Download pdf - Greg Green Lowres

8/3/2019 Greg Green Lowres

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Texas&Coastal&Wetlands.org&Redrawn&from&Doering&1935&


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hp://www.texaswetlands.org &Moulton&&Jacob,&Publicaon&TAMU


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Input&Google&Images.&

Near)Bay)City))Matagorda)Co.))194)


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Near)Bay)City))Matagorda)Co.))010)


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Near)Cypress))Harris)Co.))1943)


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Near)Cypress))Harris)Co.))010)


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Coastal'Prairie'Wetland'Ecology'

Influenced)primarily)by)

precipita2on)(Rainfall)

Variable)Hydrology))

Variable)Vegeta2on)Composi2on)


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Duck&life&cycle&ecology&

Waterfowl LifeCycle


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Characteristics of Gulf Coast Prairie

Formerly tall grass wet prairie, seasonal and semi-permanent wetlandsCurrently dominated by agriculture (Rice, Pasture, or Row Crops)Rice agriculture, as a surrogate wetland habitat, provides waste grainsin farming years and moist soil seeds in fallow years


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Degraded/Altered Hydrology Salt Water Intrusion & Subsidence Declining Rice Production Stressed Water Supplies Development Pressures Increasing Population & Water Demands


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Coastal'Rice))


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James)Nu_all1,2&and&Roger&Armstrong1&1&Department&of&Primary&Industries,&PB&260,&

Horsham,&Vic&3401.&


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Reduc


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Rice)Land)Conversion)


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Texas&Gulf&Coast&Economic(and(Ecologically(Valuable(

Courtesy&of&NASA&"Planetary&Photo&

Journal&&


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Gulf Coast Joint Venture Conservation Planning

Population-based foraging habitat modelsHabitat objectives developed each initiative areaAssess actual prairie/agricultural habitatAssess coastal marsh habitatAllows comparisons of need versus availability


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kcalX1

09


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Courtesy: GCJV


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Coastal Marsh Pond Foraging Values

GCJV File Photo

Winslow (2003), Nyman (2004)


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Kcal(Billions)

GCJV)Coastal)Marsh)Energy)Demand)&)Availability)Es2mates)Texas)

Chenier)&)Mid)Coast)Ini2a2ves)

GCJV&Objecve&&

3.3&M&Ducks&&1M&Geese&&586,000&Acres&


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GCJV Foraging Habitat Objectives and Estimated

Habitat for Dry, Average, and Wet Conditions on

Texas Coast

A c

res

Laguna Madre Mid-Coast Chenier

Plain

Demand

Supply


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Population Decline of Northern Pintail

U.S.&Fish&and&Wildlife&Service.&2011.&Waterfowl&populaon&status,&2011.&&U.S.&Department&of&the&

Interior,&Washington,&D.C.&USA.&&&


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GCJV Northern Pintail Population Objectives

28.1%1,570,819Total Pintails

0.02%1,236Mobile Bay

0.0%0Coastal Mississippi

1.8%99,967Mississippi River

7.1%396,313LA Chenier

2.2%124,193Chenier Plain

13.9%775,755TX Mid-Coast

3.1%173,355Laguna Madre

Percentage ofNAWMP BPOP*PopulationObjectiveInitiative Area

*NAWMP Northern Pintail Breeding Population Objective = 5.6 million birds


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Review of Northern Pintail Research to Guide

Conservation Programs

Survival Rate ComparisonsLocation Age Survival Rate

MX A, I 0.911CA A 0.874SW LA A

I0.7140.550

TX PLR A, I 0.694 to 0.925TX Coast A, I 0.170 to 0.610MallardsMAV, PLR A, I 0.700 to 0.993

Three important research efforts on female pintails:

(1)Cox and Afton in SW Louisiana(2)Ballard et al., Laguna Madre, Texas(3)

Anderson et al., Texas Gulf Coast and Playa Lakes


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The)Canary)in)the)Coal)

Mine?)

GCJV&and&USFWS


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Species

Population

Objective, GCJVRegion, BCR 37

Habitat Use, by Percent,

Managed & all Inland Wetlands,Agriculture, & Grasslands

Population Objective, Managed and all Inland

Wetlands, Agriculture, and Grasslands, GCJVRegion

Black-bellied Plover 100,000 10 10,000

Killdeer 3,500,000 95 3,325,000

Black-necked Stilt 70,000 75 52,500

Greater Yellowlegs 66,000 60 39,600

Lesser Yellowlegs 264,000 75 198,000

Upland Sandpiper 520,000 100 520,000

Long-billed Curlew 40,000 60 24,000Semipalmated

Sandpiper1,000,000 30 300,000

Western Sandpiper 3,500,000 30 1,050,000

Least Sandpiper 350,000 60 210,000

Bairds Sandpiper 30,000 95 28,500

Pectoral Sandpiper 300,000 90 270,000

Dunlin 762,500 35 266,875

Stilt Sandpiper 984,000 80 787,000Buff-breasted

Sandpiper72,000 95 68,400

Short-billed

Dowitcher76,500 20 15,300

Long-billed

Dowitcher500,000 95

30

190,000 (LA)

90,000 (TX)

Wilsons Phalarope 150,000 50 75,000

Gulf)Coast)Joint)Venture)Fall)Shorebird)Objec2ves))

Vermillion,)W.G.))011.)GCJV.&


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~39,65)ac)needed)

Primarily)shallowflooded,)

sparselyvegetated)

Remote)sensing)availability)

assessment)pending)



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Approximately&3,500&acres&conserved&annually.&

More&than&50,000&acres&conserved&to&date.& 550&individual&wetland&agreements.& More&than&850&managed&wetland&units.&


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Sheldon)Lake)SP))004)


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