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 foraging ecology and phenology collected by satellite and archival telemetry with intensive and localized...
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ftdtic:ADA505241 2023-05-15T15:36:54+02:00 Climate Change and Baleen Whale Trophic Cascades in Greenland Laidre, Kristin L. Heide-Jorgensen, Mads P. WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER 2008 text/html http://www.dtic.mil/docs/citations/ADA505241 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA505241 en eng http://www.dtic.mil/docs/citations/ADA505241 Approved for public release; distribution is unlimited. DTIC Biological Oceanography Physical and Dynamic Oceanography Acoustic Detection and Detectors Miscellaneous Detection and Detectors Marine Engineering *PHYTOPLANKTON *FOOD CHAINS *CLIMATE *GREENLAND *WHALES *ZOOPLANKTON *OCEAN ENVIRONMENTS SAMPLING ECOSYSTEMS MARINE BIOLOGY FOCUSING OVERLAP OCEANS WEST(DIRECTION) ECOLOGY SPRINGS SEA ICE AQUATIC ANIMALS TELEMETER SYSTEMS MALNUTRITION SCALE BASE LINES OCEANOGRAPHIC DATA BOUNDARIES TIME ICE BREAKUP COMMUNITIES DYNAMICS *BALEEN WHALES *BOWHEAD WHALES *HUMPBACK WHALES *CAPELIN BIOENERGETIC MODELS FORAGING STRATEGIES TROPHIC RELATIONSHIPS DISKO BAY PREDATION PREDATORS PREY FOOD WEBS CLIMATE CHANGE SPOT5 SATELLITE TRANSMITTER SPLASH WILDLIFE TAGS SMMR(SCANNING MULTIFREQUENCY MICROWAVE RADIOMETER) SSMI(SPECIAL SENSOR MICROWAVE IMAGER) *TROPHIC CASCADES Text 2008 ftdtic 2016-02-22T21:17:46Z 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 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 and bioenergetic models. 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 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 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 baleen whale baleen whales Disko Bay Greenland Sea ice Defense Technical Information Center: DTIC Technical Reports database Greenland |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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language |
English |
topic |
Biological Oceanography Physical and Dynamic Oceanography Acoustic Detection and Detectors Miscellaneous Detection and Detectors Marine Engineering *PHYTOPLANKTON *FOOD CHAINS *CLIMATE *GREENLAND *WHALES *ZOOPLANKTON *OCEAN ENVIRONMENTS SAMPLING ECOSYSTEMS MARINE BIOLOGY FOCUSING OVERLAP OCEANS WEST(DIRECTION) ECOLOGY SPRINGS SEA ICE AQUATIC ANIMALS TELEMETER SYSTEMS MALNUTRITION SCALE BASE LINES OCEANOGRAPHIC DATA BOUNDARIES TIME ICE BREAKUP COMMUNITIES DYNAMICS *BALEEN WHALES *BOWHEAD WHALES *HUMPBACK WHALES *CAPELIN BIOENERGETIC MODELS FORAGING STRATEGIES TROPHIC RELATIONSHIPS DISKO BAY PREDATION PREDATORS PREY FOOD WEBS CLIMATE CHANGE SPOT5 SATELLITE TRANSMITTER SPLASH WILDLIFE TAGS SMMR(SCANNING MULTIFREQUENCY MICROWAVE RADIOMETER) SSMI(SPECIAL SENSOR MICROWAVE IMAGER) *TROPHIC CASCADES |
spellingShingle |
Biological Oceanography Physical and Dynamic Oceanography Acoustic Detection and Detectors Miscellaneous Detection and Detectors Marine Engineering *PHYTOPLANKTON *FOOD CHAINS *CLIMATE *GREENLAND *WHALES *ZOOPLANKTON *OCEAN ENVIRONMENTS SAMPLING ECOSYSTEMS MARINE BIOLOGY FOCUSING OVERLAP OCEANS WEST(DIRECTION) ECOLOGY SPRINGS SEA ICE AQUATIC ANIMALS TELEMETER SYSTEMS MALNUTRITION SCALE BASE LINES OCEANOGRAPHIC DATA BOUNDARIES TIME ICE BREAKUP COMMUNITIES DYNAMICS *BALEEN WHALES *BOWHEAD WHALES *HUMPBACK WHALES *CAPELIN BIOENERGETIC MODELS FORAGING STRATEGIES TROPHIC RELATIONSHIPS DISKO BAY PREDATION PREDATORS PREY FOOD WEBS CLIMATE CHANGE SPOT5 SATELLITE TRANSMITTER SPLASH WILDLIFE TAGS SMMR(SCANNING MULTIFREQUENCY MICROWAVE RADIOMETER) SSMI(SPECIAL SENSOR MICROWAVE IMAGER) *TROPHIC CASCADES Laidre, Kristin L. Heide-Jorgensen, Mads P. Climate Change and Baleen Whale Trophic Cascades in Greenland |
topic_facet |
Biological Oceanography Physical and Dynamic Oceanography Acoustic Detection and Detectors Miscellaneous Detection and Detectors Marine Engineering *PHYTOPLANKTON *FOOD CHAINS *CLIMATE *GREENLAND *WHALES *ZOOPLANKTON *OCEAN ENVIRONMENTS SAMPLING ECOSYSTEMS MARINE BIOLOGY FOCUSING OVERLAP OCEANS WEST(DIRECTION) ECOLOGY SPRINGS SEA ICE AQUATIC ANIMALS TELEMETER SYSTEMS MALNUTRITION SCALE BASE LINES OCEANOGRAPHIC DATA BOUNDARIES TIME ICE BREAKUP COMMUNITIES DYNAMICS *BALEEN WHALES *BOWHEAD WHALES *HUMPBACK WHALES *CAPELIN BIOENERGETIC MODELS FORAGING STRATEGIES TROPHIC RELATIONSHIPS DISKO BAY PREDATION PREDATORS PREY FOOD WEBS CLIMATE CHANGE SPOT5 SATELLITE TRANSMITTER SPLASH WILDLIFE TAGS SMMR(SCANNING MULTIFREQUENCY MICROWAVE RADIOMETER) SSMI(SPECIAL SENSOR MICROWAVE IMAGER) *TROPHIC CASCADES |
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 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 and bioenergetic models. 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 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 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-Jorgensen, Mads P. |
author_facet |
Laidre, Kristin L. Heide-Jorgensen, 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 |
2008 |
url |
http://www.dtic.mil/docs/citations/ADA505241 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA505241 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
baleen whale baleen whales Disko Bay Greenland Sea ice |
genre_facet |
baleen whale baleen whales Disko Bay Greenland Sea ice |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA505241 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766367344660054016 |