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Density-dependent mortality was shown to occur among the parasitic stages of Boophilus microplus (Can.) on European and Zebu X European breeds of catt...
Read moreThe most broadly applied generalizations of bioeconomics were derived from simple, non-spatial models. We develop a simple continuous spatial model in...
Read moreM. sativa cv. du Puits and Europe plants contained 2 populations of stems originating from either axillary or crown buds which differed in their rates...
Read moreCollembola and Acarina populations in grass/legume pastures that were grazed continuously with sheep at three stocking intensities were sampled at six...
Read moreLarge-scale destruction of ecosystems caused by surface mining provides an opportunity for the study of colonization processes starting with primary s...
Read moreA mathematical model is described that was developed to relate observed egg sterility in insects to other parameters of mating and reproduction, for u...
Read moreA study in young lodgepole pine forest near Prince George, BC, Canada, from 1979 to 1983 during the late increase, peak and decline phases of the Lepu...
Read moreRapid environmental change is placing increasing pressure on the survival of many species globally. Ecological refuges can mitigate the impacts of cha...
Read moreA simple geometric model for one-time control was expanded to incorporate more realistic aspects of invasion and used to evaluate the spatial growth o...
Read moreA model of the progress of an outbreak of foot and mouth disease in a single population of feral pigs, is described. The population was divided into c...
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