Vertebrate species composition of remnant desert islands within central Arizona-Phoenix urban areas: period 1998-1999
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 1999-06-24Geographic Coverage:
Geographic Description: Desert remnant within Phoenix metropolitan area in Arizona, USABounding 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:
|
species_id | Abbreviations identifying species |
string | |
obs_type | Type of observation |
string |
Enumeration:
|
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:
|
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:
|
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 |