Data Package Metadata View Summary

Relyea, R. A. 2000. Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation. Ecology 81:2278-2289.

General Information

Data Package:

Local Identifier:

edi.1698.1

Title:

Relyea, R. A. 2000. Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation. Ecology 81:2278-2289.

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Ecologists recently have been focusing on the role that trait-mediated indirect

effects can have on community structure and composition. To date, this work has primarily

focused on the effects of predator-induced behavioral plasticity on communities. However,

predator-induced morphological plasticity, which has been documented in many taxa, might

also lead to trait-mediated indirect effects. Here, I examined how predators altered the

behavior and morphology of larval wood frogs (Rana sylvatica) and leopard frogs (R.

pipiens) and how these phenotypic changes altered the outcome of competition between

the two species.

Competition in the absence of caged predators was asymmetric; when reared separately,

leopard frogs grew more than wood frogs, but when competing (without predators), wood

frogs grew faster than leopard frogs. The presence of caged predators reversed the outcome

of competition between the two anuran prey. In the presence of larval dragonflies (Anax

spp.) or caged mudminnows (Umbra limi), leopard frogs grew faster than wood frogs while

total tadpole biomass production remained unchanged. Thus, there was a predator-mediated

indirect effect.

Because predators alter both the behavior and morphology of larval anurans and both

of these traits are known to affect resource consumption and growth, both are potential

mechanisms to explain the change in competitive outcome. Changes in behavior were not

related to changes in growth, but changes in morphology (specifically mouth width and

tail length) were related to changes in growth. When competitors were added (without

predators), wood frogs increased their mouth width by 10% and their tail length by 3%,

while leopard frogs increased their mouth width by 5% and did not change their tail length.

The greater increase in mouth width for wood frogs should increase their forage intake,

since tadpoles feed by scraping periphyton; the importance of a 3% longer tail in competitive

ability is unknown. The presence of the predator threat (via chemical cues from the caged

predators) reduced both the mouth width and tail length in the two prey species to precompetition

levels. This response corresponded with the reduced competitive ability of the

wood frogs. This work demonstrates that both competitors and predators can alter prey

morphology and suggests that changes in morphology can cause trait-mediated indirect

effects.

Publication Date:

2024-06-28

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

1995

End:

1995

People and Organizations
Contact:	Relyea, Rick A. (Rensselaer Polytechnic Institute) [ email ]
Creator:	Relyea, Rick A. (Rensselaer Polytechnic Institute)

Data Entities
Data Table Name:	Archived data - Survivorship & growth
Description:	Wood frog and leopard frog survivorship and growth
Data Table Name:	Archived data - Leopard morphology
Description:	Leopard frog morphology
Data Table Name:	Archived data - Wood morphology
Description:	Wood frog morphology

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1698/1/440a7aca5d8cb0ee4edb52992bb1aed3
Name:	Archived data - Survivorship & growth
Description:	Wood frog and leopard frog survivorship and growth
Number of Records:	40
Number of Columns:	6

Table Structure

Object Name:

Archived data - Survivorship & growth.csv

Size:

1244 byte

Authentication:

81b83fbed83f2a583245a498aab0e6be Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Treatment

Species

Block

Survivorship

Growth rate

Production

Column Name:

Treatment

Species

Block

Survivorship

Growth rate

Production

Definition:

Competition treatments

Species

Experimental blocks

Tadpole survivorship

Tadpole daily growth rate

Total tadpole production

Storage Type:

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	L
Definition	Leopard frogs alone
Source

Code Definition

Code	W
Definition	Wood frogs alone
Source

Code Definition

Code	WL
Definition	Woods + Leopards
Source

Code Definition

Code	WL-A
Definition	Woods + Leopards with Anax
Source

Code Definition

Code	WL-AF
Definition	Woods + Leopards with Anax and fish
Source

Code Definition

Code	WL-F
Definition	Woods + Leopards with fish
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Leopard
Definition	Leopard frogs
Source

Code Definition

Code	Wood
Definition	Wood frogs
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	A
Definition	Block A
Source

Code Definition

Code	B
Definition	Block B
Source

Code Definition

Code	C
Definition	Block C
Source

Code Definition

Code	D
Definition	Block D
Source

Unit	percent
Type	real

Unit	mg/d
Type	real

Unit	mg
Type	real

Missing Value Code:

Code	-
Expl	Thrown out

Code	-
Expl	Thrown out

Code	-
Expl	Thrown out

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1698/1/42023e9ed3f8fdc428cdf0465c6e709e
Name:	Archived data - Leopard morphology
Description:	Leopard frog morphology
Number of Records:	18
Number of Columns:	11

Table Structure

Object Name:

Archived data - Leopard morphology.csv

Size:

1556 byte

Authentication:

eadeeebc6404cdbd0ba289b0ca0ca918 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

BLOCK

TRT

TAIL_DEP

TAIL_LEN

MUSC_DEP

MUSC_WID

BODY_DEP

BODY_LEN

BODY_WID

DEN_LEN

DEN_WID

Column Name:

BLOCK

TRT

TAIL_DEP

TAIL_LEN

MUSC_DEP

MUSC_WID

BODY_DEP

BODY_LEN

BODY_WID

DEN_LEN

DEN_WID

Definition:

Experimental blocks

Treatments

Mass-adjusted tail fin depth

Mass-adjusted tail fin length

Mass-adjusted tail muscle depth

Mass-adjusted tail muscle width

Mass-adjusted body depth

Mass-adjusted body length

Mass-adjusted body width

Mass-adjusted denticle length

Mass-adjusted denticle width

Storage Type:

float

string

float

Measurement Type:

ratio

nominal

ratio

Measurement Values Domain:

Unit	number
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	Leopard frogs alone
Source

Code Definition

Code	2
Definition	Woods + Leopards
Source

Code Definition

Code	3
Definition	Woods + Leopards with Anax
Source

Code Definition

Code	4
Definition	Woods + Leopards with fish
Source

Code Definition

Code	5
Definition	Woods + Leopards with Anax and fish
Source

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1698/1/c2dc2998b2b1c9a4e860c0f90ef92171
Name:	Archived data - Wood morphology
Description:	Wood frog morphology
Number of Records:	18
Number of Columns:	11

Table Structure

Object Name:

Archived data - Wood morphology.csv

Size:

1556 byte

Authentication:

b89b6d84f3a2248f3d9b6f6f9d90e714 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

BLOCK

TRT

TAIL_DEP

TAIL_LEN

MUSC_DEP

MUSC_WID

BODY_DEP

BODY_LEN

BODY_WID

DEN_LENG

DEN_WID

Column Name:

BLOCK

TRT

TAIL_DEP

TAIL-LEN

MUSC_DEP

MUSC_WID

BODY_DEP

BODY_LEN

BODY_WID

DEN_LENG

DEN_WID

Definition:

Experimental blocks

Treatments

Mass-adjusted tail fin depth

Mass-adjusted tail fin length

Mass-adjusted tail muscle depth

Mass-adjusted tail muscle width

Mass-adjusted body depth

Mass-adjusted body length

Mass-adjusted body width

Mass-adjusted denticle length

Mass-adjusted denticle width

Storage Type:

float

string

float

Measurement Type:

ratio

nominal

ratio

Measurement Values Domain:

Unit	number
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	1
Definition	Leopard frogs alone
Source

Code Definition

Code	2
Definition	Woods + Leopards
Source

Code Definition

Code	3
Definition	Woods + Leopards with Anax
Source

Code Definition

Code	4
Definition	Woods + Leopards with fish
Source

Code Definition

Code	5
Definition	Woods + Leopards with Anax and fish
Source

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

Unit	log (mm)
Type	real

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)	tadpole, behavior, phenotypic plasticity
LTER Controlled Vocabulary	predation, competition

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:

All methods are detailed in the publication:

Relyea, R. A. 2000. Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation. Ecology 81:2278-2289.

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 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

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:

1995

End:

1995

Sampling Site:

Description:

ESGR, Pinckney, MI

Site Coordinates:

Longitude (degree):

-84.011594

Latitude (degree):

42.458391

Taxonomic Range:

Classification:

Rank Name:	Species
Rank Value:	Rana pipiens

Taxonomic Range:

Classification:

Rank Name:	Species
Rank Value:	Rana sylvatica

Project

Parent Project Information:

Title:

Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation

Personnel:

Individual:	Relyea
Id:	https://orcid.org/0000-0001-6693-6950
Role:	Grad student

Additional Award Information:

Funder:	NSF grant to E. E. Werner
Title:	NSF grant DEB-9119948.

Maintenance

Maintenance:

Description:	All data are final.
Frequency:

Other Metadata

Additional Metadata

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Additional Metadata

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        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
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Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Relyea, R. A. 2000. Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation. Ecology 81:2278-2289.

Data Entities

Data Table

Data Table

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

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

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Relyea, R. A. 2000. Trait-mediated indirect effects in larval anurans: Reversing competition with the threat of predation. Ecology 81:2278-2289.

+/- Data Entities

Data Table

Data Table

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

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

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata

Additional Metadata