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Karen Lips
Karen R. Lips is a Professor of Biology at University of Maryland, College Park. Lips' work in the 1990s eventually contributed to the identification of the chytrid fungus as the primary cause of frog decline worldwide. Education and early career Lips received her Bachelor of Science in zoology from University of South Florida in 1988. She then spent a year researching at the Organization for Tropical Studies in Costa Rica through their program Tropical Biology: An Ecological Approach. In 1995, she received her PhD in Biology at University of Miami in the research group of herpetologist Jay M. Savage. Her doctoral research centered on studying the population ecology of Isthmohyla calypsa—a tree frog found only in the Talamancan mountains—in the Reserva Protectora Las Tablas in Costa Rica. She moved to the region in 1991 and by 1993 observed that the population of these frogs had declined dramatically. She documented their population dynamics and breeding patterns in her d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural resource managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cordillera De Talamanca
The Cordillera de Talamanca is a mountain range that lies in the southeast half of Costa Rica and the far west of Panama. Much of the range and the area around it is included in La Amistad International Park, which also is shared between the two countries. This range in the south of Costa Rica stretches from southwest of San José to beyond the border with Panama and contains the highest peaks of both Costa Rica and Panama, among them Cerro Chirripó at 3,820 m, and the more accessible high peak of Cerro de la Muerte. Much of the Caribbean areas of the range are still unexplored. Exploration and classification The range is covered by the Talamancan montane forests to elevations of approximately 3,000 m. Much of it is covered by rainforests. Above elevations of 1,800 m these are dominated by huge oak trees (''Quercus costaricensis''). Above 3,000 m, the forests transition to enclaves of sub-páramo, a sort of shrub and dwarf bamboo '' Chusquea'' dominated scrub, above 3,400 m t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Protection
Environmental protection is the practice of protecting the natural environment by individuals, organizations and governments. Its objectives are to conserve natural resources and the existing natural environment and, where possible, to repair damage and reverse trends. Due to the pressures of overconsumption, population growth and technology, the biophysical environment is being degraded, sometimes permanently. This has been recognized, and governments have begun placing restraints on activities that cause environmental degradation. Since the 1960s, environmental movements have created more awareness of the multiple environmental problems. There is disagreement on the extent of the environmental impact of human activity, so protection measures are occasionally debated. Approaches to environmental protection Voluntary environmental agreements In industrial countries, voluntary environmental agreements often provide a platform for companies to be recognized for moving beyond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural resource managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Copé
El Copé is a Corregimientos of Panama, ''corregimiento'' (subdistrict) in Olá District, Coclé Province, Panama. It has a land area of and had a population of 1,425 as of 2010, giving it a population density of . Its population as of 1990 was 1,081; its population as of 2000 was 1,263. See also *El Copé National Park References Corregimientos of Coclé Province {{Coclé-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Illinois University Carbondale
Southern Illinois University (SIU or SIUC) is a public research university in Carbondale, Illinois. Founded in 1869, SIU is the oldest and flagship campus of the Southern Illinois University system. The university enrolls students from all 50 states as well as more than 100 countries. It is classified among "R2: Doctoral Universities – High research activity". SIU offers 3 associate, 100 bachelor's, 73 master's, and 36 Ph.D programs in addition to professional degrees in architecture, law, and medicine. History An Act of the Twenty-sixth General Assembly of Illinois, approved March 9, 1869, created Southern Illinois Normal College, the second state-supported normal school in Illinois. Carbondale held the ceremony of cornerstone laying, May 17, 1870. The first historic session of Southern Illinois Normal University was a summer institute, with a first faculty of eight members and an enrollment of 53 students. It was renamed Southern Illinois University in 1947. The univer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chytrids
Chytridiomycota are a division of zoosporic organisms in the kingdom Fungi, informally known as chytrids. The name is derived from the Ancient Greek ('), meaning "little pot", describing the structure containing unreleased zoöspores. Chytrids are one of the early diverging fungal lineages, and their membership in kingdom Fungi is demonstrated with chitin cell walls, a posterior whiplash flagellum, absorptive nutrition, use of glycogen as an energy storage compound, and synthesis of lysine by the -amino adipic acid (AAA) pathway. Chytrids are saprobic, degrading refractory materials such as chitin and keratin, and sometimes act as parasites. There has been a significant increase in the research of chytrids since the discovery of ''Batrachochytrium dendrobatidis'', the causal agent of chytridiomycosis. Classification Species of Chytridiomycota have traditionally been delineated and classified based on development, morphology, substrate, and method of zoöspore discharge. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batrachochytrium Dendrobatidis
''Batrachochytrium dendrobatidis'' ( ), also known as ''Bd'' or the amphibian chytrid fungus, is a fungus that causes the disease chytridiomycosis in amphibians. Since its discovery in 1998 by Lee Berger, the disease devastated amphibian populations around the world, in a global decline towards multiple extinctions, part of the Holocene extinction. A recently described second species, '' B. salamandrivorans'', also cause chytridiomycosis and death in salamanders. The fungal pathogens that cause the disease chytridiomycosis ravage the skin of frogs, toads, and other amphibians, throwing off their balance of water and salt and eventually causing heart failure, Nature reports. Some amphibian species appear to have an innate capacity to withstand chytridiomycosis infection due to symbiosis with ''Janthinobacterium lividum''. Even within species that generally succumb, some populations survive, possibly demonstrating that these traits or alleles of species are being subjected to evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protozoa
Protozoa (singular: protozoan or protozoon; alternative plural: protozoans) are a group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic tissues and debris. Historically, protozoans were regarded as "one-celled animals", because they often possess animal-like behaviours, such as motility and predation, and lack a cell wall, as found in plants and many algae. When first introduced by Georg Goldfuss (originally spelled Goldfuß) in 1818, the taxon Protozoa was erected as a class within the Animalia, with the word 'protozoa' meaning "first animals". In later classification schemes it was elevated to a variety of higher ranks, including phylum, subkingdom and kingdom, and sometimes included within Protoctista or Protista. The approach of classifying Protozoa within the context of Animalia was widespread in the 19th and early 20th century, but not universal. By the 1970s, it became usual to require th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rick Speare
Richard "Rick" Speare (2 August 1947 – 5 June 2016) was an Australian public health physician and veterinary surgeon. He is best known for his research on animal diseases, particularly his work on chytridiomycosis in amphibians. Research career Speare worked clinically as both a medical doctor and a veterinarian. He joined James Cook University in 1988 as a research fellow, and was appointed an associate professor in 1991. His research covered a suite of diseases, including paramphistomid trematodes of the agile wallaby, scabies, head lice, malaria, and Australian bat lyssavirus. However, he is best known for his work on amphibian diseases such as salmonella and ranaviruses in cane toads, ''Mucor amphibiorum'' in the Australian green tree frog, and, most notably, chytridiomycosis. Speare completed his PhD on the helminth parasite ''Strongyloides'' in 1986. He published an important book chapter on the morphology of ''Strongyloides'' spp. in "Strogyloidiasis: A Major Roundworm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fortuna, Costa Rica
La Fortuna is a district of the San Carlos canton, in the Alajuela province of Costa Rica. Toponymy "La Fortuna" is Spanish for "The Fortune", and aptly named due its ample supply of tourist attractions and extremely fertile lands. Although there is a common myth that the town got its name due to its sparing from the Arenal Volcano's eruptions, the town actually got its name before the latest eruption cycle and was named for the fertile lands ("The Fortune") where it is located. History La Fortuna was created on 5 February 1952 by Decreto Ejecutivo 15. Originally called "El Burío", La Fortuna was founded in the mid 1930s by settlers that came from Ciudad Quesada, Grecia (canton), Alajuela and other parts of the region. In 1968, the Arenal Volcano erupted to the west, causing extensive damage and casualties, including 82 deaths. The eruption did not reach the village of La Fortuna. This catastrophe, nonetheless, changed the geography of the whole region, making it one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loss Of Biodiversity
Biodiversity loss includes the worldwide extinction of different species, as well as the local reduction or loss of species in a certain habitat, resulting in a loss of biological diversity. The latter phenomenon can be temporary or permanent, depending on whether the environmental degradation that leads to the loss is reversible through ecological restoration/ecological resilience or effectively permanent (e.g. through land loss). The current global extinction (frequently called the sixth mass extinction or Anthropocene extinction), has resulted in a biodiversity crisis being driven by human activities which push beyond the planetary boundaries and so far has proven irreversible. Even though permanent global species loss is a more dramatic and tragic phenomenon than regional changes in species composition, even minor changes from a healthy stable state can have dramatic influence on the food web and the food chain insofar as reductions in only one species can adversely affect th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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