How did they get here?

Distribution: 2004

Distribution: 2010

Disease Vectors

Population Control

Wichita

Archer

Baylor

Foard

Lipscomb

Ochiltree

Hands-fordDallam

Sherman

Hartley Moore Roberts Hemphill

Oldham Potter CarsonGray Wheeler

Deaf Smith

Randall

Arm-strong

Donley

Collings-worth

Swisher Briscoe Hall

Floyd Motley

Cochran Hockley

Lubbock

Crosby

Dickens

King

Knox

NolanHoward

Mitchell

Yoakum

Terry

Lynn

Garza

Kent

Gaines

Dawson

Borden Scurry

Andrews Martin

Reagan Irion Tom Green

Glasscock

Sterling CokeMidlandEctorWinklerLoving

UptonCraneWard

Reeves

Pecos

Terrell

CulbersonHudspeth

El Paso

Jeff Davis

Presidio

Brewster

Crockett

Val Verde

Schleicher

Sutton

Edwards

Cole-man

Brown

Mills

Hamilton

McLennan

Comanche

Hill

John-son

Tarrant

Denton

Cooke

Mon-tagueClay

Young WiseJack

ParkerPalo PintoStephens

Hood

Erath

East-land

Callahan

Taylor

Runnels

Stonewall

FisherJones

Rusk

Gregg

Upshur

Camp

Mor

ris

Bowie

Cass

Marion

Harrison

Panola

Dallas

Fannin

Collin

Ellis

Navarro

Freestone

Ander-son

Henderson

Wood

Titus

Fran

klin

Kauf-man Van Zandt

Rock-wall

Hunt

Raines

Hopkins

Delta

Lamar Red River

Grayson

Walker San Jacinto

Polk

Hardin

Jasper

New

ton

Houston

Trinity

Shelby

Sabine

San Augustine

Angelina

Tyler

Falls

Milam

Burleson

Brazos

Madison

Leon

Robert-son

Concho

Menard

Kimble

Real

SanSaba

Mason Llano

Kendall

Travis

Williamson

Coryell

Lampasas

Chambers

Liberty

Jefferson

Orange

Karnes

Gonzales

Lee

Washing-ton

Harris

Fayette

Austin

Colorado FortBend

Wharton

Dewitt Jackson

Goliad

Victoria

Refugio

Calhoun

Matagorda

Brazoria

Gal.Kinney Uvalde Medina Bexar

Wilson

Atascosa

LiveOak

McMullen

Bee

Maverick

Zavala Frio

La Salle

Webb

Duval

JimWells

SanPatricio

Nueces

Kleberg

Aransas

ZapataJimHogg

Brooks

Star

Hidalgo

Cameron

Willacy

Kerr

Gillespie

Burnet

Bell

Bosque

Smith

Hale

Dimmit

Blanco

Comal

Hays

Caldwell

Bastrop

TPWD Assistance

• Design a management strategy

• Provide credible, scientific basis for management actions

• Educate the public• Facilitate community

discussions