The effects of resource enrichment, dispersal, and predation on local and metacommunity structure.

Oecologia
Marc W CadotteTadashi Fukami

Abstract

Community structure is the observable outcome of numerous processes. We conducted a laboratory experiment using a microbial model system to disentangle effects of nutrient enrichment, dispersal, and predation on prey species richness and predator abundance at local and metacommunity scales. Prey species included: Chilomonas sp., Colpidium striatum, Colpoda cucullus, Paramecium tetraurelia, P. caudatum, Philodina sp., Spirostomum sp., Tetrahymena thermophila, and Uronema sp., and Stentor coeruleus was the predator used. We hypothesized that: (1) increased basal resources should maintain greater species richness and higher predator abundance; (2) dispersal should maintain greater species richness; and (3) predation should reduce species richness, especially in the high resource treatments relative to no-predator treatments. Our results support all three hypotheses. Further, we show that dispersal affects richness at the local community scale but not at the metacommunity scale. However, predation seems to have major effects at both the local and metacommunity scale. Overall, our results show that effects of resource enrichment, dispersal, and predation were mostly additive rather than interactive, indicating that it may be sometim...Continue Reading

References

Oct 1, 1977·Theoretical Population Biology·R D Holt
Oct 19, 1999·The American Naturalist·Michel Loreau, Nicolas Mouquet
Feb 15, 1993·Proceedings of the National Academy of Sciences of the United States of America·J T Wootton, M E Power
Jul 15, 2003·The American Naturalist·Jamie M Kneitel, Thomas E Miller
Oct 22, 2003·Proceedings of the National Academy of Sciences of the United States of America·Michel LoreauAndrew Gonzalez
Nov 18, 2003·The American Naturalist·Nicolas Mouquet, Michel Loreau
Jul 10, 2004·Proceedings of the National Academy of Sciences of the United States of America·David Tilman
May 2, 2006·The American Naturalist·Marc William Cadotte
Aug 19, 2008·The American Naturalist·P Amarasekare, R M Nisbet
Aug 19, 2008·The American Naturalist·Nicolas Mouquet, Michel Loreau
Jan 1, 1982·Oecologia·B D Woodward
Jan 1, 1999·The American Naturalist·Brendan J M Bohannan, Richard E Lenski

❮ Previous
Next ❯

Citations

Dec 24, 2011·PloS One·Romana Limberger, Stephen A Wickham
Sep 5, 2014·Proceedings. Biological Sciences·Romana LimbergerGregor F Fussmann
Jan 7, 2015·The American Naturalist·Bart Haegeman, Michel Loreau
Nov 3, 2006·The American Naturalist·Marc William CadotteJames A Drake
May 14, 2010·Ecology·Angela L Strecker, Shelley E Arnott
May 22, 2009·The Journal of Animal Ecology·Kendi F DaviesQuenby Lum
May 26, 2017·The Journal of Animal Ecology·Matthew R Pintar, William J Resetarits
May 8, 2018·Applied and Environmental Microbiology·Eric L Bruger, Christopher M Waters
Oct 21, 2010·Ecology·Jennifer G Howeth, Mathew A Leibold
Sep 14, 2020·The Science of the Total Environment·Nicole Voelker, Christopher M Swan
Sep 4, 2018·Journal of Theoretical Biology·David W ShanafeltCharles Perrings

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.