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3-Wildlife 25Jan2017(2)
2017-05-05 | 阅:  转:  |  分享 
  
25Jan2017

1

WildlifeandSoil/WaterManagement

Lec03

ReadChapter17

(butjustskim17-2.6)

(seelastslidefornextreadingassignment)

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34

Question?

?Canconservationpractices(wetalkedabout

allsemester)benefitaquaticandwildlife?

?YES,forthemostpart

?However,needtorecognize…

5

Wildlifeisaresourcebut….

?Somefarmers,don’tcareaboutwildlife.

?Mostfarmershavesomeinterest(liketosee

them,liketowatchthem).

–Somedon’twanttomaketheefforttomanagefor

them

–Somefarmersdowanttomanageforwildlife.

?Somefarmersdon’tcareaboutsoil

conservation

?Mostfarmersdon’twanttoseetheirsoil

eroded

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25Jan2017

2

?Alsorecognizethatafarmwithgoodsoiland

waterconservationandmanagementwill

almostalwaysbenefittheaquaticspecies,but

terrestrialwildlifemaynotbeasplentifulas

forafarmeralsotryingtomanageforwildlife.

7

?Farmersthathaveminimalinterestinwildlife

aremorelikelyto:

–HarvestALLcrops,notleaveanyforwildlife.

–Remove/cleanup“grownup”areassuchasodd

cornersandfields,fencerows,controlallweeds…

–Farmasmuchasfeasible

?Takeoutwoodsforpasture

?Takeoutnativeprairiesforcropland

–Plantsspeciesofconservationplantsnotsuited

forwildlife.

?Isthisbad?

8

Todoboth:startwithanunderstandingof

wildlifeneeds(andsoil/watermanagement.)

?Dependsonthewildlifespecies

?Usuallylargeopenfieldsnotdesirable

–Smallerbroken-up(fragmented)fields

–Broken-upbydiversecover

?Notbaresoilsubjecttoerosionbut…

–Coverprovidedbygrass,shrubs,cropresidue,

weeds,trees

–Rareexceptions

910

Goal:meethabitatrequirements,while

conserving/managingsoilandwaterAND

makingalivingofftheland.

?Food

?Water

?Cover

–Nesting

–Resting/Sleeping/Roosting/Bedding

–Escape

–Rearingyoung

?Throughouttheyear

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Deer

?Mixture/diversity

?Browsers

–Leaves,grasses

–Acorns,corn,soybean

(hostas)

?Woodlots

–Oaks

–Brush

–Evergreens

?Permanentwater

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25Jan2017

3

Turkeys

?Differenthabitats

duringdifferentpartsof

year

?Needopenareasplus

forests(50%mature)

?Food

–Acorns,fruits,seeds,

greens,insects

?Nesting-edges,brush,

hayfields

?Water-surfacewater

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Quail

?Sensitive

?Diversehabitat

requirements

?Food

–Seeds,insects

?Broodhabitat

–Semibareground

?Nesting:openclumpy

grasses,undisturbed

?Escape:brushy,shrubby

cover

?Allinadjacentareas

?Water:dew,seeds14

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TallFescuewildlifedetriment

?“KY31”tallfescue(Loliumarundinaceum,a.k.a.

Festucaarundinacea)releasedin1943and

widespreadindistributionanduseby1970

(1998estimatesat120-140MacresinUSA)

?Tallfescueprovidespoorcover,littlevisual

obstruction(predators),poorbrooding/

movementforNorthernbobwhitequail

(Colinusvirginianus)aswellasendophyteissues

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USGSNorthAmericanBreeding

BirdSurvey

0

20

40

60

80

100

120

1960197019801990200020102020

MissouriData

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Index

SurveyYear

Sourceofdata:

http://www.mbr-pwrc.usgs.gov/bbs/bbs.html

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25Jan2017

4

Shrubbycover

?Smallblocksofshrubs/brush,brushpiles

–Wildplum,blackberry,sumac,hazelnut,

roughleafdogwood…

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PrairieChicken

?Sensitive

?Opengrasslandareas

–Notrees

?Nativegrasses

?Food

–Seeds,insects

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?Somespeciesmaybemoresensitivethan

otherstopoorermanagement/habitat:

–Moresensitive:Quail,Rabbit,Pheasant

?Morediverse,uniquehabitatrequirement

–Lesssensitive:Turkey,Deer

?Thriveinbestconditions,butexistinmarginal

–Moresensitive:Trout,SmallmouthBass

?Habitat,Foodsource,betterwaterquality

–Lesssensitive:Catfish,Perch,Carp

?Withstandpoorwaterquality

21

ConflictbetweenSoilandWater

Conservation/ManagementandAquaticspecies

management…

?Usuallynone.Ifyouimprovewaterqualityof

therunoff,almostalwaysimprovethe

environmentfordesirableaquaticspecies

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AquaticSpecies

?Sedimentisbad!

?Coversgravelbedsneededbyfishandinsects

?Clogsgills

?Cloudswater,reducessunlightpenetration,

thusreducingphotosynthesisofsubmerged

plants/algae.

?Disruptsfoodchain

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AquaticSpecies

?PhosphorusandNitrogen:Allsources

–Highlevelscanleadtoexcessiveplantand

algaegrowth.Needbalance.

–Duringalgaedecomposition,oxygenlevels

drop,toolowtosupportaquaticorganisms

–Highammonialevelsaretoxic

?Highlevelsoforganicwaste,samedeal.

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25Jan2017

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AquaticSpecies

?Pesticidesfromfields

–Herbicides,insecticides,fungicides

–Ifaninsecticidecankillabugonacornplant,

coulditkillanaquaticbug(afteraheavyrunoff

event)?Specificityofinsecticidesisa

considerationoffarmerswhomanagewildlife.

–Asamixinwater,whatimpactdotheyhaveon

aquaticspp.?

–Bio-accumulation?

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?OtherPollutants

–Livestockantibiotics,insectcontrol,medicinesin

wastecanbecomerunofftostream

–Whatgoesonyourlawnorthegolfcoursethatis

gettinginthewater?

–Fromindustry

–Trash

–Humans:whatgoesinyourbodythatgoesinthe

sewersystemandtotherivers?

26

FeminizedFish

?UK,Minnesota,walleyeinMSriver.

?Theories:

–lowlevelsofestrogenhormonessuchas

"Ethinylestradiol”,theactiveingredientinthe

birthcontrolpillornaturalfemalehormones

–estrogen-mimickingdegradationproductsof

alkylphenolethoxylatesurfactants(compounds

usedinsuchthingsaspesticides,detergents,and

cosmetics)andplasticizers.

–WhataboutPAHsfromcoaltarsealants?

?http://www.springfieldmo.gov/2144/Coal-Tar-Sealants

?NoticenewURL!

27

Themostpopulartheoriesareenvironmentalestrogens,increasing

levelsofUVlight,otherpollutants,andmicroscopicparasites.

28

ConflictofSC/WQmeasures

withTerrestrialspecies…

?Manytimesnone.Improveconditionofcover

(tocontrolerosion),canimprovethehabitat

forterrestrialspecies.

?Exceptions:

–Takingoutabrushydrawtoinstallagrassed

waterway

–Selectionofgrassspeciesforconservation.

?Mostallpracticeswewilltalkabout!

–Farminglargeopenfieldswithlittlediversity

2930

25Jan2017

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31

PerennialVegetation(grasses)

andWildlife

32

Grassspeciesselection:

?Sod-forming

grasses,notthe

bestforwildlife

?Toothick

?Canbedecent

habitatif

managedfor

wildlifebutmay

beatexpenseof

production.

33

GrassspeciesnotwellsuitedforWildlife

?TallFescue

?Bluegrass

?Bermudagrass

?Reedcanarygrass

?Caucasionbluestem

?Allmaybeutilizedtosomeextentbywildlife(deer

andrabbitbrowse,turkeynesting)

34

Grassspeciesselection:

?Bunchgrasses-

bestforwildlife

?Travelbetween

clumps

?Nesting

?Broodrearing

Easterngamagrass

35

NativeWarmSeasonGrassspeciesbetter

suitedforwildlife

?Easterngamagrass

?Littlebluestem

?Bigbluestem

?Indiangrass

?Switchgrass

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25Jan2017

7

3738

CoolSeasonGrassesandlegumes

?Orchardgrass

?Timothy

?Redtop

?Virginia/Canadawildrye

?Mostalllegumes

–Lespedeza

–Clovers

–Alfalfa

39

Conservationpracticeswheregrasses

applicable

?Filterstrips

?FieldBorders

?GrassedWaterways

?Grassedback/Narrow-Basedterraces

?Pasture/Haylandplantings

?However…

40

?Forerosioncontrol,thesod-forminggrasses

usuallydoabetterjobthanthebunchgrasses.

–Erosionbetweentheclumps.

?Mostofthenativewarmseasongrasses:

–Moreexpensivetoestablish

–Toughertogetastand(take2Xaslong)

–Tallfescuegivesarelativelyquickstand.Relatively

cheapseed.

41

VegetativeBarriers

?Someolder(e.g.1940s)extensionpublications

recommendplantingNWSGindensestripsalongcontour

toreduceoverlandflow

?Recentresearchshowsthecombinationofcool-season

filterstripsandvegetativebarrierstobeeffectivein

reducingsedimentmovement

?Stiff-stemmedgrassesnotyetpopularinMOnor

specificallylistedinUSDAtechnicalguidesasapractice–

insteadrelyuponherbaceous/woodyspecies(e.g.

blackberry,shrubs,etc.)

?Potentialwildlifeandwaterqualitybenefits?

?SeeMUExtGuideG1653

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25Jan2017

8

VegetativeBarrier(grass)

NRCS-PA43

Largeopenfields

“Edge”

?Forspeciesdiversityandhighnumbersof

wildlifeintheOzarks,managetocreate

“edge”

?“Edge”=wheredifferenthabitattypesmeet

44

BRUSH

WOODSCROP

PASTURE

4546

47

ForestOpeningbetweentwoopenfields.

Mixedhabitat

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25Jan2017

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Impactofdifferentpracticesandon

aquaticandterrestrialwildlife

49

Croplandpractices

?CropRotation-

–Goodrotationhelpsreduceaverageannual

erosionandrunoff

–Goodrotationhelpsprovidediversitytothe

dietofwildlife.

–Includeforage(clovers/alfalfa)andsmall

grainsinrotation,alongwithgraincrops

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Corn-Soybeans-Wheat-Clover

CropRotationyear1

SOYBEANSSOYBEANS

51

CropRotationyear2

CORNCORN

52

CropRotation-better

CORN

53

SOYBEANS

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25Jan2017

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Idealifwildlifemajorobjective

?Leavesomestandingcrop(notharvested)for

wildlife

??acreforeach40acres

–Planted(grassfarms)orleftstanding

?Leaveinpatchesorstripsneargoodcover

(brush,weedy,grasses,forest)

55

CROPLEFTSTANDINGAFTERHARVESTFORWILDLIFE

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57

?ConservationTillageorNo-Till

–Themoretillage,themoreerosionand

runoff.

–Themoretillage,themoregrainand

residuethatisburied,thuslessfoodand

coverforwildlife.

58

59

Effectoftillageonwildlife

Foragingtimeneededforaquailchicktoobtain

minimumdailyrequirementofinsects:

?Conventionally-tilledsoybeans:22hrs

?No-tillsoybeans:4.2hrs

?Naturalareas(“idealquailhabitat”):4.3hrs

No-tillresultedinhigherdensityofbirdsand

nests,greatervariety

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25Jan2017

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?Terraces

–Reduceerosionandrunoff

–Helpswaterqualityandaquaticspecies.

–Helpsterrestrialspeciesbyimproving

ecosystem.Reallyhelpsif:

?Narrow-baseorgrassed-backterracesused

insteadofbroad-based,BUTonlybeneficialif

grassesare“wildlifefriendly”

61

Canprovidehabitat

diversitywithinlargecrop

field:

escapecover,

nestingcover,

bedding…

62

Sameistruewith:

?Strip-croppingandcontourbufferstrips

63Productionisthegoalonthisfarm64

Productionprobablyisnotthemaingoalonthisfarm!65

?Grassedwaterways

–Excellentforcontrollingerosion(gully),excellent

forwaterquality

–Goodforwildlifeasfood,escapecover,

resting/beddingcover.Maynotbethatgoodfor

nestingcover.Why?

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25Jan2017

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67

?FieldBorders

–Goodforerosion,runoffcontrol

–Goodforwildlife

?Asourceofinsectsandseedsforanimals

?Asourcefornesting,resting/beddingcover

–Iftherightspeciesofgrassused

?30’minimumforwildlife

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69

?FilterStrips

–Grassedareabetweenstreamandproduction

fields.

–Excellentsediment/nutrient/pesticidecontrol.

–Excellentforwildlife,especiallynexttoacropfield

andwoodedriparianforestbuffer.

?Usewildlifefriendlygrass

?30’minimum

70

Nativewarmseasongrasses

Shrubbycover

Existingtrees

Diskedstrip/foodplot

Stream

PastureorHay

71

?RiparianForestBuffer

–Againexcellentallaroundpracticeforall

resources

–Aquaticspecies

?Rootwadsandfallenlimbsforfishcover

?Insectsforfishofftrees

?Leavesandorganicmaterialforaquaticinsects

–Detritis

?Shadewater-lowertemperatures

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25Jan2017

13

Forterrestrials:

?Food,shelter,

roosting,nesting,

dens,travellanes,

bedding,resting

?Almostallspecies

benefit

73

StreambankStabilization

Waterquality,fish/aquatichabitat

74

?ErosionControlStructures

–Excellenterosioncontrol

–Waytoincreasewildlifeandaquatics

(ifdesignedtoholdwater)

?Fisheriesresource,waterfowl

–Watersourceforwildlife-drinking

–Mink,raccoons,muskrats,beaver

75

Wetlands

?Goodforwater

quality;good

forwildlife

–Especially

waterfowl.

?Provideswater

neededfor

survivalfor

otherspecies

76

?GrasslandSystemsforlivestock

–High-DensityandManagementIntensive

Grazing

?excellenterosion/runoffcontrol

–Wildlifewillincreaseifmanagedproperly

?Promotingdiversepopulationofplants

?Providingcoverandfood.

?Iffarmisallfescue,wildlifediversitydecreases

77

?GrasslandSystemsforlivestock2

–Incorporatemixtureofnativewarm-seasongrass

andcool-seasongrassinthesystem.

?i.e.nomonoculturestands

–Ifhay,leaveunmowedstripsalongedge,

especiallyaroundcover.

–Iffarmisallgrass,plantannualfoodplotsfor

winterfood

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25Jan2017

14

Grassmanagementandwildlife

?Mustbemanaged

(pasture,waterways,filter

strips,fieldborders…)

?Don’tallowtogrowtoo

thickandrank

–Prescribedburning

–Lightdisking

?Promotesopenground,

weed(seed)production

–Herbicidesforgrass

suppression

–High-densitygrazing?

79

Grassmanagementandwildlife

?Donotmow/clipMay1-July15.

–primarynestingseason

?Maintainlegumecomponent

–Seedmoreifneeded

80

ExcludeLivestockfromstreams/woods

81

Forestrymanagementpractices

?Timberharvests

?Ifdoneright,shouldimprovewildlifehabitat.

–Openupcanopyforgrowth,seedproduction,

grasses,understory

–Selectiveharvest

–Leavedentreesandbetterseedproducers

–Makebrushpiles

82

Howtomakesoilandwaterconservationwork

togetherforwildlife

?Implementthepracticesneededtokeepthe

soil,nutrient,pesticides,manureonthefield,

withinthefield

–Considerationforgrass,shrub,treespecies

?Breakuplargefieldsbyprovidingmore

diversecover

?Breakuplargefarmswithadiverseoperation

(crop,livestock,forestry)

83

Howtomakesoilandwaterconservationwork

togetherforwildlife2

?Leaveoddly-shapedareasstrictlyforwildlife

(toohardtogettowithequipment,poorsoil,

pooryield,inacorner,etc.)

–Again,creatingdiversity

?Leave

–Weeds(ragweed,blackberry,foxtails,

smartweeds…)

–Brushyfencerows

–Woods

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25Jan2017

15

Poorwildlifecommunity(640acres)

85

Better(640acres)

86

Conclusion

?Cansoilandwaterconservationpractices

benefitfishandwildlife?

–Yes,butifwildlifeisahighpriority,itwillrequire

additionaltime,effort,money

87

WaterErosion&Sedimentation

Lecture03

ReadCh4,8-3thru8-6.4,

and15thru15-3.4

88

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