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Vertebrate species composition of remnant desert islands within central Arizona-Phoenix urban areas: period 1998-1999

Publication date: 2000

Author(s):

  • Robert Ohmart, School of Life Sciences, Arizona State University
  • Kevin Clark, School of Life Sciences, Arizona State University

Abstract:

Urban growth around Phoenix over the last 30 years has produced numerous isolated "islands" of remnant desert habitat. Each of these remnants has its own unique vertebrate community, determined by the fauna present prior to isolation, area of remaining habitat, vegetation characteristics, time since isolation, and distance to other islands or source populations. These factors can be used as predictors of how future growth will affect potential desert preserves.


Keywords:


Temporal Coverage:

1998-01-14 to 1999-06-24

Geographic Coverage:

Geographic Description: Desert remnant within Phoenix metropolitan area in Arizona, USA
Bounding Coordinates:
Longitude:-112.064404 to -111.615908
Latitude:33.728481 to 33.370548

Contact:

Information Manager, Global Institute of Sustainability, 
Global Institute of Sustainability,Arizona State University,PO Box 875402,Tempe
 caplter.data@asu.edu

Data Files (6) :

Tabular: 23_birds_1.csv

Description: bird counts along transects

Column Description Type Units
id Uniqu numbers identifying record
string
survey_id Uniqu numbers identifying surveys
string
site_id Abbreviations distiguishing sites.
string
direction Northern or southern parallel transect
string
Enumeration:
  • N: Northern parallel transect
  • S: Southern prallel transect
species_id Abbreviations identifying species
string
obs_type Type of observation
string
Enumeration:
  • calling: bird call heard
  • singing: bird song heard
  • visual: bird seen
count_10m number of birds within 10 m distance from transect
integer number
count_20m number of birds at 10 - 20 m distance from transect
integer number
count_30m number of birds at 20 - 30 m distance from transect
integer number
count_50m number of birds at 30 - 50 m distance from transect
integer number
count_70m number of birds at 50 - 70 m distance from transect
integer number
count_70mplus number of birds beyond 70 m distance from transect
integer number
notes Extra observations taken at the site.
string

Tabular: 23_surveys_1.csv

Description: date and other information of the survey

Column Description Type Units
survey_id Unique numbers used to identify specific surveys
string
site_id Abbreviations used to identify specific sites
string
direction Northern or southern parallel transect
string
Enumeration:
  • N: Northern parallel transect
  • S: Southern prallel transect
transect_len Length of the transect
smallint meter
survey_date Date of the survey
datetime Format: MM/DD/YYYY
time_start Starting time of the survey
datetime Format: HH:MM:SS A/P
time_end Time the survey stopped
datetime Format: HH:MM:SS A/P
minutes_interrupted Amount of minutes the count was stopped
integer minute
observer Observer's name
string
wind_speed Wind speed at the time of the survey
integer milesPerHour
wind_dir Wind direction at the time of the survey
string
air_temp Temperature of the air at the time of the survey
integer fahrenheit
temp_units Measured units
string
cloud_cover Percent cloud cover
integer dimensionless
notes Extra notes taken by the observers
ntext

Tabular: 23_sites_1.csv

Description: descriptions of the sites where the transects are

Column Description Type Units
site_id Abbreviations distingishing sites
string
description site description
ntext

Tabular: 23_birdtaxalist_1.csv

Description: list of bird taxa

Column Description Type Units
species_id Abbreviation of the species common name
string
common_name Common name of species seen
string
asu_itis Internal ID
integer

Tabular: 23_liz_taxa_1.csv

Description: taxon list for observed vertebrate animals

Column Description Type Units
species_id Abbreviation of species' common name
string
common_name Common or scientific name of the species seen
string

Tabular: 23_lizards_1.csv

Description: observation data for all vertebrate animals

Column Description Type Units
id record ID
string
survey_id Sequental numbers given to individual surveys
string
site_id Abbreviation of site
string
direction Northern or southern parallel transect
string
Enumeration:
  • N: Northern parallel transect
  • S: Southern prallel transect
species_id Abbreviation of species' common name
string
count_0_2m Individual count 0 - 2 m from transect
integer number
count_2_4m Individual count 2 - 4 m from transect
integer number
count_4_7m Individual count 4 - 7 m from transect
integer number
count_7_10m Individual count 7 - 10 m from transect
integer number
count_10mplus Individual count more than 10 m from transect
integer number

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