Assessing the impacts of moose-induced habitat change on a forest bird community

Rae, Lauren F. (2014) Assessing the impacts of moose-induced habitat change on a forest bird community. Masters thesis, Memorial University of Newfoundland.

[img] [English] PDF - Accepted Version
Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.

Download (627Kb)

Abstract

Forest songbirds are sensitive to habitat disturbances that result in changes to forest structure and composition. In Newfoundland, Canada, browsing by hyperabundant, non-native moose (Alces alces) has caused failed regeneration across extensive areas of forest following disturbance. I examined the impact of these habitat changes at multiple spatial scales on forest bird occurrence and species richness within Gros Morne National Park based on point counts that incorporated both silent intervals and intervals during which black-capped chickadee (Poecile atricapillus) mobbing calls were broadcast. Early successional bird species we more likely to occur with increased failed regeneration on the landscape. Some forest habitat generalists were less likely to occur with increased failed regeneration cover at the local scale. Comparing detection probabilities across silent and playback intervals for 17 species, I found that playbacks increased detection rates for seven species, and either had no effect or decreased detection rates for the remaining ten species.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/8320
Item ID: 8320
Additional Information: Includes bibliographical references.
Department(s): Science, Faculty of > Cognitive and Behavioural Ecology
Date: December 2014
Date Type: Submission
Geographic Location: Gros Morne National Park (N.L.)
Library of Congress Subject Heading: Songbirds--Effect of habitat modification on--Newfoundland and Labrador--Gros Morne National Park; Forest birds--Effect of habitat modification on--Newfoundland and Labrador--Gros Morne National Park; Moose--Control--Environmental aspects--Newfoundland and Labrador--Gros Morne National Park; Forest degradation--Newfoundland and Labrador--Gros Morne National Park

Actions (login required)

View Item View Item

Downloads

Downloads per month over the past year

View more statistics