Current Research at End Creek

Columbia Spotted Frog Population Monitoring:

In April, 2008, we documented a breeding population of Columbia Spotted Frogs (Rana luteiventris) in one pond at End Creek. In 2009, we conducted a complete inventory of the entire wetland to establish baseline data for frog population numbers. We will continue to monitor breeding activity and frog numbers closely and will manage the area to develop suitable habitat.

Introduction of Douglas' Clover:

Douglas' Clover, Trifolium douglasii, is a threatened species in Oregon. We are experimenting with different protocols for introduction and establishment of a viable population on the End Creek floodplain.

Macroinvertebrates:

Undergraduate research students working with Dr. Karen Antell are monitoring development of aquatic macroinvertebrate populations in two perennial ponds. We hope to gain understanding of environmental factors that contribute to invertebrate species distributions, especially regarding snail species. Three common snail species occur at End Creek, with different population densities of each species in each of three perennial ponds. 

Floodplain Vegetation:

A unique assemblage of native wetland and vernal pool plants emerged from the soil seed bank in spring 2007.  Some of these species are undocumented historically in the Grande Ronde Valley and others are rare elsewhere in the valley due to habitat loss. Plant transects were established in summer 2008 to begin to monitor the recovery and establishment of this unique ecosystem and to assess presence and abundance of invasive plant species.

 

Anne Madsen (presenter) Maroinvertebrates in perennial ponds at End Creek; Spring Symposium, Eastern Oregon University, May 2008.