Global ETD Search
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Showing 1 to 5 of 5 for “"elaiosome"”.
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Linking mechanism to pattern in community assembly: Ant-mediated seed dispersal in neotropical pioneer tree species
… a specialized lipid rich food reward called an elaiosome attached to their seeds. However, seeds that are not known to have this food reward may still be attractive to ants. The aim of my dissertation was to describe the movement of seeds of Neotropical pioneer tree species that are not known to …
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Consequences of interaction between the native ant community and an invasive plant (Euphorbia esula)
… established plants, (2) test if the lipid-rich elaiosome reward provided by E. esula to seed-dispersing ants has a positive influence on ant colony demography and reproduction, and (3) determine how ant visitation to E. esula nectar glands influences plant reproduction and herbivory. My research …
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Systematics and evolutionary ecology of Osteospermum section Polygalinae DC
… which is associated with the appearance of an elaiosome-like structure on the fruit, is found to have originated once, in O. corymbosum. The remaining species do not appear specifically adapted for dispersal, suggesting that they are passively dispersed. Field experiments confirm that …
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VARIATION BETWEEN PERIPHERAL AND CENTER ACHENE MORPHOLOGY AND ATTRIBUTES OF ACHENE GERMINATION IN THE INVASIVE SPECIES, <i>CENTAUREA MELITENSIS</i>
… fruit width, pappus length, pappus width, and elaiosome features. Temperature response patterns were evaluated by exposing peripheral and center achenes to temperatures ranging from 5 C to 30 C and measuring germination. Tendency of different achene types to remain in the flower heads was …
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Interactions between ants and diaspores of flowering plants (myrmecochory) in Sicily (Southern Italy): an important ecosystem function of the Mediterranean basin
Almeno 11.500 specie esistenti (e forse il doppio) di piante a fiore della divisione Angiospermae, stringono rapporti di mutualismo (obbligato o facoltativo) in habitat diversi su tutti i continenti ad eccezione dell Antartide, attraverso le loro diaspore sessuali (semi o frutti + appendici esterne …