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(Click for frequent words.) 61 wetlands prairies 59 prairie plantings 59 wetlands floodplains 59 woodlands wetlands 58 riparian restoration 58 wetlands woodlands 58 scrub shrub 58 vegetated swales 58 campgrounds picnic 57 remediating contaminated 57 wetland restorations 57 bogs swamps 57 nonmotorized trails 57 parks greenbelts 57 piping plover nesting 57 floodplains wetlands 57 Brownfields redevelopment 57 cypress tupelo swamp 57 cropland pastures 57 Ossipee Pine Barrens 56 storm drains unclogged 56 woodlands meadows 56 swamps marshes 56 hydric soils 56 Wildfire scorches 56 streambank stabilization 56 riparian woodland 56 Swollen corpses dotted 56 prairies wetlands 56 shortleaf pine 55 Cottontails seek 55 Coromandel Great Barrier 55 unsewered 55 Oldmans Creek 55 dressers picnic tables 55 permeable paving 55 grow yerba mansa 55 prairie wildflowers 55 riparian corridors 55 riparian plantings 54 Dear EarthTalk Are 54 Tropical rainforests 54 irrigate lawns 54 polluted stormwater runoff 54 Saugatuck Dunes State 54 gopher tortoise habitat 54 estuarine habitats 54 Idaho Owyhee Canyonlands 54 berming 54 permeable asphalt 54 climatically suitable 54 Longleaf pine 54 wetland riparian 54 pervious pavers 54 pervious paving 54 woodland grassland 54 Wildfires ravage 54 highways Sandherr 54 firewise 54 Algodones Dunes 54 shorelands 53 Roadsides 53 parks greenways 53 Garry oak 53 Asterisks indicate required 53 wetland buffers 53 wildlife habitat watersheds 53 riparian buffer zones 53 Evitts Creek 53 upland meadows 53 xeriscapes 53 ornamental plantings 53 wetlands grasslands 53 vegetated buffers 53 hiking trails picnic 53 UNION VALLEY RESERVOIR 53 unfragmented forest 53 bottomland forests 53 pristine woodlands 53 poison underground aquifers 53 lakefronts 53 lakesides 53 shoreline buffers 53 fencerows 53 mines quarries 53 SUSANNAH BRYAN covers 53 trails greenways 53 mulch compost 53 Flooding closes 53 forested wetlands 53 pervious surfaces 53 Forested 53 geoduck harvesting 53 Environmentally Sensitive 53 nonnative invasive 52 forested buffers 52 Wildfire chars 52 expansive lawns 52 unroaded 52 Vegetable gardens 52 brownfield regeneration 52 nonconsumptive 52 bio swales 52 upland habitats 52 Chehalis Basin 52 deer wintering 52 Authoritarian regimes block 52 Artificial reefs 52 rainwater catchments 52 desalinate brackish 52 irrigations systems 52 Mike Taugher covers 52 riverway 52 irrigating lawns 52 contiguous tracts 52 arboretum overlooking 52 waterfowl nesting 52 forested watersheds 52 highly erodible soils 52 nutria ate 52 environmentally sensitive 52 poinciana trees 52 DeLaura Beach 52 biodiverse ecosystems 52 Furnace Pond 52 stormwater ponds 52 riparian wetland 52 redevelop brownfield 52 pathways picnic tables 52 rivers estuaries 52 Storms pummel 52 redeveloping brownfields 52 designated scenic byways 52 wildfires scorch 52 Goodan Ranch 52 freshwater canals 52 Ornamental Gardens 52 wetlands flood plains 52 rocky intertidal 52 mangrove plantations 52 revegetated 52 Storm wreaks havoc 52 cypress tupelo 52 Ponding 51 permeable surfaces 51 Stoltzfus conveyed 51 Windbreaks 51 Wekiwa 51 unburned vegetation 51 sledding playgrounds 51 Eelgrass 51 shelterbelts 51 Vasden displayed kenaf booms 51 scenic lookouts 51 riparian habitats 51 grassed waterways 51 nonpoint pollution 51 playgrounds swimming pools 51 woodland habitats 51 Overgrown grass 51 revegetating 51 archaeologically sensitive 51 fertilizing lawns 51 Hiking trails 51 lush forested 51 upland forests 51 marshes swamps 51 broadleaf woodland 51 geothermal hydroelectric 51 forests meadows 51 hiking biking trails 51 transfrontier conservation 51 dams spillways 51 early successional forest 51 Carvins Cove 51 freezing drizzle coated 51 vegetated buffer 51 Uttarakhand Himachal Pradesh 51 oyster aquaculture 51 Carden Alvar 51 piñon juniper 51 picnic tables restrooms 51 watchable wildlife 51 include cropland pastureland 51 nonmotorized recreation 51 Wekiwa Springs State 51 installing drip irrigation 51 Mannsdale 51 Hine emerald dragonfly 51 soils sediments 51 Fire chars 51 Rooftop gardens 51 absorb rainwater 51 shorebird nesting 51 Shopton 51 Soapstone Prairie Natural 51 intertidal habitat 51 waterfalls ponds 51 Sabal palms 51 streamside forests 51 Kohler Andrae 51 Trees shrubs 51 deep saline aquifer 51 buffer strips 51 stream buffers 51 Reserve Enhancement 51 re vegetate 51 Cattle graze 51 marine estuarine 51 percolation pits 51 Claim Blocks approximately 51 permeable pavements 51 Seagrasses 51 Anne Arundel Calvert 50 eliminating mosquito breeding 50 impermeable surface 50 primitive campground 50 Scrub jay 50 Saugatuck Dunes 50 Vast expanses 50 Nonmotorized 50 coldwater streams 50 perennials ornamental grasses 50 Firebreaks 50 coastal dune 50 floodplain easement 50 freshwater wetland 50 Menantico 50 Brzuszek 50 renourish beaches 50 Jonah Pinedale 50 cyanobacterial blooms 50 Drought tolerant plants 50 Wessex Downs 50 Pipers Gap 50 Greater Buffalo Wallow 50 nanotechnology supercomputing 50 freshwater lakes rivers 50 riparian forests 50 pine beetle infested 50 Clatsop Tillamook 50 Prescribed burning 50 gravel quarries 50 Becker Beltrami 50 hydrologically connected 50 Buttertubs Marsh 50 grasses wildflowers 50 recharges groundwater 50 cottonwood willow 50 bioretention 50 Brushy Lake 50 demolish dilapidated 50 irrigate landscaping 50 grasslands woodlands 50 tussock grasslands 50 Pickerington Ponds 50 Chisos Basin 50 hydromulch 50 wildlife corridors 50 intensively cultivated 50 Pasayten Wilderness Area 50 xeric 50 backcountry campsites 50 uninfested 50 mangroves coral reefs 50 Searchlight Laughlin 50 replenish aquifers 50 sage scrub 50 developable acreage 50 Boatyards 50 wildlife underpasses 50 Prescribed burn 50 lowbush blueberry 50 overfertilizing 50 OHV trails 50 Retention ponds 50 LAKE OROVILLE 50 Hellam Twp 50 squirrels opossums 50 MacFarlane Borstein 50 hiking picnicking 50 shrub planting 50 patios walkways 50 Prescribed burn planned 50 Conservation tillage 50 Belwin Conservancy 50 Developable 50 salt marsh habitat 50 hikers birders 50 Nippersink Creek 50 wildflower plantings 50 deicing salts 50 install microgeneration 50 vegetative buffers 50 TRAFFIC WATCH Work 50 leaky septic tanks 50 Controlled burns 50 Freshwater mussels 50 Harvesting rainwater 50 conser vation 50 freshwater tidal marsh 50 brownfields redevelopment 50 meadows woodlands 50 subdivisions strip malls 50 manzanitas 50 Bookcliff Gardens 50 Mittry Lake 50 shrubs grasses 50 Vernal pools 50 monoculture crops 50 picnic tables benches 50 greenhouses nurseries 50 Bonneau Ferry 50 Primitive camping 50 Tinakori Hill 49 brooks streams 49 forested wetland 49 Conkle Hollow 49 sediment basins 49 SWCDs 49 mesic 49 Dense forests 49 oysters shrimp crabs 49 Pawlings 49 removing contaminated sediments 49 nonmotorized trail 49 Monashka Bay 49 riparian zones 49 Environmental Quality Incentive Program 49 Adaptive reuse 49 Ask Eartha Steward 49 Muddy Hollow 49 Steep slopes 49 migratory birds nest 49 blufflands 49 photosynthesis Solazyme does 49 unburned fuels 49 Seagrass beds 49 archeologically sensitive 49 inland bays 49 stockwater 49 colonial waterbirds 49 re vegetating 49 Cucumber Gulch 49 Quebec Lowlands 49 Brices Creek 49 benches bike racks 49 visiting http:/www.dmnews.com/subscribe.php 49 Perins Peak 49 Alan Broadbent Expert 49 Birding Hike 49 grasses forbs 49 remnant bushland 49 hiker biker trails 49 blew flaming embers 49 recharging aquifers 49 toxins leaching 49 shrub plantings 49 wetland vegetation 49 composting mulching 49 Tumamoc 49 buffel grass 49 Mud bogging 49 greenscape 49 Lockwood Folly 49 Coconino Kaibab 49 Szcodronski 49 Peconic Estuary 49 Harns Marsh 49 Agamenticus 49 Placer Vineyards 49 harvests rainwater 49 restrooms picnic tables 49 Opuha 49 Sourland Mountain 49 Freedom Giant Miscanthus 49 ecologically sensitive areas 49 Asphalt paving 49 LaPlatte River 49 trails boardwalks 49 wintering ducks 49 perennials shrubs trees 49 Hylebos Creek 49 environmentally beneficial 49 riparian buffer 49 Project Webfoot 49 Hartwick Pines State 49 Facilities Restrooms 49 mangrove reforestation 49 Watering lawns 49 trees shrubs vines 49 Pellissippi Place 49 recharge underground aquifers 49 spokeswoman Marsha Karle 49 shorebird habitat 49 waste minimization recycling 49 deciduous shade 49 lakeshores 49 saltwater estuary 49 Jiggs Landing 49 pondless 49 western snowy plovers 49 porpoise vaults 49 Camanche Reservoir 49 condor sanctuary 49 Kachemak Drive 49 Glacial Heritage 49 cypress domes 49 pristine roadless 49 hardwood swamps 49 cropland pasture 49 shrub steppe 49 Teshekpuk 49 Gaviota coast 49 biofuels biopower 49 forestry residues 49 effluent reuse 49 hot springs geysers 49 Fellwood 49 unsewered areas 49 playa lakes 49 PROSSER LAKE 49 bioenergy feedstocks 49 nurseries greenhouses 49 Myakkahatchee Creek 49 wooded ravines 49 shellfishing waters 49 tidal estuaries 49 forested tract 49 including nanotechnology nanomagnetic 49 covering pristine beaches 49 Quarterpath Road 49 stormwater outfalls 49 Use soaker hoses 49 remnant vegetation 49 floodprone 49 chalk grassland 49 aquaculture ponds 49 weed infestation 49 fescue pastures 49 nurseries landscapers 49 invader bush 49 wildfire mitigation 49 Eliminate mosquito breeding 49 manmade ponds 49 inholdings 49 Driscoll Cottages 49 drainage swales 49 overhanging vegetation 49 Hiking biking camping 49 heavily treed 49 ponds waterfalls 49 Woodbury Cottage Grove 49 flower meadows 49 catchbasins 49 Ruddiman Creek 49 backwater sloughs 49 Herbicide spraying 49 lush emerald 48 nutrient leaching 48 Himachal Pradesh Uttarakhand 48 Derbyshire Leicestershire Lincolnshire 48 Galapagos volcano erupts 48 ORV trails 48 cedar glades 48 GulfMark operates 48 Feral hog 48 Waddle Ranch 48 scenic bluffs 48 Mangrove swamps 48 Grayland Beach 48 highly erodable 48 hiking trails wildlife habitats 48 ornamental shrubbery 48 Wildfire threatens 48 Aquetong 48 duneland 48 marginal cropland 48 stormwater retention ponds 48 Tipmont 48 irrigated cropping 48 Vacant lots 48 Cattus Island 48 Prescribed fires 48 blueways 48 bottomland hardwood 48 pollinator habitat 48 Walled gardens 48 Northop Hall v 48 woodlands grasslands 48 Picayune Strand 48 seedling giveaway 48 oak hickory forest 48 zoos aquaria 48 thickly vegetated 48 nongame animals 48 benches trash cans 48 erodible 48 wetland ecology 48 Albemarle Pamlico 48 rainwater catchment systems 48 Lower Howsell Road 48 Kachina Peaks Wilderness 48 Lake Gerar 48 Ormond Crossings 48 undergrounding utilities 48 Buckwalter tract 48 dune restoration 48 Tinkers Creek 48 Vinnie Picard spokesman 48 undeveloped parkland 48 stlucieco.gov 48 Heavy Rains Flood 48 transfrontier conservation areas 48 geologically hazardous 48 Ardenwood Boulevard 48 Cheesman Reservoir 48 Lake Musconetcong 48 prairie grassland 48 conifer needles 48 Tar Pamlico 48 fertilizers herbicides 48 oak savannahs 48 Conchas Lake 48 seabird nesting 48 El Santuario gold 48 migratory bird flyway 48 Louisiana coastal marshes 48 nearshore marine 48 Handicapped accessibility 48 cajeput 48 Great Crested Newts 48 vegetated roofs 48 migratory birds burrowing owls 48 forested lands 48 raingardens 48 Straw bale 48 Glenburn Pond 48 piping Laskey 48 Venezuela expropriates 48 melons squash 48 Trap Pond 48 landscaped greenery 48 Mattresses hung 48 Clabber Creek 48 Barataria basin 48 Citrus groves 48 raw sewage discharges 48 Tusayan Ranger District 48 storm drain stenciling 48 redevelop brownfields 48 dump untreated sewage 48 worthy marital discord 48 Arahuay lone industry 48 fencelines 48 tidal wetland 48 Nunns Creek 48 bicyclist stuntman 48 AONBs 48 Balcones Canyonlands Preserve 48 Paso Robles viticultural 48 Heretaunga Plains 48 Brisbane Ranges 48 Corkscrew Swamp 48 LEDBURY Proposed 48 riparian woodlands 48 permaculture principles 48 garages carports 48 Tall grasses 48 complementary agronomy feed 48 Pre emergent herbicides 48 limestone grassland 48 Tib Lake 48 nesting herons 48 Keith Stangler 48 brackish groundwater 48 biogas biomass 48 erosion sedimentation 48 coastal bays 48 Subdividing 48 patios driveways 48 areas 48 Buffer zones 48 Sonoran Preserve 48 bottomland hardwoods 48 permeable pavers 48 Polipoli 48 perennials grasses 48 Renourishment 48 Historic Byway 48 Wenyu River 48 perpetual conservation easements 48 Overgrown trees 48 curbs gutters sidewalks 48 Topographical maps 48 Codorus Twp 48 kelowna.ca 48 riparian forest 48 Greens Coulee 48 McDowell Nature Preserve 48 riverain 48 riversides 48 landscaped parkland 48 Megunticook River 48 bluffland 48 desert tortoise habitat 48 Panthertown Valley 48 www.ci.berkeley.ca.us commissions 48 Catchments 48 resembled moonscape 48 driveways walkways 48 Nassawango Creek 48 upland habitat 48 sidewalks streetlights 48 dot cobblestone plaza 48 Sespe Condor Sanctuary 48 bays estuaries 48 Regionwide surveys predict 48 Ralph Albanir 48 Hakalau Forest National 48 Crow Nest peninsula 48 aquifer recharge 48 motorized recreational 48 wetland restoration 48 PA Wilds 48 oak savannah 48 Wiltshire Gloucestershire 48 dwarf evergreens 48 tar balls ashore 48 outdoor privies 48 footpaths bridleways 48 unmowed 48 parklike atmosphere 48 Hardscapes 48 Cypress Slough 48 Seawater desalination 48 Peatlands 48 culverts ditches 48 Ka Iwi 48 switchgrass sugar cane 48 Xeriscape Gardening Going 48 stormwater basins 48 Vanden Noven 48 tallgrass prairies 48 mangrove shorelines 48 forested tracts 48 phosphorus runoff 48 Alageta Road 48 shrub beds 48 Driftwood Shores 48 hilly rocky 48 Dredged 47 inventoried roadless 47 leaky septic 47 hikers bicyclists 47 aquatic biodiversity 47 herbaceous vegetation 47 Tawharanui 47 oak hammock 47 Flowering trees 47 Brackish water 47 unfarmed 47 fish reptiles amphibians 47 Wildfire explodes 47 nurseries orchards 47 daylighted 47 Genetically modified organisms 47 miscanthus grass 47 hazardous waste landfills 47 peacocks roam 47 wildflowers bloom 47 Kittitas Yakima 47 dune lakes 47 coastal marine ecosystems 47 Director Tamara Horcajo 47 Diving kayaking trekking 47 Stormwater drains 47 wildife 47 zoysiagrass 47 Perchlorate contamination 47 securit MORE 47 Environmentally Sensitive Area 47 greenspaces 47 Fire scorches 47 meadow grasses 47 Whatcom watershed 47 Loysville rural 47 chalk downland 47 hypersaline 47 irrigable 47 Appalachia thinly populated 47 marine mammals seabirds 47 ReTree Nebraska 47 Kopachuck State 47 xeriscaped 47 Yuma clapper rail 47 Hiking Biking 47 Flooding Threatens 47 jumps aqueduct 47 sage grouse mating 47 spawning habitats 47 PARK www.ebparks.org 47 headwater stream 47 aquifer recharge zone 47 caribou calving 47 Curzon Mill 47 airsheds 47 cypress wetlands 47 Heavily populated 47 flammable vegetation 47 Neighbourhood Safer Places 47 native prairie grasses 47 Succulent Karoo 47 NORTH COAST GARDENING 47 SGLs 47 Sourlands 47 closed Jodie Hartfield 47 Teton Wilderness 47 Nimkin 47 Parkins Mill 47 Volusia Forever 47 MODIS detected 47 Bettendorf Davenport 47 subsurface minerals 47 Headwaters Recreation 47 Hoback Ranches 47 El Yunque rain 47 apples pears plums 47 blackbirds rained onto 47 woodfuel 47 deciduous hardwood 47 www.state.nj.us dep 47 roadside verges 47 energyefficient 47 daylilies hostas 47 endangered chinook salmon 47 Fellini Dante 47 moss draped oak 47 inter tidal 47 catchment basins 47 nonpotable 47 grazing permittees 47 Attwater Prairie Chicken 47 eelgrass habitat 47 willow poplar 47 Shoreham Harbour 47 Wacissa 47 Tahquamenon Falls State 47 forest thinnings 47 Cul de sacs 47 Swingle Bench 47 grass sagebrush 47 picnic groves 47 brushy wooded 47 Inland Bays watershed 47 horticulture floriculture 47 Upper Ojai Matilija 47 Dixie Caverns 47 Mangrove forests 47 waterscapes 47 farming ranching 47 culm banks 47 tidal salt marsh 47 adaptive reuses 47 projects streamside buffer 47 Fremont Winema National 47 Perennials annuals 47 San Felasco Hammock 47 Canada geese mallards 47 visit www.mass.gov dcr 47 waterfowl shorebirds 47 disinfection instrumentation 47 interpretative signage 47 Wenaha Tucannon Wilderness 47 Cootes Paradise 47 Tent caterpillars 47 leaks resembled geyser 47 money plowing driveways 47 cro MORE 47 Decomposed body found 47 Bald eagles nest 47 Uinta Wasatch Cache 47 Kaweah Oaks 47 shallow weedy 47 Alligator gar 47 benches trash receptacles 47 densely treed 47 rating nonsignificant 47 Iroquois Confederacy oversees 47 lush tropical rainforest 47 grasses shrubs 47 chemical fertilizers herbicides 47 Backburning 47 blue heron rookery 47 revitalize downtowns 47 emerald ash borer quarantine 47 sage grouse nesting 47 cattle ranching sugarcane 47 oceanside coasts 47 Orland Grassland 47 Wilsons Prom 47 Garbage dumps 47 Arapaho Roosevelt 47 wildflowers ferns 47 prehistoric archaeological 47 Water hyacinth 47 drought tolerant landscaping 47 Apartment complexes 47 IN YOUR GARDEN 47 primitive campsites 47 viewscapes 47 aquatic hitchhikers 47 pinyon juniper 47 recharge groundwater 47 Sand dunes 47 fertilized lawns 47 rainwater cisterns 47 CONSERVATION ORGANIZATION Hendersonville 47 deep saline aquifers 47 Tonner Canyon 47 Idaho Owyhee canyons Pictured 47 Shopton Road West 47 estuarine ecology 47 parklike grounds 47 agriculturally zoned 47 Sanitary sewer overflows 47 sandy shorelines 47 recharging groundwater 47 LISA J. HURIASH 47 shredded pine bark 47 Underpasses 47 Saltcedar 47 shoreland zone 47 GELV gasification technology 47 Biodegradable plastics 47 Icy patches 47 unplatted 47 landscaped boulevard 47 mangrove wetlands 47 Floodplains 47 Sunbathers ventured 47 Advanced Occupancy Sensing 47 bottomland hardwood forests 47 Parc Cybi 47 Leashed dogs 47 Cerrillos Hills 47 Castlewood Canyon 47 wildflower gardens 47 compensatory mitigation 47 conifer forest 47 manmade wetlands 47 Lisette Kaczka covers 47 Tunkhannock Creek 47 Gamebird 47 ForeverLawn 47 dense walkable 47 Brick kilns 47 corn soybeans sugar cane 47 patios decks 47 unicorporated 47 xeriscape garden 47 Aztec Ruins 47 coral reefs mangroves 47 Glastenbury 47 Tierra Rejada Valley 47 bioswale 47 Ecoregion 47 picnic ramadas 47 intertidal zones 47 Joe Malinconico covers 47 wetland ecosystem 47 NatureScape 47 duff layer 47 extract coalbed methane 47 walleye crappie 47 western meadowlarks 47 green manures 47 Broadkill River 47 mussel infestation 47 drought tolerant varieties 47 Culex species 47 biologically diverse ecosystems 47 Excess nutrients 47 hydroponic greenhouses 47 Jenner Headlands 47 Pupukea Paumalu 47 horticulture animal husbandry 47 agriculture horticulture 47 Salt marshes 47 wintering waterfowl 47 blueway 47 Waquoit Bay 47 Carmans River 47 elk feedgrounds 47 upland sandpipers 47 turtle nesting beaches 47 farmettes 47 www.dnr.state.md.us 47 Aberdeenshire Moray 46 decompose naturally 46 densely settled 46 Fort McMurray Grande Prairie 46 Grassy Knob 46 threatened woodland caribou 46 parks wildlife refuges 46 Lophelia 46 Brownfield Opportunity 46 interpretive signage 46 Keowee Toxaway 46 grassland habitats 46 Sinharaja 46 Maysan Dhi Qar 46 Rattlesnake Wilderness 46 brackish marsh 46 drought tolerant plantings 46 annexing unincorporated 46 Spenceville Wildlife Area 46 wetland soils 46 unzoned 46 spray buffer zones 46 Pedestrians scurried 46 NC Birding Trail 46 Wayne Nastri administrator 46 bahia grass 46 vermin composting 46 Marton Mere 46 degraded soils 46 Kayaker rescued 46 Sparta aquifer 46 Hauraki Gulf islands 46 porous pavers 46 Semiahmoo Spit 46 Lepes Road 46 blue lupines 46 hydroseeding 46 clergymen commemorated 46 riverfront walkway 46 Marane 46 Ridgegate 46 spatterdock 46 Armuchee Connector 46 Briarwood Heatherstone 46 conservation 46 azalea garden 46 grasslands wetlands 46 perfluorochemicals PFCs 46 Groundwater Guardian 46 grouse woodcock 46 heavily timbered 46 overthrust belt 46 Groundwater contamination 46 butterflies hummingbirds 46 Obed Wild 46 eelgrass meadows 46 Irrigating 46 shellfish harvested 46 Photovoltaic solar panels 46 wildlife habitats 46 Indira Prabha 46 Uncompahgre River 46 Peavine Trail 46 Roadless areas 46 Drought tolerant 46 Sawmill Own 46 freshwater swamps 46 Flood Warning Issued 46 streamside buffers 46 oak poplar 46 pollutes waterways 46 Floyds Fork 46 www.wohlfordlake.com 46 Floods swamp 46 Unami Creek 46 pollute rivers 46 farmable 46 Invasive plants 46 Econlockhatchee River 46 Mattawoman Creek 46 nesting waterfowl 46 GreenWorks 46 Pastures rangelands 46 endangered wood stork 46 estuaries bays 46 ornamental fountains 46 Unorganized Territory 46 Hallockville 46 bottomland hardwood forest 46 Bolinas Lagoon Preserve 46 Fiddyment Creek 46 reedbed 46 nontidal wetlands 46 ungrazed 46 lampreys spawn 46 within 1km radius 46 playparks 46 sidewalks curbs gutters 46 Sphagnum 46 scar tissue degenerative cysts 46 nonpoint source pollution