The evolution of rewards: seed dispersal, seed size and elaiosome size
نویسندگان
چکیده
منابع مشابه
SEED DISPERSAL BY RED-RUFFED LEMURS: SEED SIzE, VIABILITY, AND BENEFICIAL EFFECT ON SEEDLING GROwTH
Frugivorous vertebrates play a critical role as seed dispersers of many tropical fruiting plants. In Madagascar, lemurs are the principal dispersers of fruit-bearing plants. This study aims to highlight the potential ecological role of the redruffed lemur (Varecia rubra) in the regeneration of a degraded forest, based on the quantity and size of passed seeds, their viability and germination, an...
متن کاملFruit size in wild olives: implications for avian seed dispersal
Frugivorous birds in the Mediterranean basin may disperse seeds using two different feeding behaviours: swallowing the fruit whole or pecking pieces of pulp. Swallowing is the common behaviour of frugivorous seed dispersers in the Mediterranean basin (Herrera 1984a) and most of the fleshy-fruited plants in the region rely on this bird feeding behaviour to disperse their seeds (Herrera 1984b, 19...
متن کاملThe scaling of seed size
1. Rees & Venable (2007; Journal of Ecology , 95 , 926–936) critically evaluated ideas of Moles et al. to explain the cross-species positive correlation between offspring size and adult size, arguing that they had misinterpreted the theoretical literature, and used cross-species patterns to constrain the evolution of life-histories. 2. In a reply to Rees & Venable, Westoby et al. (2009; Journal...
متن کاملPost-dispersal seed predation in relation to selection on seed size in Dithyrea californica
Question: We asked whether a desert ant population and a community of heteromyid rodents select Dithyrea californica seeds in relation to their size, frequency of seed sizes, and absolute density and thus have the capacity to influence natural selection on seed size. Hypothesis: Following the predictions of optimal diet theory, we hypothesized that seed predators will prefer to prey upon larger...
متن کاملCorrelated evolution of genome size and seed mass.
Previous investigators have identified strong positive relationships between genome size and seed mass within species, and across species from the same genus and family. Here, we make the first broad-scale quantification of this relationship, using data for 1222 species, from 139 families and 48 orders. We analyzed the relationship between genome size and seed mass using a statistical framework...
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ژورنال
عنوان ژورنال: Journal of Ecology
سال: 2006
ISSN: 0022-0477,1365-2745
DOI: 10.1111/j.1365-2745.2006.01116.x