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Author: University of Minnesota. Graduate School
Publisher:
ISBN:
Category :
Languages : en
Pages : 508
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Book Description
Author: University of Minnesota. Graduate School
Publisher:
ISBN:
Category :
Languages : en
Pages : 508
Get Book Here
Book Description
Author: University of Minnesota. Graduate School
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
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Author:
Publisher:
ISBN:
Category : Red oak
Languages : en
Pages : 76
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Book Description
Author: Daniel H. Sims
Publisher:
ISBN:
Category : Forest regeneration
Languages : en
Pages : 6
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Book Description
Author: Monica G. Turner
Publisher: Springer Science & Business Media
ISBN: 146124742X
Category : Science
Languages : en
Pages : 241
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Book Description
Landscape pattern is generated by a variety of processes, including disturbances. In turn, the heterogeneity of the landscape may enhance or retard the spread of disturbance. The complex relationship between landscape pattern and disturbance is the subject of this book. It is designed to present an illustrative analysis of the topic, presenting the perspectives of several different disciplines. The book includes conceptual considerations, empirical studies, and management examples. Important features include: hypotheses about the spread of disturbance and the effects of scale changes in landscape studies; the multidisciplinary approach; and the explicit focus on the landscape level. The intended audience comprises graduate students, academics, and professionals interested in landscape ecology. The reader will receive a state-of-the-art treatment of a current topic in landscape ecology.
Author: Adrian P. Wydeven
Publisher: Springer Science & Business Media
ISBN: 0387859527
Category : Nature
Languages : en
Pages : 360
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Book Description
In this book, we document and evaluate the recovery of gray wolves (Canis lupus) in the Great Lakes region of the United States. The Great Lakes region is unique in that it was the only portion of the lower 48 states where wolves were never c- pletely extirpated. This region also contains the area where many of the first m- ern concepts of wolf conservation and research where developed. Early proponents of wolf conservation such as Aldo Leopold, Sigurd Olson, and Durward Allen lived and worked in the region. The longest ongoing research on wolf–prey relations (see Vucetich and Peterson, Chap. 3) and the first use of radio telemetry for studying wolves (see Mech, Chap. 2) occurred in the Great Lakes region. The Great Lakes region is the first place in the United States where “Endangered” wolf populations recovered. All three states (Minnesota, Wisconsin, and Michigan) developed ecologically and socially sound wolf conservation plans, and the federal government delisted the population of wolves in these states from the United States list of endangered and threatened species on March 12, 2007 (see Refsnider, Chap. 21). Wolf management reverted to the individual states at that time. Although this delisting has since been challenged, we believe that biological recovery of wolves has occurred and anticipate the delisting will be restored. This will be the first case of wolf conservation reverting from the federal government to the state conser- tion agencies in the United States.
Author: Ulrich Sommer
Publisher: Springer Science & Business Media
ISBN: 3642561667
Category : Science
Languages : en
Pages : 232
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Book Description
The question "Why are there so many species?" has puzzled ecologist for a long time. Initially, an academic question, it has gained practical interest by the recent awareness of global biodiversity loss. Species diversity in local ecosystems has always been discussed in relation to the problem of competi tive exclusion and the apparent contradiction between the competitive exclu sion principle and the overwhelming richness of species found in nature. Competition as a mechanism structuring ecological communities has never been uncontroversial. Not only its importance but even its existence have been debated. On the one extreme, some ecologists have taken competi tion for granted and have used it as an explanation by default if the distribu tion of a species was more restricted than could be explained by physiology and dispersal history. For decades, competition has been a core mechanism behind popular concepts like ecological niche, succession, limiting similarity, and character displacement, among others. For some, competition has almost become synonymous with the Darwinian "struggle for existence", although simple plausibility should tell us that organisms have to struggle against much more than competitors, e.g. predators, parasites, pathogens, and envi ronmental harshness.
Author: Steven Brent Daley-Laursen
Publisher:
ISBN:
Category : Oak
Languages : en
Pages : 324
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Book Description
Proceedings of a conference focusing on the management of the oak resource in Minnesota, Wisconsin and Iowa, held at St. Mary's College, Winona, Minnesota, held June 3-6, 1991.
Author:
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 380
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Book Description
"The bibliography is a guide to recent scientific literature covering effects of agricultural conservation practices on fish and wildlife. The citations listed here provide information on how conservation programs and practices designed to improve fish and wildlife habitat, as well as those intended for other purposes (e.g., water quality improvement), affect various aquatic and terrestrial fauna"--Abstract.
Author: Ivan L. Sander
Publisher:
ISBN:
Category : Forest regeneration
Languages : en
Pages : 14
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Book Description
