منابع مشابه
Automatic Recognition of Wild Flowers
In this paper we propose an automatic recognition system for wild flowers. Two photos, one of the flower and one of the leaves taken from directly above or at a close angle of a single wild flower, were used as a single set. The objective (flower, leaf) is extracted from each image using a clustering method, then recognition is performed using a piecewise linear discriminant function after find...
متن کاملStranger to Familiar: Wild Strepsirhines Manage Xenophobia by Playing
The power of play in limiting xenophobia is a well-known phenomenon in humans. Yet, the evidence in social animals remains meager. Here, we aim to determine whether play promotes social tolerance toward strangers in one of the most basal group of primates, the strepsirhines. We observed two groups of wild lemurs (Propithecus verreauxi, Verreaux's sifaka) during the mating season. Data were also...
متن کاملContrasting responses of bumble bees to feeding conspecifics on their familiar and unfamiliar flowers.
Animals exploiting their familiar food items often avoid spatio-temporal aggregation with others by avoiding scents, less rewarding areas or visual contacts, thereby minimizing competition or interference when resources are replenished slowly in patches. When animals are searching or assessing available food sources, however, they may benefit from reducing sampling costs by following others at ...
متن کاملChemical composition of two samples of Humulus lupulus flowers (vernalized and wild hops)
Background and objectives: Humulus lupulus, a plant belonging to the family Cannabaceae, is used as a medicinal plant with therapeutic applications in different nations. In this study, two samples of H. lupulus (vernalized and wild hops) were selected for further analysis about differences of their essential oils. Methods: The essential oils f...
متن کاملMultiple species of wild tree peonies gave rise to the ‘king of flowers’, Paeonia suffruticosa Andrews
The origin of cultivated tree peonies, known as the 'king of flowers' in China for more than 1000 years, has attracted considerable interest, but remained unsolved. Here, we conducted phylogenetic analyses of explicitly sampled traditional cultivars of tree peonies and all wild species from the shrubby section Moutan of the genus Paeonia based on sequences of 14 fast-evolved chloroplast regions...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1956
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay1931