Linkages among the functional traits, insect visitation rate and seed set of Gentiana taxa on the Tibetan Plateau
Linkages among the functional traits, insect visitation rate and seed set of Gentiana taxa on the Tibetan Plateau
复制标题
青藏高原龙胆类群功能性状、昆虫访视率与结籽率的关系
DOI：
10.1007/s11629-021-6749-8
复制
发表时间：
2022-07
影响因子：
2.5
通讯作者：
Junpeng Mu
中科院分区：
文献类型：
--
作者：
Weifei Dai;Rui Gao;Mengying He;Yulian Yang;Fanglan Li;Junpeng Mu
最大株高（Hmax），茎组织质量密度（SD），单位面积叶质量（LMA）和相对生长速率（RGR）都与开花物候有关。然而，这些随开花物候而变化的功能性状是否与其他与传粉者偏好和繁殖成功相关的花部性状相关，目前尚不清楚。本文研究了藏东草甸龙胆属植物的营养性状、花部性状、昆虫访花率和结实率之间的关系。结果表明，开花起始时间和开花偏移时间与Hmax、SD和LMA均呈正相关，而与RGR呈负相关。开花始期与花冠直径、花粉粒数呈正相关，与花数、花寿命呈负相关。昆虫访花率与开花时间、花粉粒数、花冠直径和结实率呈正相关，与花数和寿命呈负相关。早开花的物种具有较高的RGR，但较低的SD，LMA和Hmax，以及较小的花朵，较少的花粉粒，较长的花寿命，和较低的昆虫访问率比晚开花的植物物种。我们的研究结果表明，花性状与龙胆属植物的营养性状相关。这些植物性状关系与传粉者偏好和藏东草甸植物繁殖成功率有关。我们推测，这些性状的关系可能是适应在不可预测的，往往传粉者有限的环境中，在西藏高山草甸。
Maximum plant height (Hmax), stem tissue mass density (SD), leaf mass per area (LMA), and relative growth rate (RGR) have all been linked to flowering phenology. However, it is still unknown whether these functional traits varying with flowering phenology are related to other floral traits associated with pollinator preference and reproductive success. We investigated the relationship between vegetative and floral traits, as well as the rates of insect visitation .and seed set of five Gentiana species in eastern Tibetan meadows. Our results showed that flowering onset and flowering offset time were all found to be .positively correlated with the Hmax, SD, and LMA, but negatively correlated with the RGR. Flowering onset time was positively correlated with corolla diameter and pollen grain number, whereas was negatively correlated with flower number and flower longevity. The rates of insect visitation were positively related to flowering onset time, pollen grain number, corolla diameter, and seed set, but negatively related to flower number and longevity. Early flowering species have higher RGR but lower SD, LMA and Hmax, as well as smaller flowers, fewer pollen grains, longer flower longevity, and lower insect visitation rates than late-flowering plant species. Our findings indicate that floral traits are related to vegetative traits in Gentiana species. Also these plant trait relationships were associated with pollinator preference, and plant reproductive success of eastern Tibetan meadows. We speculate that these traits relationships are likely adaptive in unpredictable and often pollinator-limited environments in the Tibet alpine meadows.
登录
查看更多内容
影响因子：
3
作者：
R. Sargent;C. Goodwillie;S. Kalisz;R. Ree
通讯作者：
R. Sargent;C. Goodwillie;S. Kalisz;R. Ree
影响因子：
4.8
作者：
H. J. Young;M. Stanton
通讯作者：
H. J. Young;M. Stanton
影响因子：
3.3
作者：
Felicity Muth;Jacob S. Francis;Anne S. Leonard
通讯作者：
Felicity Muth;Jacob S. Francis;Anne S. Leonard
影响因子：
4.2
作者：
Amy L. Parachnowitsch;Jessamyn S. Manson;N. Sletvold
通讯作者：
Amy L. Parachnowitsch;Jessamyn S. Manson;N. Sletvold
DOI：
--
发表时间：
1971
期刊：
--
影响因子：
--
作者：
S. Yoshida;D. Forno;J. Cock
通讯作者：
S. Yoshida;D. Forno;J. Cock