Author:
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 6
Book Description
A Survey of Potential Bald Eagle Nesting Habitat Along the Great Lakes Shoreline
Author:
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 6
Book Description
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 6
Book Description
Evaluating Great Lakes Bald Eagle Nesting Habitat with Bayesian Inference
Author: Teryl G. Grubb
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 16
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.
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 16
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.
Research Paper RMRS
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 16
Book Description
Regulation of Bald Eagle (Haliaeetus Leucocephalus) Productivity in the Great Lakes Basin
Author: William Wesley Bowerman
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 634
Book Description
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 634
Book Description
Proceedings of the Third Expert Consultation Meeting on Bald Eagles in the Great Lakes Basin
Author: Great Lakes Science Advisory Board. Biological Effects Subcommittee
Publisher: Windsor, Ont. : The Subcommittee
ISBN:
Category : Bald eagle
Languages : en
Pages : 36
Book Description
Publisher: Windsor, Ont. : The Subcommittee
ISBN:
Category : Bald eagle
Languages : en
Pages : 36
Book Description
Bald Eagle Populations in the Great Lakes Region
Author: Alison Laurie Neilson
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 20
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.
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 20
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.
Bald Eagle Production in the Great Lakes States, 1973-1981
Author:
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 54
Book Description
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 54
Book Description
Reproduction and Distribution of Bald Eagles in Voyageurs National Park, Minnesota, 1973-1993
Author: Leland H. Grim
Publisher:
ISBN:
Category : Bald Eagle
Languages : en
Pages : 36
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.
Publisher:
ISBN:
Category : Bald Eagle
Languages : en
Pages : 36
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.
Habitat Suitability Index Models
Author: Allen Peterson
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 40
Book Description
Hiawatha National Forest (N.F.), Grand Island National Recreation Area (N.R.A.)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 412
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 412
Book Description