Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder
Summary Despite their importance in determining the rate of both energy gain and expenditure, how the fine‐scale kinematics of foraging are modified in response to changes in prey abundance and distribution remain poorly understood in many animal ecosystems. In the marine environment, bulk‐filter fe...
Published in: | Functional Ecology |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/1365-2435.12395 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.12395 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.12395 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 |
id |
crwiley:10.1111/1365-2435.12395 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/1365-2435.12395 2024-06-23T07:51:33+00:00 Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder Goldbogen, Jeremy A. Hazen, Elliott L. Friedlaender, Ari S. Calambokidis, John DeRuiter, Stacy L. Stimpert, Alison K. Southall, Brandon L. Costa, Daniel Office of Naval Research Marine Mammal Program Environmental Readiness Program Chief of Naval Operations US NMFS Channel Islands National Marine Sanctuary 2015 http://dx.doi.org/10.1111/1365-2435.12395 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.12395 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.12395 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Functional Ecology volume 29, issue 7, page 951-961 ISSN 0269-8463 1365-2435 journal-article 2015 crwiley https://doi.org/10.1111/1365-2435.12395 2024-06-11T04:45:34Z Summary Despite their importance in determining the rate of both energy gain and expenditure, how the fine‐scale kinematics of foraging are modified in response to changes in prey abundance and distribution remain poorly understood in many animal ecosystems. In the marine environment, bulk‐filter feeders rely on dense aggregations of prey for energetically efficient foraging. Rorqual whales (Balaenopteridae) exhibit a unique form of filter feeding called lunge feeding, a process whereby discrete volumes of prey‐laden water are intermittently engulfed and filtered. In many large rorqual species the size of engulfed water mass is commensurate with the whale's body size, yet is engulfed in just a few seconds. This filter‐feeding mode thus requires precise coordination of the body and enlarged engulfment apparatus to maximize capture efficiency. Previous studies from whale‐borne tags revealed that many rorqual species perform rolling behaviours when foraging. It has been hypothesized that such acrobatic manoeuvres may be required for efficient prey capture when prey manifest in small discrete patches, but to date there has been no comprehensive analysis of prey patch characteristics during lunge feeding events. We developed a null hypothesis that blue whale kinematics are independent of prey patch characteristics. To test this hypothesis, we investigated the foraging performance of blue whales, the largest filter‐feeding predator and their functional response to variability in their sole prey source, krill using a generalized additive mixed model framework. We used a combination of animal‐borne movement sensors and hydroacoustic prey mapping to simultaneously quantify the three‐dimensional foraging kinematics of blue whales ( Balaenoptera musculus ) and the characteristics of targeted krill patches. Our analyses rejected our null hypothesis, showing that blue whales performed more acrobatic manoeuvres, including 180° and 360° rolling lunges, when foraging on low‐density krill patches. In contrast, whales targeting ... Article in Journal/Newspaper Balaenoptera musculus Blue whale Wiley Online Library Rorqual ENVELOPE(-62.311,-62.311,-65.648,-65.648) Functional Ecology 29 7 951 961 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary Despite their importance in determining the rate of both energy gain and expenditure, how the fine‐scale kinematics of foraging are modified in response to changes in prey abundance and distribution remain poorly understood in many animal ecosystems. In the marine environment, bulk‐filter feeders rely on dense aggregations of prey for energetically efficient foraging. Rorqual whales (Balaenopteridae) exhibit a unique form of filter feeding called lunge feeding, a process whereby discrete volumes of prey‐laden water are intermittently engulfed and filtered. In many large rorqual species the size of engulfed water mass is commensurate with the whale's body size, yet is engulfed in just a few seconds. This filter‐feeding mode thus requires precise coordination of the body and enlarged engulfment apparatus to maximize capture efficiency. Previous studies from whale‐borne tags revealed that many rorqual species perform rolling behaviours when foraging. It has been hypothesized that such acrobatic manoeuvres may be required for efficient prey capture when prey manifest in small discrete patches, but to date there has been no comprehensive analysis of prey patch characteristics during lunge feeding events. We developed a null hypothesis that blue whale kinematics are independent of prey patch characteristics. To test this hypothesis, we investigated the foraging performance of blue whales, the largest filter‐feeding predator and their functional response to variability in their sole prey source, krill using a generalized additive mixed model framework. We used a combination of animal‐borne movement sensors and hydroacoustic prey mapping to simultaneously quantify the three‐dimensional foraging kinematics of blue whales ( Balaenoptera musculus ) and the characteristics of targeted krill patches. Our analyses rejected our null hypothesis, showing that blue whales performed more acrobatic manoeuvres, including 180° and 360° rolling lunges, when foraging on low‐density krill patches. In contrast, whales targeting ... |
author2 |
Costa, Daniel Office of Naval Research Marine Mammal Program Environmental Readiness Program Chief of Naval Operations US NMFS Channel Islands National Marine Sanctuary |
format |
Article in Journal/Newspaper |
author |
Goldbogen, Jeremy A. Hazen, Elliott L. Friedlaender, Ari S. Calambokidis, John DeRuiter, Stacy L. Stimpert, Alison K. Southall, Brandon L. |
spellingShingle |
Goldbogen, Jeremy A. Hazen, Elliott L. Friedlaender, Ari S. Calambokidis, John DeRuiter, Stacy L. Stimpert, Alison K. Southall, Brandon L. Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
author_facet |
Goldbogen, Jeremy A. Hazen, Elliott L. Friedlaender, Ari S. Calambokidis, John DeRuiter, Stacy L. Stimpert, Alison K. Southall, Brandon L. |
author_sort |
Goldbogen, Jeremy A. |
title |
Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
title_short |
Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
title_full |
Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
title_fullStr |
Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
title_full_unstemmed |
Prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
title_sort |
prey density and distribution drive the three‐dimensional foraging strategies of the largest filter feeder |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/1365-2435.12395 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.12395 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.12395 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12395 |
long_lat |
ENVELOPE(-62.311,-62.311,-65.648,-65.648) |
geographic |
Rorqual |
geographic_facet |
Rorqual |
genre |
Balaenoptera musculus Blue whale |
genre_facet |
Balaenoptera musculus Blue whale |
op_source |
Functional Ecology volume 29, issue 7, page 951-961 ISSN 0269-8463 1365-2435 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2435.12395 |
container_title |
Functional Ecology |
container_volume |
29 |
container_issue |
7 |
container_start_page |
951 |
op_container_end_page |
961 |
_version_ |
1802642653263691776 |