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Migratory Bird Center
The Smithsonian Migratory Bird Center is a research program dedicated to fostering greater understanding, appreciation, and protection of bird migration. It is located at the Smithsonian's National Zoo in Washington, D.C. History This Smithsonian Institution research program was founded with Congressional support in 1991, and was incorporated in 1997 as part of the National Zoological Park. It came under the Smithsonian Conservation Biology Institute, established in 2010. Its founding director was ornithologist Dr. Russell Greenberg. From an initial focus on the conservation biology of Neotropical songbirds, it now researches the role of disease in population declines in migratory birds, environmental challenges facing urban and suburban birds and their adaptation to changes in natural and anthropogenic Anthropogenic ("human" + "generating") is an adjective that may refer to: * Anthropogeny, the study of the origins of humanity Anthropogenic may also refer to things that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Animal migration, Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds and the Antarctic each year. Some species of Procellariiformes, tubenoses, such as albatrosses, circle the Earth, flying over the southern oceans, while others such as Manx shearwaters migrate between their northern breeding grounds and the southern ocean. Shorter migrations are common, while longer ones are not. The shorter migrations include altitudinal migrations on mountains, including the Andes and Himalayas. The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the Sun and stars, the Earth's magnetic field, and mental maps. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthropogenic Biome
Anthropogenic biomes, also known as anthromes, human biomes or intensive land-use biomes, describe the terrestrial biosphere in its contemporary, human-altered form using global ecosystem units (biomes) defined by global patterns of sustained direct human interaction with ecosystems. Anthromes are generally composed of heterogeneous mosaics of different land uses and land covers, including significant areas of fallow or regenerating habitats. Origin and evolution of the concept Anthromes were first named and mapped by Erle Ellis and Navin Ramankutty in their 2008 paper, "Putting People in the Map: Anthropogenic Biomes of the World". Anthrome maps now appear in numerous textbooks. and in the National Geographic World Atlas. The most recent version oanthrome mapswere published in 2021. In a recent global ecosystem classification, anthropogenic biomes have been incorporated into several distinct functional biomes in the terrestrial and freshwater realms, and additional units hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Research Institutes In The United States
Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and distribution of life. Central to biology are five fundamental themes: the cell (biology), cell as the basic unit of life, genes and heredity as the basis of inheritance, evolution as the driver of biological diversity, energy transformation for sustaining life processes, and the maintenance of internal stability (homeostasis). Biology examines life across multiple biological organisation, levels of organization, from molecules and cells to organisms, populations, and ecosystems. Subdisciplines include molecular biology, physiology, ecology, evolutionary biology, developmental biology, and systematics, among others. Each of these fields applies a range of methods to investigate biological phenomena, including scientific method, observation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Animal migration, Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds and the Antarctic each year. Some species of Procellariiformes, tubenoses, such as albatrosses, circle the Earth, flying over the southern oceans, while others such as Manx shearwaters migrate between their northern breeding grounds and the southern ocean. Shorter migrations are common, while longer ones are not. The shorter migrations include altitudinal migrations on mountains, including the Andes and Himalayas. The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the Sun and stars, the Earth's magnetic field, and mental maps. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithological Organizations In The United States
Ornithology, from Ancient Greek ὄρνις (''órnis''), meaning "bird", and -logy from λόγος (''lógos''), meaning "study", is a branch of zoology dedicated to the study of birds. Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, insular biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. Most modern biological theories apply acr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Day
Bird Day or World Migratory Bird Day is the name of several holidays celebrating birds. Various countries observe such a holiday on various dates. World Migratory Bird Day In 2006, the United Nations established World Migratory Bird Day to be held on the second weekend of May every year. The event was founded as an effort of the UN's Agreement on the Conservation of African-Eurasian Migratory Waterbirds to raise awareness of the migratory linkages between regions of the globe. World Migratory Bird Day events have been held in 118 nations. Each year, the United Nations announces a uniting theme for official events. It was formerly known as International Migratory Bird Day. This program is dedicated to international conservation efforts and environmental education in Canada, the United States, Mexico, Central and South America, and the Caribbean. Originated by the Smithsonian Migratory Bird Center, it is now coordinated by Environment for the Americas. International Migratory Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Food
Organic food, also known as ecological or biological food, refers to foods and beverages produced using methods that comply with the standards of organic farming. Standards vary worldwide, but organic farming features practices that cycle resources, promote ecological balance, and conserve biodiversity. Organizations regulating organic products may restrict the use of certain pesticides and fertilizers in the farming methods used to produce such products. Organic foods are typically not processed using irradiation, industrial solvents, or synthetic food additives. In the 21st century, the European Union, the United States, Canada, Mexico, Japan, and many other countries require producers to obtain special certification to market their food as ''organic''. Although the produce of kitchen gardens may actually be organic, selling food with an organic label is regulated by governmental food safety authorities, such as the National Organic Program of the US Department of Agricu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shade Grown Coffee
Shade-grown coffee is a form of crop produced from coffee plants grown under a canopy of trees. A canopy of assorted types of shade trees is created to cultivate shade-grown coffee. Because it incorporates principles of natural ecology to promote natural ecological relationships, shade-grown coffee can be considered an offshoot of agricultural permaculture or agroforestry. The resulting coffee can be marketed as "shade-grown". History Coffee (especially ''Coffea arabica'') is a small tree or shrub that grows in forests in its wild form, and was traditionally grown for commercial purposes under other trees that provided shade. Since the mid-1970s, new sun-tolerant trees and shrubs have been developed in response to fungal disease presence, especially coffee leaf rust (''Hemileia vastatrix''), and with an aim to yield higher production rates. As a result of modernization and a push for higher yielding crops, sun-tolerant coffee plants were created to produce larger yields through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles Times
The ''Los Angeles Times'' is an American Newspaper#Daily, daily newspaper that began publishing in Los Angeles, California, in 1881. Based in the Greater Los Angeles city of El Segundo, California, El Segundo since 2018, it is the List of newspapers in the United States, sixth-largest newspaper in the U.S. and the largest in the Western United States with a print circulation of 118,760. It has 500,000 online subscribers, the fifth-largest among U.S. newspapers. Owned by Patrick Soon-Shiong and published by California Times, the paper has won over 40 Pulitzer Prizes since its founding. In the 19th century, the paper developed a reputation for civic boosterism and opposition to Trade union, labor unions, the latter of which led to the Los Angeles Times bombing, bombing of its headquarters in 1910. The paper's profile grew substantially in the 1960s under publisher Otis Chandler, who adopted a more national focus. As with other regional newspapers in California and the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Songbird
A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 5,000 or so speciesEdwards, Scott V. and John Harshman. 2013. Passeriformes. Perching Birds, Passerine Birds. Version 06 February 2013 (under construction). http://tolweb.org/Passeriformes/15868/2013.02.06 in The Tree of Life Web Project, http://tolweb.org/ ccessed 2017/12/11 found all over the world, in which the vocal organ typically is developed in such a way as to produce a diverse and elaborate bird song. Songbirds form one of the two major lineages of extant perching birds (~4,000 species), the other being the Tyranni (~1,000 species), which are most diverse in the Neotropics and absent from many parts of the world. The Tyranni have a simpler syrinx musculature, and while their vocalizations are often just as complex and striking as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
