Model‐based impact analysis of climate change and land‐use intensification on trophic networks DOI Creative Commons
Christian Neumann, Tuanjit Sritongchuay, Ralf Seppelt

et al.

Ecography, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

There is well‐established evidence that land use the main driver of terrestrial biodiversity loss. In contrast, combined effects land‐use and climate changes on food webs, particularly trophic networks, are understudied. this study, we investigate change (temperature, precipitation) intensification webs using a process‐based general mechanistic ecosystem model (‘MadingleyR'). We simulated dynamics four regions in different climatic zones (Brazil, Namibia, Finland France) according to trait‐based functional groups species (ectothermic endothermic herbivores, carnivores omnivores). The simulation results were consistent across selected regions, with negatively affecting endotherms, whereas ectotherms under increased pressure from rising temperatures. Land‐use led downsizing thus, smaller organisms web. combination change, had greatest effect higher levels, culminating extinction Namibia omnivores Namibia. Arid tropical showed slightly response total biomass high‐emissions scenario temperatures, areas low net primary productivity most negative intensification. Our suggest 1) further will significantly affect larger predators, leading major restructuring global webs. 2) low‐productivity experience significant community composition due change. 3) Climate appear have greater arid climates, tends less productive environments. This paper shows how models deepen our understanding multitrophic interactions or drivers ecosystems biomes.

Language: Английский

Global Projection of Terrestrial Vertebrate Food Webs Under Future Climate and Land‐Use Changes DOI Open Access
Xiyang Hao, Marcel Holyoak, Zhicheng Zhang

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(2)

Published: Feb. 1, 2025

ABSTRACT Food webs represent an important nexus between biodiversity and ecosystem functioning, yet considering changes in food around the world has been limited by data availability. Previous studies have predicted web collapses coextinction, but structure less investigated under climate warming anthropogenic pressures on a global scale. We systematically amassed information about species' diets, traits, distributions, habitat use, phylogenetics real used machine learning to predict meta‐food of terrestrial vertebrates land‐use changes. By year 2100, vertebrate are expected decrease size 32% trophic links 49%. Projections declines over 25% modularity, predator generality, diversity groups. Increased dispersal could ameliorate these trends indicate disproportionate vulnerability regional webs. Unlike many previous studies, this work combines extensive empirical with advanced modeling techniques, providing more detailed spatially explicit prediction how will respond Overall, our study predicts undergo drastic heterogeneous structural

Language: Английский

Citations

1
Vulnerability of terrestrial vertebrate food webs to anthropogenic threats in Europe DOI Creative Commons
Louise O’Connor, Francesca Cosentino, Michael Harfoot

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(3)

Published: March 1, 2024

Abstract Vertebrate species worldwide are currently facing significant declines in many populations. Although we have gained substantial knowledge about the direct threats that affect individual species, these only represent a fraction of broader vertebrate threat profile, which is also shaped by interactions. For example, faced prey can jeopardize survival their predators due to food resource scarcity. Yet, indirect arising from interactions received limited investigation thus far. In this study, investigate consequences anthropogenic on biodiversity context European webs. We integrated data trophic among over 800 terrestrial vertebrates, along with associated human‐induced threats. quantified and mapped vulnerability various components web, including interactions, groups six major threats: pollution, agricultural intensification, climate change, exploitation, urbanization, invasive alien diseases. Direct exploitation intensification were two for webs: affecting 34% 31% respectively, they threaten 85% 69% Europe. By integrating network ecology impact assessments, our study contributes better understanding magnitude impacts biodiversity.

Language: Английский

Citations

4
Future of Food Webs: The Role of Biotic Interactions in Predicting the Impact of Climate and Land Use Change DOI
Anett Endrédi

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(4)

Published: April 1, 2025

Language: Английский

Citations

0
Spatially explicit predictions of food web structure from regional-level data DOI
Gabriel Dansereau, Ceres Barros, Timothée Poisot

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1909)

Published: July 22, 2024

Knowledge about how ecological networks vary across global scales is currently limited given the complexity of acquiring repeated spatial data for species interactions. Yet, recent developments in metawebs highlight efficient ways to first document possible interactions within regional pools. Downscaling towards local network predictions a promising approach using current investigate variation space. However, issues remain represent variability and uncertainty interactions, especially large-scale food webs. Here, we present probabilistic framework downscale metaweb based on Canadian mammal occurrences from databases. We investigated our can be used communities between ecoregions Canada. Species richness followed similar latitudinal gradient but simultaneously identified contrasting diversity hotspots. Network motifs revealed additional areas structure compared with number links. Our method offers potential bring down more actionable scale, increases that projected This article part theme issue 'Connected interactions: enriching web research by social interactions'.

Language: Английский

Citations

2
Habitat Suitability of European Land Systems for Terrestrial Vertebrates DOI Creative Commons
Louise O’Connor, Julien Renaud, Yue Dou

et al.

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(11)

Published: Aug. 19, 2024

ABSTRACT Motivation Accurate estimates of species distributions are crucial for biogeography, spatial conservation, and assessing the impacts human activities on species. However, existing approaches to estimate have typically neglected influence land use intensity, potentially overlooking negative high‐intensity uses biodiversity. Here, we build a dataset documenting habitat suitability European systems terrestrial vertebrate species, based novel system map Europe that factors in intensity. Our database offers refined up‐to‐date information by explicitly considering Main Types Variables Contained We created table defining classes as habitats each then built Area Habitat (AOH) maps filtering out unsuitable from latest available ranges. AOH were compared with occurrence records Global Biodiversity Information Facility (GBIF). Processed datasets R scripts publicly online, facilitating our approach refine expert‐based other taxa, classifications regions worldwide. Spatial Location Grain The cover extent Union (EU) United Kingdom, Norway, Switzerland, Western Balkans. at 1 km 2 resolution. Time Period published during last 10 years. Major Taxa Level Measurement was documented 1155 known occur Europe: 279 mammals, 520 birds, 251 reptiles 104 amphibians. Software Format provide comma‐separated values (csv) format. raster files. accessible GitHub.

Language: Английский

Citations

1
Applying a method before its proof of concept: A cautionary tale using inferred food webs DOI Open Access
Chris Brimacombe, Korryn Bodner, Marie‐Josée Fortin

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(6)

Published: May 31, 2024

There are significant pitfalls associated with developing food webs using inferred approaches, including violations of ecological assumptions, which considerably undermine their potentiality to resemble communities and hence be practically useful. As data‐driven scientists, we must, at the very least, test against some empirical data establish confidence that indeed reflect supposed in situ communities. Otherwise, networks make bold claims—like titular statement by Botella et al. (2024) influenced land‐use intensity—is highly unlikely useful, especially when aforementioned claim is unsubstantiated Authors' own statistical analyses.

Language: Английский

Citations

0
Are threatened species important for glueing interaction networks together? DOI Creative Commons
Pamela González‐del‐Pliego, Núria Galiana, Juan David González‐Trujillo

et al.

Perspectives in Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

0
Global projection of terrestrial vertebrate food webs under future climate and land-use changes DOI Creative Commons
Chuan Yan, Xiyang Hao, Marcel Holyoak

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 29, 2024

Abstract Food webs represent an important nexus between biodiversity, ecological communities and ecosystem functioning, they could be radically changed by anthropogenic climate change habitat loss. Considering changes in food around the world has been limited data availability, we systematically amassed information about species’ diet, traits, distributions, use, phylogenetics used machine learning to predict global local meta-food of terrestrial vertebrates. Terrestrial vertebrate are expected greatly end this century. Future will smaller more densely connected, with systematic declines predator generality diversity across trophic groups. Decreases food-web modularity connectance make vulnerable propagation extinctions. Increased species' dispersal ameliorate these trends. Overall, face increased risks collapse from land-use change, posing significant challenges biodiversity conservation.

Language: Английский

Citations

0
Model‐based impact analysis of climate change and land‐use intensification on trophic networks DOI Creative Commons
Christian Neumann, Tuanjit Sritongchuay, Ralf Seppelt

et al.

Ecography, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

There is well‐established evidence that land use the main driver of terrestrial biodiversity loss. In contrast, combined effects land‐use and climate changes on food webs, particularly trophic networks, are understudied. this study, we investigate change (temperature, precipitation) intensification webs using a process‐based general mechanistic ecosystem model (‘MadingleyR'). We simulated dynamics four regions in different climatic zones (Brazil, Namibia, Finland France) according to trait‐based functional groups species (ectothermic endothermic herbivores, carnivores omnivores). The simulation results were consistent across selected regions, with negatively affecting endotherms, whereas ectotherms under increased pressure from rising temperatures. Land‐use led downsizing thus, smaller organisms web. combination change, had greatest effect higher levels, culminating extinction Namibia omnivores Namibia. Arid tropical showed slightly response total biomass high‐emissions scenario temperatures, areas low net primary productivity most negative intensification. Our suggest 1) further will significantly affect larger predators, leading major restructuring global webs. 2) low‐productivity experience significant community composition due change. 3) Climate appear have greater arid climates, tends less productive environments. This paper shows how models deepen our understanding multitrophic interactions or drivers ecosystems biomes.

Language: Английский

Citations

0