Project Id # 60500953

Project Details

Project Details #60500953 - TX - Assessment of Genetic Diversity of the State Threatened Texas Kangaroo Rat, Dipodomys elator, Using Museum Specimens (F14AP00823/TX E-163-R-1)

Properties

Status Active
Primary Agency Texas Parks and Wildlife Department
Start Date 09/01/2014
End Date 08/31/2016
Project Categories Conservation/Management
Action Categories Data Collection and Analysis

Project Description

The Texas kangaroo rat (Dipodomys elator) is listed as a threatened species by the Texas Parks and Wildlife Department because of its scarcity and the small geographic range from which it is known. The Wild Earth Guardians petitioned the United States Fish and Wildlife Service (USFWS) to federally list the Texas kangaroo rat. USFWS responded that listing may be warranted due to habitat loss and genetic isolation of populations and is now undertaking a status review of the species. Conservation genetics seeks to understand the genetic factors affecting extinction risk and management decisions. Low genetic diversity can result in inbreeding depression (reduced reproduction and survival) and reduce a species' ability to adapt to environmental change. Additionally, understanding genetic structure among populations is important in defining management units and developing management strategies. However, documenting patterns of genetic diversity in D. elator is hampered by the difficulty of obtaining specimens from all but one population (Wichita County) due to it being rare, extirpated, and/or on inaccessible private property in other parts of its distribution. Fortunately, numerous museum specimens (including skins, skulls, and skeletons) collected over several decades have been preserved and are available to researchers. Using carefully designed techniques, DNA can be extracted, amplified, and sequenced from these specimens. Museum specimens have proven valuable in similar threatened and endangered species, including other species of kangaroo rats. Preliminary work of a single, contemporary population in Wichita County showed a striking lack of genetic diversity. The objective of this project is to assess patterns of genetic diversity in the state threatened Texas kangaroo rat using museum specimens from eight collections in seven counties. DNA from one hundred and thirty two specimens will be sequenced.

Location Details

Is statewide project?
Acres
States Congressional Districts Counties
Texas TX31 Erath County

Action Summaries

Action # 215538017 - Interim Annual Report

Start Date 09/01/2014
End Date 09/30/2015
Action Category Data Collection and Analysis
Action Strategy Research, survey or monitoring - fish and wildlife populations

Appendix A: Project Statement Details

Project Statement Details #60501065 - TX - Assessment of Genetic Diversity of the State Threatened Texas Kangaroo Rat,Dipodomys elator, Using Museum Specimens (F14AP00823/TX E-163-R-1)

Properties

Is Revision? N/A
Grant Programs Endangered Species Program
Project Statement Cost Breakdown
Estimated WSFR Federal Cost: $29,736
Estimated WSFR Non-Federal Match: $9,912
Estimated Other Cost: $0
Total Estimated Cost: $39,648
Cost Breakdown Graph Chart Service Unavailable

SMART Objectives - Needs/Threats

1 - Resource Threats

Need/Threat Level 1
Level 1 Need/Threat N/A
Description Loss of genetic diversity may be causing the decline in the Texas kangaroo rat population.

Objectives

Objective ID - 1

Objective Name DNA sequencing
Objective Statement The objective of this project is to understand the levels and patterns of genetic diversity of this species and identify management decisions and recovery objectives.

Standard Indicators

Desired Future Value Base Value Output Deadline
132 0 Aligned DNA samples and quantification of differences among the specimens 08/31/2015

SMART Objectives - Purpose/Targets

Purpose/Target ID - 1

Purpose/Target Description In order to determine if loss of genetic diversity plays a part in the decline of this species, this project will compare the genetic data for 132 speimens, from seven counties over three decades of collection.
Viability Status N/A

Indirectly Benefited Species

Scientific Name Common Name Status
Dipodomys elator Texas Kangaroo Rat

Objectives

Appendix B: Action Details

Action Details #215538017 - Interim Annual Report

Properties

Project Name TX - Assessment of Genetic Diversity of the State Threatened Texas Kangaroo Rat, Dipodomys elator, Using Museum Specimens (F14AP00823/TX E-163-R-1)
Status Active
Start Date 09/01/2014
End Date 09/30/2015
Action Category Data Collection and Analysis

Action Strategy

Strategy Measured Output Output Unit
Research, survey or monitoring - fish and wildlife populations 1 Projects

Indirectly Benefited Species

Scientific Name Common Name Status
Dipodomys elator

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