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Plant species loss decreases arthropod diversity and shifts trophic structure.
Ecol Lett. 2009 Oct; 12(10):1029-39.EL

Abstract

Plant diversity is predicted to be positively linked to the diversity of herbivores and predators in a foodweb. Yet, the relationship between plant and animal diversity is explained by a variety of competing hypotheses, with mixed empirical results for each hypothesis. We sampled arthropods for over a decade in an experiment that manipulated the number of grassland plant species. We found that herbivore and predator species richness were strongly, positively related to plant species richness, and that these relationships were caused by different mechanisms at herbivore and predator trophic levels. Even more dramatic was the threefold increase, from low- to high-plant species richness, in abundances of predatory and parasitoid arthropods relative to their herbivorous prey. Our results demonstrate that, over the long term, the loss of plant species propagates through food webs, greatly decreasing arthropod species richness, shifting a predator-dominated trophic structure to being herbivore dominated, and likely impacting ecosystem functioning and services.

Authors+Show Affiliations

Department of Biology, North Carolina State University, Box 7617, Raleigh, NC 27695 7617, USA. nick_haddad@ncsu.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19702636

Citation

Haddad, Nick M., et al. "Plant Species Loss Decreases Arthropod Diversity and Shifts Trophic Structure." Ecology Letters, vol. 12, no. 10, 2009, pp. 1029-39.
Haddad NM, Crutsinger GM, Gross K, et al. Plant species loss decreases arthropod diversity and shifts trophic structure. Ecol Lett. 2009;12(10):1029-39.
Haddad, N. M., Crutsinger, G. M., Gross, K., Haarstad, J., Knops, J. M., & Tilman, D. (2009). Plant species loss decreases arthropod diversity and shifts trophic structure. Ecology Letters, 12(10), 1029-39. https://doi.org/10.1111/j.1461-0248.2009.01356.x
Haddad NM, et al. Plant Species Loss Decreases Arthropod Diversity and Shifts Trophic Structure. Ecol Lett. 2009;12(10):1029-39. PubMed PMID: 19702636.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Plant species loss decreases arthropod diversity and shifts trophic structure. AU - Haddad,Nick M, AU - Crutsinger,Gregory M, AU - Gross,Kevin, AU - Haarstad,John, AU - Knops,Johannes M H, AU - Tilman,David, Y1 - 2009/08/21/ PY - 2009/8/26/entrez PY - 2009/8/26/pubmed PY - 2009/11/18/medline SP - 1029 EP - 39 JF - Ecology letters JO - Ecol. Lett. VL - 12 IS - 10 N2 - Plant diversity is predicted to be positively linked to the diversity of herbivores and predators in a foodweb. Yet, the relationship between plant and animal diversity is explained by a variety of competing hypotheses, with mixed empirical results for each hypothesis. We sampled arthropods for over a decade in an experiment that manipulated the number of grassland plant species. We found that herbivore and predator species richness were strongly, positively related to plant species richness, and that these relationships were caused by different mechanisms at herbivore and predator trophic levels. Even more dramatic was the threefold increase, from low- to high-plant species richness, in abundances of predatory and parasitoid arthropods relative to their herbivorous prey. Our results demonstrate that, over the long term, the loss of plant species propagates through food webs, greatly decreasing arthropod species richness, shifting a predator-dominated trophic structure to being herbivore dominated, and likely impacting ecosystem functioning and services. SN - 1461-0248 UR - https://www.unboundmedicine.com/medline/citation/19702636/Plant_species_loss_decreases_arthropod_diversity_and_shifts_trophic_structure_ L2 - https://doi.org/10.1111/j.1461-0248.2009.01356.x DB - PRIME DP - Unbound Medicine ER -