학술논문
New records and range expansion for Paspalum procurrens and P. volcanense in northwestern Argentina and southeastern Bolivia
Document Type
Academic Journal
Author
Source
Check List. Nov-Dec, 2019, Vol. 15 Issue 6, p1137, 8 p.
Subject
Language
English
Abstract
Introduction Worldwide, human activities cause major changes in biological communities which threaten biodiversity, ecosystem function, and human well-being (Diaz et al. 2006). The main threats facing biodiversity are related to [...]
Paspalum procurrens Quarin and P. volcanense Zuloaga, Morrone & Denham are two rare species of South American grasses inhabiting geographically restricted areas which are exposed to ecological degradation due to landscape transformation and biodiversity losses. We present new records for these species, from the provinces of Jujuy, Salta, Tucuman and Catamarca (Argentina) and departments of Tarija, Chuquisaca, and Santa Cruz (Bolivia). New geographic distribution maps and the biological relevance of these findings are discussed pinpointing the need for imperative and assiduous botanical explorations in biodiversity hotspots sensible to the impact of human activities. Ploidy levels in these two species are studied. Keywords Anachyris, biodiversity, grasses, rare species, South America, polyploidy.
Paspalum procurrens Quarin and P. volcanense Zuloaga, Morrone & Denham are two rare species of South American grasses inhabiting geographically restricted areas which are exposed to ecological degradation due to landscape transformation and biodiversity losses. We present new records for these species, from the provinces of Jujuy, Salta, Tucuman and Catamarca (Argentina) and departments of Tarija, Chuquisaca, and Santa Cruz (Bolivia). New geographic distribution maps and the biological relevance of these findings are discussed pinpointing the need for imperative and assiduous botanical explorations in biodiversity hotspots sensible to the impact of human activities. Ploidy levels in these two species are studied. Keywords Anachyris, biodiversity, grasses, rare species, South America, polyploidy.