Unique similarity of faunal communities across aquatic–terrestrial interfaces in a polar desert ecosystem

Critical transition zones, such as aquatic–terrestrial interfaces, have been recognized as important fea-tures in landscape ecology. Yet changes in the community structure of soil and sediment biota across aquatic–terrestrial boundaries remain rela-tively unstudied. We investigated the community str...

Full description

Bibliographic Details
Main Authors: Edward Ayres, Diana H. Wall, Byron J. Adams, John E. Barrett, Ross A. Virginia
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2007
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.662.9574
http://adamslab.byu.edu/Portals/74/docs/Papers/Ayres2007Ecosystems.pdf
Description
Summary:Critical transition zones, such as aquatic–terrestrial interfaces, have been recognized as important fea-tures in landscape ecology. Yet changes in the community structure of soil and sediment biota across aquatic–terrestrial boundaries remain rela-tively unstudied. We investigated the community structure of the dominant fauna, namely nema-todes, rotifers and tardigrades, across lake sedi-ment–soil transects in three basins in a species-poor, polar desert ecosystem (McMurdo Dry Val-leys, Antarctica). We also examined substrate (that is, soil and sediment) properties, including mois-ture, salinity, carbon, nitrogen and phosphate concentration, across these transects. Differences in