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Miguel B. Araújo Lab

Predicting the effects of environmental change on biodiversity

You are here: Home / Research Highlights / The effect of multiple biotic interaction types on species persistence

The effect of multiple biotic interaction types on species persistence

  • Ecology (2018 )
  • Authors: David García‐Callejas Roberto Molowny‐Horas & Miguel B. Araújo
  • Link to article: http://macroecointern.dk/pdf-reprints/Garc%EDa-Callejas_Ecology_2018.pdf

No species can persist in isolation from other species, but how biotic interactions affect species persistence is still a matter of inquiry. Is persistence more likely in communities with higher proportion of competing species, or in communities with more positive interactions? How do different components of community structure mediate this relationship? We address these questions using a novel simulation framework that generates realistic communities with varying numbers of species and different proportions of biotic interaction types within and across trophic levels. We show that when communities have fewer species, persistence is more likely if positive interactions—such as mutualism and commensalism—are prevalent. In species‐rich communities, the disproportionate effect of positive interactions on persistence is diluted and different combinations of biotic interaction types can coexist without affecting persistence significantly. We present the first theoretical examination of how multiple‐interaction networks with varying architectures relate to local species persistence, and provide insight about the underlying causes of stability in communities.

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News

  • Dangerous levels of subterranean water consumption
  • Welcome Nuria Galiana
  • Miguel Araújo identified as Highly Cited 2020
  • Biophilia Award to The Guardian
  • FBBVA Biodiversity Conservation Awards - 15th edition

Outreach

  • The future of coastlands in the era of mega hurricanes
  • What will 2021 bring for biodiversity and conservation?
  • Presentation of CORESCAM project
  • Discriminating climate, land‐cover and random effects on species range dynamics
  • Talk to representatives of ministries of CPLP

Opportunities

  • First call AQUACOSM-PLUS
  • La Caixa Foundation PhD studentship on climate change and protected areas
  • Two Post docs: Ecology & Conservation
  • Post-doc: Effects of climate change extremes on Caribbean biodiversity
  • Post doc - Modelling the effects of climate change extremes on Caribbean biodiversity

Research Highlights

The evolution of critical thermal limits of life on Earth

Climate shapes community trophic structures and humans simplify them

The marine fish food web is globally connected

Standards for data and models in biodiversity assessments

The effect of multiple biotic interaction types on species persistence

Books

Ecological Niches and Geographic Distributions

Ecological Niches and Geographic Distributions

Atlas of Biodiversity Risk

Atlas of Biodiversity Risk

Spatial Conservation Prioritization

Spatial Conservation Prioritization

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