Co-flowering richness has variable effects on pollen quantity and quality limitation in four Clarkia species

Annals of Botany, Journal Year: 2024, Volume and Issue: 134(5), P. 901 - 918

Published: Aug. 12, 2024

Abstract Background and Aims Pollination failure occurs from insufficient pollen quantity or quality. However, the relative contributions of vs. quality to overall limitation, how this is affected by co-flowering context, remain unknown for most plant populations. Here, we studied patterns deposition tube formation across populations four predominately outcrossing species in genus Clarkia evaluate richness congeners affects contribution limitation. Methods We partition variation production individuals, identify main sources components reproductive success. further quantify limitation success using piecewise regression analyses. Finally, number community strength Results Across all contexts, proportion tubes produced varied greatly among species, these were not always correlated. For instance, C. xantiana received smallest loads yet highest tubes, while speciosa exhibited opposite pattern. Yet, had variable effects on Specifically, breakpoint values, which are an indicator two-fold higher four-species compared with one- two-species communities two suggesting that can increase increasing congeners. Conclusions Our results reveal a complex interplay between context may have different evolutionary outcomes

Language: Английский

Mass flowering and flowering asynchrony characterise a seasonal herbaceous community in the Western Ghats

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

ABSTRACT Seasonally flowering communities often exhibit higher synchrony than what can be attributed to environmental factors alone. Flowering either increase competition for pollinators or improve pollination through facilitation. Consequently, analysing a community’s patterns help identify its ecological constraints. In this study, we characterised the phenology of seasonal, herbaceous community (Kaas plateau) in Western Ghats, India, known endemic flora and mass displays. Over three years, addressed following questions: (a) Is seasonality shaped by factors? (b) there evidence within community? (c) Are plant-pollinator interactions specialised? Our results show that was long dry seasons subsequent rainfall patterns. Based on floral abundance, categorised into non-mass species. To incorporate abundance defining synchrony, introduced two novel indices, which identified community-wide asynchrony, despite having Finally, networks native bees as dominant prominence generalised interactions. We also noted sub-seasonal temporal shifts matched abundances community. This is first study exhaustively characterise plants from laterite plateau Ghats. seasonality, both asynchrony emerged characteristics habitat. suggest probably drives these seasonal communities, rather

Language: Английский

Unveiling the association of mangrove flowering phenology on the dynamics of insect abundance

Acta Oecologica, Journal Year: 2024, Volume and Issue: 126, P. 104052 - 104052

Published: Dec. 14, 2024

Language: Английский