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Caloplaca Obamae
''Caloplaca obamae'' is a species of crustose lichen in the fungus genus ''Caloplaca''. It is the first species to be named in honor of United States President Barack Obama. ''C. obamae'' was discovered in 2007 by Kerry Knudsen on Santa Rosa Island, California, Santa Rosa Island in California and published in March 2009. Knudsen stated that he chose to honor Obama for "his support of science and scientific education" and wrote the manuscript for publication of the species in the time between Obama's election and his inauguration.ScienceDaily. 16 April 2009New Species Of Lichen Named After President Barack Obama Accessed online 16 April 2009.Knudsen, K. 2009''Caloplaca obamae'', a new species from Santa Rosa Island, California ''Opuscula Philolichenum'', 6: 37–40. Description ''Caloplaca obamae'' produces a thin thallus arranged in orange granules that are 30–50 micrometre, μm in diameter and form patches that can be 0.2–1 mm in diameter, ultimately covering a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustose Lichen
Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichens consists of a cortex (botany), cortex layer, an algal layer, and a medulla. The upper cortex layer is differentiated and is usually pigmented. The algal layer lies beneath the cortex. The medulla fastens the lichen to the substrate and is made up of Fungus, fungal hyphae. The surface of crustose lichens is characterized by branching cracks that periodically close in response to climatic variations such as alternate wetting and drying regimes. Subtypes * Powdery – considered as the simplest subtype due to the absence of an organized thallus. :The thallus appears powdery. :E.g. Genera ''Lepraria'', ''Vezdaea'' * Endolithic – grows inside the rock, usually in interstitial spaces between mineral grains. The :upper cortex is usually d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Named After Barack Obama
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes in zoological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Of The Southwestern United States
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Lichen Species
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
List Of Organisms Named After Famous People (born 1950–present)
In biological nomenclature, organisms often receive scientific names that honor a person. A taxon (e.g. species or genus; plural: taxa) named in honor of another entity is an eponymous taxon, and names specifically honoring a person or persons are known as patronyms. Scientific names are generally formally published in peer-reviewed journal articles or larger monographs along with descriptions of the named taxa and ways to distinguish them from other taxa. Following rules of Latin grammar, species or subspecies names derived from a man's name often end in ''-i'' or ''-ii'' if named for an individual, and ''-orum'' if named for a group of men or mixed-sex group, such as a family. Similarly, those named for a woman often end in ''-ae'', or ''-arum'' for two or more women. This list is part of the list of organisms named after famous people, and includes organisms named after famous individuals born on or after the 1st of January 1950. It also includes ensembles (including bands and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Things Named After Barack Obama
This is a list of things named after Barack Obama, the 44th president of the United States. This list includes proposed name changes. Biota Barack Obama has been commemorated in the scientific names of at least 14 species, the most of any U.S. president. Animals *'' Aptostichus barackobamai'', a species of wafer trapdoor spiders *'' Baracktrema obamai'', a blood fluke found in Malaysian turtles *'' Desmopachria barackobamai'', a diving beetle from French Guiana *'' Etheostoma obama'', a darter species * '' Lasioglossum obamai'', a Cuban bee * '' Nystalus obamai'' (Western striolated puffbird), a bird from the Amazon *'' Obamadon gracilis'', an extinct lizard *''Paragordius obamai'', a parasitic worm from phylum Nematomorpha * ''Placida barackobamai'', a sea slug * ''Spintharus barackobamai'', a Cuban spider * ''Teleogramma obamaorum'', a cichlid, honoring Barack Obama and First Lady Michelle Obama * ''Tosanoides obama'', a fish discovered in the Papahanaumokuakea Marine Nation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Caloplaca Species
This is a list of species in the lichen genus '' Caloplaca''. Although there were estimated to be more than 500 species in 2008, the family Teloschistaceae has undergone major revisions since then. Several molecular phylogenetic studies have been published that have established a phylogenetic framework to more appropriately classify lichens that were previously grouped in ''Caloplaca''. , Species Fungorum accepts 202 species of ''Caloplaca''. A *'' Caloplaca abbreviata'' *'' Caloplaca abuensis'' *'' Caloplaca adnexa'' *'' Caloplaca agrata'' *'' Caloplaca ahtii'' *'' Caloplaca akbarica'' *'' Caloplaca albopruinosa'' *'' Caloplaca albovariegata'' *'' Caloplaca alcarum'' *'' Caloplaca aliciae'' *'' Caloplaca allanii'' *'' Caloplaca almbornii'' *'' Caloplaca amsterdamensis'' *'' Caloplaca anularis'' *'' Caloplaca arandensis'' *'' Caloplaca archeri'' *'' Caloplaca areolata'' *'' Caloplaca aseptatospora'' *'' Caloplaca astonii'' *'' Caloplaca atroalba'' *'' Calop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryophyte
The Bryophyta s.l. are a proposed taxonomic division containing three groups of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses. Bryophyta s.s. consists of the mosses only. They are characteristically limited in size and prefer moist habitats although they can survive in drier environments. The bryophytes consist of about 20,000 plant species. Bryophytes produce enclosed reproductive structures (gametangia and sporangia), but they do not produce flowers or seeds. They reproduce sexually by spores and asexually by fragmentation or the production of gemmae. Though bryophytes were considered a paraphyletic group in recent years, almost all of the most recent phylogenetic evidence supports the monophyly of this group, as originally classified by Wilhelm Schimper in 1879. The term ''bryophyte'' comes . Terminology The term "Bryophyta" was first suggested by Braun in 1864. G.M. Smith placed this group between Algae and Pteridophyta. Features The d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terricolous Lichen
A terricolous lichen is a lichen that grows on the soil as a substrate. An example is some members of the genus ''Peltigera ''Peltigera'' is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. Commonly known as the dog or pelt lichens, species of ''Peltigera'' are often terricolous (growing on soil), but can also occur on moss, trees, ...''. References Lichenology {{lichen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Miguel Island
San Miguel Island (Chumash: ''Tuqan'') is the westernmost of California's Channel Islands, located across the Santa Barbara Channel in the Pacific Ocean, within Santa Barbara County, California. San Miguel is the sixth-largest of the eight Channel Islands at , including offshore islands and rocks. Prince Island, off the northeastern coast, measures in area. The island, at its farthest extent, is long and wide. San Miguel Island is part of Channel Islands National Park, and almost all of the island () has also been designated as an archaeological district on the National Register of Historic Places. This westernmost Channel Island receives northwesterly winds and severe weather from the open ocean. The cold and nutrient-rich water surrounding the island is home to a diverse array of sea life that is not found on the southern islands. San Miguel Island, together with numerous small islets around it, is defined by the United States Census Bureau as Block 3010, Block Group 3, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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