University of Illinois Urbana-Champaign

Landscape Associations of Birds During Migratory Stopover

Diehl, Robert Howard

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Description

Title
Landscape Associations of Birds During Migratory Stopover
Author(s)
Diehl, Robert Howard
Issue Date
2003
Doctoral Committee Chair(s)
Ronald P. Larkin
Department of Study
Biology
Discipline
Biology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Geophysics
Language
eng
Abstract
Finally, in the context of hierarchy theory, I examined the influence of landscape ecological and behavioral processes on bird density during migratory stopover. Migrant abundance did not vary across landscapes that differed considerably in the amount of habitat available for stopover. As a result, smaller, more isolated patches held higher densities of birds. Spatial models of migrant habitat selection based on migrant proximity to a patch explained nearly as much variance in the number of migrants occupying patches (R2 = 0.88) as selection models based on migrant interception of patches during flight (R2 = 0.90). Because migrant densities in specific patches were the consequence of biological processes operating at larger spatial scales, sound conservation strategies for migrating landbirds should consider the landscape context of stopover habitats that are potential targets for preservation.
Graduation Semester
2003
Type of Resource
text
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http://hdl.handle.net/2142/85345

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