Flower Density Is More Important Than Habitat Type for Increasing Flower Visiting Insect Diversity
نویسندگان
چکیده
منابع مشابه
Eocene fossil is earliest evidence of flower-visiting by birds.
Birds are important pollinators, but the evolutionary history of ornithophily (bird pollination) is poorly known. Here, we report a skeleton of the avian taxon Pumiliornis from the middle Eocene of Messel in Germany with preserved stomach contents containing numerous pollen grains of an eudicotyledonous angiosperm. The skeletal morphology of Pumiliornis is in agreement with this bird having bee...
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Background VEGF gene has been reported to be related with many diseases and recurrent pregnancy loss in various studies. VEGF polymorphisms are risk factors for pregnancy losses, and generally studies report only women’s genetic analyses. To evaluate the association between VEGF A C405G, C460T, C936T and C2578A polymorphisms and spontaneous abortion, we studied the genotypes of spontaneously a...
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Estimates suggest that perhaps 40% of all invertebrate species are found in tropical rainforest canopies. Extrapolations of total diversity and food web analyses have been based almost exclusively on species inhabiting the foliage, under the assumption that foliage samples are representative of the entire canopy. We examined the validity of this assumption by comparing the density of invertebra...
متن کاملThe Arabidopsis FILAMENTOUS FLOWER gene is required for flower formation.
A screen for mutations affecting flower formation was carried out and several filamentous flower (fil) alleles were identified. In fil mutants, floral primordia occasionally give rise to pedicels lacking flowers at their ends. This defect is dramatically enhanced in fil rev double mutants, in which every floral primordium produces a flowerless pedicel. These data suggest that the FIL and REV ge...
متن کاملSpectral organization of ommatidia in flower-visiting insects.
This article reviews recent advances of studies on the spectral organization of the compound eye in lepidopteran and hymenopteran insects. The compound eyes consist of ommatidia, which contain a set of photoreceptor cells. The common feature is that the ommatidia can be divided into three types, according to the combination of spectral classes of photoreceptors. Honeybees and nymphalid butterfl...
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ژورنال
عنوان ژورنال: International Journal of Ecology
سال: 2013
ISSN: 1687-9708,1687-9716
DOI: 10.1155/2013/237457