青藏高原东部大通翠雀花的花特征和繁殖分配的海拔差异

通过对青藏高原东部亚高寒草甸大通翠雀花的花特征和繁殖分配的研究发现:花展示大小、花展示面积、单花面积随海拔升高显著增大,繁殖投入和繁殖分配也随海拔升高而增大,说明高海拔区植物的确增强了自身对昆虫的吸引;不同海拔梯度下,个体大小与花展示大小、花展示面积均旱极显著正相关,与单花面积均旱显著正相关,海拔直接对花展示大小、花展示面积产生了影响,海拔和个体大小共同作用于单花面积;海拔直接对繁殖分配产生影响,个体大小与繁殖分配呈显著负相关,与繁殖投入呈非显著性正相关.研究表明海拔对植物的花特征和繁殖分配有着重要的影响.

Altitudinal differences in flower traits and reproductive allocation of Delphinium pylzowii(Ranunculdiceae)at east Qinhai Tibetan Plateau

It was tested whether plants of Delphinium pylzowii at higher altitude could increase their effort to attract pollinators to compensate for assumed pollinator scarcity at the eastern Qinhai Tibetan Plateau. Our results showed not only that floral display size,floral display area and single flower area all significantly increased with the increased altitude,but also that reproductive invest and reproductive allocation increased with the increased altitude,all of which meaning that plants at higher altitude e...