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Colostethus Panamansis
''Colostethus panamansis'', also known as the Panama rocket frog or (ambiguously) common rocket frog, is a species of poison dart frog. It is found in northwestern Colombia and Panama. It is one of the best studied poison dart frogs; however, until 2004 ''Colostethus panamansis'' was considered a synonym of ''Colostethus inguinalis'', and consequently the older literature uses that name. Distribution and habitat ''Colostethus panamansis'' is found in several parts of Panama and in Parque Nacional Natural Los Katios in Colombia. It is found living near streams in forested lowland and hilly country, usually at elevations below . Biology Adult males measure in snout–vent length and adult females . The female lays her eggs in clutches among leaf litter. When they hatch, she carries them around on her back for up to nine days when she immerses herself in a fast flowing stream and they become detached and continue their development in the water. Research The pathogenic fungus ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emmett Reid Dunn
Emmett Reid Dunn (November 21, 1894 in Alexandria, Virginia – February 13, 1956) was an American Herpetology, herpetologist noted for his work in Panama and for studies of salamanders in the Eastern United States. Biography He attended Haverford College as an undergraduate and received his PhD from Harvard University. After receiving his PhD, he taught at Smith College. He left Smith to study on a Guggenheim Fellowship, following which he became a professor of biology at Haverford College. He was also curator of reptiles and amphibians at the Academy of Natural Sciences, Philadelphia. He served as editor of ''Copeia'' from 1924 to 1929. Eponyms A number of reptiles were named in honor of Dunn, both species (binomials)species:Bo Beolens, Beolens, Bo; species:Michael Watkins, Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . ("Dunn", pp. 77-78). and subspecies (trinomials), including t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evaluate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Emmett Reid Dunn
In biology, a taxon (back-formation from ''Taxonomy (biology), taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular Taxonomic rank, ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's Linnaean taxonomy, system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard de Jussieu, Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of bio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Panama
This is a list of amphibians found in Panama. 205 amphibian species have been registered in Panama, which are grouped in 3 orders: Caecilians (Gymnophiona), Salamanders (Caudata) and Frogs and Toads (Anura). This list is derived from the database listing of AmphibiaWeb.AmphibiaWeb 2012 25 species are critically endangered(CR), 16 species are endangered (EN) and 6 species are vulnerable (VU). One species has recently (September 2016) gone extinct with the last individual in captivity dying, and with not a single specimen seen nor heard in the wild for over a decade. Several other species might also be extinct with no specimen found for decades. The following tags are used to highlight specific species' conservation status as assessed by the IUCN: Caecilians (Gymnophiona) Caeciliidae Order: Gymnophiona. Family: Caeciliidae *'' Caecilia isthmica'' (DD) *'' Caecilia leucocephala'' (LC) *'' Caecilia nigricans'' (LC) *'' Caecilia tentaculata'' (LC) *'' Caecilia volcani'' (DD) *'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Colombia
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colostethus
''Colostethus'' is a genus of poison dart frogs native to Central and South America, from Panama south to Colombia, Ecuador, and northern Peru. Their common name is rocket frogs, but this name may refer to frogs in other genera and families, following the taxonomic revision of the genus in 2006. Taxonomy Formerly, the genus ''Colostethus'' was found to be "rampantly nonmonophyletic" in the taxonomic revision of poison dart frogs published in 2006. Before the revision, it had 138 species, but this was reduced to 18 species, after species of the former ''Colostethus'' were distributed among eight genera in two families, that is, in Dendrobatidae and in the newly established family Aromobatidae (e..g., ''Anomaloglossus''). Within Dendrobatidae, many former ''Colostethus'' species were moved to ''Hyloxalus'', while three were moved to the new genus '' Silverstoneia''. Nevertheless, ''Colostethus'' is still considered paraphyletic because some ''Colostethus'' are more closely related ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pesticide
Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide. The most common of these are herbicides which account for approximately 80% of all pesticide use. Most pesticides are intended to serve as plant protection products (also known as crop protection products), which in general, protect plants from weeds, fungi, or insects. As an example, the fungus ''Alternaria solani'' is used to combat the aquatic weed ''Salvinia''. In general, a pesticide is a chemical (such as carbamate) or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, or spread disease, or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation
Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, a half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. The Food and Agriculture Organization of the United Nations defines deforestation as the conversion of forest to other land uses (regardless of whether it is human-induced). "Deforestation" and "forest area net change" are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the International Union for Conservation of Nature, IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to International Unio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koch's Postulates
Koch's postulates ( )"Koch" ''''. are four criteria designed to establish a between a and a . The postulates were formulated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poison Dart Frog
Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to tropical Central and South America. These species are diurnal and often have brightly colored bodies. This bright coloration is correlated with the toxicity of the species, making them aposematic. Some species of the family Dendrobatidae exhibit extremely bright coloration along with high toxicity, while others have cryptic coloration with minimal to no amount of observed toxicity. The species that have great toxicity derive this feature from their diet of ants, mites and termites. However, other species that exhibit cryptic coloration, and low to no amounts of toxicity, eat a much larger variety of prey. Many species of this family are threatened due to human infrastructure encroaching on their habitats. These amphibians are often called "dart frogs" due to the Native Americans' use of the ... [...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] |
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