knb-lter-sev.15.218707

Summary Information

Burn Exclosure Rodent Population Study at the Sevilleta National Wildlife Refuge, New Mexico (1991-1993)

Creator:

Individual:

Robert Parmenter

Organization:

Valles Caldera National Preserve

Physical Address:
Delivery Address:	P.O. Box 359, 090 Villa Louis Martin
City:	Jemez Springs
Locality:	NM
Postal Code:	87025
Phone:	US

Email:

bparmenter@vallescaldera.gov

Metadata Provider:

Individual:

Information Manager Sevilleta LTER

Physical Address:
Delivery Address:	1 University of New Mexico
City:	Albuquerque
Postal Code:	87131
Phone:	US

Phone:

(505) 277-2109

Phone:

(505) 277.5355

Email:

data-use@sevilleta.unm.edu

Associated Party:

Individual:

James Brunt

Physical Address:
Phone:	US

Role:

data manager

Publication Date:

2011-02-18

Language:

English

Abstract:

Small mammal densities were estimated from small mammal recapture data in burned and unburned grassland.

Keywords:
Keyword:	populations
Keyword Thesaurus:	Core Areas

Keywords:
Keyword:	populations
Keyword:	reproduction
Keyword:	burning
Keyword:	trapping
Keyword:	small mammals
Keyword Thesaurus:	LTER Controlled Vocabulary

Intellectual Rights:

Data Policies

This dataset is released to the public and may be freely downloaded. Please keep the designated contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement of the Sevilleta LTER. A copy of any publications using these data must be supplied to the Sevilleta LTER Information Manager.

Distribution:

Online:
URL:	http://sevdeims-d.lternet.edu/data/sev-15

Coverage:

Geographic Goverage:

Geographic Description:

The BurnX study area is located on the southern end of Mckenzie Flats.

Bounding Coordinates:

West Bounding Coordinates:

-106.676

East Bounding Coordinates:

-106.676

North Bounding Coordinates:

34.3073

South Bounding Coordinates:

34.3073

Bounding Altitude:
Altitude Minimum:	1635
Altitude Maximum:	1635
Altitude Units:	meter

Temporal Coverage:

Date Range:

Begin Date:
Calendar Date:	1991-09-01

End Date:
Calendar Date:	1993-09-01

Maintenance Information:

Description:
File created by Susan McKelvey 3/29/93. File supplemented by Rosemary Vigil 24 June 1993. Checked Oct 20, 1995; James Brunt

Contact:

Position Title:

Information Manager

Organization:

LTER Network Office

Physical Address:
Delivery Address:	UNM Biology Department, MSC03-2020
Delivery Address:	1 University of New Mexico
City:	Albuquerque
Locality:	NM
Postal Code:	87131-0001
Phone:	USA

Phone:

505 277-2535

Phone:

505 277-2541

Email:

tech-support@lternet.edu

URL:

http://www.lternet.edu

Contact:

Individual:

Information Manager Sevilleta LTER

Physical Address:
Delivery Address:	1 University of New Mexico
City:	Albuquerque
Postal Code:	87131
Phone:	US

Phone:

(505) 277-2109

Phone:

(505) 277.5355

Email:

data-use@sevilleta.unm.edu

Publisher:

Individual:

Information Manager Sevilleta LTER

Physical Address:
Delivery Address:	1 University of New Mexico
City:	Albuquerque
Postal Code:	87131
Phone:	US

Phone:

(505) 277-2109

Phone:

(505) 277.5355

Email:

data-use@sevilleta.unm.edu

Publication Place:

Sevilleta LTER

Method Step:

Description:

Web trapping design: Experimental units were established in a 4 x 4 grid as part of a burn and antelope exclosure experiment. Small mammals were trapped in fireblocks 1, 2, 3, and 4. Each fireblock contains four webs, for a total of 16 webs. Small mammal densities are estimated from recapture data.Within each location four webs were established. Each web contains twelve 100m transects radiating from a central point in a spoke like fashion. Four "Sherman" traps were placed around this central point. Twelve traps are placed along each of the radiating lines, the first four are placed at 5m intervals, and the remaining eight placed at 10m intervals. Rebar were used to mark the location of trap placement. Each rebar was tagged with a number from 1 to 145, with trap number 1 at the north facing spoke and radiating out to trap number 12, with each spoke following with successive numbers increasing in a clockwise fashion. Trap number 145 includes the four traps placed in the center of the web. Traps were placed adjacent to rebar unless a shaded area could be found within a meter or so along an arc of equal radius from the center. The webs are separated by distances from approx. 100m to 600m. Within each fireblock, each web is marked with a number from 1-4.Trapping times:Each summer was divided into two periods: period 1 and period 2.Mammals were trapped as follows:1991: period 1: NAÂ Â Â Â Â Â Â Â period 2: September 4 - October 41992: period 1: April 15 - May 8Â Â Â Â Â Â Â Â period 2: August 4 - September 171993: period 1: April 6 - 29Â Â Â Â Â Â Â Â period 2: September ??Each location was trapped in the same order for each period.The order is as follows:1. Fireblock 12. Fireblock 23. Fireblock 34. Fireblock 4Each trapping session consisted of placing and baiting traps on Monday, then checking the traps at dawn on both Tuesday (night 1), Wednesday (night 2), and Thursday (night 3). The traps were collected on Thursday after being checked for animals. A small handful of rolled oats was placed into each trap, with small amounts placed outside trap door. Animals were removed form closed traps with the aid of plastic bags. They were then identified to species. Weight was determined to the nearest gram using a pesola scale. Body, tail, foot, and ear measurements were taken for Peromyscus. Body and tail measurements were taken for Onychomys, Perognathus, and Reithrodomtomys. All measurments were taken to the nearest millimeter using a plastic ruler. Reproductive status was determined by examination of the genitalia. The animal was also sexed, aged, and marked. Marking was done to each animal on the first nights capture for each individual animal.

Quality Control:

Description:

Data Entry1. Data were entered at Biology Annex using data entry program "mammal-entry"2. Data were checked for errors by comparing original data sheets with the data entered into the computer.3. After all errors were corrected, a dbf file was created using a Sun machine. (/research/local/mammal/bin/SASmam2dbf filename > filename.dbf) This modifies the comments, leaving out comments noted as "na".4. A rdb file was then created using "arc2rdb filename.dbf > filename.rdb".5. The rdb file was then checked for errors using "check < filename.rdb".6. After errors were corrected, the rdb file was sorted using "sort filename | uniq -c | page" to check that every entry was unique.7. Duplications were investigated and corrected.8. Dbf and rdb files were then copied to /research/archive/dbwork/vertebrate/ mammal/burnplot9. From sevilleta, at burnplot>, the rdb file was run through a program called webDist to create an input file as such: " webDist filename.rdb location period > conventional input name. (naming conventions: site-season-year.in)10.Input file was copied into /research/archive/dbwork/vertebrate/mammal/ burnplot11.From a PC, the input file was run through a distance program in order to get densities. (from dos: L:, cd distance, dist i=L:\burnplot/filename.in o=L:\burnplot\filename.out)12.Densities were cbtained from the output file and put into /mammal/data/ density-data/mammal_densities.data.burn which is a table containing the following: year season location web n density stderr cv lcl ucl. 13.At this point, nothing further has been done.

Data Table:

Entity Name:

sev015_burnxrodentpop_10191995.txt

Entity Description:

Data for BurnX Rodent Population Study

Object Name:

sev015_burnxrodentpop_10191995.txt

Size:

55863

Data Format:

Text Format:

Number of Header Lines:

Record Delimiter:

Attribute Orientation:

column

Simple Delimited:
Field Delimiter:	,
Quote Character:	"

Distribution:

Online:
URL:	https://pasta.lternet.edu/package/data/eml/knb-lter-sev/15/218707/0b34df220c78a838f98b58db7a65ce66

Coverage:

Temporal Coverage:

Date Range:

Begin Date:
Calendar Date:	1991-01-01

End Date:
Calendar Date:	1993-01-01

Attribute List:

Attribute Name:

year

Attribute Label:

year

Attribute Definition:

The year in which data was collected.

Storage Type:

date

Measurement Scale:

Datetime:
Format String:	YYYY

Attribute Name:

location

Attribute Label:

location

Attribute Definition:

One of the four sites where the webs are located: fireblk1, fireblk2, fireblk3, fireblk4

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	One of the four sites where the webs are located: fireblk1, fireblk2, fireblk3, fireblk4

Attribute Name:

period

Attribute Label:

period

Attribute Definition:

The time of year trapping was done

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	1
Definition:	spring

Code Definition:
Code:	2
Definition:	fall

Attribute Name:

habitat

Attribute Label:

habitat

Attribute Definition:

Type of habitat

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	Type of habitat

Attribute Name:

recap

Attribute Label:

recap

Attribute Definition:

An indication if the animal was a recapture or not

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	y
Definition:	a recapture from that week only

Code Definition:
Code:	n
Definition:	not a recapture

Attribute Name:

night

Attribute Label:

night

Attribute Definition:

The night that the trapping was done

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	The night that the trapping was done

Attribute Name:

web

Attribute Label:

web

Attribute Definition:

The number of the web being sampled, which can range from 1-5 depending on site and project.

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	The number of the web being sampled, which can range from 1-5 depending on site and project.

Attribute Name:

trap

Attribute Label:

trap

Attribute Definition:

The numbered tag on rebar adjacent to the trap

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	The numbered tag on rebar adjacent to the trap

Attribute Name:

Species code

Attribute Label:

species_code

Attribute Definition:

The four letter code used to identify species. The first two letters represent the first two letters of the genus and the second two letters represent the first two letters of the species.

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	The four letter code used to identify species. The first two letters represent the first two letters of the genus and the second two letters represent the first two letters of the species.

Attribute Name:

id#

Attribute Label:

id#

Attribute Definition:

The number given to each indiviual animal

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	The number given to each indiviual animal

Attribute Name:

tag

Attribute Label:

tag

Attribute Definition:

The type of tag number that was on the animal

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	tc
Definition:	toeclip; from a pool of numbers for each genus

Code Definition:
Code:	et
Definition:	eartag; from one set of numbers, used sequentially

Code Definition:
Code:	nk
Definition:	nunc tube number; from nk number book

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

sex

Attribute Label:

sex

Attribute Definition:

Gender of animal (M or F)

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Text Domain:
Definition:	Gender of animal (M or F)

Attribute Name:

age

Attribute Label:

age

Attribute Definition:

Estimated from animal's weight.

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	a
Definition:	adult

Code Definition:
Code:	j
Definition:	juvenile

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

mass

Attribute Label:

mass

Attribute Definition:

Weight determined to nearest gram using a pesola scale

Measurement Scale:

Ratio:

Unit:

Standard Unit:

gram

Precision:

0.1

Numeric Domain:
Number Type:	real

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

reproduction

Attribute Label:

reproduction

Attribute Definition:

The reproductive status of the animal

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	st
Definition:	scrotal testes

Code Definition:
Code:	p
Definition:	pregnant

Code Definition:
Code:	l
Definition:	lactating

Code Definition:
Code:	v
Definition:	vaginal bleeding

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

body

Attribute Label:

body

Attribute Definition:

Length from the tip of the snout to the distal portion of the pelvis

Measurement Scale:

Ratio:

Unit:

Custom Unit:

millimeters

Precision:

Numeric Domain:
Number Type:	real

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

tail

Attribute Label:

tail

Attribute Definition:

The length from the distal portion of the pelvis to the last vertebra of the tail

Measurement Scale:

Ratio:

Unit:

Custom Unit:

millimeters

Precision:

Numeric Domain:
Number Type:	real

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

foot

Attribute Label:

foot

Attribute Definition:

The length from the proximal bulb of the tarsus to the tip of the tail

Measurement Scale:

Ratio:

Unit:

Custom Unit:

millimeters

Precision:

Numeric Domain:
Number Type:	real

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

ear

Attribute Label:

ear

Attribute Definition:

The length from the base of the tragus to the tip of the ear

Measurement Scale:

Ratio:

Unit:

Custom Unit:

millimeters

Precision:

Numeric Domain:
Number Type:	real

Missing Value Code:
Code:	na
Code Explanation:	missing

Attribute Name:

comments

Attribute Label:

comments

Attribute Definition:

A special statement related to an observation.

Storage Type:

string

Measurement Scale:

Nominal:

Non Numeric Domain:

Enumerated Domain:

Code Definition:
Code:	na
Definition:	not applicable