polyphagy


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Related to polyphagy: oligophagous, polyphagous, monophagous

polyphagy

Pathologic overeating. See Bulimia.
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In order to ascertain individual polyphagy, we evaluated the survival of larvae kept in a glass box (30 x 40 x 60cm), changing the host plants (three plant species), every two days.
Theory predicts that polyphagy in herbivorous arthropods is restricted by trade-offs in performance on different host plants (Futuyma and Moreno 1988, Jaenike 1990, Thompson 1994).
They significantly reduce prey densities in agricultural fields due to their top-down effects microhabitat use prey selection polyphagy wasteful killing functional response numerical response and obligatory feeding strategies (Greenstone and Sunderland 1999; Riechert 1999; Symondson et al.
Measures to reduce BGP damage are difficult to implement because of scale polyphagy, subterranean development, ah apodous feeding nymphal instar called a cyst and the defensive strategy of constructing a separate protective layer around their body from their own liquid excreta (Foldi 2005).
We gathered dietary data for several harvestman species in a soybean field and adjacent hedgerow habitats to assess the extent of their polyphagy.
It is worth noting that tephritids show different degrees of specialization on species of plants native to the American continent, ranging from monophagy to polyphagy (Duyck et al.
Their density independent responses and polyphagy enable them to persist in agroecosystem during the period of low prey density and retard the growth of insect pest population in early crop (Greenstone and Sunderland, 1999; Marc et al.
This strict regional monophagy differs from the relatively wide polyphagy on the nominotypical Chamaecytisus absinthioides idas, which suggests that the latter may be a separate species as asserted by Kolev (2005).