Local and landscape drivers of aquatic-to-terrestrial subsidies in riparian ecosystems: a worldwide meta-analysis

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Local and landscape drivers of aquatic-to-terrestrial subsidies in riparian ecosystems : a worldwide meta-analysis. / Lafage, D.; Bergman, E.; Eckstein, R. L.; Österling, E. M.; Sadler, J. P.; Piccolo, J. J.

In: Ecosphere, Vol. 10, No. 4, e02697, 09.04.2019.

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Lafage, D. ; Bergman, E. ; Eckstein, R. L. ; Österling, E. M. ; Sadler, J. P. ; Piccolo, J. J. / Local and landscape drivers of aquatic-to-terrestrial subsidies in riparian ecosystems : a worldwide meta-analysis. In: Ecosphere. 2019 ; Vol. 10, No. 4.

Bibtex

@article{a12d8ec6018646e688faad8ab2558836,
title = "Local and landscape drivers of aquatic-to-terrestrial subsidies in riparian ecosystems: a worldwide meta-analysis",
abstract = "Cross-boundary fluxes of organisms and matter, termed “subsidies,” are now recognized to be reciprocal and of roughly equal importance for both aquatic and terrestrial systems, even if terrestrial input to aquatic ecosystems has received most attention. The magnitude of aquatic-to-terrestrial subsidies is well documented, but the drivers behind these subsidies and their utilization by terrestrial consumers are characteristically local-scale studies, limiting the inferences that can be drawn for broader geographic scales. We therefore built and analyzed a database of stable isotope data extracted from 21 studies worldwide, to identify both landscape-scale (catchment) and local-scale (100-m riparian zone) variables that may affect the diet of terrestrial predators in riparian ecosystems. Our meta-analysis revealed a greater magnitude of aquatic-to-terrestrial subsidies (>50%) than previously reported, albeit with large geographic and inter-annual variations. Moreover, we demonstrated a large effect of landscape-scale factors on aquatic-to-terrestrial subsidies, particularly anthropogenic land use and tree cover. Local human population was the only relevant factor at the local scale. We also found that studies on landscape-scale and anthropogenic land use effects on aquatic-to-terrestrial subsidies are strongly under-represented in the ecological literature, which limits the general inferences that can currently be drawn about landscape effects. We suggest that landscape-scale studies could improve our understanding of how land use and environmental change might influence future patterns of biodiversity and ecosystem function.",
keywords = "anthropogenic land use, aquatic subsidies, diet, human population, stable isotopes, terrestrial predators",
author = "D. Lafage and E. Bergman and Eckstein, {R. L.} and {\"O}sterling, {E. M.} and Sadler, {J. P.} and Piccolo, {J. J.}",
year = "2019",
month = apr
day = "9",
doi = "10.1002/ecs2.2697",
language = "English",
volume = "10",
journal = "Ecosphere",
issn = "2150-8925",
publisher = "Ecological Society of America",
number = "4",

}

RIS

TY - JOUR

T1 - Local and landscape drivers of aquatic-to-terrestrial subsidies in riparian ecosystems

T2 - a worldwide meta-analysis

AU - Lafage, D.

AU - Bergman, E.

AU - Eckstein, R. L.

AU - Österling, E. M.

AU - Sadler, J. P.

AU - Piccolo, J. J.

PY - 2019/4/9

Y1 - 2019/4/9

N2 - Cross-boundary fluxes of organisms and matter, termed “subsidies,” are now recognized to be reciprocal and of roughly equal importance for both aquatic and terrestrial systems, even if terrestrial input to aquatic ecosystems has received most attention. The magnitude of aquatic-to-terrestrial subsidies is well documented, but the drivers behind these subsidies and their utilization by terrestrial consumers are characteristically local-scale studies, limiting the inferences that can be drawn for broader geographic scales. We therefore built and analyzed a database of stable isotope data extracted from 21 studies worldwide, to identify both landscape-scale (catchment) and local-scale (100-m riparian zone) variables that may affect the diet of terrestrial predators in riparian ecosystems. Our meta-analysis revealed a greater magnitude of aquatic-to-terrestrial subsidies (>50%) than previously reported, albeit with large geographic and inter-annual variations. Moreover, we demonstrated a large effect of landscape-scale factors on aquatic-to-terrestrial subsidies, particularly anthropogenic land use and tree cover. Local human population was the only relevant factor at the local scale. We also found that studies on landscape-scale and anthropogenic land use effects on aquatic-to-terrestrial subsidies are strongly under-represented in the ecological literature, which limits the general inferences that can currently be drawn about landscape effects. We suggest that landscape-scale studies could improve our understanding of how land use and environmental change might influence future patterns of biodiversity and ecosystem function.

AB - Cross-boundary fluxes of organisms and matter, termed “subsidies,” are now recognized to be reciprocal and of roughly equal importance for both aquatic and terrestrial systems, even if terrestrial input to aquatic ecosystems has received most attention. The magnitude of aquatic-to-terrestrial subsidies is well documented, but the drivers behind these subsidies and their utilization by terrestrial consumers are characteristically local-scale studies, limiting the inferences that can be drawn for broader geographic scales. We therefore built and analyzed a database of stable isotope data extracted from 21 studies worldwide, to identify both landscape-scale (catchment) and local-scale (100-m riparian zone) variables that may affect the diet of terrestrial predators in riparian ecosystems. Our meta-analysis revealed a greater magnitude of aquatic-to-terrestrial subsidies (>50%) than previously reported, albeit with large geographic and inter-annual variations. Moreover, we demonstrated a large effect of landscape-scale factors on aquatic-to-terrestrial subsidies, particularly anthropogenic land use and tree cover. Local human population was the only relevant factor at the local scale. We also found that studies on landscape-scale and anthropogenic land use effects on aquatic-to-terrestrial subsidies are strongly under-represented in the ecological literature, which limits the general inferences that can currently be drawn about landscape effects. We suggest that landscape-scale studies could improve our understanding of how land use and environmental change might influence future patterns of biodiversity and ecosystem function.

KW - anthropogenic land use

KW - aquatic subsidies

KW - diet

KW - human population

KW - stable isotopes

KW - terrestrial predators

UR - http://www.scopus.com/inward/record.url?scp=85065024924&partnerID=8YFLogxK

U2 - 10.1002/ecs2.2697

DO - 10.1002/ecs2.2697

M3 - Article

AN - SCOPUS:85065024924

VL - 10

JO - Ecosphere

JF - Ecosphere

SN - 2150-8925

IS - 4

M1 - e02697

ER -