田园综合体的建设对农业增值、农村增绿和农民增收具有重要意义,是推动"三农"工作,实现乡村振兴的新模式、新业态和新路径。通过引入Heinrich Anton de Bary的互利共生理论,探讨其与田园综合建设的关系,并以此理论为指导,提...田园综合体的建设对农业增值、农村增绿和农民增收具有重要意义,是推动"三农"工作,实现乡村振兴的新模式、新业态和新路径。通过引入Heinrich Anton de Bary的互利共生理论,探讨其与田园综合建设的关系,并以此理论为指导,提出了田园综合体的建设策略,鼓励田园综合体各构成要素之间相互关联、协同发展,最终实现各方共赢和价值最大化。对于田园综合体建设具有理论和实践参考价值。展开更多
Host-mediated effects on hemiparasitic mistletoes were hypothesized to contribute to mistletoes reproductive phenological asynchrony,thus providing a longer period of food supply to its mutualistic pollinators and dis...Host-mediated effects on hemiparasitic mistletoes were hypothesized to contribute to mistletoes reproductive phenological asynchrony,thus providing a longer period of food supply to its mutualistic pollinators and dispersers.However,studies with empirical data interrogating this hypothesis are lacking.Weekly monitoring of flowering and fruiting patterns on a generalist mistletoe Dendrophthoe pentandra(Loranthaceae)was conducted for two consecutive years in tropical Xishuangbanna,Southwest China.We examined whether flowering and fruiting patterns were seasonal,quantified the degree of stagger within D.pentandra populations and determined the factors influencing the first flowering date(FFD)of D.pentandra.Furthermore,the effect of change in the number of host species on reproductive phenological asynchrony of mistletoe was examined.We found that(i)both flowering and fruiting exhibited unimodal peaks in the two consecutive years of the study;(ii)the FFD was significantly influenced by crown area of mistletoe and light,such that clump with larger crown and more light exposure had an earlier FFD and longer flowering and fruiting durations;(iii)different host species had a significant impact on the phenology of mistletoes.However,contrary to our hypothesis,the number of host species did not significantly change the asynchrony of reproductive phenology of mistletoe.Therefore,these results suggest that alternative hypotheses are needed to interpret the ecological significance of the number of host species and phenological asynchrony of generalist mistletoes.展开更多
文摘田园综合体的建设对农业增值、农村增绿和农民增收具有重要意义,是推动"三农"工作,实现乡村振兴的新模式、新业态和新路径。通过引入Heinrich Anton de Bary的互利共生理论,探讨其与田园综合建设的关系,并以此理论为指导,提出了田园综合体的建设策略,鼓励田园综合体各构成要素之间相互关联、协同发展,最终实现各方共赢和价值最大化。对于田园综合体建设具有理论和实践参考价值。
基金supported by the National Natural Science Foundation of China(31670393)to L.Z.
文摘Host-mediated effects on hemiparasitic mistletoes were hypothesized to contribute to mistletoes reproductive phenological asynchrony,thus providing a longer period of food supply to its mutualistic pollinators and dispersers.However,studies with empirical data interrogating this hypothesis are lacking.Weekly monitoring of flowering and fruiting patterns on a generalist mistletoe Dendrophthoe pentandra(Loranthaceae)was conducted for two consecutive years in tropical Xishuangbanna,Southwest China.We examined whether flowering and fruiting patterns were seasonal,quantified the degree of stagger within D.pentandra populations and determined the factors influencing the first flowering date(FFD)of D.pentandra.Furthermore,the effect of change in the number of host species on reproductive phenological asynchrony of mistletoe was examined.We found that(i)both flowering and fruiting exhibited unimodal peaks in the two consecutive years of the study;(ii)the FFD was significantly influenced by crown area of mistletoe and light,such that clump with larger crown and more light exposure had an earlier FFD and longer flowering and fruiting durations;(iii)different host species had a significant impact on the phenology of mistletoes.However,contrary to our hypothesis,the number of host species did not significantly change the asynchrony of reproductive phenology of mistletoe.Therefore,these results suggest that alternative hypotheses are needed to interpret the ecological significance of the number of host species and phenological asynchrony of generalist mistletoes.
