LUQ DATA SET METADATA

Completed

Data Files and Variables

Data File Identifier Data File Collected
Pre-Hugo Bisley Grid Frog Data
text/plain iconbisgridfrog.txt
 06/01/1989

Measurements:

Date
Grid X Coordinate
Grid Y Coordinate
Quantity of frogs found
Area studied
Density of frogs
30
Frog grid data (Bisley)

Research Sites:

Bisley Research Area Watersheds 2 Grid points

Methods:

Data were collected in the 35 points on the grid of the Bisley watersheds plots in the tabonuco forest in the LEF . Points in the grid are 40 m distant in all directions, and an arbitrary subset of points were sampled based on accesibility.

Abstract

Population estimates from 1987 to 1995 are reported for the terrestrial anuran, Eleutherodactylus coqui, from four long-term study plots in the Luquillo Experimental Forest of northeastern Puerto Rico. The major factor influencing population size during this time was Hurricane Hugo, which deposited much of the canopy onto the forest floor in 1989. Population densities since Hurricane Hugo have been influenced by succession, with continued high densities associated with thickets of Cecropia and Heliconia. Trefalls, which are similar to hurricanes on a local scale, also were shown to influence population sizes. Years with prolonged dry periods reduced numbers of juvenile frogs, but rainfall patterns alone did not explain most population variation. Population levels of invertebrate predators were related to variation in frog numbers.

List of Publications:

The impact of Hurricane Hugo on forest frogs in Puerto Rico
Disturbance influences long-term populationpatterns in the Puerto Rican frog, Eleutherodactylus coqui (Anura: Leptodactylidae)
Local extinctions of anuran amphibians in the Luquillo Experimental Forest of North eastern Puerto Rico

Related Project:

Owner:

Lawrence L. Woolbright

Contact(s):

Lawrence L. Woolbright

Researcher's Keywords:

Luquillo
Puerto Rico
Greater Antilles
Caribbean
Sites
Sites Projects Programs
population density
abundance
Population ecology
Ecological phenomena processes
disturbance
Disturbance and Land Use
leptodactylidae
eleutherodactylus
anura
coqui
frogs
amphibians
Chordata (or vertebrata)
Animals

LTER Vocab Keywords:

disturbance
processes
populations
organizational units
amphibians
vertebrates
animals
organisms
land use
spatial properties
abundance
population and community properties
measurements

LTER Core Area(s):

populations

Complete Metadata:

  • Frog grid data (Bisley)

    The basic information about a dataset

    Basic Information

    Program: 
    Luquillo LTER
    Luquillo Investigator Research
    Numeric Dataset ID: 
    30
    Data Set Identifier: 
    Frog grid data (Bisley)
    Duration: 
    Completed
    Abstract: 

    Population estimates from 1987 to 1995 are reported for the terrestrial anuran, Eleutherodactylus coqui, from four long-term study plots in the Luquillo Experimental Forest of northeastern Puerto Rico. The major factor influencing population size during this time was Hurricane Hugo, which deposited much of the canopy onto the forest floor in 1989. Population densities since Hurricane Hugo have been influenced by succession, with continued high densities associated with thickets of Cecropia and Heliconia. Trefalls, which are similar to hurricanes on a local scale, also were shown to influence population sizes. Years with prolonged dry periods reduced numbers of juvenile frogs, but rainfall patterns alone did not explain most population variation. Population levels of invertebrate predators were related to variation in frog numbers.

    Short name: 
    LUQMetadata30
    Project Title: 
    Core Area: 
    populations
    Researchers´ Keywords: 
    Luquillo
    Puerto Rico
    Greater Antilles
    Caribbean
    Sites
    Sites Projects Programs
    population density
    abundance
    Population ecology
    Ecological phenomena processes
    disturbance
    Disturbance and Land Use
    leptodactylidae
    eleutherodactylus
    anura
    coqui
    frogs
    amphibians
    Chordata (or vertebrata)
    Animals
    LTER Keyword Assignment: 
    disturbance
    processes
    populations
    organizational units
    amphibians
    vertebrates
    animals
    organisms
    land use
    spatial properties
    abundance
    population and community properties
    measurements
    2006 Proposal Classification: 
    Vertebrates
    Table 4 Long-Term Classification: 
    animals
    Data File Structure Reference: 
    Pre-Hugo Bisley Grid Frog Data
    Station Acronym: 
    LUQ
    Data File Structure Referrer: 
    Bibliography: 
    The impact of Hurricane Hugo on forest frogs in Puerto Rico
    Disturbance influences long-term populationpatterns in the Puerto Rican frog, Eleutherodactylus coqui (Anura: Leptodactylidae)
    Local extinctions of anuran amphibians in the Luquillo Experimental Forest of North eastern Puerto Rico

    Personnel

    Owner: 
    Lawrence L. Woolbright
    Contact: 
    Lawrence L. Woolbright
    Data Manager: 
    Eda Melendez-Colom

    Georefs, Dates

    Publication Date: 
    04/11/2011
    Site: 
    Bisley Research Area Watersheds 2 Grid points
    Collected: 
    06/01/1989

    Methods

    Methods: 

    Data were collected in the 35 points on the grid of the Bisley watersheds plots in the tabonuco forest in the LEF . Points in the grid are 40 m distant in all directions, and an arbitrary subset of points were sampled based on accesibility.

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