Climate Change and Baleen Whale Trophic Cascades in Greenland
The primary goal of this study is to examine and contrast the foraging strategies of two baleen whale species in West Greenland. We use a multidisciplinary approach by combining observations of movements, foraging ecology and phenology collected by satellite and archival telemetry with intensive and...
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ftdtic:ADA539212 2023-05-15T14:59:17+02:00 Climate Change and Baleen Whale Trophic Cascades in Greenland Laidre, Kristin L. Heide-Joergensen, Mads P. WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER 2010 text/html http://www.dtic.mil/docs/citations/ADA539212 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA539212 en eng http://www.dtic.mil/docs/citations/ADA539212 Approved for public release; distribution is unlimited. DTIC Biology *WHALES ECOSYSTEMS SEA ICE ICE BREAKUP GREENLAND FOOD CHAINS CLIMATE ARCTIC REGIONS Text 2010 ftdtic 2016-02-23T06:38:09Z The primary goal of this study is to examine and contrast the foraging strategies of two baleen whale species in West Greenland. We use a multidisciplinary approach by combining observations of movements, foraging ecology and phenology collected by satellite and archival telemetry with intensive and localized in situ sampling of ocean conditions and prey availability. These baseline trophic relationships are quantified using spatial movement and bioenergetic models. OBJECTIVES We are focusing on two species in Disko Bay, West Greenland and asking the following questions: 1) ?What is the spatial and temporal overlap between bowhead whales, phytoplankton, and zooplankton after the spring sea ice breakup in April and May??, and 2) ?What is the spatial and temporal overlap between humpback whales and capelin in June and July, and 3) on what space and time scales do these two large whales overlap??. Answering these questions will enable us to determine the spatial, temporal, and ecological overlap between these two top predators in West Greenland. Fluxes of organisms across ecosystem boundaries have major consequences for community dynamics and predation can create strong effects throughout food webs. This is one of the few Arctic studies conducted on the multi-species trophic coupling between whales and their prey. The simplicity of the food chains in West Greenland offer unique opportunities to gain insight into predator-prey dynamics also relevant to more complex ecosystems. Text Arctic baleen whale Climate change Disko Bay Greenland Phytoplankton Sea ice Zooplankton Defense Technical Information Center: DTIC Technical Reports database Arctic Greenland |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Biology *WHALES ECOSYSTEMS SEA ICE ICE BREAKUP GREENLAND FOOD CHAINS CLIMATE ARCTIC REGIONS |
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Biology *WHALES ECOSYSTEMS SEA ICE ICE BREAKUP GREENLAND FOOD CHAINS CLIMATE ARCTIC REGIONS Laidre, Kristin L. Heide-Joergensen, Mads P. Climate Change and Baleen Whale Trophic Cascades in Greenland |
topic_facet |
Biology *WHALES ECOSYSTEMS SEA ICE ICE BREAKUP GREENLAND FOOD CHAINS CLIMATE ARCTIC REGIONS |
description |
The primary goal of this study is to examine and contrast the foraging strategies of two baleen whale species in West Greenland. We use a multidisciplinary approach by combining observations of movements, foraging ecology and phenology collected by satellite and archival telemetry with intensive and localized in situ sampling of ocean conditions and prey availability. These baseline trophic relationships are quantified using spatial movement and bioenergetic models. OBJECTIVES We are focusing on two species in Disko Bay, West Greenland and asking the following questions: 1) ?What is the spatial and temporal overlap between bowhead whales, phytoplankton, and zooplankton after the spring sea ice breakup in April and May??, and 2) ?What is the spatial and temporal overlap between humpback whales and capelin in June and July, and 3) on what space and time scales do these two large whales overlap??. Answering these questions will enable us to determine the spatial, temporal, and ecological overlap between these two top predators in West Greenland. Fluxes of organisms across ecosystem boundaries have major consequences for community dynamics and predation can create strong effects throughout food webs. This is one of the few Arctic studies conducted on the multi-species trophic coupling between whales and their prey. The simplicity of the food chains in West Greenland offer unique opportunities to gain insight into predator-prey dynamics also relevant to more complex ecosystems. |
author2 |
WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER |
format |
Text |
author |
Laidre, Kristin L. Heide-Joergensen, Mads P. |
author_facet |
Laidre, Kristin L. Heide-Joergensen, Mads P. |
author_sort |
Laidre, Kristin L. |
title |
Climate Change and Baleen Whale Trophic Cascades in Greenland |
title_short |
Climate Change and Baleen Whale Trophic Cascades in Greenland |
title_full |
Climate Change and Baleen Whale Trophic Cascades in Greenland |
title_fullStr |
Climate Change and Baleen Whale Trophic Cascades in Greenland |
title_full_unstemmed |
Climate Change and Baleen Whale Trophic Cascades in Greenland |
title_sort |
climate change and baleen whale trophic cascades in greenland |
publishDate |
2010 |
url |
http://www.dtic.mil/docs/citations/ADA539212 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA539212 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic baleen whale Climate change Disko Bay Greenland Phytoplankton Sea ice Zooplankton |
genre_facet |
Arctic baleen whale Climate change Disko Bay Greenland Phytoplankton Sea ice Zooplankton |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA539212 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766331388171124736 |