LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by

ii The biological remains preserved in the sediments of Arctic lakes and ponds in the Canadian High Arctic are important indicators of environmental change, especially as long-term instrumental data are often lacking. Although recent studies have underscored variability amongst these aquatic ecosyst...

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Main Author: Bronwyn Elizabeth Keatley
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2007
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.456.732
http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.456.732 2023-05-15T14:33:55+02:00 LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by Bronwyn Elizabeth Keatley The Pennsylvania State University CiteSeerX Archives 2007 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.456.732 http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.456.732 http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf text 2007 ftciteseerx 2016-01-08T06:14:54Z ii The biological remains preserved in the sediments of Arctic lakes and ponds in the Canadian High Arctic are important indicators of environmental change, especially as long-term instrumental data are often lacking. Although recent studies have underscored variability amongst these aquatic ecosystems, data are lacking from several key ecosystems. This thesis addresses some of these critical knowledge gaps in the Canadian high Arctic, using diatom-based limnological and paleolimnological techniques. First, I explore the limnology and diatom ecology along a gradient of bioclimatic zones on Melville Island in the western High Arctic. Lakes and ponds located in the most lushly vegetated zone were significantly different from those elsewhere on the island, both in terms of measured limnological variables and in terms of diatom assemblage composition. Diatom species distributions from Melville Island can best be explained by differences in pH and related variables. Secondly, ponds and lakes located in a High Arctic oasis on northern Ellesmere Island Text Arctic Ellesmere Island Melville Island Unknown Arctic Ellesmere Island
institution Open Polar
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language English
description ii The biological remains preserved in the sediments of Arctic lakes and ponds in the Canadian High Arctic are important indicators of environmental change, especially as long-term instrumental data are often lacking. Although recent studies have underscored variability amongst these aquatic ecosystems, data are lacking from several key ecosystems. This thesis addresses some of these critical knowledge gaps in the Canadian high Arctic, using diatom-based limnological and paleolimnological techniques. First, I explore the limnology and diatom ecology along a gradient of bioclimatic zones on Melville Island in the western High Arctic. Lakes and ponds located in the most lushly vegetated zone were significantly different from those elsewhere on the island, both in terms of measured limnological variables and in terms of diatom assemblage composition. Diatom species distributions from Melville Island can best be explained by differences in pH and related variables. Secondly, ponds and lakes located in a High Arctic oasis on northern Ellesmere Island
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Bronwyn Elizabeth Keatley
spellingShingle Bronwyn Elizabeth Keatley
LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
author_facet Bronwyn Elizabeth Keatley
author_sort Bronwyn Elizabeth Keatley
title LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
title_short LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
title_full LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
title_fullStr LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
title_full_unstemmed LIMNOLOGICAL AND PALEOLIMNOLOGICAL INVESTIGATIONS OF ENVIRONMENTAL CHANGE IN THREE DISTINCT ECOSYSTEM TYPES, CANADIAN HIGH ARCTIC by
title_sort limnological and paleolimnological investigations of environmental change in three distinct ecosystem types, canadian high arctic by
publishDate 2007
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.456.732
http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf
geographic Arctic
Ellesmere Island
geographic_facet Arctic
Ellesmere Island
genre Arctic
Ellesmere Island
Melville Island
genre_facet Arctic
Ellesmere Island
Melville Island
op_source http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.456.732
http://qspace.library.queensu.ca/bitstream/1974/697/1/Keatley_Bronwyn_E_200709_PhD.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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