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Edwards Plateau Ecoregion
Wildlife Management Plan for Burnet County, Texas
Burnet County sits at the convergence of 4 Texas ecoregions, with 90 documented wildlife species.
Intelligence Snapshot
Regulatory Complexity
Burnet County's 4 ecoregions and Edwards Aquifer overlap create layered regulatory requirements that affect both species management and water development. The 5 endangered species documented here mean that brush clearing, water development, and land use changes carry ESA compliance risk. Critical habitat has been designated for 4 species within county boundaries. Federal review may be triggered by land use changes in designated areas. The county spans 4 ecoregions. A plan written for the wrong landscape position could prescribe inappropriate intensity standards or target the wrong species assemblage. A properly calibrated plan accounts for these constraints. A generic plan does not.
Burnet County Ecological Profile
Burnet County contains 3 TPWD-managed areas including Colorado Bend State Park, Inks Lake State Park, Longhorn Cavern State Park, giving the county an unusually strong conservation anchor for its 995 square miles of limestone hill country with spring-fed canyons. This is where Texas ranching tradition meets some of the state's most sensitive ecological systems. The county overlaps the Edwards Aquifer system, and management practices must account for recharge zone protections that affect both development and agricultural operations.
Cedar management is the dominant wildlife management activity on the Edwards Plateau, but it must be approached with nuance. While dense Ashe juniper mottes suppress native grass production and reduce spring flow, the golden-cheeked warbler, federally listed as endangered, nests exclusively in mature stands of Ashe juniper with shredding bark. Effective management removes regrowth juniper from grassland and savannah areas while protecting mature juniper in canyon bottoms and steep slopes where the warbler nests. Brush sculpting, rather than blanket clearing, is the standard of care. Supplemental water development is critical on the plateau, where thin soils and fractured limestone create limited surface water retention. Rainwater collection systems and small impoundments along seasonal drainages provide water for deer, turkey, and upland birds during the dry months of late summer.
Transitional Ecoregion
Burnet County intersects 4 distinct ecoregions: Cross Timbers, East Central Texas Plains, Edwards Plateau, and Texas Blackland Prairies. This is not a minor detail. A plan calibrated to the Cross Timbers would prescribe the wrong intensity standards, the wrong target species, and the wrong management timeline for a property in the Texas Blackland Prairies zone. Property-specific ecoregion classification is the first step in any credible plan.
Soil Conditions
Soils are characteristically thin and rocky, with Tarrant, Brackett, and Real series limestones predominating on uplands and deeper Krum and Lewisville silty clays along creek bottoms in the eastern reaches.
Fire Ecology
Fire historically swept the plateau grasslands at 3 to 5 year intervals, maintaining open savannahs between juniper-oak mottes. Prescribed fire in combination with mechanical brush management is the most effective approach to restoring native grassland on juniper-invaded sites.
Spans 4 ecoregions: Cross Timbers, East Central Texas Plains, Edwards Plateau, Texas Blackland Prairies
The Edwards Plateau harbors the highest concentration of endemic species in Texas. The golden-cheeked warbler breeds only in central Texas juniper-oak woodlands, and the black-capped vireo nests in low, scrubby vegetation on rocky hillsides. Below ground, dozens of cave-adapted invertebrate species, including Tooth Cave spider, Bone Cave harvestman, and several cave-adapted beetles, depend on the integrity of the karst system. White-tailed deer populations on the plateau are among the densest in North America, and intensive harvest management is often necessary to prevent overbrowsing of native forbs and browse species like Texas kidneywood and agarito.
Burnet County Species of Conservation Concern
TPWD records 90 species in Burnet County. Birds represent the most documented group at 26 species. The county carries significant conservation obligations: 5 federally endangered species, 2 federally threatened, and USFWS critical habitat designations for 4 species. Management activities on private land must be designed to avoid incidental take. Federally listed species include Reddell harvestman, golden-cheeked warbler, and whooping crane. Reddell harvestman: Cave-obligate arachnid in the Edwards Plateau karst.
Primary Management Targets
white-tailed deer, golden-cheeked warbler, black-capped vireo
Listed Species
Cave-obligate arachnid in the Edwards Plateau karst. Surface disturbance above cave systems requires environmental review.
Nests exclusively in mature Ashe juniper with shredding bark. Cedar management must retain mature juniper in canyon bottoms and steep slopes. Clearing occupied habitat requires ESA Section 10 incidental take permit.
Winters along the Texas coast at Aransas NWR and surrounding marshes. Grain field management and wetland water levels in coastal counties affect foraging habitat. Disturbance within 1,000 feet of roosting sites is regulated.
Freshwater mussel endemic to central Texas rivers. Sedimentation from land clearing, impoundment, and water quality degradation are primary threats. Riparian buffers and erosion control benefit this species.
Freshwater mussel in central Texas rivers. Threats include impoundment, water quality degradation, and altered flow regimes. Riparian management and erosion control are beneficial.
Western distinct population segment is threatened. Requires large patches of mature riparian woodland (cottonwood, willow) with dense understory. Clearing riparian corridors wider than 300 feet may trigger consultation in designated critical habitat.
Freshwater mussel found in central and East Texas rivers. Sensitive to sedimentation, flow alteration, and water quality changes. Maintaining riparian vegetation and minimizing erosion are key management practices.
Nests exclusively in mature Ashe juniper with shredding bark. Cedar management must retain mature juniper in canyon bottoms and steep slopes. Clearing occupied habitat requires ESA Section 10 incidental take permit.
Nests on bare sand and gravel bars along rivers and reservoirs. Disturbance during nesting season (May through August) must be avoided. Water level management at reservoirs affects nesting success.
Winters along the Texas coast at Aransas NWR and surrounding marshes. Grain field management and wetland water levels in coastal counties affect foraging habitat. Disturbance within 1,000 feet of roosting sites is regulated.
Freshwater mussel endemic to central Texas rivers. Sedimentation from land clearing, impoundment, and water quality degradation are primary threats. Riparian buffers and erosion control benefit this species.
Freshwater mussel found in central and East Texas rivers. Sensitive to sedimentation, flow alteration, and water quality changes. Maintaining riparian vegetation and minimizing erosion are key management practices.
Freshwater mussel in central Texas rivers. Threats include impoundment, water quality degradation, and altered flow regimes. Riparian management and erosion control are beneficial.
Depends on harvester ant colonies for food. Fire ant suppression and native grassland restoration directly benefit this species. Listed as state threatened.
Source: Texas Parks & Wildlife Department RTEST Database; U.S. Fish & Wildlife Service Critical Habitat Designations
Edwards Plateau Wildlife Management Standards
Wildlife management in Burnet County operates on karst limestone where surface activities affect the aquifer below and where cedar management must distinguish between regrowth juniper (remove) and mature warbler habitat (retain). Because the county spans 4 ecoregions, the applicable intensity standards depend on where the property sits. For the Edwards Plateau portion, TPWD requires 14.2 to 20 minimum acres, 20% brush management, and annual census documentation (34 TAC Section 9.2002). Primary targets are white-tailed deer, golden-cheeked warbler, and black-capped vireo. The presence of federally listed neotropical migrants means brush management must be selective, not blanket clearing.
These are the intensity thresholds your plan must meet for the Edwards Plateau ecoregion. Your county appraisal district will verify compliance against these minimums. A plan that does not address them risks denial of your wildlife management valuation. For a complete overview of the seven management pillars, see the management pillars guide.
In Burnet County, brush management means juniper removal on grassland areas while retaining mature stands in canyon bottoms where golden-cheeked warbler nests.
Food plots must provide nutritional supplementation for target species. The minimum size and density are set by ecoregion to reflect carrying capacity.
Feeder placement and protein content are auditable. The aflatoxin threshold (20 ppb) is a compliance requirement, not a suggestion.
Fire ant suppression directly supports native harvester ant populations, the primary food source for Texas horned lizard and other ground-foraging species.
Brown-headed cowbirds are brood parasites that reduce nesting success of songbirds. The minimum applies to properties where cowbird trapping is selected as a management activity.
The burn rotation percentage applies over the full plan period. Properties that cannot burn due to WUI constraints must document the limitation and substitute equivalent mechanical treatment.
Nest box density is based on territory size of target cavity-nesting species. Boxes must be monitored and maintained annually.
Source: TPWD 34 TAC Section 9.2002, Comprehensive Wildlife Management Planning Guidelines
Water Resources
Burnet County overlaps 2 Edwards Aquifer zones. Land use activities in these zones are subject to Edwards Aquifer Authority regulations that affect both development and agricultural operations. 5 Groundwater Conservation Districts regulate water resources in the county, with permitting requirements for new wells and production limits that affect agricultural and wildlife management water sources.
Conservation Infrastructure
Colorado Bend State Park and Inks Lake State Park and Longhorn Cavern State Park anchor the conservation landscape in Burnet County, providing protected Edwards Plateau habitat and reference conditions for adjacent private land management.
Infrastructure
Oil and gas infrastructure is minimal in Burnet County. The landscape is dominated by agricultural and ecological land uses.
4 ecoregions, 5 endangered species, and the Edwards Aquifer underneath. Burnet County is not a place for a generic plan.
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4 ecoregions. 90 documented species. Burnet County's ecological complexity means the plan has to be specific to your property's landscape position. Calibrated to Edwards Plateau standards.
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