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Relyea, R. A., and D. Rosenberger. 2018. Predator effects on metamorphosis: The effects of scaring versus thinning at high prey densities. Copeia 2018:457-467.

General Information
Data Package:
Local Identifier:edi.1635.1
Title:Relyea, R. A., and D. Rosenberger. 2018. Predator effects on metamorphosis: The effects of scaring versus thinning at high prey densities. Copeia 2018:457-467.
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Organisms with complex life cycles face the challenge of when to switch between habitats and foraging strategies over ontogeny in ways that improve their fitness. Metamorphosis is a well-studied life history event in animals and ecologists have spent decades trying to understand how the size at and time to metamorphosis are altered by natural stressors such as competition and predation. The challenges in interpreting the effects of predators on metamorphic decisions include the need to compare predator species that pose different levels of risk, compare the roles of predators inducing fear versus thinning of the density of prey, and examine prey life history traits and behavior over ontogeny. We addressed these challenges in a mesocosm experiment in which we introduced a high initial density of hatchling Northern Leopard Frogs (Rana pipiens) and exposed them to three different species of caged predators (to induce three different levels of fear), three rates of hand-thinning (to mimic the thinning effect of each predator), or three species of lethal predators (to cause induction and thinning). Under these initial high densities, we found that caged predators had no effects on tadpole activity, growth, and development. This outcome was likely due to the high density of tadpoles causing high competition, which can inhibit anti-predator responses. High rates of hand thinning caused decreased tadpole activity, greater mass, and faster development. Interestingly, lethal predators caused phenotypic changes that were largely in line with the hand thinning effects alone. These results suggest that at high initial prey densities, the thinning process of predation appears plays a much more important role in prey metamorphosis than induction from predatory chemical cues.

Publication Date:2024-05-16
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2005
End:
2005

People and Organizations
Contact:Relyea, Rick A. (Rensselaer Polytechnic Institute) [  email ]
Creator:Relyea, Rick (Professor)
Creator:Rosenberger, Danielle (University of Pittsburgh, Undergraduate student)

Data Entities
Data Table Name:
Archived data
Description:
Leopards frog tadpoles exposed to hand thinning, caged predators, and lethal predators.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1635/1/54930201d745c0e1c035b8053e6c0f00
Name:Archived data
Description:Leopards frog tadpoles exposed to hand thinning, caged predators, and lethal predators.
Number of Records:40
Number of Columns:15

Table Structure
Object Name:Archived data.csv
Size:3432 byte
Authentication:19031ee6b4b30c307839d189efa153d9 Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 TankTreatmentMetamorphsTadpoles%Activity-May 31%Activity-June 14%Activity-June 22Mass-June 1Mass-June 15Mass-June 21Stage-June 1Stage-June 15Stage-June 211/Larval periodMass at metamorphosis
Column Name:Tank  
Treatment  
Metamorphs  
Tadpoles  
%Activity-May 31  
%Activity-June 14  
%Activity-June 22  
Mass-June 1  
Mass-June 15  
Mass-June 21  
Stage-June 1  
Stage-June 15  
Stage-June 21  
1/Larval period  
Mass at metamorphosis  
Definition:Cattle tank mesocosm #Manipulations of treatments# of metamorphs at the end of the experimentNumber of tadpoles remaining at the end of the experimentTadpole activity (% moving) on May 31, 2005Tadpole activity (% moving) on June 14, 2005Tadpole activity (% moving) on June 22, 2005Individual tadpole mass on June 1, 2005Individual tadpole mass on June 15, 2005Individual tadpole mass on June 21, 2005Gosner developmental stage-June 1, 2005Gosner developmental stage-June 15, 2005Gosner developmental stage-June 21, 2005Developmental rate = 1/Larval periodMass at metamorphosis at end of the experiment
Storage Type:float  
string  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Measurement Type:rationominalratioratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
UnitTank #
Typeinteger
Definitiontext
UnitNumber
Typeinteger
UnitNumber
Typeinteger
Unitpercent
Typereal
Unitpercent
Typereal
Unitpercent
Typereal
Unitmilligram
Typereal
Unitmilligram
Typereal
Unitmilligram
Typereal
UnitStage
Typereal
UnitStage
Typereal
UnitStage
Typereal
UnitRate
Typereal
Unitmilligram
Typereal
Missing Value Code:                              
Accuracy Report:                              
Accuracy Assessment:                              
Coverage:                              
Methods:                              

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
(No thesaurus)plasticity, predator, predator cue, amphibian
LTER Controlled Vocabularymorphology

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

See methods in paper:

Relyea, R. A., and D. Rosenberger. 2018. Predator effects on metamorphosis: The effects of scaring versus thinning at high prey densities. Copeia 2018:457-467.

​

People and Organizations

Publishers:
Organization:Environmental Data Initiative
Email Address:
info@edirepository.org
Web Address:
https://edirepository.org
Id:https://ror.org/0330j0z60
Creators:
Individual: Rick Relyea
Position:Professor
Email Address:
rarelyea@gmail.com
Id:https://orcid.org/0000-0001-6693-6950
Individual: Danielle Rosenberger
Organization:University of Pittsburgh
Position:Undergraduate student
Address:
Pittsburgh, PA 15260 US
Contacts:
Individual: Rick A. Relyea
Organization:Rensselaer Polytechnic Institute
Address:
Troy, NY 12180 US
Phone:
5182768342 (voice)
Email Address:
relyer@rpi.edu
Id:https://orcid.org/0000-0001-6693-6950

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
2005
End:
2005
Sampling Site: 
Description:Pymatuning Lab of Ecology
Site Coordinates:
Longitude (degree): -80.456616Latitude (degree): 41.570111
Taxonomic Range:
General Coverage:Northern leopard frogs
Classification:
Rank Name:Species
Rank Value:Rana pipiens

Project

Parent Project Information:

Title:Relyea, R. A., and D. Rosenberger. 2018. Predator effects on metamorphosis: The effects of scaring versus thinning at high prey densities. Copeia 2018:457-467.
Personnel:
Individual: Rick A. Relyea
Organization:Rensselaer Polytechnic Institute
Address:
Troy, NY 12180 US
Phone:
5182768342 (voice)
Email Address:
relyer@rpi.edu
Id:https://orcid.org/0000-0001-6693-6950
Role:PI
Individual: Danielle Rosenberger
Role:Undergraduate assistant

Maintenance

Maintenance:
Description:

Data collection is complete.

Frequency:
Other Metadata

Additional Metadata

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Additional Metadata

additionalMetadata
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        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2024.05.15'
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