0510449 - BÚ 2020 RIV GB eng J - Journal Article
Čertner, Martin - Kúr, P. - Kolář, Filip - Suda, Jan
Climatic conditions and human activities shape diploid–tetraploid coexistence at different spatial scales in the common weed Tripleurospermum inodorum (Asteraceae).
Journal of Biogeography. Roč. 46, č. 7 (2019), s. 1355-1366. ISSN 0305-0270. E-ISSN 1365-2699
Institutional support: RVO:67985939
Keywords : cytotype coexistence * habitat preferences * ecological niche modelling
OECD category: Plant sciences, botany
Impact factor: 3.723, year: 2019
Method of publishing: Limited access

While environmental conditions are reported as important determinants of cytotype distribution patterns in some mixed‐ploidy plant species, in others they seem to play no role. One reason for such inconsistency might be how and at what spatial scale the ecology of different cytotypes is compared. To address this issue, we selected a single plant species and adopted several complementary approaches to assess ecological requirements of cytotypes across wide‐range of spatial scales that included locally-sampled vegetation data and climatic niche modelling. In the model species, Tripleurospermum inodorum, climate is an important driver of cytotype distribution patterns at continental scale, however, at finer scales within the contact zone, the founder effect and non‐random migration patterns caused by human activities seem to be more important than environmental heterogeneity. Cytotype distribution patterns thus may be shaped by multiple environmental forces, each operating at a different spatial scale. We also point out that the use of independent replicates and/or across‐scale comparisons can significantly improve the performance of ecological niche assessments.
Permanent Link: http://hdl.handle.net/11104/0302720