Only scraper and filterer
functional groups failed to show differences between streams during the 4-yr treatment.
Under the latter procedure, imagine that, instead of a single cake, a filterer
must choose a subset of different pastries from a larger set -- by filtering out what he or she considers the best -- in such a way that the chooser will also prefer this portion.
Each user has a little box, where documents are deposited by the filterer
and removed by a user's document reader.
Total invertebrate and chironomid abundance (Figure 4) were higher in the fertilised leaf bags throughout the study, but there were no significant differences between treatments in either total, shredder (Figure 4), collector + scraper, filterer
, predator or chironomid abundances (ANOVA: F < 3.
It also appears the primary feeding group of invertebrates discriminated as collector/gatherer, collector/ filterer
, scraper, shredder, predator, or parasite.
Giant mantas, which are plankton filterers
, are classified as 'vulnerable' by the International Union for Conservation of Nature, with an 'elevated risk of extinction'.
En efecto, en el contexto del turismo, Gilbert (1992) sostiene que existen cuatro areas generales que determinan el acceso de los agentes economicos a este tipo de bienes: i) energisers, corresponde a aquellas fuerzas, como la motivacion, que conducen al turista a llevar a cabo determinada accion; ii) filterers
, existen factores de tipo economico, sociologico y psicologico que limitan o restringen la demanda; iii) affecters, tanto la imagen del destino como el conjunto de informacion disponible inciden sobre las decisiones individuales o el conjunto de recordacion ('evoked sets'); y iv) roles, considera los posibles papeles que asumira el agente economico, asi como los roles adoptados en la compra turistica.
The Xinjiang unrest incurred a total regional shutdown, but China is better known for its veritable army of Internet watchdogs and filterers
, and actions against particular groups or websites have caught the attention of the outside world and raised accusations of human rights abuses via censorship.
Furthermore, the collected insects were separated by functional groups: predators, scrapers, filterers
, collectors, collectors-filterers
, piercers-herbivores, shredders-herbivores, shredders-detritivores, as proposed by Merritt and Cummins (1996).
Rather, she reveals the agency (albeit highly constrained) of African Americans as filterers
, shapers, and co-producers of the images of blackness consumed by the masses.
pointed out, "information professionals have evolved from simply acting as 'evidence locators' and 'resource providers' to being quality literature filterers
, critical appraisers, educators, disseminators, and even change managers" .