Ecological bridges and barriers in pelagic ecosystems

D K Briscoe; A J Hobday; A Carlisle; Kylie L Scales; J P Eveson; H Arrizabalaga; J-N Druon; J-M Formentin

doi:10.1016/j.dsr2.2016.11.004

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Ecological bridges and barriers in pelagic ecosystems

Journal article

Peer reviewed

Ecological bridges and barriers in pelagic ecosystems

D K Briscoe, A J Hobday, A Carlisle, Kylie L Scales, J P Eveson, H Arrizabalaga, J-N Druon and J-M Formentin

Deep Sea Research Part II, Vol.140, pp.182-192

2017

DOI: https://doi.org/10.1016/j.dsr2.2016.11.004

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Abstract

Geochemistry

Oceanography

Ecology

species distribution

migration corridors

population connectivity

oceanographic features

tuna

billfish

marine mammal

Brazilian episode

Many highly mobile species are known to use persistent pathways or corridors to move between habitat patches in which conditions are favorable for particular activities, such as breeding or foraging. In the marine realm, environmental variability can lead to the development of temporary periods of anomalous oceanographic conditions that can connect individuals to areas of habitat outside a population's usual range, or alternatively, restrict individuals from areas usually within their range, thus acting as ecological bridges or ecological barriers. These temporary features can result in novel or irregular trophic interactions and changes in population spatial dynamics, and, therefore, may have significant implications for management of marine ecosystems. Here, we provide evidence of ecological bridges and barriers in different ocean regions, drawing upon five case studies in which particular oceanographic conditions have facilitated or restricted the movements of individuals from highly migratory species. We discuss the potential population-level significance of ecological bridges and barriers, with respect to the life history characteristics of different species, and inter- and intra-population variability in habitat use. Finally, we summarize the persistence of bridge dynamics with time, our ability to monitor bridges and barriers in a changing climate, and implications for forecasting future climate-mediated ecosystem change.

Details

Title: Ecological bridges and barriers in pelagic ecosystems
Authors: D K Briscoe (Author) - Stanford University, United States
A J Hobday (Author) - CSIRO Oceans and Atmosphere
A Carlisle (Author) - Stanford University, United States
Kylie L Scales (Author) - National Oceanic and Atmospheric Administration, United States
J P Eveson (Author) - CSIRO Oceans and Atmosphere
H Arrizabalaga (Author) - Herrera Kaia Portualdea, Spain
J-N Druon (Author) - Maritime Affairs Unit, Italy
J-M Formentin (Author) - Marine Biodiversity, Exploitation & Conservation, France
Publication details: Deep Sea Research Part II, Vol.140, pp.182-192
Publisher: Pergamon
Date published: 2017
DOI: 10.1016/j.dsr2.2016.11.004
ISSN: 0967-0645
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99451168602621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Oceanography

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