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Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest

Research output: Journal contributions › Journal articles › Research › peer-review

Standard

Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest. / Schuldt, Andreas; Staab, Michael.
In: Biotropica, Vol. 47, No. 3, 01.05.2015, p. 339-346.

Research output: Journal contributions › Journal articles › Research › peer-review

Harvard

Schuldt, A & Staab, M 2015, 'Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest', Biotropica, vol. 47, no. 3, pp. 339-346. https://doi.org/10.1111/btp.12209

APA

Schuldt, A., & Staab, M. (2015). Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest. Biotropica, 47(3), 339-346. https://doi.org/10.1111/btp.12209

Vancouver

Schuldt A, Staab M. Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest. Biotropica. 2015 May 1;47(3):339-346. doi: 10.1111/btp.12209

Bibtex

@article{584fcd8af155409a94863bda7535c5fc,
title = "Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest",
abstract = "In species-rich ecosystems, such as subtropical and tropical forests, higher trophic level interactions are key mediators of ecosystem functioning. Plant species loss may alter these interactions, but the effects of plant diversity might be modified by intraguild interactions, particularly among predators. We analyzed the relationships between spiders and ants, two dominant predatory arthropod taxa, on tree saplings across a gradient from medium to high woody plant species richness in a subtropical forest in Southeast China. Neither ant nor spider total biomass was significantly related to plant species richness. By contrast, the biomass distribution of web-building and hunting spiders changed and spider family richness increased in the presence of ants, resulting in more web builder-dominated assemblages. However, these relationships depended on the plant communities, and were stronger in plots with higher plant species richness. Our results indicate that in addition to potential effects of ants on hunting spiders in particular, ants could indirectly influence intraguild interactions within spider assemblages. The observed shifts in the spider assemblages with increasing ant presence and plant species richness may have functional consequences, as web-building and hunting spiders have distinct prey spectra. The relationships among ants, spiders, and plant species richness might contribute to explaining the non-significant relationship between the overall effects of predators and plant diversity previously observed in the same forest plots. Our findings thus give insight into the complexity of biotic interactions in such species-rich ecosystems.",
keywords = "Ecosystems Research, Biodiversit{\"a}t, Arthropods, BEF-China, Biodiversity, Ecosystem function, Intraguild interactions, Predators, Trophic interactions",
author = "Andreas Schuldt and Michael Staab",
year = "2015",
month = may,
day = "1",
doi = "10.1111/btp.12209",
language = "English",
volume = "47",
pages = "339--346",
journal = "Biotropica",
issn = "1744-7429",
publisher = "Wiley-Blackwell Publishing Ltd.",
number = "3",

}

RIS

TY - JOUR

T1 - Tree species richness strengthens relationships between ants and the functional composition of spider assemblages in a highly diverse forest

AU - Schuldt, Andreas

AU - Staab, Michael

PY - 2015/5/1

Y1 - 2015/5/1

N2 - In species-rich ecosystems, such as subtropical and tropical forests, higher trophic level interactions are key mediators of ecosystem functioning. Plant species loss may alter these interactions, but the effects of plant diversity might be modified by intraguild interactions, particularly among predators. We analyzed the relationships between spiders and ants, two dominant predatory arthropod taxa, on tree saplings across a gradient from medium to high woody plant species richness in a subtropical forest in Southeast China. Neither ant nor spider total biomass was significantly related to plant species richness. By contrast, the biomass distribution of web-building and hunting spiders changed and spider family richness increased in the presence of ants, resulting in more web builder-dominated assemblages. However, these relationships depended on the plant communities, and were stronger in plots with higher plant species richness. Our results indicate that in addition to potential effects of ants on hunting spiders in particular, ants could indirectly influence intraguild interactions within spider assemblages. The observed shifts in the spider assemblages with increasing ant presence and plant species richness may have functional consequences, as web-building and hunting spiders have distinct prey spectra. The relationships among ants, spiders, and plant species richness might contribute to explaining the non-significant relationship between the overall effects of predators and plant diversity previously observed in the same forest plots. Our findings thus give insight into the complexity of biotic interactions in such species-rich ecosystems.

AB - In species-rich ecosystems, such as subtropical and tropical forests, higher trophic level interactions are key mediators of ecosystem functioning. Plant species loss may alter these interactions, but the effects of plant diversity might be modified by intraguild interactions, particularly among predators. We analyzed the relationships between spiders and ants, two dominant predatory arthropod taxa, on tree saplings across a gradient from medium to high woody plant species richness in a subtropical forest in Southeast China. Neither ant nor spider total biomass was significantly related to plant species richness. By contrast, the biomass distribution of web-building and hunting spiders changed and spider family richness increased in the presence of ants, resulting in more web builder-dominated assemblages. However, these relationships depended on the plant communities, and were stronger in plots with higher plant species richness. Our results indicate that in addition to potential effects of ants on hunting spiders in particular, ants could indirectly influence intraguild interactions within spider assemblages. The observed shifts in the spider assemblages with increasing ant presence and plant species richness may have functional consequences, as web-building and hunting spiders have distinct prey spectra. The relationships among ants, spiders, and plant species richness might contribute to explaining the non-significant relationship between the overall effects of predators and plant diversity previously observed in the same forest plots. Our findings thus give insight into the complexity of biotic interactions in such species-rich ecosystems.

KW - Ecosystems Research

KW - Biodiversität

KW - Arthropods

KW - BEF-China

KW - Biodiversity

KW - Ecosystem function

KW - Intraguild interactions

KW - Predators

KW - Trophic interactions

UR - http://www.scopus.com/inward/record.url?scp=84928430131&partnerID=8YFLogxK

U2 - 10.1111/btp.12209

DO - 10.1111/btp.12209

M3 - Journal articles

VL - 47

SP - 339

EP - 346

JO - Biotropica

JF - Biotropica

SN - 1744-7429

IS - 3

ER -

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DOI