Academic Journals Database
Disseminating quality controlled scientific knowledge

The distribution of plants in Scoska Cave, North Yorkshire, and their relationship to light intensity.

ADD TO MY LIST
 
Author(s): Pentecost Allan | Zhaohui Zhang

Journal: International Journal of Speleology
ISSN 0392-6672

Volume: 30;
Issue: 1-4;
Start page: 27;
Date: 2001;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Caves | flora | bryophytes | light

ABSTRACT
The flora of a small limestone cave was investigated. A total of 59 species was recorded (4 algae, 3 lichens, 47 bryophytes, 4 ferns, 1 angiosperm) making it bryologically the richest cave in Britain and one of the richest in Europe. All but nine of the species had been recorded from other European caves. Species-richness declined irregullarly from the entrance (relative irradiance with respect to open sky 12%) to 34m depth (rel. irradiance 0.004%). Bryophytes were found at 0-16m depth where relative irradiance declined to 0.2% and only algae were encountered at 34m depth. While irradiance, which declined exponentially, was the major factor controlling plant distribution, substratum characteristics and surface moisture were also important.

Tango Jona
Tangokurs Rapperswil-Jona

     Save time & money - Smart Internet Solutions