The effect of site conditions and type of ramet clusters on sexual and asexual ramets of Solidago × niederederi (Asteraceae)

IF 3.8 2区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION Neobiota Pub Date : 2023-06-15 DOI:10.3897/neobiota.85.98796
A. Pliszko, K. Kostrakiewicz-Gierałt, I. Makuch-Pietraś
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Abstract

Spontaneous hybrids between alien and native plant species are alien taxa and they threaten native biodiversity due to their high competitive ability or introgression. Thus, we tested the effect of soil conditions, elevation and type of ramet clusters (clonal clumps of shoots) on sexual and asexual ramets of Solidago × niederederi, a hybrid between the invasive alien S. canadensis and the native S. virgaurea. We also tested the relationships between the size of sexual ramets and habitat conditions in the hybrid and its parental species, based on ten sites in NE and S Poland, respectively. The hybrid and its parental species occurred on mineral soils with a wide range of textures (sand, loamy sand, sandy loam, silty loam and loam) and pH (from strongly acidic to slightly alkaline). Sexual ramet clusters dominated in S. × niederederi populations, while the total number of ramets was highest in mixed ramet clusters. The cluster × site interaction had a significant effect on the length and biomass of sexual ramets in hybrid populations. Moreover, we found a significant effect of the taxon × site interaction in the case of biomass of sexual ramets and synflorescences (capitula arranged in panicles). Based on the biomass of sexual shoots and synflorescences, the competitive abilities of the hybrid may be more or less similar to S. canadensis or S. virgaurea albeit depending on site conditions.
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The立地条件和分株类型对菊科一枝黄花有性和无性分株的影响
外来植物和本地植物物种之间的自发杂交种是外来类群,由于其高竞争能力或渗入性,它们威胁着本地生物多样性。因此,我们测试了土壤条件、海拔和分株簇(芽的克隆丛)类型对Solidago×niedereri有性和无性分株的影响,Solidago是外来入侵S.canadensis和本地S.virgaurea的杂交种。我们还分别在波兰东北部和南部的10个地点测试了杂交种及其亲本物种的性分株大小与栖息地条件之间的关系。杂交种及其亲本出现在质地广泛(沙子、壤土、沙壤土、粉质壤土和壤土)、pH值(从强酸到微碱性)的矿物土壤上。有性分株群在S.×niedereri群体中占主导地位,而混合分株群的分株总数最高。聚类×位点相互作用对杂交群体性分株的长度和生物量有显著影响。此外,我们还发现,在性分株和绒毛膜(头状花序排列在圆锥花序中)的生物量的情况下,分类单元×位点的相互作用具有显著影响。根据性芽和绒毛膜的生物量,杂交种的竞争能力可能或多或少与加拿大S.canadensis或S.virgaurea相似,尽管这取决于场地条件。
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来源期刊
Neobiota
Neobiota Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
8.10
自引率
7.80%
发文量
0
审稿时长
6 weeks
期刊介绍: NeoBiota is a peer-reviewed, open-access, rapid online journal launched to accelerate research on alien species and biological invasions: aquatic and terrestrial, animals, plants, fungi and micro-organisms. The journal NeoBiota is a continuation of the former NEOBIOTA publication series; for volumes 1-8 see http://www.oekosys.tu-berlin.de/menue/neobiota All articles are published immediately upon editorial approval. All published papers can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.
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