Sensitivity of tropical pendant bryophytes : results from a translocation experiment along an elevation gradient

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http://hdl.handle.net/10138/315803

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Stam , Å C S , Anttila , J , Pellikka , P K E & Rikkinen , J K 2020 , ' Sensitivity of tropical pendant bryophytes : results from a translocation experiment along an elevation gradient ' , Annales Botanici Fennici , vol. 57 , no. 1-3 , pp. 71–81 . https://doi.org/10.5735/085.057.0110

Title: Sensitivity of tropical pendant bryophytes : results from a translocation experiment along an elevation gradient
Author: Stam, Åsa Charlotta Sofia; Anttila, Jani; Pellikka, Petri Kauko Emil; Rikkinen, Jouko Kalevi
Contributor: University of Helsinki, Organismal and Evolutionary Biology Research Programme
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Botany
Date: 2020-05
Language: eng
Number of pages: 11
Belongs to series: Annales Botanici Fennici
ISSN: 0003-3847
URI: http://hdl.handle.net/10138/315803
Abstract: We studied growth of three epiphytic bryophyte species in Kenya to determine their sensitivity to environmental changes. Bryophytes collected from a cool and moist upper montane forest were used to prepare 180 pendant transplants. Sixty transplants were placed in their natural habitat while 120 were transferred to two warmer and drier sites in a lower montane forest. After one year, all the transplants recovered from the lower mon-tane forest were transferred back to the upper montane forest. In the third year, half of the remaining transplants were left in their location, and half transferred to an eucalyptus plantation forest, both in the upper montane zone. After each year subsamples were taken from each group for growth measurements. The epiphytic bryophytes demonstrated considerable resilience during the experiment. They clearly suffered from the warm and dry conditions of the lower montane forest, but quickly recovered and then exhibited growth rates comparable to those of the controls. In the third year there was no statistical difference in the growth of transplants in their natural location and in the eucalyptus plantation. This indicates that the lack of suitable substrate is the primary factor limiting bryophyte biomass in plantation forests rather than unsuitable microclimate per se.
Subject: 1181 Ecology, evolutionary biology
Moss
canopy
epiphyte
growth
microclimate
bryophyte
Orthostichella
Squamidium
climate change
vegetation
EPIPHYTIC BRYOPHYTES
CLIMATE-CHANGE
HABITAT FRAGMENTATION
NONVASCULAR EPIPHYTES
RAIN-FOREST
GROWTH
BIODIVERSITY
COMMUNITIES
LANDSCAPE
DIVERSITY
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