Plant rarity is considered a useful predictor of the extinction risk of species. However, apparent rarity can emerge from incomplete data sets or incorrect sampling. Epiphyllous bryophytes are a poorly collected and taxonomically complicated group, with incompletely known distribution patterns. In this paper we explore the diversity patterns and meso- and micro-habitat specialization of common and rare epiphyllous bryophyte species, and evaluate the threat status of Aphanolejeunea gracilis, Leptolejeunea tridentata, and Otolejeunea schnellii. Epiphylls were collected from 240 samples (10 ×10 cm) in 30 plots of 5 ×5 m in superhumid lowland forest of the Chocó, Colombia. Our results indicate that epiphyll diversity and species composition is similar among palm and non-palm leaves. Disturbance had a negative effect on epiphyll cover, species richness, and diversity of rare species. Data on rare species did not correlate with global or national red lists, indicating that detailed surveys are necessary to accurately assess the threat status of “rare” species.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 32 • No. 2