Uncovering patterns of freshwater positive interactions using meta‐analysis: Identifying the roles of common participants, invasive species and environmental context
Autor: | Benjamin B. Tumolo, Laura A. Burkle, Jose A. Sanchez‐Ruiz, Lindsey K. Albertson, Zachary Maguire, Michael J. MacDonald, Jaris Veneros, Michelle A. Briggs, Sierra Quinn |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Mutualism (biology) Ecology 010604 marine biology & hydrobiology Stressor Fresh Water 15. Life on land Biology 010603 evolutionary biology 01 natural sciences Invasive species Habitat Meta-analysis mental disorders Facilitation Humans Human Activities Ecosystem Marine ecosystem 14. Life underwater Introduced Species psychological phenomena and processes Ecology Evolution Behavior and Systematics |
Zdroj: | Ecology Letters. 24:594-607 |
ISSN: | 1461-0248 1461-023X |
Popis: | Positive interactions are sensitive to human activities, necessitating synthetic approaches to elucidate broad patterns and predict future changes if these interactions are altered or lost. General understanding of freshwater positive interactions has been far outpaced by knowledge of these important relationships in terrestrial and marine ecosystems. We conducted a global meta-analysis to evaluate the magnitude of positive interactions across freshwater habitats. In 340 studies, we found substantial positive effects, with facilitators increasing beneficiaries by, on average, 81% across all taxa and response variables. Mollusks in particular were commonly studied as both facilitators and beneficiaries. Amphibians were one group benefiting the most from positive interactions, yet few studies investigated amphibians. Invasive facilitators had stronger positive effects on beneficiaries than non-invasive facilitators. We compared positive effects between high- and low-stress conditions and found no difference in the magnitude of benefit in the subset of studies that manipulated stressors. Future areas of research include understudied facilitators and beneficiaries, the stress gradient hypothesis, patterns across space or time and the influence of declining taxa whose elimination would jeopardise fragile positive interaction networks. Freshwater positive interactions occur among a wide range of taxa, influence populations, communities and ecosystem processes and deserve further exploration. |
Databáze: | OpenAIRE |
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