Humans have been fascinated by bees for centuries. Bees display a wide spectrum of behaviours and ecological roles that have provided biologists with a vast amount of material for study. Among the types observed are both social and solitary bees, those that either pollinate or destroy flowers, and those that display traits allowing them to survive underwater. Others fly mainly at night, and some build their nests either in the ground or in the tallest rain forest trees. This highly acclaimed book summarises and interprets research from around the world on tropical bee diversity and draws together major themes in ecology, natural history and evolution. The numerous photographs and line illustrations, and the large reference section, qualify this book as a field guide and reference for workers in tropical and temperate research. The fascinating ecology and natural history of these bees will also provide absorbing reading for other ecologists and naturalists. This book was first published in 1989.
Most eukaryotic organisms are arthropods. Yet, their diversity in rich terrestrial ecosystems is still unknown. Here we produce tangible estimates of the total species richness of arthropods in a tropical rainforest. Using a comprehensive range of structured protocols, we sampled the phylogenetic breadth of arthropod taxa from the soil to the forest canopy in the San Lorenzo forest, Panama. We collected 6144 arthropod species from 0.48 hectare and extrapolated total species richness to larger areas on the basis of competing models. The whole 6000-hectare forest reserve most likely sustains 25,000 arthropod species. Notably, just 1 hectare of rainforest yields >60% of the arthropod biodiversity held in the wider landscape. Models based on plant diversity fitted the accumulated species richness of both herbivore and nonherbivore taxa exceptionally well. This lends credence to global estimates of arthropod biodiversity developed from plant models.M ost eukaryote species are terrestrial arthropods (1), and most terrestrial arthropods occur in tropical rainforests (2). However, considerably greater sampling effort is required in tropical arthropod surveys to yield realistic estimates of global species richness (3-7). A basic hindrance to estimating global biodiversity lies in a lack of empirical data that establish local biodiversity, which can be scaled up to achieve a global estimate.Although many studies reported species richness for selected groups of well-studied insect taxa, no satisfactory estimate of total arthropod species richness exists for a single tropical rainforest location to date.The unstructured collection and small-scale survey of tropical arthropods cannot yield convincing estimates of total species richness at a specific forest (7-9). Most studies either target few arthropod orders or trophic guilds, or use a limited array of sampling methods, or ignore the diverse upper canopy regions of tropical forests (10-15). Moreover, sampling protocols have rarely been structured in such a way that, with increased sampling, incomplete data on local diversity (7) can be extrapolated to estimate total species richness across multiple spatial scales (16). Where such structured estimates are made, it is invariably for insect herbivores on their host plants (5). However, species accumulation rates may differ markedly for nonherbivore guilds, which include more than half of all described arthropod species (1, 17). As the degree of host specificity (effective specialization) of other guilds can be much lower than that of insect herbivores, or may be driven by different factors (18,19), global estimates based on herbivores alone are questionable. Consequently, extensive cross-taxon surveys with structured protocols at reference sites may be the only effective approach toward estimating total arthropod species richness in tropical forests (3).To provide a comprehensive estimate of total arthropod species richness in a tropical rainforest, we established a collaboration involving 102 researchers with expertise encom...
We acknowledge grants from the Smithsonian Institution Scholarly Studies Program and the Walcott Botanical Endowment to DWR, and from the Exxon Fellowship program. We are indebted to Robert Schmalzel for field collection and preparation of herbarium material, as well as for descriptions; and T. M. Aide and A. Herre in Panama. For extensive collaboration in herbarium work and slide Preparation, in addition to providing slide material appreciatio n for the aid that the late G. Thanikaimo ni, French Institute, Pondichéry, provided in the form of reference material. W. D'Arcy and P. Raven, Missouri Botanical Garden, were instrument al inWe also thank M. Correa, University of Panama herbarium, S.
-Stingless bees diverged since the Cretaceous, have 50 times more species than Apis, and are both distinctive and diverse. Nesting is capitulated by 30 variables but most do not define clades. Both architectural features and behavior decrease vulnerability, and large genera vary in nest habit, architecture and defense. Natural stingless bee colony density is 15 to 1500 km −2 . Symbionts include mycophagic mites, collembolans, leiodid beetles, mutualist coccids, molds, and ricinuleid arachnids. Mutualist bacteria and fungi preserve food and brood provisions. Nest associates include trees, termite, wasp and ant colonies. Ventilation is the means of nest environment regulation, achieved by fanning worker bees. Permanence of stingless bee nests, with annual mortality ca. 13%, implies a colony has 23 years to reproduce. Inability to freely swarm and single mating may all increase nesting specificity, competition, symbiosis and cleptobiosis in communities, while disease is rare.Meliponini / Apidae / nest architecture / nest microclimate / evolutionary ecology
Stingless bees are social bees that live in tropical and subtropical areas of the world. All species produce honey, which has been appreciated by humans since ancient times. Here, the general panorama of meliponiculture is presented. Deforestation and poor management are the main problems faced by this incipient industry. For a profitable meliponiculture, much more biological information is needed, as well as field studies in natural conditions. In the near future, we suggest that the successful use of these pollinators will promote the development of new breeding techniques and commercialization possibilities, which must be designed to be sustainable.
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