Big Bend National Park Bird Point Count
Entry ID: usgs_nwrc_bbendpt

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Summary
Abstract: This data set contains unlimited distance point count data that was collected
from 70 sites in Big Bend National Park, Texas. Sites were located by using
systematic sampling with a random start. Each site marked the center of a 2km
radius sampling circle and all sites were at least 4km apart. In addition, all
sites were at least 400m from paved or dirt roads. Sites were sampled every 9
days from mid-December through late February for three winter field seasons:
1999-2000, 2000-2001 and 2001-2002. Standard, 20 minute, unlimited distance
point counts were conducted at 70 sampling sites. Sites were located using
systematic sampling within a random start. Each site was sampled once every
nine days from mid-December to late February.

The purpose of the dataset is to assess the interactive effects of climate
change and fire on the capacity of the Trans-Pecos Region to support bird
communities.

This metadata was originally written by Lori Randall of the U.S. Geological
Survey, Biological Resources Division, National Wetlands Research Center in
Biological Data Profile format.

Related URL
Link: VIEW EXTENDED METADATA


Geographic Coverage
 N: 31.5 S: 28.52  E: -102.16  W: -105.1

Data Set Citation
Dataset Originator/Creator: U.S. Geological Survey, Biological Resources Division, National Wetlands Research Center
Dataset Title: Interactive Effects of Climate Change and Fire on Bird Communities - Point Count Data
Dataset Release Date: 2002
Dataset Publisher: USGS, BRD, National Wetlands Research Center


Temporal Coverage
Start Date: 1999-12-01
Stop Date: 2002-02-01


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS > BIG BEND NATIONAL PARK


Science Keywords
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >BIRDS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >FIRE ECOLOGY >FIRE OCCURRENCE    [Definition]


ISO Topic Category
BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Quality
The accuracy of the bird point count data is based on the experience of the
observers. All data entry was double checked for potential errors. All sites
were established 4km apart and at least 400m from a paved or dirt road. The
sites were visited nine days. Point counts began at 30 minutes before offical
sunrise and the final count of the day was completed with 5.5 hours after
offical sunrise. Data was only collected when the air temperature was >0
degrees Celsius and when the wind speed was <20 kmph. Data was checked
throughout the field season to ensure that observers followed protocol.

Data was omitted when collection conditions (i.e. fog) compromised data
accuracy. Only 3 counts were omitted out of the 1120 counts conducted over the
first two field seasons.


Access Constraints
This data will be available for public use after it has been published in
peer-reviewed, scientific outlets.


Use Constraints
Acknowledgement of the National Wetlands Research Center as a data source would
be appreciated in products developed from these data. Users should be aware of
that comparisons with other data sets for the same area from other time periods
may be inaccurate due to differences in data collection procedures.


Keywords
climate change
fire
landcover
landscape
point count
percent cover
unlimited distance
Big Bend National Park
Trans-Pecos
Chihuahuan Desert
Texas
West Texas
winter
bird
species
aves
Ciconiiformes
Cathartidae
Falconiformes
Falconidae
Odontophoridae
Gruidae
Scolopacidae
Columbiformes
Columbidae
Cuculiformes
Cuculidae
Strigiformes
Strigidae
Apodiformes
Apodidae
Piciformes
Picidae
Passeriformes
Tyrannidae
Laniidae
Vireonidae


Data Set Progress
COMPLETE


Data Center
Spatial Data and Metadata Server, National Wetlands Research Center, Biological Resources Division, USGS, U.S. Department of the Interior    [Information]
Data Center URL: http://sdms.cr.usgs.gov/

Data Center Personnel
Name: WYLIE C. BARROW
Phone: 337 266-8668
Fax: 337 266-8592
Email: wylie_barrow at usgs.gov
Contact Address:
U.S. Geological Survey
Biological Resources Division
National Wetlands Research Center
700 Cajundome Boulevard
City: Lafayette
Province or State: Louisiana
Postal Code: 70506
Country: USA


Personnel
WYLIE C. BARROW
Role: TECHNICAL CONTACT
Phone: 337 266-8668
Fax: 337 266-8592
Email: wylie_barrow at usgs.gov
Contact Address:
U.S. Geological Survey
Biological Resources Division
National Wetlands Research Center
700 Cajundome Boulevard
City: Lafayette
Province or State: Louisiana
Postal Code: 70506
Country: USA


Publications/References
U.S. Geological Survey, National Wetlands Research Center Interactive effects of climate change and fire on bird communities: GIS measurements, 2002 (digital tabular data).

U.S. Geological Survey, National Wetlands Research Center Interactive effects of climate change and fire on bird communities: landcover map, 2002 (Digital vector data).

Creation and Review Dates
DIF Creation Date: 2003-06-26
Last DIF Revision Date: 2014-04-11
Future DIF Review Date: 2004-06-27

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