LUQ DATA SET METADATA

Long-Term
Ongoing

Data Files and Variables

Data File Identifier Data File Collected
Bisley Watershed 1 Grid Bird Observations less than 25m
text/plain iconBisleyWatershed1_LT_25m.txt
 06/06/1989 - 05/20/1991
Bisley Watershed 1 Grid Bird Observations greater than 25m
text/plain iconBisleyWatershed1_GT_25m.txt
 06/06/1989 - 05/20/1991
El Verde Luquillo Forest Dynamics Plot Birds Observations less than 25m
text/plain iconALL_ElVerde_LT_25m.txt
 05/10/1989 - 05/09/2012
Bisley Cut Plots (Whendee Silver Cut Plots) Bird Observations distance greater than 25m
text/plain iconBisleySilver_Cut_GT_25m.txt
 06/06/1989 - 05/20/1991
Bisley Cut Plots (Whendee Silver Cut Plots) Bird Observations distance less than 25m
text/plain iconBisleySilver_Cut_LT_25m.txt
 06/06/1989 - 05/20/1991
El Verde Luquillo Forest Dynamics Plot Birds Distance Observations greater than 25m
text/plain iconALL_ElVerde_GT_25m.txt
 05/10/1989 - 05/09/2012

Measurements:

Year of collection
Julian day of measurement
Date of observation or monitoring
Observation place
Description of weather
Plot number 1
Plot number 2
Wind Condition code
Rain condition code
Time begun
American Redstart
Black-faced Grassquit
Blue-hooded Euphonia
Blackpoll Warbler
Bananaquit
Black-throated Blue Warbler
Black-throated Green Warbler
Broad-winged Hawk
Black-whiskered Vireo
Black and white Warbler
Caribbean Elaenia
Gray Kingbird
Green Heron
Green Mango
Kentucky Warbler
Lesser Antillean Pewee
Magnolia Warbler
Northern Waterthrush
Black-cowled oriole
Parula Warbler
Pearly-eyed Thrasher
Plain Pegeon
Prairie Warbler
Puerto Rican Bullfinch
Puerto Rico Lizard Cuckoo
Puerto Rican Emerald
Puerto Rican Flycatcher
Puerto Rican Tanager
Puerto Rican Tody
Puerto Rican Woodpecker
Red-legged Thrush
Ruddy Quail-Dove
Red-tailed Hawk
Smooth-billed Ani
Puerto Rican Screech Owl
Stripe-headed Tanager
Scaly-naped Pigeon
unknown species
Unidentified warbler
Unidentified waterthrush
White-eyed Vireo
White-winged Dove
Yellow-faced Grassquit
Total Individuals found
23
Bird abundance - point counts

Research Sites:

El Verde Research Area 9-ha plot Grid transect
Luquillo Forest Dynamics Plot (LFDP)
Bisley Research Area Watershed 1 Grid points
Bisley Study Area Lower Tower transects: Lower Cut Plot at Bisley (Whendee Silver's plot)
Bisley Study Area Lower Tower transects: Upper Cut Plot at Bisley (Whendee Silver's plot)

Methods:

Circular plot counts are used to measure relative numbers of birds over time and between sites. The duration of each count is 10 minutes. During this period, all birds heard or seen are recorded on a data sheet in one of two categories: 1) within 25 m of the observer (< 25 m) and 2) further than 25m from the observer (> 25 m). Records are further broken down into birds only heard (H on the data sheet) and birds observed (recorded as estimated distance from the sampling point in meters; see sample data sheet).

Abstract

Circular plot counts are used to measure relative numbers of birds over time and between sites. The duration of each count is 10 minutes. During this period, all birds heard or seen are recorded on a data sheet in one of two categories: 1) within 25 m of the observer (< 25 m) and 2) further than 25m from the observer (> 25 m). Records are further broken down into birds only heard (H on the data sheet) and birds observed (recorded as estimated distance from the sampling point in meters; see sample data sheet). Counts are begun as soon after dawn as possible and conclude before noon. Census points are at least 60 m apart within the grids. A complete list of the grid points where counts are taken is found in the data. Originally counts were conducted three times a year.

Additional Information:

Historical records of this data set editions (Upload File)

List of Publications:

The food web of a tropical rain forest
Summary of response of animal populations to hurricanes in the Caribbean
The effect of Hurricane Hugo on bird populations in the Luquillo Experimental Forest, Puerto Rico

Related Project:

Owner:

Robert B. Waide

Contact(s):

Robert B. Waide

Researcher's Keywords:

circular plots
Luquillo Experimental Forest (LEF)
Luquillo
Puerto Rico
Greater Antilles
Caribbean
Sites
Sites Projects Programs
populations
Population ecology
food web
Community dynamics
Ecological phenomena processes
vertebrates
birds
Chordata (or vertebrata)
Animals

LTER Vocab Keywords:

populations
food webs
organizational units
birds
vertebrates
macrofauna
fauna
animals
organisms

LTER Core Area(s):

populations

Complete Metadata:

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