A DATA SET is a series of observations collected by the same methodology. Each data set should have documentation sufficient for someone unfamiliar with the research to replicate the study. Data sets may be broken into subsets (data files) that are discrete in space and time, in that order. The documentation for a data set should include all spatial and temporal subdivisions of the data.

(Data, Abstract, Methods, Variables)

NOTES:

• Add rows to tables or lines to paragraphs as you need them for entering your data.
• Contact emelendez@lternet.edu, if you have any question.

PERSON(S) COMPLETING THIS FORM: E-MAIL ADDRESS:

DATA SET IDENTIFIER: Bird abundance - point counts

PROJECT TITLE: Long-term monitoring at 40 points in the LFDP/ Avian populations long-term monitoring

PROJECT DESCRIPTION: The project is part of the study of the resilience of populations after multiple disturbances. This study uses long-term population measurements of key species as a baseline to evaluate changes in populations in response to disturbance. The distribution of counts at 40 points in the Luquillo Forest Dynamics Plot allows correlation of population changes at each point with changes in plant and animal species and abundance at the same point.

LTER CORE AREAS: (Annotate all that apply)

Population Dynamics

LEF LTER 1 RESEARCH TOPIC: (Annotate all that apply)

Spatial and temporal distribution of populations

We define a data file as a component of a data set. A data set can have only one data file or more. Basically, different data files have different data structures or format.
DATA SET FILES (SUBSETS):

Data File No.	Data File Identifier	On-Line Filename	Starting Date	Periodicity of sample	End Period
1	El Verde Luquillo Forest Dynamics Plot birds observations distance less than 25m	ALL_ElVerde_LT_25m.txt	May 10, 1989	once anually	May 24, 2010
2	El Verde Luquillo Forest Dynamics Plot birds observations distance greater than 25m	ALL_ElVerde_GT_25m.txt	May 10, 1989	once anually	May 24, 2010
3	Bisley Watershed 1birds observations distance less than 25m	BisleyWatershed1_LT_25m.txt	June 6, 1989	once anually	May 20, 1991
4	Bisley Watershed 1birds observations distance greater than 25m	BisleyWatershed1_GT_25m.txt	June 6, 1989	once anually	May 20, 1991
5	Bisley Cut Plots (Whendee Silver Plots) birds observations distance less than 25m	BisleySilver_Cut_LT_25m.txt	May 31, 1989	once anually	May 20, 1991
6	Bisley Cut Plots (Whendee Silver Plots) birds observations distance greater than 25m	BisleySilver_Cut_GT_25m.txt	May 31, 1989	once anually	February 28, 1990

RESEARCH LOCATION: El Verde 9Ha plots (1989-90 only); Luquillo Fortest Dynamics Plot (LFDP- from 1990 until present), Bisley grid

INVESTIGATORS:

PRINCIPAL INVESTIGATORS E-MAIL address

Robert B. Waide

rwaide@lternet.edu

Other Researchers E-MAIL address

CONTACT PERSONS E-MAIL address Phone Number (Include area code)

Robert B. Waide

(505) 463-5294

rwaide@lternet.edu

SOURCE OF FUNDING (SPONSOR): NSF/LTER

DATA SET ABSTRACT: Measurements of bird abundance are taken annually or more frequently in the 9 ha grid (5/89 to 6/90) and Luquillo Forest Dynamics Plot (10/90 to present) at El Verde, in Bisley Watershed 1and 2, and in Whendee Silver’s cut plots at Bisley.

DATA SET METHODS: Repeated fixed-radius, circular plot counts are used to measure changes in numbers of birds over time and differences between sites. Counts are begun as soon after dawn as light levels permit and conclude before noon. 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). For additional details see Waide 1991.

At El Verde, the first four counts in 1989-1990 were conducted at 33 points in a 9 ha grid in the El Verde Research Area. Beginning in October, 1990, counts were conducted at 40 points in a 16 ha grid (Luquillo Forest Dynamics Plot [LFDP]; Thompson et al. 2002). Although the 9 ha grid was contained in the 16 ha grid, the sampling points were different in the two grids. Census points were at least 60 m apart within the grids. Initially, counts at El Verde were conducted in three seasons each year, but were later reduced to two and then one census per year.

Counts in Bisley were conducted on a grid spanning two small watersheds whose total area was 13.04 ha (Scatena 1989).

Counts were also conducted in two small plots in the Bisley Watersheds where all the vegetation was cut as part of an experiment for Whendee Silver’s dissertation (Silver and Vogt 1993).

Note: the historical records of the editions made to these dataq is in a downloadable file

REFERENCES:

CROSS-REFERENCES (other data sets related to this one):
LTERDBAS 119 - Census of species, diameter and location at the Luquillo Forest Dynamics Plot (LFDP), Puerto Rico
LTERDBAS 107 - El Verde Grid invertebrate data
LTERDBAS 31 - 40 X 40 grid vegetation and site characteristics. (Bisley, 1988)
LTERDBAS 46 - Elevation at grid points on the Luquillo Forest Dynamics Plot (LFDP), Puerto Rico
LTERDBAS 47 - Physical environment of the Luquillo Forest Dynamics Plot (LFDP), Puerto Rico

SAMPLE LOCATION: N/A

STORAGE SITES (of data files): LTER file 57.67; ITES, Data Mngr.'s Cabinet DM333-01, Drawer #3

INVESTIGATOR'S ASSIGNED KEYWORDS: birds, population, food web, circular plots, vertebrates

LEF LTER OFFICIAL KEYWORDS (See table): 9HA GRID, SILVER (12), LFDP (EV Big Grid), BISLEY WATERSHEDS (Q1), TABONUCO, POPULATION DYNAMICS, BIRDS, BOOK CHAPTER, PEER REVIEWED JOURNAL

PUBLICATIONS:
Reagan, D.P. and R.B. Waide, editors. 1996. The food web of a tropical rain forest. University of Chicago Press, Chicago, Illinois.

Waide, R.B. 1991. Summary of response of animal populations to hurricanes in the Caribbean. Biotropica 23:508-512.

Waide, R.B. 1991. The effect of Hurricane Hugo on bird populations in the Luquillo Experimental Forest, Puerto Rico. Biotropica 23:475-480

DISSEMINATION: UNRESTRICTED

REASONS TO RESTRICT DATA IN THIS DATA SET BEYOND ITS TWO YEAR POLICY PERIOD*:

*WILL HAVE TO BE APPROVED BY LTER PRINCIPAL INVESTIGATORS: N. BROKAW, A. LUGO

FILING
___ "File" copy only : Data Management will only file an electronic copy of the data file and its documentation
X "Enter" data on-line : Data Management will be in charge of entering the data on computer files (Contact Eda C. Meléndez

SITES DESCRIPTIONS:

Geographical positional system (GPS) Coordinates for each location:

location	latitude	longitude
9 Ha Grid Transects
El Verde Study Area (Luquillo Forest Dynamics Plot - LFDP)	18° 19' 26" N	65° 49' 3" W
Bisley study area (watersheds #1)
Bisley Silver cut Plots

VARIABLES (ATTRIBUTES):

1FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	YEAR	JULIAN	DATE	PLACE	WEATHER	PLOT1
NAME OF VARIABLE	Year	Julian day	Date	Location	Weather	Plot number 1
DEFINITION OF VARIABLE	Yearof the observation	An integer from 1 to 366 representing the day of the year	Date of the observation (mm/dd/yy)	Research area or plot	Observed condition of sky	First number identifying grid post at sampling point
UNIT
PRECISION
RANGE OR LIST OF VALUES		1,...,366		EL VERDE = El Verde 9 ha from 1989 to 1990 OR El Verde Luquillo Forest Dynamics Plot (LFDP) from 1990 until present; BISLEY = Bisley grid; SILVER = Bisley Cut Plots	CLO = More than 25% cloud cover; PCL = 0-25% cloud cover; CLE = No clouds, indirect sun; SUN = No clouds, direct sun	9 ha grid = A, C, E, G, I, K; LFDP = 3, 6, 9, 12, 15; Bisley = 40, 80, 100, 120, 160, 180, 200, 220, 240, 260, 280, 340, 360; several unique point identifiers; Bisley Cut Plots = 1, 2, 2A
DATA TYPE	integer	integer	datetime	alphanumeric	alphabetic	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

VARIABLES (ATTRIBUTES):

3FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All		All
ABBREVIATION(as it appears on the data file)	BHEUP	BLAWA	BQUIT	BTBLW	BTGNW	BWINH
NAME OF VARIABLE	Blue-hooded Euphonia	Blackpoll Warbler	Bananaquit	Black-throated Blue Warbler	Black-throated Green Warbler	Broad-winged Hawk
DEFINITION OF VARIABLE	Number of individuals seen or heard	Number of Blackpoll Warbler individuals seen or heard	Number of Bananaquit individuals seen or heard	Number of Black-throated Blue Warbler individuals seen or heard	Number of Black-throated Green Warbler individuals seen or heard	Number of individuals seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

VARIABLES (ATTRIBUTES):

5FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	GRMAN	KENWA	LAPEW	MAGWA	NOWAT
NAME OF VARIABLE	Green Mango	Kentucky Warbler	Lesser Antillean Pewee	Magnolia Warbler	Northern Waterthrush
DEFINITION OF VARIABLE	Number of Green Mango individuals seen or heard	Number of Kentucky Warbler individuals seen or heard	Number of Lesser Antillean Pewee individuals seen or heard	Number of Magnolia Warbler individuals seen or heard	Number of Northern Waterthrush individuals seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

6FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	ORIOL	PARUW	PETER	PLPIG	PRAIW	PRBUL	PRCUC
NAME OF VARIABLE	Black-cowled oriole	Parula Warbler	Pearly-eyed Thrasher	Plain Pigeon	Prairie Warbler	Puerto Rican Bullfinch	Puerto Rico Lizard Cuckoo
DEFINITION OF VARIABLE	Number of Black-cowled oriole individuals seen or heard	Number of Parula Warbler individuals seen or heard (before also identified as NPARW)	Number of Pearly-eyed Thrasher individuals seen or heard	Number of Plain Pigeon individuals seen or heard	Number of Prairie Warbler individuals seen or heard	Number of Puerto Rican Bullfinch individuals seen or heard	Number of Puerto Rico Lizard Cuckoo individuals seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

7FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	PREME	PRFLY	PRTAN	PRTOD	PRWPR	RLTSH
NAME OF VARIABLE	Puerto Rican Emerald	Puerto Rican Flycatcher	Puerto Rican Tanager	Puerto Rican Tody	Puerto Rican Woodpecker	Red-legged Thrush
DEFINITION OF VARIABLE	Number of Puerto Rican Emerald individuals seen or heard	Number of Puerto Rican Flycatche individuals seen or heard	Number of individuals seen or heard	Number of Puerto Rican Tody individuals seen or heard	Number of Puerto Rican Woodpecker individuals seen or heard	Number of Red-legged Thrush individuals seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

8FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	RQDOV	RTHAW	SBANI	SCOWL	SHTAN	SNPIG
NAME OF VARIABLE	Ruddy Quail-Dove	Red-tailed Hawk	Smooth-billed Ani	Puerto Rican Screech Owl	Stripe-headed Tanager	Scaly-naped Pigeon
DEFINITION OF VARIABLE	Number of individuals seen or heard	Number of Red-tailed Hawk individuals seen or heard (before also identified as RDTAH)	Number of Smooth-billed Ani individuals seen or heard	Number of Puerto Rican Screech Owl individuals seen or heard	Number of Stripe-headed Tanager individuals seen or heard	Number of Scaly-naped Pigeon individuals seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

VARIABLES (ATTRIBUTES):

9FILE NAME OR #ABOVE(all in which the variable appears)	All	All	All	All	All	All	All
ABBREVIATION(as it appears on the data file)	UNKNO	UNWAR	WATTH	WEVIR	WWDOV	YFGRQ	TOTAL
NAME OF VARIABLE	unknown species	Unidentified warbler	Unidentified waterthrush	White-eyed Vireo	White-winged Dove	Yellow-faced Grassquit	Total Individuals found
DEFINITION OF VARIABLE	Number of unknown species individuals seen or heard	Number of Unidentified warbler individuals seen or heard(before also identified as WABRU)	Number of Unidentified waterthrush individuals seen or heard	Number of White-eyed Vireo individuals seen or heard	Number of White-winged Dove individuals seen or heard	Number of Yellow-faced Grassquit individuals seen or heard	Total Number of individuals from all species seen or heard
UNIT
PRECISION
RANGE OR LIST OF VALUES
DATA TYPE	integer	integer	integer	integer	integer	integer	integer
MISSING DATA CODES

COMPUTATIONAL METHODS:

Variable Name	Formula
TOTAL	Sum of all values within each row from column AMRED through column YFGRQ

DATE OF LAST REVIEW: January 3, 2012
DATE OF LAST ENTRY: 5/24/2011
STAGE OF DATA SET MANAGEMENT (dates):
RECEIVED: 1989
ENTERED: 1989 (ongoing)
FILED ON-LINE: Dec 2, 2001
REVIEWED BY RESEARCHER: Sep, 2001
FILING MEDIA:
NAME OF DOCUMENTATION FILE: Pont count metadata.doc, lterdb23.htm
NAME OF ON - LINE CATALOG: LTERDBAS
RECORD #: 23
DOCUMENT TYPE: magnetic media (in paper also)
PRIORITY TO BE ENTERED: second

Rev. date of this form: 15 July 2001