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Systropha Curvicornis
The genus ''Systropha'' comprises several species of Old World sweat bees, primarily specialist pollinators of plants in the genus '' Convolvulus''. Males of the genus have unusual curled antennae, and females have pollen-carrying hairs covering almost the entire abdomen. Michener, C.D. (2000). ''The Bees of the World''. Johns Hopkins University Press Distribution ''Systropha'' species occur from Spain and Morocco east to Tajikistan, and north as far as southern Germany. They occur in both eastern and western parts of Africa, south to Namibia. Asian species range as far south as Sri Lanka and Thailand. Life history So far as is known, all species are oligolectic on flowers of '' Convolvulus'', with unusual modifications of the scopa, such that almost the entire abdomen (including the dorsal surface) is used for carrying pollen, rather than the legs, as in most bees. Pollen is carried to nests in the ground, formed into pollen masses, on each of which a single egg is laid before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, Scramble for Africa, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systropha Diacantha
The genus ''Systropha'' comprises several species of Old World sweat bees, primarily specialist pollinators of plants in the genus '' Convolvulus''. Males of the genus have unusual curled antennae, and females have pollen-carrying hairs covering almost the entire abdomen. Michener, C.D. (2000). ''The Bees of the World''. Johns Hopkins University Press Distribution ''Systropha'' species occur from Spain and Morocco east to Tajikistan, and north as far as southern Germany. They occur in both eastern and western parts of Africa, south to Namibia. Asian species range as far south as Sri Lanka and Thailand. Life history So far as is known, all species are oligolectic on flowers of '' Convolvulus'', with unusual modifications of the scopa, such that almost the entire abdomen (including the dorsal surface) is used for carrying pollen, rather than the legs, as in most bees. Pollen is carried to nests in the ground, formed into pollen masses, on each of which a single egg is laid before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalogue Of Life
The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic Information System. The Catalogue is used by research scientists, citizen scientists, educators, and policy makers. The Catalogue is also used by the Biodiversity Heritage Library, the Barcode of Life Data System, Encyclopedia of Life, and the Global Biodiversity Information Facility. The Catalogue currently compiles data fro165 peer-reviewed taxonomic databasesthat are maintained by specialist institutions around the world. , the COL Checklist lists 2,067,951 of the world's 2.2m extant species known to taxonomists on the planet at present time. Structure The Catalogue of Life employs a simple data structure to provide information on synonymy, grouping within a taxonomic hierarchy, common names, distribution and ecological environment. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopa (biology)
A scopa (plural scopae; Latin for "broom") is any of a number of different modifications on the body of a non-parasitic bee that form a pollen-carrying apparatus. In most species of bees, the scopa is simply a dense mass of elongated, often branched, hairs (or setae) on the hind leg. When present on the hind legs, the modified hairs are, at a minimum, on the tibia, but some bees also have modified hairs on the femur and/or trochanter. A few bees have, in addition to the leg hairs, many modified hairs on the ventral surface of the abdomen which are also used in pollen transport; one family of bees, the Megachilidae, lack modified leg hairs, but have an extensive scopa on the underside of the abdomen (see photo). Honey bees and bumblebees have a more highly-developed structure than the scopa: the corbicula, or pollen basket. Various species of bees have other types of modified hairs that collect pollen, floral oils, or other chemicals from plants; such hairs may be borne on the fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligolecty
The term oligolecty is used in pollination ecology to refer to bees that exhibit a narrow, specialized preference for pollen sources, typically to a single family or genus of flowering plants. The preference may occasionally extend broadly to multiple genera within a single plant family, or be as narrow as a single plant species. When the choice is very narrow, the term ''monolecty'' is sometimes used, originally meaning a single plant species but recently broadened to include examples where the host plants are related members of a single genus. The opposite term is '' polylectic'' and refers to species that collect pollen from a wide range of species. The most familiar example of a polylectic species is the domestic honey bee. Oligolectic pollinators are often called oligoleges or simply specialist pollinators, and this behavior is especially common in the bee families Andrenidae and Halictidae, though there are thousands of species in hundreds of genera, in essentially all known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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