...The lack of a seed-producingunderstory, and the open duff-covered stretches of ground onwhich rodents would be extremely vulnerable to predation, probablyin part account for the scarcity of rodents...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...By contrasting thepresent food habits of coyotes on the desert and coastal slopes ofthe mountains support is afforded for Errington's (1937:243) statementthat predation is "a by-product of population...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...When entire litters are lost at anearly age, to predation, or other causes, productivity is muchincreased, with perhaps only short intervals between pregnancies...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...Deer are concentrated then in the HuronMountain area and vulnerable to predation...
Thomas F. Weise 「An Experimental Translocation of the Eastern Timber Wolf」
...Wolf predation on winteringdeer in east-central Ontario...
Thomas F. Weise 「An Experimental Translocation of the Eastern Timber Wolf」
...Wolf predation and ungulatepopulations...
Thomas F. Weise 「An Experimental Translocation of the Eastern Timber Wolf」
...Wolf movements, activities and predation impacton a wintering deer population in East-Central Ontario...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...The selective effect of predation on prey populationsis of significance in studies of evolutionand population dynamics...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...Or theabnormal condition itself may have caused afurther, more critical, disruption of the animal'sphysiology or behavior, which in turn predisposedit to wolf predation...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...Adult cottontailsseem to be secure from opossum predation under ordinary circumstances...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Various mortalityfactors including predation, disease, and accidents accountfor some 70 per cent...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Numerousinstances of horned owl predation on opossums have been recordedin the literature...
Henry S. Fitch 「Ecology of the Opossum on a Natural Area in Northeastern Kansas」
...Of two species, the one producing the more young probablywould be subjected to more parasitism and predation than thespecies producing fewer young...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Although predation by carnivores would be expected to be higheron P...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Turtles moving about sporadically in late autumn maybe quickly chilled by a sudden drop in temperature and thereforebe more susceptible to predation than at other times of the year...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Although small box turtles may occasionally be caught andkilled by adults in nature, this seems not to constitute a majorsource of predation on the young...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Capacity to recover after serious injuryis great but there is increased chance for secondary injury, infection,and predation in the period of recovery...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...The newly metamorphosed young often are forcedto remain at a pond's edge for many days, or even for weeks, bydrought and they must be subject to especially heavy predation byranid frogs...
Henry S. Fitch 「Field Study of Kansas Ant-Eating Frog」
...Concern such as thatexpressed in the editorial above persists today; however, it is notclear whether the fish fauna of the streams of the area has beenessentially changed by man's predation...
Artie L. Metcalf 「Fishes of Chautauqua, Cowley and Elk Counties, Kansas」
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