Posted 29 January 2009 - 07:33 PM
See the symposia proposal I was forwarded below. Our data set is thankfully a gold mine for headwater streams, though it's definately not high up on my interests, if anything opposite. I was suprised to see how many oral presentations and posters were canceled on last years schedule so I may also present a native fish conservation poster that I originally decided against until next years SD-AFS meeting. I think the meeting circuit and process is in for some changes in the coming years. Having to submit proposals far in advance of registering is just not really conducive to lean travel budgets and approval by bean counters.
SYMPOSIA DESCRIPTION --- The diversity of life contained in headwater streams (springs, intermittent, first and second-order streams) contributes to the overall biodiversity of a river system. Small streams differ widely in their physical, chemical, and biotic attributes, and provide habitats for a range of unique species. Headwater species include permanent residents as well as migrants that travel to headwaters at particular seasons or life stages. Movement by migrant’s and stream flow link headwater streams with downstream rivers and the terrestrial ecosystem. Additionally, the exports of headwater streams (emergent and drifting insects, detritus, sediment, etc.) play a key role in structuring downstream river ecology. Degradation and loss of headwaters and their connectivity to ecosystems downstream threaten the biological diversity of entire river networks. Across North America, headwater streams have different functions and contributions to the ecological framework. In this symposium, we will explore the diversity between headwater systems across North America and how these unique systems interact with downstream rivers and their terrestrial ecosystem. To assist us we have gathered speakers across a wide range of geographies (Great Plains, Atlantic, Pacific and Gulf Coasts, Appalachians, and Rocky Mountains) and systems (Deserts, Forests, Grasslands, Urban, and Coastal Plains).