 1987:193). Parenthetically, we consider that the term(More)
Habitat structure has pervasive effects on community composition and diversity, with physically complex habitats often containing more species than physically simple ones. What factors or mechanism drive this pattern is little understood, but a complicating problem is that different sources of habitat structure can be confounded in both surveys and(More)
Biological invasions are regarded as a major threat to native ecosystems, yet studies investigating the interactions of invaders with native biota under field conditions are rare. Whilst many invaders are present only in low densities, it is often the effects of high densities that are of particular concern. We manipulated densities of the invading New(More)
Temporal changes in coarse (> 1 mm), fine (< 1 mm, > 250 μm), and woody benthic organic matter (BOM), and densities of detritivores in pools and riffles were monitored at three sites on two intermittent streams (Werribee and Lerderderg Rivers) in Victoria, Australia during a drought year followed by a wetter year. Standing stocks of BOM peaked in both(More)
1. Increasingly, river managers are turning from hard engineering solutions to ecologically based restoration activities in order to improve degraded waterways. River restoration projects aim to maintain or increase ecosystem goods and services while protecting downstream and coastal ecosystems. There is growing interest in applying river restoration(More)
Evaluations of the potential distribution of invasive species can increase the efficiency of their management by focusing prevention measures. Generally, ecological models are built using occurrence data from a species' native range to predict the distribution in areas that the species may invade. However, historical and geographical constraints can limit a(More)
Litter processing by macroinvertebrates typically involves suites of species that act together to determine rates of breakdown and decomposition. However, tropical oceanic islands and coastal fringes on continents are often dominated by one or a few species of omnivorous land crabs that consume leaf litter. We used an exclusion experiment, together with(More)