...They are more sluggish at this time and more vulnerable to predation than later in the season when temperatures are optimal... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The effects of predation upon animal populationsare complex, and predation is often a by-product of population ratherthan a controlling factor...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...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」
...The femalewoodrat's habit of dragging the young attached to her teats as she fleesfrom the house at any alarm must save many litters from predation by thepilot black snake...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...Nestling birds,either on the ground or in low trees, and young mice in nests that areaccessible, might tempt the rat to indulge in predation...
Henry S. Fitch 「Ecological Observations on the Woodrat, Neotoma floridana」
...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」
...In addition to known predation by mountain lions and coyoteson porcupines, the bobcat kills porcupines...
Sydney Anderson 「Mammals of Mesa Verde National Park, Colorado」
...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」
...Evidently, most deer can usuallyescape wolf predation...
L. David Mech 「Ecological Studies of the Timber Wolf in Northeastern Minnesota」
...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」
...ornata are availableand I have found little direct evidence of predation in thecourse of this study...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...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」
...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」
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