Species Richness and Cover of Orchids and Bromeliads on an Active Volcano


lava flows
primary succession
species richness

How to Cite

Gillespie, T. W. (2001). Species Richness and Cover of Orchids and Bromeliads on an Active Volcano. Selbyana, 22(2), 192–196. Retrieved from https://ojs.test.flvc.org/selbyana/article/view/121663


Orchid and bromeliad species richness and cover were examined in 14 plots at 100-m intervals at 200-1500 m elevation along a 1957 flow of aa lava (blocky lava with a high silica content) on Concepción volcano in Nicaragua. Seventeen orchid species and four bromeliad species were recorded, using a point intercept method. Orchid and bromeliad species richness peaked between 600 and 1000 m and accounted for 50% or more of the species encountered. Orchid and bromeliad cover were greatest at 600-800 m and accounted for more than 50% of the vegetation cover. In particular, Sobralia spp. and Vriesea pedicellata accounted for the majority of vegetation cover at 700 and 800 m. Orchid and bromeliad species richness and cover were positively correlated with percent lichen cover and negatively correlated with herbaceous plant height. High temperature and low precipitation regimes apparently limit orchid and bromeliad distributions at low elevations, and competition with taller plants may limit their distribution at high elevations. Canopy orchids and bromeliads may play a key role in primary succession on active volcanoes in the tropics.


Open Access and Copyright Notice


Selbyana is committed to real and immediate open access for academic work. All of Selbyana's articles and reviews are free to access immediately upon publication. There are no author charges (APCs) prior to publication, and no charges for readers to download articles and reviews for their own scholarly use.  To facilitate this, Selbyana depends on the financial backing of the Marie Selby Botanical Gardens, the hard work and dedication of its editorial team and advisory board, and the continuing support of its network of peer reviewers and partner institutions.

Authors are free to choose which open license they would like to use for their work. Our default license is the Creative Commons Attribution-NonCommercial 4.0 (CC BY-NC 4.0). While Selbyana’s articles can be copied by anyone for noncommercial purposes if proper credit is given, all materials are published under an open-access license with authors retaining full and permanent ownership of their work. The author grants Selbyana a perpetual, non-exclusive right to publish the work and to include it in other aggregations and indexes to achieve broader impact and visibility.

Authors are responsible for and required to ascertain that they are in possession of image rights for any and all photographs, illustrations, and figures included in their work or to obtain publication or reproduction rights from the rights holders. Contents of the journal will be registered with the Directory of Open Access Journals and similar repositories. Authors are encouraged to store their work elsewhere, for instance in institutional repositories or personal websites, including commercial sites such as academia.edu, to increase circulation (see The Effects of Open Access).