Home About Browse Search
Svenska


A spatial regime shift from predator to prey dominance in a large coastal ecosystem

Eklof, Johan S. and Sundblad, Göran and Erlandsson, Mårten and Donadi, Serena and Hansen, Joakim P. and Eriksson, Britas Klemens and Bergström, Ulf (2020). A spatial regime shift from predator to prey dominance in a large coastal ecosystem. Communications biology. 3 , 459
[Journal article]

[img] PDF
1MB

Abstract

Regime shifts in ecosystem structure and processes are typically studied from a temporal perspective. Yet, theory predicts that in large ecosystems with environmental gradients, shifts should start locally and gradually spread through space. Here we empirically document a spatially propagating shift in the trophic structure of a large aquatic ecosystem, from dominance of large predatory fish (perch, pike) to the small prey fish, the three-spined stickleback. Fish surveys in 486 shallow bays along the 1200 km western Baltic Sea coast during 1979-2017 show that the shift started in wave-exposed archipelago areas near the open sea, but gradually spread towards the wave-sheltered mainland coast. Ecosystem surveys in 32 bays in 2014 show that stickleback predation on juvenile predators (predator-prey reversal) generates a feedback mechanism that appears to reinforce the shift. In summary, managers must account for spatial heterogeneity and dispersal to better predict, detect and confront regime shifts within large ecosystems.Eklof et al. report a spatially propagating shift in the trophic structure along the western Baltic Sea coast. The authors use fish surveys from 1979-2017 to show a shift from dominance of large predatory fish to the small prey fish, the three-spined stickleback, starting in wave-exposed areas and gradually moving to the wave-sheltered coast.

Authors/Creators:Eklof, Johan S. and Sundblad, Göran and Erlandsson, Mårten and Donadi, Serena and Hansen, Joakim P. and Eriksson, Britas Klemens and Bergström, Ulf
Title:A spatial regime shift from predator to prey dominance in a large coastal ecosystem
Year of publishing :2020
Volume:3
Article number:459
Number of Pages:9
ISSN:2399-3642
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
URN:NBN:urn:nbn:se:slu:epsilon-p-108159
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108159
Additional ID:
Type of IDID
DOI10.1038/s42003-020-01180-0
Web of Science (WoS)000570892100001
ID Code:17838
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:15 Oct 2020 17:00
Metadata Last Modified:16 Oct 2020 05:01

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits