Plant succession on glacial moraines in the Arctic Brooks Range along a >125,000-year glacial chronosequence/toposequence ...

Widespread glacial retreat is now occurring in many arctic mountain ranges, yet little is known about primary succession following deglaciation in these settings. Newly created habitats could provide refugia for flora and fauna whose ranges are threatened elsewhere by rapid warming. To assess vegeta...

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Bibliographic Details
Main Authors: Kasanke, Shawnee A., Walker, Donald A., Chapin, F. Stuart, Mann, Daniel H.
Format: Dataset
Language:unknown
Published: Taylor & Francis 2023
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.22277032
https://tandf.figshare.com/articles/dataset/Plant_succession_on_glacial_moraines_in_the_Arctic_Brooks_Range_along_a_125_000-year_glacial_chronosequence_toposequence/22277032
Description
Summary:Widespread glacial retreat is now occurring in many arctic mountain ranges, yet little is known about primary succession following deglaciation in these settings. Newly created habitats could provide refugia for flora and fauna whose ranges are threatened elsewhere by rapid warming. To assess vegetation responses to glacial retreat in an arctic–alpine setting, we first describe plant community development on two recently deglaciated moraines in the Brooks Range. We then compare these recent communities with communities developed along a moraine chronosequence that spans >125,000 years and ranges in altitude between 800 and 1,700 m.a.s.l. Results show that (1) within twenty-two to thirty-six years following deglaciation, primary succession begins with the assembly of small communities of eight to thirteen vascular and nonvascular plant species; (2) species turnover is low, with many pioneer taxa, particularly lichens, persisting at the oldest sites and across all altitudes; and (3) overall, succession is ...