2009 LTER All Scientists Meeting - Paleoecology

Sampling spruce growth and climate sensitivity on glacial rivers of Alaska

Glenn Juday — Thu, 10 Sep 2009 22:07:12 +0000

Poster Number:

398

Presenter/Primary Author:

Glenn Juday

Co-Authors:

Claire Alix

Co-Authors:

Steve Winslow

We are examining the growth, growth history and climate sensitivity of white and black spruce trees on the floodplains of the major rivers fed by glacial meltwater in Interior Alaska. To date we have sampled 624 trees on 41 sites distributed across 1,783 km of the Yukon River, 375 km of the Tanana River, and 370 km of the Kuskokwim River, for a total of 2,528 km of river length.

Expansion of C3 shrublands into Jornada Basin LTER grasslands: broad spatial and long-term temporal scales

Curtis Monger — Thu, 27 Aug 2009 23:28:06 +0000

Poster Number:

289

Presenter/Primary Author:

Curtis Monger

Co-Authors:

Peters DPC

Co-Authors:

Rachal D

Numerous physical, chemical, and biological processes operate in positive feedback loops during the invasion of C3 shrubs into C4 grasslands. These processes occur at multiple spatial and temporal scales, ranging from a few mm2 over a period of weeks to hundreds of km2 over a period of millennia.

Reconstructing ecosystem structure and function: merging paleoecology and ecosystem ecology

Kendra McLauchlan — Tue, 30 Jun 2009 19:04:38 +0000

Final Report (Required, .pdf format only) :

Paleoecosystem Ecology Working Group

Organizer:

Kendra McLauchlan

Both slow and fast variables interact to produce ecosystem change observable in a human lifetime. Unfortunately, ecosystem processes that operate over hundreds to millions of years are difficult to document, but are likely essential for understanding future ecosystem changes. Ecologists have traditionally studied these long-term ecosystem variations using the chronosequence approach, which adopts a “space-for-time” substitution.

Preferred Dates:

Sept. 15

Working Group Duration:

Session Info

Session(s):

Working Group Session 2

Room:

Reusch Auditorium Hobbs