| 释义 |
myrmecochore, n. Bot.|ˈməːmɪkəˌkɔː(r)|
[ad. It. mirmecocore (Béguinot & Traversa 1905, in Nuovo Giornale Botanico Italiano 30 Nov. 547), f. as myrmeco-, *-chore.]
An oily seed that is dispersed by ants; also, a plant with such seeds.
1928C. K. Ogden tr. A. Forel Social World of Ants I. ii. iii. 257 Sernander has given the name myrmecochores (favourite food of ants) to certain seeds with oily appendages which serve to attract ants towards them or towards their fruit, and thus to secure transportation by these insects. 1972Amer. Jrnl. Bot. LIX. 118/1 The Vancouveria species also belong to the most common type of myrmecochore, the Viola odorata-type..which is characterized by appendaged seeds. 1988Amer. Midland Naturalist CXIX. 434 Beattie (1983) questions the efficacy of large mound-building ants, such as Formica spp., as dispersal agents of myrmecochores because their nests are relatively permanent and deeply excavated, and they may be less capable than some ants he has studied in moving the seed to the nests.
So ˌmyrmecoˈchorous a., designating or characterized by a myrmecochore; ˌmyrmecoˈchory n., the dispersal of plant seeds by ants.
1916B. D. Jackson Gloss. Bot. Terms (ed. 3) 245/1 Myrmecochorous, dispersed by means of ants. Ibid., Myrmecochory. 1928C. K. Ogden tr. A. Forel Social World of Ants I. ii. iii. 257 It is chiefly plants and bushes growing in the shade of the forest and hence deprived of transport by wind or birds which have need of myrmecochorous seeds, so as to be sown and spread abroad by ants. Ibid. 258 He mixed seeds of an indifferent character with ten others belonging to a plant suspected of myrmecochory, and placed them on an ant-track; he then noticed the time the ants took to transport the second kind, while they entirely ignored the first. 1983Jrnl. Ecol. LXXI. 413 The seeds have no dispersal mechanism once they leave the parent and are not myrmecochorous. 1988Amer. Midland Naturalist CXIX. 434 Myrmecochory of leaf spurge seed may aid the observed spread..and persistence of the plant by integrating the seeds more fully into the invaded habitats. |