Author: Kathleen A. EngelPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 56
Book Description
Effects of Human Activity on the Reproduction, Behavior, and Habitat Use of Bald Eagles (Haliaeetus Leucocephalus) on the St. Croix National Scenic Riverway
Author: Kathleen A. EngelPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 56
Book Description
Feeding Behavior and Habitat Use by Bald Eagles
Author: Thomas C. DunstanPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 63
Book Description
Human Impacts on the Ecology of Bald Eagles in Interior Alaska
Author: Robert J. SteidlPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 310
Book Description
To assess the consequences of increased recreational activity on bald eagles (Haliaeetus leucocephalus), we studied factors that influenced their behavior and reproductive success in the Gulkana River basin, Alaska, from 1989 to 1993. Both extrinsic and intrinsic factors were associated with reproductive success. Productivity averaged 0.86 young fledged per occupied territory (SE = 0.05) with 59% nest success (n = 274), but productivity varied among years and subdrainages (P
Reproduction and Distribution of Bald Eagles in Voyageurs National Park, Minnesota, 1973-1993
Author: Leland H. GrimPublisher:
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.
Evaluating Great Lakes Bald Eagle Nesting Habitat with Bayesian Inference
Author: Teryl G. GrubbPublisher:
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.
Feeding Behavior and Habitat Use by Bald Eagles
Author: Thomas C. DunstanPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 50
Book Description
Habitat Suitability Index Models
Author: Allen PetersonPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 40
Book Description
Activity Budgets, Habitat Use and the Effects of Human Disturbance on Juvenile Bald Eagles in Ohio
Author: Linda Kothera CourterPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 128
Book Description
Effects of Contaminants, Food Availability, and Weather on the Reproductive Rate of Lake Superior Bald Eagles (haliaeetus Leucocephalus)
Author: Cheryl Joan DykstraPublisher:
ISBN:
Category : Bald eagle
Languages : en
Pages : 520
Book Description
Author: