The distribution and nest survival of Giant Canada Geese breeding in Iowa
Updated measurements of Canada goose distribution and nest survival are essential to develop and evaluate management strategies. Iowa's protocols for monitoring the Canada goose breeding population use a stratified random sampling method to select square-mile sections to be surveyed by helicopt...
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ftiowastateuniv:oai:lib.dr.iastate.edu:etd-5200 2023-05-15T15:48:50+02:00 The distribution and nest survival of Giant Canada Geese breeding in Iowa Towery, Brenna N. 2015-01-01T08:00:00Z application/pdf https://lib.dr.iastate.edu/etd/14193 https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=5200&context=etd en eng Iowa State University Digital Repository https://lib.dr.iastate.edu/etd/14193 https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=5200&context=etd Graduate Theses and Dissertations Wildlife Ecology Giant Canada Goose Habitat Modeling Iowa Nest Survival Natural Resources Management and Policy text 2015 ftiowastateuniv 2018-11-26T01:39:00Z Updated measurements of Canada goose distribution and nest survival are essential to develop and evaluate management strategies. Iowa's protocols for monitoring the Canada goose breeding population use a stratified random sampling method to select square-mile sections to be surveyed by helicopter. Precise population estimates require that the universe of survey plots be accurately stratified. I provided a more statistically rigorous method of stratifying Iowa's square-mile sections by developing a model to predict Canada goose breeding pair densities by incorporating updated National Wetlands Inventory data and previous breeding population survey data. I found that breeding pairs were best predicted by the wetland types, number of wetlands, area of each wetland type, and a quadratic of the area of each wetland type in each section, as well as an interaction between the wetland types and the area of each wetland type, and random effects for observations and sections. The model indicated that goose densities are highest at large semi-permanent marshes. Reliable estimates of Canada goose nest survival allow management agencies to evaluate available nesting habitats and determine appropriate management techniques. I monitored Canada goose nests at five state-managed wetland complexes to determine how nesting habitat influenced nest survival rates at rural wetlands in north-central Iowa. I found that nest structures produced significantly higher nest survival than nests on islands and muskrat houses. I also found that shallow lake renovation activities at Rice Lake Wildlife Management Area, which involved manipulating the water level, had a negative impact on Canada goose nest survival. Text Canada Goose Digital Repository @ Iowa State University Canada Rice Lake ENVELOPE(-103.767,-103.767,56.850,56.850) |
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Digital Repository @ Iowa State University |
op_collection_id |
ftiowastateuniv |
language |
English |
topic |
Wildlife Ecology Giant Canada Goose Habitat Modeling Iowa Nest Survival Natural Resources Management and Policy |
spellingShingle |
Wildlife Ecology Giant Canada Goose Habitat Modeling Iowa Nest Survival Natural Resources Management and Policy Towery, Brenna N. The distribution and nest survival of Giant Canada Geese breeding in Iowa |
topic_facet |
Wildlife Ecology Giant Canada Goose Habitat Modeling Iowa Nest Survival Natural Resources Management and Policy |
description |
Updated measurements of Canada goose distribution and nest survival are essential to develop and evaluate management strategies. Iowa's protocols for monitoring the Canada goose breeding population use a stratified random sampling method to select square-mile sections to be surveyed by helicopter. Precise population estimates require that the universe of survey plots be accurately stratified. I provided a more statistically rigorous method of stratifying Iowa's square-mile sections by developing a model to predict Canada goose breeding pair densities by incorporating updated National Wetlands Inventory data and previous breeding population survey data. I found that breeding pairs were best predicted by the wetland types, number of wetlands, area of each wetland type, and a quadratic of the area of each wetland type in each section, as well as an interaction between the wetland types and the area of each wetland type, and random effects for observations and sections. The model indicated that goose densities are highest at large semi-permanent marshes. Reliable estimates of Canada goose nest survival allow management agencies to evaluate available nesting habitats and determine appropriate management techniques. I monitored Canada goose nests at five state-managed wetland complexes to determine how nesting habitat influenced nest survival rates at rural wetlands in north-central Iowa. I found that nest structures produced significantly higher nest survival than nests on islands and muskrat houses. I also found that shallow lake renovation activities at Rice Lake Wildlife Management Area, which involved manipulating the water level, had a negative impact on Canada goose nest survival. |
format |
Text |
author |
Towery, Brenna N. |
author_facet |
Towery, Brenna N. |
author_sort |
Towery, Brenna N. |
title |
The distribution and nest survival of Giant Canada Geese breeding in Iowa |
title_short |
The distribution and nest survival of Giant Canada Geese breeding in Iowa |
title_full |
The distribution and nest survival of Giant Canada Geese breeding in Iowa |
title_fullStr |
The distribution and nest survival of Giant Canada Geese breeding in Iowa |
title_full_unstemmed |
The distribution and nest survival of Giant Canada Geese breeding in Iowa |
title_sort |
distribution and nest survival of giant canada geese breeding in iowa |
publisher |
Iowa State University Digital Repository |
publishDate |
2015 |
url |
https://lib.dr.iastate.edu/etd/14193 https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=5200&context=etd |
long_lat |
ENVELOPE(-103.767,-103.767,56.850,56.850) |
geographic |
Canada Rice Lake |
geographic_facet |
Canada Rice Lake |
genre |
Canada Goose |
genre_facet |
Canada Goose |
op_source |
Graduate Theses and Dissertations |
op_relation |
https://lib.dr.iastate.edu/etd/14193 https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=5200&context=etd |
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1766383947193778176 |