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The ecology of the greater prairie c...

Toepfer, John Edward.

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The ecology of the greater prairie chicken as related to reintroductions.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	The ecology of the greater prairie chicken as related to reintroductions./
作者:	Toepfer, John Edward.
面頁冊數:	568 p.
附註:	Chairperson: Robert L. Eng.
Contained By:	Dissertation Abstracts International50-03B.
標題:	Agriculture, Forestry and Wildlife. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8904752

The ecology of the greater prairie chicken as related to reintroductions.
Toepfer, John Edward.

The ecology of the greater prairie chicken as related to reintroductions. - 568 p.

Chairperson: Robert L. Eng.

Thesis (Ph.D.)--Montana State University, 1988.

This study was initiated in 1972 to examine nesting and brood rearing ecology of the prairie chicken in central Wisconsin. The study was expanded to include movements and habitat use of resident and transplanted birds and to evaluate pen-reared and transplanted wild birds in reestablishing a population in northwestern Wisconsin. Mean weights and breast circumferences of pen-reared birds were significantly less than those of wild birds. A total of 223 pen-reared and 60 wild prairie chickens were released from 1974-77 and 55 pen-reared, 29 transplants and 54 resident birds were radio-tagged. Ninety percent of the radio-tagged pen-reared birds were dead within a month. Over 80% of the losses of radio-tagged birds were attributed to predation. Pen-reared birds were more susceptible to mammalian predation than wild birds. Annual survival of wild, transplanted and pen-reared birds was 48%, 24% and 0.5% respectively. Pen-reared birds were more observable and attracted more raptors than wild birds. Flushing distances of pen-reared birds were half those of wild birds. Pen-reared birds remained within 2 km of their release sites and their movements were most like those of wild birds during summer. Movements of transplanted birds during April were characterized by an orientation period of 0-55 days when individuals made large wandering moves that at times exceeded 16 km. Daily movements and ranges of transplants were 2-20 times larger than those of resident birds. However, movements of birds transplanted in August were comparable to those of resident birds. Habitat analysis indicated that prairie chicken habitat was a mix of undisturbed, disturbed grassland and agriculture. The critical habitat component was grass or grass forbs cover in the 25-100 cm height that was used for nesting, roosting and brood rearing. Agriculture was used for feeding. Habitat information is presented on an annual, seasonal and weekly basis by day and night for two areas. Additional information is presented on flocking, the relationship to the booming ground, nest, weight dynamics, seasonal survival, effects of removal on local populations, costs, survival and behavior inside the pen. Recommendations are given with regard to future reintroductions and habitat management.Subjects--Topical Terms:

783690
Agriculture, Forestry and Wildlife.

The ecology of the greater prairie chicken as related to reintroductions.
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502 $a Thesis (Ph.D.)--Montana State University, 1988.
520 $a This study was initiated in 1972 to examine nesting and brood rearing ecology of the prairie chicken in central Wisconsin. The study was expanded to include movements and habitat use of resident and transplanted birds and to evaluate pen-reared and transplanted wild birds in reestablishing a population in northwestern Wisconsin. Mean weights and breast circumferences of pen-reared birds were significantly less than those of wild birds. A total of 223 pen-reared and 60 wild prairie chickens were released from 1974-77 and 55 pen-reared, 29 transplants and 54 resident birds were radio-tagged. Ninety percent of the radio-tagged pen-reared birds were dead within a month. Over 80% of the losses of radio-tagged birds were attributed to predation. Pen-reared birds were more susceptible to mammalian predation than wild birds. Annual survival of wild, transplanted and pen-reared birds was 48%, 24% and 0.5% respectively. Pen-reared birds were more observable and attracted more raptors than wild birds. Flushing distances of pen-reared birds were half those of wild birds. Pen-reared birds remained within 2 km of their release sites and their movements were most like those of wild birds during summer. Movements of transplanted birds during April were characterized by an orientation period of 0-55 days when individuals made large wandering moves that at times exceeded 16 km. Daily movements and ranges of transplants were 2-20 times larger than those of resident birds. However, movements of birds transplanted in August were comparable to those of resident birds. Habitat analysis indicated that prairie chicken habitat was a mix of undisturbed, disturbed grassland and agriculture. The critical habitat component was grass or grass forbs cover in the 25-100 cm height that was used for nesting, roosting and brood rearing. Agriculture was used for feeding. Habitat information is presented on an annual, seasonal and weekly basis by day and night for two areas. Additional information is presented on flocking, the relationship to the booming ground, nest, weight dynamics, seasonal survival, effects of removal on local populations, costs, survival and behavior inside the pen. Recommendations are given with regard to future reintroductions and habitat management.
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