Plant sex influences on riparian communities and ecosystems

Scheuerell, River P.; LeRoy, Carri J.

doi:10.1002/ece3.10308

Ecology and Evolution

2023

DOI: 10.1002/ece3.10308

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Plant sex influences on riparian communities and ecosystems

River P. Scheuerell,

Carri J. LeRoy

Abstract: Over the past several decades, we have increased our understanding of the influences of plant genetics on associated communities and ecosystem functions.These influences have been shown at both broad spatial scales and across many plant families, creating an active subdiscipline of ecology research focused on genes-to-

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Cited by 3 publications

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Belowground ecological interactions in dioecious plants: why do opposites attract but similar ones repel?

Xia,

Chen,

Korpelainen

et al. 2024

Trends in Plant Science

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Belowground ecological interactions in dioecious plants: why do opposites attract but similar ones repel?

Xia,

Chen,

Korpelainen

et al. 2024

Trends in Plant Science

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Insect Herbivores, Plant Sex, and Elevated Nitrogen Influence Willow Litter Decomposition and Detritivore Colonization in Early Successional Streams

LeRoy,

Heitmann,

Thompson

et al. 2024

Forests

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Headwater streams are reliant on riparian tree leaf litterfall to fuel brown food webs. Terrestrial agents like herbivores and contaminants can alter plant growth, litter production, litter quality, and the timing of litterfall into streams, influencing aspects of the brown food web. At Mount St. Helens (USA), early successional streams are developing willow (Salix sitchensis) riparian zones. The willows are attacked by stem-boring herbivores, altering litter quality and the timing of litterfall. Within a established experimental plots, willows (male and female plants) were protected from herbivores using insecticides and provided with experimental additions of nitrogen. This enabled us to test the interacting influences of herbivores, nitrogen deposition, and willow sex on leaf litter quality, aquatic litter decomposition, and microbial and invertebrate detritivores. We found weak litter quality effects (higher N and lower C:N) for the herbivore treatment, but no effect of nitrogen deposition. Although litter decomposition rates were not strongly affected by litter treatments, detritivore communities were altered by all treatments. Nitrogen deposition resulted in decreased bacterial richness and decreased fungal diversity in-stream. Aquatic macroinvertebrate communities were influenced by the interacting effects of herbivory and nitrogen addition, with abundances highest in herbivore litter with the greatest N addition. Shredders showed the highest abundance in male, herbivore-attacked litter. The establishment of riparian willows along early successional streams and their interacting effects with herbivores and nitrogen deposition may be influencing detritivore community assembly at Mount St. Helens. More broadly, global changes like increased wet and dry N deposition and expanded ranges of key herbivores might influence tree litter decomposition in many ecosystems.

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Responses of dioecious <i>Populus</i> to heavy metals: a meta-analysis

Yu,

Tang,

Kang

et al. 2023

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Plant sex influences on riparian communities and ecosystems

Cited by 3 publications

References 316 publications

Belowground ecological interactions in dioecious plants: why do opposites attract but similar ones repel?

Belowground ecological interactions in dioecious plants: why do opposites attract but similar ones repel?

Insect Herbivores, Plant Sex, and Elevated Nitrogen Influence Willow Litter Decomposition and Detritivore Colonization in Early Successional Streams

Responses of dioecious <i>Populus</i> to heavy metals: a meta-analysis

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