Realized niche shift associated with the Eurasian charophyte Nitellopsis obtusa becoming invasive in North America.

ABSTRACT: Nitellopsis obtusa (starry stonewort) is a dioecious green alga native to Europe and Asia that has emerged as an aquatic invasive species in North America. Nitellopsis obtusa is rare across large portions of its native range, but has spread rapidly in northern-tier lakes in the United States, where it can interfere with recreation and may displace native species. Little is known about the invasion ecology of N. obtusa, making it difficult to forecast future expansion. Using ecological niche modeling we investigated environmental variables associated with invasion risk. We used species records, climate data, and remotely sensed environmental variables to characterize the species' multidimensional distribution. We found that N. obtusa is exploiting novel ecological niche space in its introdu

SUBMITTER: Escobar LE 

PROVIDER: S-EPMC4929560 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature