Translator Disclaimer
1 January 2017 An Inverse Elevational Species Richness Gradient of Caucasian Vascular Plants and Encyrtidae (Hymenoptera, Chalcidoidea)
Author Affiliations +
Abstract

The elevational gradient in biodiversity, i.e. the decrease in species richness with increasing altitude, is well established in ecology. Here, we examined the respective gradient of parasitic hymenopterans (Encyrtidae) and plants in the Lagodekhi National Park (Country of Georgia) across an elevational gradient from 665 m to 2559 m a.s.l. by means of a year-round sampling of insects and a seasonal sampling of plants. Contrary to expectation, we found species richness of both taxa to peak at highest elevations. This unusual pattern was related to particular shifts in vegetation types, from relatively species-poor forests over rich grasslands towards poorer highland scrub vegetation. Our results call for a closer look at elevational gradients and highlights the need for including vegetation types in the assessment of altitudinal diversity gradients.

© 2017 Université Laval
Levan Mumladze, Werner Ulrich, Zezva Asanidze, and George Japoshvili "An Inverse Elevational Species Richness Gradient of Caucasian Vascular Plants and Encyrtidae (Hymenoptera, Chalcidoidea)," Ecoscience 24(1–2), (1 January 2017). https://doi.org/10.1080/11956860.2017.1324717
Received: 20 April 2017; Accepted: 26 April 2017; Published: 1 January 2017
JOURNAL ARTICLE
5 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top