NDLI: Effects of Connectivity and Recurrent Local Disturbances on Community Structure and Population Density in Experimental Metacommunities

Content Provider	PubMed Central
Author	Altermatt, Florian Bieger, Annette Carrara, Francesco Rinaldo, Andrea Holyoak, Marcel
Editor	Mouquet, Nicolas
Abstract	Metacommunity theory poses that the occurrence and abundance of species is a product of local factors, including disturbance, and regional factors, like dispersal among patches. While metacommunity ideas have been broadly tested there is relatively little work on metacommunities subject to disturbance. We focused on how localized disturbance and dispersal interact to determine species composition in metacommunities. Experiments conducted in simple two-patch habitats containing eight protozoa and rotifer species tested how dispersal altered community composition in both communities that were disturbed and communities that connected to refuge communities not subject to disturbance. While disturbance lowered population densities, in disturbed patches connected to undisturbed patches this was ameliorated by immigration. Furthermore, species with high dispersal abilities or growth rates showed the fastest post-disturbance recovery in presence of immigration. Connectivity helped to counteract the negative effect of disturbances on local populations, allowing mass-effect-driven dispersal of individuals from undisturbed to disturbed patches. In undisturbed patches, however, local population sizes were not significantly reduced by emigration. The absence of a cost of dispersal for undisturbed source populations is consistent with a lack of complex demography in our system, such as age- or sex-specific emigration. Our approach provides an improved way to separate components of population growth from organisms' movement in post-disturbance recovery of (meta)communities. Further studies are required in a variety of ecosystems to investigate the transient dynamics resulting from disturbance and dispersal.
Related Links	http://dx.doi.org/10.1371/journal.pone.0019525
Starting Page	19525
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	4
Volume Number	6
Language	English
Publisher	Public Library of Science
Publisher Date	2011-04-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Transitory versus Persistent Effects of Connectivity in Environmentally Homogeneous Metacommunities

Spatio-Temporal Environmental Correlation and Population Variability in Simple Metacommunities

Local community size mediates ecological drift and competition in metacommunities

Local and Regional Effects on Community Structure of Dung Beetles in a Mainland-Island Scenario

Local Factors Determine Plant Community Structure on Closely Neighbored Islands

Climate change in metacommunities: dispersal gives double-sided effects on persistence

Changes in Community Structure of Resting State Functional Connectivity in Unipolar Depression

Extinction Debt in Source-Sink Metacommunities

Ecological and Evolutionary Effects of Stickleback on Community Structure

Effects of Connectivity and Recurrent Local Disturbances on Community Structure and Population Density in Experimental Metacommunities

Similar Documents

Transitory versus Persistent Effects of Connectivity in Environmentally Homogeneous Metacommunities

Spatio-Temporal Environmental Correlation and Population Variability in Simple Metacommunities

Local community size mediates ecological drift and competition in metacommunities

Local and Regional Effects on Community Structure of Dung Beetles in a Mainland-Island Scenario

Local Factors Determine Plant Community Structure on Closely Neighbored Islands

Climate change in metacommunities: dispersal gives double-sided effects on persistence

Changes in Community Structure of Resting State Functional Connectivity in Unipolar Depression

Extinction Debt in Source-Sink Metacommunities

Ecological and Evolutionary Effects of Stickleback on Community Structure

Effects of Connectivity and Recurrent Local Disturbances on Community Structure and Population Density in Experimental Metacommunities