Relative contribution of reproductive attributes to the density-dependent effects on fruit-set

Abstract

The reproductive success of biotically pollinated plant species usually declines with population density. However, the contribution of the prevailing breeding system and pollination mechanism in a particular demographic set-up is also crucial to determine the success. We examined the relative contribution of these factors in a threatened tree species Anogeissus sericea var. nummularia. The study shows that besides the breeding system of the species, the extent of pollinator dependence and its foraging behaviour significantly contributes to the net outcome of density-dependent effects.

Flowering and fruiting phenology of Anaxagorea luzonensis A. Gray (Annonaceae)

“…The low fruit set can affect plant species' reproductive success. They are affected by the small population, weather activities, climate, pollination mechanism, the morphology of flowers, abundance, and pollinator behavior (Racsko et al 2007;Cao et al 2015;Singh et al 2018;Graves and Gimondo 2021;Zhang and Gao 2021).…”

Effects of floral display size, local open raceme density, patch size, and distance between patches on pollinator behaviour in Salvia nipponica

“…Previous studies have studied the effects of single factors or only a few factors on pollinator behaviour: population (not patch) sizes and average plant densities in the populations [31][32][33][34][35][36] , local plant density (density of flowering plants around a focal plant) 1,[6][7][8]12,13,23,[25][26][27][37][38][39][40][41][42][43][44][45] , or patch size 2,16,46 . Dauber et al 47 focused on both patch density and size, but the effects of distance between patches and display sizes of individual plants were not examined.…”