منابع مشابه
Fig . 3 : The Two - Layer
Facial expressions play an important role in interpersonal relations as well as for security purposes. The malicious intensions of a thief can be recognized with the help of his gestures, facial expressions being its major part. This is because humans demonstrate and convey a lot of evident information visually rather than verbally. Although humans recognize facial expressions virtually without...
متن کاملAncient fig wasps indicate at least 34 Myr of stasis in their mutualism with fig trees.
Fig wasps and fig trees are mutually dependent, with each of the 800 or so species of fig trees (Ficus, Moraceae) typically pollinated by a single species of fig wasp (Hymenoptera: Agaonidae). Molecular evidence suggests that the relationship existed over 65 Ma, during the Cretaceous. Here, we record the discovery of the oldest known fossil fig wasps, from England, dated at 34 Ma. They possess ...
متن کاملRiparian Ficus Tree Communities: The Distribution and Abundance of Riparian Fig Trees in Northern Thailand
Fig trees (Ficus) are often ecologically significant keystone species because they sustain populations of the many seed-dispersing animals that feed on their fruits. They are prominent components of riparian zones where they may also contribute to bank stability as well as supporting associated animals. The diversity and distributions of riparian fig trees in deciduous and evergreen forests in ...
متن کاملThe fig issue
Figs are remarkable not only for their unusual fruits, quite distinct from any other, but also for their relationship with a group of wasps in which different species pollinate different fig species. The relationship is symbiotic, as the figs are pollinated by the wasps but the insects lay their eggs in some of the flowers that form a food source for the larvae. Tucson, describe the association...
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ژورنال
عنوان ژورنال: The Expository Times
سال: 1897
ISSN: 0014-5246,1745-5308
DOI: 10.1177/001452469700801106