The Rice Rats of North America PDF Download
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Author: Edward Alphonso Goldman
Publisher:
ISBN:
Category : Muridae
Languages : en
Pages : 590
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Book Description
Discusses habits, economic status, morphology, variation, history, and specimens of North American rice rats. Provides a key and descriptions for species and subspecies
Author: Edward Alphonso Goldman
Publisher:
ISBN:
Category : Muridae
Languages : en
Pages : 590
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Book Description
Discusses habits, economic status, morphology, variation, history, and specimens of North American rice rats. Provides a key and descriptions for species and subspecies
Author: Edward Alphonso Goldman
Publisher:
ISBN:
Category : Oryzomys
Languages : en
Pages : 100
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Book Description
Author: Hugh H. Genoways
Publisher:
ISBN: 9781609622954
Category : Animals, Fossil
Languages : en
Pages : 0
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Book Description
The expansion and collapse of the geographic range of the Texas rice rat (Oryzomys texensis) in the upper Mississippi River drainage basin at the end of the Holocene was a unique event in North American mammals. In a period of about 4000 years with a point of origin near the American Bottom in Illinois, these small rodents extended their geographic range in a straight-line distance of over 950 km to the west into Nebraska and the same distance to the east into Pennsylvania. Then in less than 400 years this range expansion collapsed back to a point where the northern-most edge of the modern geographic range of these rice rats is in southern Illinois. It is concluded that no single factor led to this geographic range expansion, but it was a complex interplay of changes in Native American populations, culture, foodways, riverine habitats, and climate along with the impact of kleptoparasitism and passive anthropochory. The collapse of the expanded geographic range of Texas rice rats appears to have occurred between AD 1400 and AD 1600, but it did not occur simultaneously throughout the geographic range. This was not an orderly range contraction, but a collapse of populations in place with many local extinction events. These rice rat populations declined beginning with the onset of the Little Ice Age, which brought a colder and wetter climate that caused crop failures resulting from droughts, cold temperatures, or shortened growing seasons. These conditions stressed the dietary reserves of the human populations and thereby the rice rat populations. These conditions, particularly droughts, were harmful to the growing of maize, which served as the primary food resource of the Native Americans and the associated populations of rice rats. It is proposed that the pre-1910 records of rice rat from unusual localities compared to the modern geographic range in southwestern Ohio, Kentucky, and Kansas represent the final extinction events of these Holocene rice rat populations.
Author: David J. Hafner
Publisher: IUCN
ISBN: 9782831704630
Category : Nature
Languages : en
Pages : 188
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Book Description
The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author: Clinton Hart Merriam
Publisher:
ISBN:
Category : Oryzomys
Languages : en
Pages : 32
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Book Description
Author: G. L. Van Hoosier
Publisher: Elsevier
ISBN: 9780127141657
Category : Juvenile Nonfiction
Languages : en
Pages : 420
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Book Description
Author:
Publisher:
ISBN:
Category : Zoology
Languages : en
Pages : 204
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Book Description
Author: Clinton Hart Merriam
Publisher:
ISBN:
Category : Bears
Languages : en
Pages : 868
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Book Description
Author: Nora Bowers
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618153138
Category : Nature
Languages : en
Pages : 360
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Book Description
This compact, comprehensive field reference treats every species of wild mammal found north of the Mexican border--from squirrels and chipmunks to grizzly bears and jaguars--as well as those in North America's offshore waters. More than 1,200 images.
Author:
Publisher: Int. Rice Res. Inst.
ISBN: 971220183X
Category :
Languages : en
Pages : 32
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Book Description
