Bald Eagle Populations in the Great Lakes Region PDF Download
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Author: Alison Laurie Neilson
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 20
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Book Description
Heavy development in the Great Lakes area has diminished eagle nesting habitat and foraging opportunities. This document presents information on bald eagles and describes some of the challenges to bald eagle populations around the Great Lakes, including chemical contaminants in the aquatic food web. It outlines legislative protection and conservation strategies, and describes current conditions and nesting results for bald eagles.
Author: Alison Laurie Neilson
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 20
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Book Description
Heavy development in the Great Lakes area has diminished eagle nesting habitat and foraging opportunities. This document presents information on bald eagles and describes some of the challenges to bald eagle populations around the Great Lakes, including chemical contaminants in the aquatic food web. It outlines legislative protection and conservation strategies, and describes current conditions and nesting results for bald eagles.
Author:
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 54
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Book Description
Author: Great Lakes Science Advisory Board. Biological Effects Subcommittee
Publisher: Windsor, Ont. : The Subcommittee
ISBN:
Category : Bald eagle
Languages : en
Pages : 36
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Book Description
Author: Teryl G. Grubb
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 16
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Book Description
Bayesian inference facilitated structured interpretation of a nonreplicated, experience-based survey of potential nesting habitat for bald eagles (Haliaeetus leucocephalus) along the five Great Lakes shorelines. We developed a pattern recognition (PATREC) model of our aerial search image with six habitat attributes: (a) tree cover, (b) proximity and (c) type/amount of human disturbance, (d) potential foraging habitat/shoreline irregularity, and suitable trees for (e) perching and (f) nesting. Tree cover greater than 10 percent, human disturbance more than 0.8 km away, a ratio of total to linear shoreline distance greater than 2.0, and suitable perch and nest trees were prerequisite for good eagle habitat (having sufficient physical attributes for bald eagle nesting). The estimated probability of good habitat was high (96 percent) when all attributes were optimal, and nonexistent (0 percent) when none of the model attributes were present. Of the 117 active bald eagle nests along the Great Lakes shorelines in 1992, 82 percent were in habitat classified as good. While our PATREC model provides a method for consistent interpretation of subjective surveyor experience, it also facilitates future management of bald eagle nesting habitat along Great Lakes shorelines by providing insight into the number, type, and relative importance of key habitat attributes. This practical application of Bayesian inference demonstrates the technique's advantages for effectively incorporating available expertise, detailing model development processes, enabling exploratory simulations, and facilitating long-term ecosystem monitoring.
Author: William Wesley Bowerman
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 634
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Book Description
Author: Tim Bartish
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 45
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Book Description
Author: John Mathisen
Publisher: Lake States Interpretive Association, Incorporated
ISBN:
Category : Nature
Languages : en
Pages : 44
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Book Description
Author:
Publisher:
ISBN:
Category : Biodiversity
Languages : en
Pages : 994
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Book Description
Author: Catherine E. Puckett Haecker
Publisher: Geological Survey (USGS)
ISBN:
Category : Nature
Languages : en
Pages : 482
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Book Description
Assesses the health of the United States plants, animals, and ecosystems.
Author: Leland H. Grim
Publisher:
ISBN:
Category : Bald Eagle
Languages : en
Pages : 36
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Book Description
Annual number of breeding pairs, fledged eaglets, and reproductive success increased during the study but below reproductive success of healthy bald eagle populations.
