Three taxa, Neophylax sp, a scraper; Seratella sp., a gatherer; and Diplectrona modesta, a filterer
, increased significantly in the mixed substrate habitat of the treatment stream relative to the reference stream (Table 8).
As with the divider under divide-and-choose, the filterer
under filter-and-choose-that is, the player who selects the subset -- can ensure a proportional and envy-free division.
The heart of the Tapestry server is the Filterer
, which executes users' filter queries.
and Chironomidae numerically dominated in both treatments, in terms of biomass the relative importance of collector + scrapers, predators and shredders increased in relation to Chironomidae (Figure 5).
Accordingly, families and specimens were categorized into eight distinct groups for each studied environment: predators grouped 34 families, collectors 17, shredders-herbivores ten, scrapers eight, collectors-filterers three, piercers-herbivores three, filterers
two and shredders-detritivores two (Appendix 3).
were developed specifically for removing oil waste from water streams; the filtration unit supplied to Torbay Hospital was designed to remove oil bund water, which contains silts as well as oil residues.
More recent times, however, have seen a resurgence in appreciation of wetlands, now recognized as stabilizers of streams, storage basins for storm waters, and filterers
and purifiers of ground and surface waters.
Also, since atyid and Xiphocaris shrimps collectively represent "gatherers" and "filterers
" (sensu Cummins and Klug 1979), their activities can potentially affect the quality and quantity of FPOM in both the benthic depositional environment and suspended seston.
Because the kidneys and liver are the principal outlets and filterers
of poisons, their integrity must be fiercely protected.
The complexity of functional feeding groups (e.g., gatherers, filterers
, scrapers, predators) can be a measure of the functional integrity of BMI communities and a reflection of its capacity to cycle nutrients (Wallace and Webster 1996).