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The Role Of Predation In Wildlife Population Dynamics, Eric M. Gese, Frederick F. Knowlton
The Role Of Predation In Wildlife Population Dynamics, Eric M. Gese, Frederick F. Knowlton
USDA Wildlife Services: Staff Publications
The role predation plays in the dynamics of prey populations is controversial. Our understandings of predator-prey relationships is complicated by a multitude of factors in the environment and a general lack of knowledge of most ecological systems. Various other factors, besides predation, may regulate or limit prey populations, and various factors influence the degree to which predation affects prey populations. Furthermore, some factors may create time lags, or even cause generational effects, that go unnoticed. Herein, we review the role of predation in wildlife population dynamics, some of the factors influencing predator-prey interactions, and attempt to indicate where the professional …
Introduced Wildlife Of Oregon And Washington , Gary W. Witmer, Jeffrey C. Lewis
Introduced Wildlife Of Oregon And Washington , Gary W. Witmer, Jeffrey C. Lewis
USDA Wildlife Services: Staff Publications
Each species of wildlife occurs as part of an ecosystem, interacting in many ways with other plant and animal species in that system as well as with the abiotic components such as soil, air, water, and other substrates. The array of wildlife species around the globe has been shaped by geological and climatological events as well as by eons of evolution and natural selection. Species have come and gone and those remaining have, in most cases, co-evolved or co-adapted with many other species so that relatively stable, and often complex, relationships exist. Usually, a great many niches have been carved …