Filters: Tags: Driftless Area (X)3 results (41ms)
Official Recognized Boundaries of Fish Habitat Partnerships of the National Fish Habitat Partnership, 2013
This geodatabase contains the official partnership boundaries of the National Fish Habitat Partnership (NFHP). Several boundaries were originally developed by the United States Fish and Wildlife Service and were updated in 2013 to reflect revisions from the recognized Fish Habitat Partnerships (FHPs) of the National Fish Habitat Partnership. For the remaining FHPs, the boundaries were developed in 2013 to reflect the boundary as defined by the respective partnerships. The geodatabase contains two feature datasets. The 'Boundaries' feature dataset includes official partnership boundaries. The 'Subregions_States' feature dataset includes partnership boundaries along with state and/or subregion boundaries.
Habitat selection, movement patterns, and hazards encountered by Northern Leopard Frogs (Lithobates pipiens) in an agricultural landscape: Data
Telemetry data for 59 Northern Leopard Frogs (Lithobates pipiens) breeding in ponds in Houston and Winona Counties, MN; 2001-2002. Agricultural intensification is causing declines in many wildlife species, including Northern Leopard Frogs (Lithobates pipiens). Specific information about frog movements, habitat selection, and sources of mortality can be used to inform conservation-focused land management and acquisition. We studied Northern Leopard Frogs in southeastern Minnesota, part of the Driftless Area ecoregion, characterized by hills and valleys and a mix of agriculture, forests, small towns and farmsteads. In this area, small farm ponds, originally built to control soil erosion are used by the species for...
Understanding the time scales and pathways for response and recovery of rivers and floodplains to episodic changes in erosion and sedimentation has been a long standing issue in fluvial geomorphology. Floodplains are an important component of watershed systems because they affect downstream storage and delivery of overbank flood waters, and they also serve as sources and temporary sinks for sediments and toxic substances delivered by river systems. Here, 14C and 137Cs isotopic dating methods are used along with ages of culturally related phenomena associated with mining and agriculture to determine rates of sedimentation and morphologic change for a reach of the upper Mississippi River and adjacent tributaries in...