D. Corenblit, B. Corbara, R. Cereghino, A. Dejean, P. Duran, V. Garófano-Gómez, F. Gilbert, E. González-Sargas, F. Julien, L. Lambs, C. Mainguin, L. Mazal, T. Otto, J. Steiger, E. Tabacchi, I. Till-Bottraud, Y. Travaillard
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引用次数: 0
摘要
白杨生长在砂砾石河床内的冲积坝上。冲积坝也为蚂蚁的繁殖提供了特别合适的栖息地。我们假设,蚂蚁通过改变河流栖息地的基质结构和资源可利用性,在杨树建立阶段对其生长产生积极影响。我们对在法国西南部加龙河采集的一种蚂蚁(Lasius niger L.)和六种不同基因型的杨树插条(Populus nigra L.)进行了为期九个月的初步迁地温室试验。三种主要治疗方法:‘P。黑色素','P。没有蚂蚁和蚂蚁食物的黑色素'和'P。应用“黑蚂蚁和蚂蚁食物”。在一个生长季节后,我们测试了茎、根和叶的分枝长度和生物量的差异。某些基因型在生长方面表现出显著差异,但三种处理之间在茎长、茎干重和根干重方面没有显著差异。杨树在第一个生长季节后的总生物量受到插条初始大小的积极影响,并受到独立于处理的基因型的调节。然而,根据不同处理的混合基因型的叶片干重和总生物量(即茎、根和叶的干重)的显著差异,观察到在没有蚂蚁和有蚂蚁食物的处理下杨树生长增加。我们讨论了我们的结果,目的是为未来的原位和非原位实验以及实地测量提供参考,以探索蚂蚁和杨树之间的相互作用,特别是在河岸生态系统中。
Effects of ants on riparian poplars: an ex situ experiment of biotic interaction
Poplars establish on alluvial bars within sand and gravel-bed rivers. Alluvial bars also provide particularly suitable habitats for the proliferation of ants. We hypothesized that ants, by modifying substrate structure and resource availability in fluvial habitats, positively influence poplar growth during its establishment stage. We conducted a preliminary nine-month ex situ greenhouse experiment with one ant species (Lasius niger L.) and six different genotypes of poplar cuttings (Populus nigra L.), both collected on the Garonne River, SW France. Three main treatments: ‘P. nigra alone’, ‘P. nigra without ants and with ant food’ and ‘P. nigra with ants and ant food’ were applied. After one growing season, we tested differences in branching length and biomass of stems, roots and leaves. Certain genotypes showed significant differences in growth, but there were no significant differences in stem length, dry mass of stems and roots between the three treatments. The total biomass of poplars after the first growing season was positively affected by the initial size of the cuttings and was modulated by the genotype independently from the treatments. However, an increased poplar growth for the treatment without ants and with ant food was observed according to significant differences in dry weight of leaves and total biomass (i.e. dry mass of stems, roots and leaves) for the pooled genotypes across treatments. We discuss our results with the aim of serving as a reference for future in situ and ex situ experiments and field measurements exploring interactions between ants and poplars, specifically in riparian ecosystems.
期刊介绍:
Arthropod-Plant Interactions is dedicated to publishing high quality original papers and reviews with a broad fundamental or applied focus on ecological, biological, and evolutionary aspects of the interactions between insects and other arthropods with plants. Coverage extends to all aspects of such interactions including chemical, biochemical, genetic, and molecular analysis, as well reporting on multitrophic studies, ecophysiology, and mutualism.
Arthropod-Plant Interactions encourages the submission of forum papers that challenge prevailing hypotheses. The journal encourages a diversity of opinion by presenting both invited and unsolicited review papers.