Disturbance‐driven alteration of patch connectivity determines local biodiversity recovery within metacommunities DOI Creative Commons
Claire Jacquet, François Munoz, Núria Bonada

et al.

Ecography, Journal Year: 2022, Volume and Issue: 2022(12)

Published: Oct. 21, 2022

Understanding the capacity of ecological systems to withstand and recover from disturbances is a major challenge for research in context environmental changes. Past has mostly focused on local effects biodiversity recovery, while alterations inter‐patch connectivity induced by have received comparatively less attention. Here, we investigated effect recovery within metacommunities. Our specific focus was drying river networks, which are characterised high variability patch connectivity. We found marked variations among sites groups organisms with contrasting dispersal modes, were explained amount loss due events. Local communities flying recovered more efficiently events than strictly aquatic former group overcome hydrological loss. As general rule, decreases community regardless location network, mode or spatial extent. The relationship between networks applicable any network

Language: Английский

Two classes of functional connectivity in dynamical processes in networks DOI Creative Commons
Venetia Voutsa, Demian Battaglia, Louise J. Bracken

et al.

Journal of The Royal Society Interface, Journal Year: 2021, Volume and Issue: 18(183)

Published: Oct. 1, 2021

The relationship between network structure and dynamics is one of the most extensively investigated problems in theory complex systems recent years. Understanding this relevance to a range disciplines—from neuroscience geomorphology. A major strategy investigating quantitative comparison representation architecture (structural connectivity, SC) with (network) (functional FC). Here, we show that can distinguish two classes functional connectivity—one based on simultaneous activity (co-activity) nodes, other sequential nodes. We delineate these different categories dynamical processes—excitations, regular chaotic oscillators—and provide examples for SC/FC correlations both each models. expand theoretical view relationships, conceptual instances SC FC various application scenarios geomorphology, ecology, biology, socio-ecological systems. Seeing organisation processes either as governed by co-activity or allows us bring some order myriad observations relating function networks.

Language: Английский

Citations

17
Aspects of flow variability and spatial context predict temporal beta diversity in river metacommunities DOI
Parsa Saffarinia,

Ryan M. Conway,

Kurt E. Anderson

et al.

Freshwater Science, Journal Year: 2024, Volume and Issue: 43(2), P. 140 - 149

Published: March 1, 2024

River catchments are dynamic networks that contain multiple levels of spatial and temporal complexity. Benthic macroinvertebrates key indicator taxa throughout catchments, beta diversity has been used as a metric to explore determinants community composition at the catchment scale. Although factors influencing have explored, understudied. In this study, we aimed understand how shifts in benthic macroinvertebrate over years related local regional variables. We regression with large, publicly available biomonitoring dataset from river California, USA, model effects environmental variables, flow variability, network context on diversity. The variables channel slope, drainage density, upstream area had strongest relationships Channel slope was negatively diversity, whereas density were positively Temporal also higher when rate magnitude rises falls hydrograph, well number zero-flow days duration higher. Overall, our results indicate freshwater is shaped by both long-term hydrological these may serve better predictors variability than point estimates measurements. Our study supports need for efforts long timescales highlights consider metacommunity change management systems.

Language: Английский

Citations

2
Resource flow network structure drives meta-ecosystem function DOI
Tianna Peller, Isabelle Gounand,

Florian Altermatt

et al.

The American Naturalist, Journal Year: 2024, Volume and Issue: 204(6), P. 546 - 560

Published: Aug. 22, 2024

Previous articleNext article No AccessResource flow network structure drives meta-ecosystem functionTianna Peller, Isabelle Gounand, and Florian AltermattTianna AltermattPDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookxLinkedInRedditEmailPrint SectionsMoreDetailsFiguresReferencesCited by The American Naturalist Just Accepted Published for Society of Naturalists Article DOIhttps://doi.org/10.1086/732812 PermissionsRequest permissions © 2024 University Chicago. All Rights reserved.PDF download Crossref reports no articles citing this article.

Language: Английский

Citations

2
Small giants: Tributaries rescue spatially structured populations from extirpation in a highly fragmented stream DOI Creative Commons
Jun‐ichi Tsuboi, Kentaro Morita, Yusuke Koseki

et al.

Journal of Applied Ecology, Journal Year: 2022, Volume and Issue: 59(8), P. 1997 - 2009

Published: May 10, 2022

Abstract Habitat fragmentation is a pervasive threat to biodiversity. Linearly arranged habitats such as stream networks are particularly vulnerable fragmentation. As the landscape becomes increasingly human dominated, conservation values of fragmented habitat patches cannot be overlooked. It critical understand demographic mechanisms population persistence or extirpation in patches. We studied dynamics spatially structured populations two Japanese landlocked salmonids persisting for >30 years headwater network that highly due low‐head dams mainstem. parameterised and analysed spatial matrix models using 9‐year mark–recapture data. Tributaries supported higher survival rates some life stages, movement was asymmetrical from tributaries Accordingly, growth were tributary than mainstem both species despite occupying only 12% 18% study by surface area. The harboured more physically hydraulically complex instream (i.e. wood density flow refugia), indicating patch quality important size determining these populations. Tributary locations trajectory upstream‐dwelling charr persisted six impassable infrastructures <500 m patch) immigration fish upstream including tributary. However, downstream‐dwelling salmon has been gradually extirpated uppermost section because they could not maintain positive rate after loss emigrants accounted prevented Synthesis applications . conclude small have rescued (charr) at least slowed down (salmon). Legal protection headwaters aquatic weak globally. Our results suggest management plans underestimating value will likely fail conserve inhabitants therefore endanger discuss implications this related connectivity fisheries management.

Language: Английский

Citations

11
Disturbance‐driven alteration of patch connectivity determines local biodiversity recovery within metacommunities DOI Creative Commons
Claire Jacquet, François Munoz, Núria Bonada

et al.

Ecography, Journal Year: 2022, Volume and Issue: 2022(12)

Published: Oct. 21, 2022

Understanding the capacity of ecological systems to withstand and recover from disturbances is a major challenge for research in context environmental changes. Past has mostly focused on local effects biodiversity recovery, while alterations inter‐patch connectivity induced by have received comparatively less attention. Here, we investigated effect recovery within metacommunities. Our specific focus was drying river networks, which are characterised high variability patch connectivity. We found marked variations among sites groups organisms with contrasting dispersal modes, were explained amount loss due events. Local communities flying recovered more efficiently events than strictly aquatic former group overcome hydrological loss. As general rule, decreases community regardless location network, mode or spatial extent. The relationship between networks applicable any network

Language: Английский

Citations

11