A testate amoeba-based transfer function for paleohydrological reconstruction from boreal and subarctic peatlands in northeastern Canada

Autor: Michelle Garneau, Alexandre Lamarre, Étienne Boucher, Gabriel Magnan
Rok vydání: 2013
Předmět:
Zdroj: Quaternary International. 306:88-96
ISSN: 1040-6182
Popis: Testate amoebae are common proxy for water table depth in peatlands and are commonly used to reconstruct past hydroclimatic conditions. In northeastern America, previous transfer function development was mostly limited to ombrotrophic peatlands from continental and/or oceanic contexts. This study provides a greater range of modern analogues (n ¼ 206) from ombrotrophic to poor minerotrophic peatlands along an ecoclimatic gradient from boreal to subarctic in both continental and oceanic regions. Multivariate analysis confirmed that water table depth is the dominant control on species distribution, and a new transfer function was developed for this environmental parameter. The WA.inv model has a RMSEP of 5.44 cm and R
Databáze: OpenAIRE