Data Set (knb-lter-mcr.2009.1)

MCR LTER: Coral Reef: Growth and Survivorship of Dascyllus trimaculatus

  Summary and Data Links People and Organizations Temporal, Geographic and Taxonomic Coverage Methods and Protocols  
Data Set General Information:
Identifier: knb-lter-mcr.2009.1 (in the knb Catalog System)
Alternate Identifier: knb-lter-mcr.2009
Abstract:

The influence of density-dependent and number-dependent processes on individual demographic rates often results in ecological tradeoffs. Because such processes have important implications for individual level fitness and population regulation, they long have been an important topic in ecological research. I used Dascyllus trimaculatus, a site-attached planktivorous coral reef fish, to determine independently the effects of population density and group size on rates of individual growth and mortality. Somatic growth of D. trimaculatus was positively related to the density of D. trimaculatus outplanted to host anenomes, Heteractis magnifica, with nearly twice as much growth observed in individuals living in the highest density treatment. By contrast, survivorship of D. trimaculatus on H. magnifica exhibited a negative relationship with density. There was no significant effect of group size on either the growth or mortality rates of D. trimaculatus. These relationships suggest a tradeoff between density-dependent growth and survival in this species.

My analysis of behavioral data indicated that D. trimaculatus living under conditions of higher local population densities displayed decreased rates of intraspecific aggression because of positive feedback between local population density and the foraging distance from an individual’s host anemone. In turn, lower rates of aggression and feeding higher in the water column resulted in increased somatic growth rates due to: (1) a reduced energy expenditure and (2) an increase in prey consumption.

These data are part of a Master's Thesis published by ProQuest: Nielsen, Jessica Anne. Effects of density on behaviorally-mediated tradeoffs between growth and survivorship. MA Thesis, University of California Santa Barbara, 2013.

Short Name: Damselfish thesis
Publication Date: 2014-05-27
Language: english
Time Period:
Begin:
2012-07-21
End:
2012-09-04
Detailed Data Description and Download:
D. trimaculatus growth
Relative growth of individual D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus survivorship
Daily survivorship data for D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus foraging distance
Foraging distance for D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus aggression rates
Aggression rates for D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus feeding rates
Feeding rates for D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus vigilance
Vigilance values for D. trimaculatus during an experiment testing the effects of density and group size
D. trimaculatus prey abundance
Prey abundance present in the gut contents of individual D. trimaculatus at the termination of an experiment testing the effects of density and group size
People and Organizations:
View complete information for all parties
Contact: Information Manager (Moorea Coral Reef LTER) [  email ]
Organization Moorea Coral Reef LTER
Owner: Nielsen, Jessica (Moorea Coral Reef LTER) 

Data Set Citation

How to cite this dataset: Nielsen, J of Moorea Coral Reef LTER. 2014. MCR LTER: Coral Reef: Growth and Survivorship of Dascyllus trimaculatus. knb-lter-mcr.2009.1

To request a DOI, send an email request for more information about this package's identifiers to use in a citation.

Key Words and Terms

By Thesaurus:
Demographics, LTER, MCR, Moorea Coral Reef LTER
Institute, Organization, or Funding Agency California State University Northridge, Gordon and Betty Moore Foundation, NSF, Richard B. Gump South Pacific Research Station, University of California Santa Barbara
French Polynesia, Moorea
KNB Community, Marine
NBII Biocomplexity Thesaurus Abundance (organisms), Demography, Fishes, Growth, Populations
LTER Network Controlled Vocabulary abundance, aquatic, population dynamics
LTER Core Research Area Populations

Data Set Usage Rights

Data collected under the auspices of the MCR LTER are available to the public after primary publication, or at most two years after the completion of the study unless proprietary restrictions are warranted. Use of MCR LTER data is subject to acceptance of the following conditions:

  • 1. The user agrees to provide valid name and contact information prior to downloading online data. This information will be used to contact the user in case of changes to the data, and may also be used by data set authors and MCR LTER project administrators to document data usage.
  • 2. The user agrees to cite the data set author and MCR LTER in all publications in which the data are used, as per the instructions in the data documentation. If no specific instructions are provided in the data documentation, the user is requested to include the following statement: "Data sets were provided by the Moorea Coral Reef Ecosystem LTER, funded by the US National Science Foundation (OCE-0417412)."
  • 3. The user agrees to provide one copy of any manuscript based on MCR LTER data to the data set author prior to submitting it for publication.
  • 4. The user agrees to send two hard copies of any published manuscript based on MCR LTER data to the following address: Dr. Andrew J. Brooks Deputy Program Director, MCR LTER Marine Science Institute University of California Santa Barbara, CA 93106-6150 The user also agrees to send one electronic copy (pdf format) to the following e-mail address: brooks@msi.ucsb.edu
  • 5. Users are prohibited from selling or redistributing any data provided by MCR LTER without explicit prior permission.
  • 6. Users are encouraged to contact original investigators responsible for data. Where appropriate, researchers whose projects are integrally dependent on MCR LTER data are encouraged to consider collaboration and/or co-authorship with original investigators.
  • 7. Extensive efforts are made to ensure that online data are accurate and up to date, but the authors and the MCR LTER will not take responsibility for any errors that may exist in data provided online. Furthermore, the user assumes all responsibility for errors in analysis or judgment resulting from use of the data.
  • 8. Any violation of the terms of this agreement will result in immediate forfeiture of the data and loss of access privileges to other MCR LTER data sets.

Additional Metadata

View the original XML file (in Ecological Metadata Language) Viewable in Oxygen XML Editor