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Ambystoma Altamirani
The mountain stream salamander or mountain stream siredon (''Ambystoma altamirani'') is a species of mole salamander that only lives in central Mexico. Description The mountain stream salamander grows to be about 115 mm long. Its tail is slender, with a low fin along the top and an even smaller fin on the bottom of the tail. The tail is about 50mm. The limbs are also slender. The dorsal surface and the sides are a purplish-black color, while the belly is a purplish-lavender. The chin and lower surfaces of the limbs are clouded with a light lavender hue. The edges of the lips, tips of the digits, and the fin on the bottom of the tail are a cream color.40. Mountain Stream Siredon (''Ambystoma altamirani''). Evolutionarily Distinct and Globally Endangered (EDGE). edgeofexistence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfredo Dugès
Alfredo Dugès (born Alfred Auguste Delsescautz Dugès; 16 April 1826 – 7 January 1910) was a French-born, Mexican physician and naturalist born in Montpellier. He was the son of zoologist Antoine Louis Dugès (1797–1838). Alfredo Dugès is largely remembered for his extensive studies of Mexican herpetology. He studied medicine at the University of Paris, and in 1852 emigrated to Mexico. He settled in Guanajuato, where he worked as an Obstetrics, obstetrician, also giving classes in natural history at the ''Escuela de Estudios Superiores de Guanajuato''. With his brother, Entomology, entomologist Eugenio Dugès (1826–1895), he organized frequent field trips in order to collect specimens. Dugès published numerous scientific papers in several fields including herpetology, botany, and entomology. At Guanajuato, he was director of the local museum, later named the ''Museo Alfredo Dugès'' (:es:Museo Alfredo Dugès, es) in his honor. In Mexico, he described 40 new species of rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mole Salamander
The mole salamanders (genus ''Ambystoma'') are a group of Salamandroidea, advanced salamanders endemic to North America. The group has become famous due to the study of the axolotl (''A. mexicanum'') in research on neoteny, paedomorphosis, and the tiger salamander (''A. tigrinum, A. mavortium'') which is often sold as a pet, and is the List of U.S. state amphibians, official amphibian of four US states. General description Terrestrial animal, Terrestrial mole salamanders are identified by having wide, protruding eyes, prominent costal grooves, and thick arms. Most have vivid patterning on dark backgrounds, with marks ranging from deep blue spots to large yellow bars depending on the species. Terrestrial adults spend most of their lives underground in burrows, either of their own making or abandoned by other animals. Some northern species may hibernation, hibernate in these burrows throughout the winter. They live alone and feed on any available invertebrate. Adults spend little ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundary, maritime boundaries with the Pacific Ocean to the west, the Caribbean Sea to the southeast, and the Gulf of Mexico to the east. Mexico covers 1,972,550 km2 (761,610 sq mi), and is the List of countries by area, thirteenth-largest country in the world by land area. With a population exceeding 130 million, Mexico is the List of countries by population, tenth-most populous country in the world and is home to the Hispanophone#Countries, largest number of native Spanish speakers. Mexico City is the capital and List of cities in Mexico, largest city, which ranks among the List of cities by population, most populous metropolitan areas in the world. Human presence in Mexico dates back to at least 8,000 BC. Mesoamerica, considered a cradle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lavender (color)
Lavender is a light shade of purple or violet. It applies particularly to the color of the flower of the same name. The web color called lavender is displayed adjacent—it matches the color of the palest part of the flower; however, the more saturated color shown as '' floral lavender'' more closely matches the average color of the lavender flower as shown in the picture and is the tone of lavender historically and traditionally considered ''lavender'' by average people as opposed to website designers.Maerz and Paul ''A Dictionary of Color'' New York:1930 McGraw-Hill See discussion of color lavender, Page 163; See color Sample of Lavender—Page 109 Plate 43 Color Sample C5 (Note that the color sample of lavender shown in the book ''A Dictionary of Color'' (the world standard for color matching before the introduction of computers) matches the shade of lavender displayed above under the heading "Lavender (floral)" ) The color lavender might be described as a ''medium purple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valley Of Mexico
The Valley of Mexico (; ), sometimes also called Basin of Mexico, is a highlands plateau in central Mexico. Surrounded by mountains and volcanoes, the Valley of Mexico was a centre for several pre-Columbian civilizations including Teotihuacan, the Toltec, and the Aztec Empire. The valley used to contain five interconnected lakes called Lake Zumpango, Lake Xaltocan (), Lake Xochimilco, Lake Chalco and the largest, Lake Texcoco, covering about of the valley floor. When the Spaniards arrived in the Valley of Mexico, it had one of the highest population concentrations in the world with about one million people. After the conquest of the Aztec Empire, the Spaniards rebuilt the largest and most dominant city, Mēxihco Tenōchtitlan, renaming it ''Ciudad de México'' (Mexico City) and over time began to drain the lakes' waters to control flooding. The Valley of Mexico is located in the Trans-Mexican Volcanic Belt. The valley contains most of the Mexico City metropolitan area, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine–oak Forest
Pine–oak forest, pine–oak woodland, or oak–pine forest is a group of similar of ecosystems, primarily found in North and Central America. These areas are dominated by pine and oak trees. Under the Forest-Range Environmental Study Ecosystems classification these are denoted as FRES 14. FRES14 includes the A. W. Kuchler, Kuchler system forest types of Cedar hemlock douglas-fir forest, cedar–hemlock–Douglas-fir forest (K-2), Douglas-fir forest (K-11), California mixed evergreen forest (K-25), and Mosaic of cedar-hemlock-douglas-fir forest and Oregon oakwoods (K-24). A pine–oak forest can be a stage in ecological succession between pine forests and oak forests. It can also be a long-term stable stage. Examples include: *Central American pine–oak forests *Central Appalachian dry oak–pine forest *Central Appalachian pine–oak rocky woodland *Madrean pine–oak woodlands *Mesoamerican pine–oak forests *Pine-oak Forests, Puebla *Sierra Juárez and San Pedro Mártir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illegal Logging
Illegal logging is the harvest, transportation, purchase, or sale of timber in violation of laws. The harvesting procedure itself may be illegal, including using corrupt means to gain access to forests; extraction without permission, or from a protected area; the cutting down of protected species; or the extraction of timber in excess of agreed limits. Illegal logging is a driving force for a number of environmental issues such as deforestation, soil erosion and biodiversity loss which can drive larger-scale environmental crises such as climate change and other forms of environmental degradation. Illegality may also occur during transport, such as illegal processing and export (through smuggling, fraudulent declaration to customs); the tax avoidance, avoidance of taxes and other charges, and fraudulent certification. These acts are often referred to as "wood laundering". Illegal logging is driven by a number of economic forces, such as demand for raw materials, land grabbing and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salamander
Salamanders are a group of amphibians typically characterized by their lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults. All ten extant salamander families are grouped together under the order Urodela, the sole surviving order from the group Caudata. ''Urodela'' is a scientific Latin term based on the Ancient Greek : ourà dēlē "conspicuous tail". ''Caudata'' is the Latin for "tailed ones", from : "tail". Salamander diversity is highest in eastern North America, especially in the Appalachian Mountains; most species are found in the Holarctic realm, with some species present in the Neotropical realm. Salamanders never have more than four toes on their front legs and five on their rear legs, but some species have fewer digits and others lack hind limbs. Their permeable skin usually makes them reliant on habitats in or near water or other cool, damp places. So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axolotl
The axolotl (; from ) (''Ambystoma mexicanum'') is a neoteny, paedomorphic salamander, one that Sexual maturity, matures without undergoing metamorphosis into the terrestrial adult form; adults remain Aquatic animal, fully aquatic with obvious external gills. This trait is somewhat unusual among amphibians, though this trait is not unique to axolotls, and this is apparent as they may be confused with the Tadpole, larval stage or Ambystoma#Species, other neotenic adult mole salamanders (''Ambystoma spp.''), such as the occasionally paedomorphic tiger salamander (''Ambystoma tigrinum, A. tigrinum'') widespread in North America; or with mudpuppies (''Necturus spp.''), which bear a superficial resemblance but are from a different Family (biology), family of salamanders. Axolotls originally inhabited a system of interconnected wetlands and lakes in the Mexican highlands; they were known to inhabit the smaller lakes of Lake Xochimilco, Xochimilco and Lake Chalco, Chalco, and are al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lissamphibia
The Lissamphibia (from Greek λισσός (lissós, "smooth") + ἀμφίβια (amphíbia), meaning "smooth amphibians") is a group of tetrapods that includes all modern amphibians. Lissamphibians consist of three living groups: the Salientia (frogs and their extinct relatives), the Caudata (salamanders and their extinct relatives), and the Gymnophiona (the limbless caecilians and their extinct relatives). Salientians and caudatans are likely more closely related to each other than to caecilians. The name Batrachia is commonly used for the clade combining salientians and caudatans. A fourth group, the Allocaudata (also known as Albanerpetontidae) is also known, spanning 160 million years from the Middle Jurassic to the Early Pleistocene, but became extinct two million years ago. For several decades, this name has been used for a group that includes all living amphibians, but excludes all the main groups of Paleozoic tetrapods, such as Temnospondyli, Lepospondyli, Embolome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mole Salamanders
The mole salamanders (genus ''Ambystoma'') are a group of Salamandroidea, advanced salamanders endemic to North America. The group has become famous due to the study of the axolotl (''A. mexicanum'') in research on neoteny, paedomorphosis, and the tiger salamander (''A. tigrinum, A. mavortium'') which is often sold as a pet, and is the List of U.S. state amphibians, official amphibian of four US states. General description Terrestrial animal, Terrestrial mole salamanders are identified by having wide, protruding eyes, prominent costal grooves, and thick arms. Most have vivid patterning on dark backgrounds, with marks ranging from deep blue spots to large yellow bars depending on the species. Terrestrial adults spend most of their lives underground in burrows, either of their own making or abandoned by other animals. Some northern species may hibernation, hibernate in these burrows throughout the winter. They live alone and feed on any available invertebrate. Adults spend little ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Amphibians Of Mexico
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
