%0 Journal Article
%T Sexual and Breeding Systems in a Xerophytic Shrubland
%A Nelson Ram¨ªrez
%J Open Journal of Ecology
%P 434-482
%@ 2162-1993
%D 2022
%I Scientific Research Publishing
%R 10.4236/oje.2022.127025
%X Reproductive systems are fundamental attributes for understanding life cycle and regeneration processes and provide information about seed production and genetic diversity. Analyses of reproductive strategies within communities and their associations with functional groups can indicate how physical and biological characteristics may influence the reproductive ecology of such communities. The main goal was to determine if the reproductive systems and their associated functional groups have particular characteristics related to extreme conditions and disturbance within xerophytic shrubland. Floral morphology analysis and four experimental tests were conducted to determine the reproductive systems of species and their associations with the life form, succulence, carbon metabolism, dispersal syndrome, pollination, and disturbance. Of the 144 plant species studied, 72.9% were hermaphrodite, 22.9% were monoecious, and 4.2% were dioecious. Dioecy was associated with woodiness, frugivory and undisturbed areas, while monoecy was more common in herbs. Adichogamy, protandry and herkogamy were more frequent than dichogamy, protogyny and no herkogamy, respectively. Xenogamous species tend to be woody and grow in undisturbed areas, while partially xenogamous species were mainly herbs occurring in disturbed areas. The majority of species were partially self-incompatible. High levels of outbreeding strategies tended to occur mainly in woody K-strategy species from undisturbed areas, mixed breeding strategies occurred in disturbed areas and overall community, and inbreeding strategies were associated with mostly herbaceous r-strategy primarily in disturbed areas.
%K Dichogamy
%K Dispersal Syndrome
%K Disturbed Habitat
%K Herkogamy
%K Life Form
%K Pollination System Specificity
%K Reproductive System
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=118591