3 rd Generation Thunderstorm Map Predicted Duck Pair Accessibility - - PowerPoint PPT Presentation

Predicted Duck Pair Accessibility to Upland Nesting Habitat in the Prairie Pothole Region of Minnesota and Iowa

3rd Generation “Thunderstorm” Map

Grassland Bird Conservation Areas

Wetland Reserve Program rankings for the MN River watershed (20 = highest) Developed to identify wetland and grassland restoration priorities, based on a compilation of:

• 5 waterfowl species
• 9 shorebird species
• 9 grassland bird species
• 1 waterbird species

Status of the Restorable Wetlands Inventory

Mapping Completed 2001 - 2008

32,500 mi² Goals ls f for Inv Invent ntory Analyzed Area: Counties: 47 Co Comp mpleted t to Date Analyzed Area: 28,020 mi² Funded Work Area: 6,570 mi²

Completed In Progress

LCCMR has provided nearly $500,000 over last 2 years

MN DNR-delineated “Lakeshed” – Darker blues indicate more water accumulations at that point (flow accumulation grid)

To create flow accumulation grids, you must first use a topographic model of land surface and map surface run off pathways (generally also followed by tiles and ditches

Continue to make flow paths more and more refined

Until flow paths indicate where every 2 acres of the lakeshed sends its runoff

Flow networks created from flow accumulation grid with NWI wetlands (blue) and restorable wetlands (gray)

• Key Habitats

– Riverine – Riparian areas – Seasonal wetlands – Semipermanent wetlands – Forested/Shrub Scrub wetlands – Woodlands

Raccoon Homeranges Females ~4 sq. miles Males ~9 sq. miles

• Avg. 6.2 sq. miles

Based on information compiled in Predation Management Review.

Landscapes for Upland Sandpiper, Hudsonian Godwit, Dunlin, and White-rumped Sandpiper during Spring Migration

Average slope Percent grass Percent palustrine (ln) Proportion of temporary and seasonal

Predicted pairs/40 ac for 6 species (combined)

Additional models:

• CCSP
• WEME probability of use

With CRP Without CRP % lo loss Grass >1 ha 863,263 711,846 17. 17.5 Bobolink 888,863 626,152 29. 29.6 Clay-colored Sparrow 247,717 153,462 38. 38.1 Grasshopper Sparrow 198,298 128,308 35. 35.3 Savannah Sparrow 559,044 366,324 34. 34.5 Sedge Wren 730,540 502,674 31. 31.2 Le Conte’s Sparrow 261,169 123,973 52. 52.5

CRP and Grassland Birds

Core Areas:

• Large 5,000 to 300,000 acre landscapes (36 in total) that retain some features
• f a functioning prairie landscape and include 73% of Minnesota's remaining

native prairie

• Function as a habitat base for wildlife species needing large areas of natural

habitat

• Goal: reach 40% grassland and 20% wetland coverage within each Core Area

Corridors:

• Linear stretches of habitat 6 miles wide that connect Core Areas to each other

and moderate the effects of a highly fragmented landscape

• Function as dispersal corridors that allow an exchange of individuals and

genetics between populations

• Goal: 10% of each square mile in the Corridor be protected grassland and

wetland habitat

Corridor Complexes:

• 9 square mile habitat complexes established every 6 miles within the Corridors
• Function as habitat "stepping stones" for mobile wildlife species within the

Corridors

• Goal: reach 40% grassland and 20% wetland within each Corridor Complex

Agricultural Matrix:

• All the remaining area of the Prairie Region outside of Core Areas, Corridors,

and Corridor Complexes (21.7 Million Acres)

• Function as habitat for species adapted to live within an agricultural

countryside

• Goal: reach 10% perennial native perennial cover within each Ecological

Landtype Association

MN Prairie Landscape Conservation Plan