THE EFFECT OF SOME MEDITERRANEAN SCRUBLAND FRUGIVORES UPON GERMINATION PATTERNS

作者: I. Izhaki , U. N. Safriel

DOI: 10.2307/2261036

关键词:

摘要: SUMMARY (1) The probabilty of germination, the length seed dormancy, and temporal pattern germination five bird-dispersed plant species an eastern Mediterranean scrubland community varied depending on species, which seven bird they were experimentally fed to, whether or not remained covered by pulp, pulp was removed before sowing. (2) It is proposed that, in order to withstand passage through gut, seeds are protected a way that may delay their after defecation alter inherent amount wear go while gut. experimental results suggest frugivory modifies this dormancy so evenness seedling emergence over time increases as more dispersers, each treats its gut differently, ingest fruit. This help spread risks encountered during adaptation relatively mesic environment with unpredictable rain pattern. (3) Rhamnus palaestinus encased sheath unique features. fully protects disperser, shed immediately defecation. Thus protection does out yet impaired remains totally independent characteristics various dispersers.

参考文章(32)
E. H. Roberts, Dormancy: a Factor Affecting Seed Survival in the Soil Viability of Seeds. pp. 321- 359 ,(1972) , 10.1007/978-94-009-5685-8_11
Daniel H. Janzen, Dispersal of Small Seeds by Big Herbivores: Foliage is the Fruit The American Naturalist. ,vol. 123, pp. 338- 353 ,(1984) , 10.1086/284208
Michael G. Salomonson, Adaptations for animal dispersal of one-seed juniper seeds. Oecologia. ,vol. 32, pp. 333- 339 ,(1978) , 10.1007/BF00345111
Roy W. McDiarmid, Robert E. Ricklefs, Mercedes S. Foster, Dispersal of Stemmadenia donnell-smithii (Apocynaceae) by Birds Biotropica. ,vol. 9, pp. 9- ,(1977) , 10.2307/2387855
Nancy C. Garwood, Seed Germination in a Seasonal Tropical Forest in Panama: A Community Study Ecological Monographs. ,vol. 53, pp. 159- 181 ,(1983) , 10.2307/1942493
H. BRUNNER, R. V. HARRIS, R. L. AMOR, A note on the dispersal of seeds of blackberry (Rubus procerus P.J. Muell.) by foxes and emus Weed Research. ,vol. 16, pp. 171- 173 ,(1976) , 10.1111/J.1365-3180.1976.TB00398.X