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Herbert G. Baker
Herbert George Baker (February 23, 1920 – July 2, 2001) was a British-American botanist and evolutionary ecologist who was an authority on pollination biology and breeding systems of angiosperms. He described what became known as "Baker's rule," a theoretical proposal underpinning an empirical observation that the ability to self-fertilize improves colonization ability among plants by increasing the probability of successful establishment after long-distance dispersal. He collaborated with his wife, Irene Baker, studying the content and function of nectar, and undertaking research and publishing papers on its evolutionary and taxonomic significance. Early life and education Baker was born on February 23, 1920, in Brighton, England. He received his B.Sc. (1941) and Ph.D. (1945) from the University of London. He married a fellow biologist Irene Baker the same year. Career He was appointed lecturer from 1945 to 1954 and senior lecturer from 1954 to 1957 at the University o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brighton
Brighton () is a seaside resort and one of the two main areas of the City of Brighton and Hove in the county of East Sussex, England. It is located south of London. Archaeological evidence of settlement in the area dates back to the Bronze Age, Roman and Anglo-Saxon periods. The ancient settlement of "Brighthelmstone" was documented in the ''Domesday Book'' (1086). The town's importance grew in the Middle Ages as the Old Town developed, but it languished in the early modern period, affected by foreign attacks, storms, a suffering economy and a declining population. Brighton began to attract more visitors following improved road transport to London and becoming a boarding point for boats travelling to France. The town also developed in popularity as a health resort for sea bathing as a purported cure for illnesses. In the Georgian era, Brighton developed as a highly fashionable seaside resort, encouraged by the patronage of the Prince Regent, later King George IV, who spent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organization For Tropical Studies
The Organization for Tropical Studies (OTS), founded in 1963, is a non-profit consortium of over 50 universities and research institutions based in the United States, Latin America, and South Africa. OTS manages a network of ecological research stations in Costa Rica and South Africa. The North American Office is located on the Duke University campus in Durham, North Carolina. OTS offers a variety of courses in Spanish and English for high school, university, and graduate students. Most of the coursework and research conducted at OTS stations focuses on tropical ecology, and the three research stations in Costa Rica are located in distinct ecoregions. Along with Cocha Cashu Biological Station and the Manu Learning Centre in Peru, and the Smithsonian Tropical Research Institute on Barro Colorado Island in Panama, the OTS research stations in general (and La Selva in particular) provide some of the most important and productive sites of original research on neotropical ecology. OT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irene Baker (botanist)
Irene Baker (née Williams, 1918 – November 6, 1989) was an American botanist who collaborated with her husband Herbert G. Baker to research pollination biology, the composition of nectar and study its ecological, evolutionary and taxonomic qualities. Early life and education Baker was born in the United Kingdom in 1918. She completed a Bachelor of Science degree at the University of Wales in Cardiff where she studied zoology and mathematics. She then taught at both high school and technical college levels. Teaching and research In 1945, she married Herbert G. Baker, a botanist and university professor. In 1954 Herbert joined the faculty of the University College of Ghana and Baker accompanied him to Ghana. While in Ghana, Baker researched the tsetse fly. In 1957 Herbert accepted a position with the University of California, Berkeley and again Baker accompanied her husband. She went on to obtain a position teaching microbiology at Mills College, where she worked for the next ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Dispersal
Biological dispersal refers to both the movement of individuals (animals, plants, fungi, bacteria, etc.) from their birth site to their breeding site ('natal dispersal'), as well as the movement from one breeding site to another ('breeding dispersal'). Dispersal is also used to describe the movement of propagules such as seeds and spores. Technically, dispersal is defined as any movement that has the potential to lead to gene flow. The act of dispersal involves three phases: departure, transfer, settlement and there are different fitness costs and benefits associated with each of these phases. Through simply moving from one habitat patch to another, the dispersal of an individual has consequences not only for individual fitness, but also for population dynamics, population genetics, and species distribution. Understanding dispersal and the consequences both for evolutionary strategies at a species level, and for processes at an ecosystem level, requires understanding on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-pollination
Self-pollination is a form of pollination in which pollen from the same plant arrives at the Stigma (botany), stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen is transferred to the Stigma (botany), stigma of the same flower; in geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from Microsporangia, microsporangium to ovule within a single (Monoecy, monoecious) gymnosperm. Some plants have mechanisms that ensure autogamy, such as flowers that do not open (cleistogamy), or stamens that move to come into contact with the stigma. The term selfing that is often used as a synonym, is not limited to self-pollination, but also applies to other types of self-fertilization. Occurrence Few plants self-pollinate without the aid of pollen vectors (such as wind or insects). The mechanism is seen most often in some legumes such as p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angiosperms
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils are in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollination Biology
Anthecology, or pollination biology, is the study of pollination as well as the relationships between flowers and their pollinators. Floral biology is a bigger field that includes these studies. Most flowering plants, or angiosperms, are pollinated by animals, and especially by insects. The major flower-frequenting insect taxa include beetles, flies, wasps, bees, ants, thrips, butterflies, and moths. Insects carry out pollination when visiting flowers to obtain nectar or pollen, to prey on other species, or when pseudo-copulating with insect-mimicking flowers such as orchids. Pollination-related interactions between plants and insects are considered mutualistic, and the relationships between plants and their pollinators have likely led to increased diversity of both angiosperms and the animals that pollinate them. Anthecology brings together many disciplines, such as botany, horticulture, entomology, and ecology. History Anthecology began as a descriptive science relying on obs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolutionary Ecology
Evolutionary ecology lies at the intersection of ecology and evolutionary biology. It approaches the study of ecology in a way that explicitly considers the evolutionary histories of species and the interactions between them. Conversely, it can be seen as an approach to the study of evolution that incorporates an understanding of the interactions between the species under consideration. The main subfields of evolutionary ecology are life history evolution, sociobiology (the evolution of social behavior), the evolution of interspecific interactions (e.g. cooperation, predator–prey interactions, parasitism, mutualism) and the evolution of biodiversity and of ecological communities. Evolutionary ecology mostly considers two things: how interactions (both among species and between species and their physical environment) shape species through selection and adaptation, and the consequences of the resulting evolutionary change. Evolutionary models A large part of evolutionary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanist
Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (''botanē'') meaning "pasture", " herbs" "grass", or " fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society For The Study Of Evolution
The Society for the Study of Evolution is a professional organization of evolutionary biologists. It was formed in the United States in 1946 to promote evolution and the integration of various fields of science concerned with evolution and to organize the publication of a scientific journal to report on new research on evolution across a variety of fields. The Society was established at a meeting in St. Louis on March 30, 1946. Fifty-seven scientists attended the meeting, which was chaired by Alfred E. Emerson. George Gaylord Simpson was elected as the Society's first President, with E. B. Babcock, Emerson, and J. T. Patterson as his Vice-presidents and Ernst Mayr as secretary. This society grew as an extension of the US National Research Council's Committee on Common Problems of Genetics and Paleontology (later renamed the Committee on Common Problems of Genetics, Paleontology and Systematics). The first annual meeting of the society was held in Boston, December 28–31, 1946. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Botanical Society
The California Botanical Society was founded by Willis Linn Jepson in 1913, since when it has advanced the knowledge of botanical sciences in the Western United States Services The society services are: the journal ''Madroño'', published since 1916; annual banquets in various California locations along with educational lectures; research support on green plants of Baja California, (enabled by the Annetta Carter Memorial Fund); graduate student support (together with the annual banquet); and community discussions with professional botanists. Journal ''Madroño'' is the quarterly peer-reviewed scientific journal of the Society. It was established in 1916 and focuses on botany in the western part of North America. Articles are published in English or Spanish. The current editor is Matt Ritter (California Polytechnic State University). See also * University and Jepson Herbaria The University and Jepson Herbaria are two herbaria that share a joint facility at the Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanical Society Of America
The Botanical Society of America (BSA) represents professional and amateur botanists, researchers, educators and students in over 80 countries of the world. It functions as a United States nonprofit 501(c)(3) membership society. History The society was first established in 1893 as an outgrowth from the Botanical Club of the American Association for the Advancement of Science at a meeting in Rochester, New York, on August 22, 1892. The organizing principles of the society were the enhancement of the study of plants in North America and to professionalize such efforts. In 1906, the organization merged with the Society for Plant Morphology and Physiology and the American Mycological Society. Sections The society has 16 special interest sections: Former presidents Former presidents of the society have included: * William Trelease - Director of the Missouri Botanical Garden and the first president of the society * Nathaniel Lord Britton - Cofounder of the New York Botanical Garden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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