|
Tapeats Creek
Tapeats Creek is a creek located entirely within the Grand Canyon National Park. It flows southwest from its source near the North Rim of the canyon to the Colorado River at the base of the canyon. It was named by the Second Powell Expedition in the winter of 1871–1872 for a Southern Paiute Indian who claimed ownership of the stream. It contributes the largest amount of water to the Colorado of any tributary on the north side within the Grand Canyon. Sources The creek is fed from Tapeats Spring, the largest Spring in the Grand Canyon. In 1970, the spring was estimated to discharge of water per day into the creek from the Muav Limestone. A small amount of surface water can also flow into the creek. Since the spring flows year round, the creek is a perennial stream. Tributaries Tapeats Creek has one named tributary, Thunder River, a long river that begins where a natural spring ( Thunder Springs) emerges at an elevation of and then drops by approximately . The river, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14th most populous of the 50 states. Its capital city, capital and List of largest cities, largest city is Phoenix, Arizona, Phoenix. Arizona is part of the Four Corners region with Utah to the north, Colorado to the northeast, and New Mexico to the east; its other neighboring states are Nevada to the northwest, California to the west and the List of states of Mexico, Mexican states of Sonora and Baja California (state), Baja California to the south and southwest. Arizona is the 48th state and last of the contiguous United States, contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of in New Spain, it became part of independent Mexico in 1821. After being defeated in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algae
Algae ( , ; : alga ) are any of a large and diverse group of photosynthetic, eukaryotic organisms. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as '' Chlorella'', '' Prototheca'' and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to in length. Most are aquatic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem that are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the '' Charophyta'', a division of green algae which includes, for example, '' Spirogyra'' and stoneworts. Algae that are carried by water are plankton, specifically phytoplankton. Algae constitute a polyphyletic group since they do not include a common ancestor, and although their plastids seem to have a single ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Arizona
List of rivers in Arizona (U.S. state), sorted by name. By drainage basin This list is arranged by drainage basin, with respective tributaries indented under each larger stream's name. Colorado River *Colorado River—(downstream-to-upstream) **Gila River—(downstream-to-upstream) *** San Cristobal Wash *** Tenmile Wash ***Centennial Wash (Maricopa County) *** Hassayampa River ***Agua Fria River ****Ironwood Wash **** New River *****Rock Springs Wash *****Skunk Creek ******Scatter Wash *** Salt River ****Arizona Canal **** Grand Canal (Phoenix) ****Verde River *****Fossil Creek ***** Oak Creek ***** Granite Creek **** Tonto Creek **** White River **** Black River *** Santa Cruz River **** Santa Rosa Wash ****Cañada del Oro **** Madera Canyon, Madera Creek ****Brawley Wash ***** Altar Wash ***** Alambre Wash ***** Arivaca Creek **** Rillito River ***** Tanque Verde Creek ****** Sabino Creek ******Agua Caliente Wash ******* Molino Creek ***** Pantano Wash ****** Rincon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California Davis
The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university near Davis, California. Named a Public Ivy, it is the northernmost of the ten campuses of the University of California system. The institution was first founded as an Agriculture, agricultural branch of the system in 1905 and became the seventh campus of the University of California in 1959. The university is Carnegie Classification of Institutions of Higher Education, classified among "R1: Doctoral Universities – Very high research activity". The UC Davis faculty includes 23 members of the United States National Academy of Sciences, National Academy of Sciences, 30 members of the American Academy of Arts and Sciences, 17 members of the American Law Institute, 14 members of the Institute of Medicine, and 14 members of the National Academy of Engineering. Among other honors that university faculty, alumni, and researchers have won a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missouri University Of Science & Technology
Missouri University of Science and Technology, or Missouri S&T, is a public research university in Rolla, Missouri. It is a member institution of the University of Missouri System. Most of its 7,645 students (fall 2020) study engineering, business, sciences, and mathematics. Known primarily for its engineering school, Missouri S&T offers degree programs in business and management systems, information science and technology, sciences, social sciences, humanities, and arts. Its Carnegie classification is as a "STEM-dominant", R2 doctoral university with "high research activity". History Missouri S&T was founded in 1870 as the Missouri School of Mines and Metallurgy (MSM), the first technological learning institution west of the Mississippi River. Early in its history, the School of Mines was focused primarily on mining and metallurgy. Rolla is located close to the Southeast Missouri Lead District which produces about 70% of the U.S. primary supply of lead as well as significa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapeats Sandstone
Except where underlain by the Sixtymile Formation, Cambrian Tapeats Sandstone is typically the lowest geologic unit, about thick, at its maximum, of the 5-member Tonto Group. It is famous for being the highly-resistant mostly-horizontal unit above the Great Unconformity expressed areally in the Grand Canyon of Arizona; also in other areas of Arizona and adjacent Nevada.Karlstrom, K.E., Mohr, M.T., Schmitz, M.D., Sundberg, F.A., Rowland, S.M., Blakey, R., Foster, J.R., Crossey, L.J., Dehler, C.M. and Hagadorn, J.W., 2020. ''Redefining the Tonto Group of Grand Canyon and recalibrating the Cambrian time scale''. ''Geology'', 48(5), pp. 425–430.Connors, T.B., Tweet, J.S., and Santucci, V.L., 2020. ''Stratigraphy of Grand Canyon National Park''. In: Santucci, V.L., Tweet, J.S., ed., pp. 54–74, ''Grand Canyon National Park: Centennial Paleontological Resource Inventory (Non-sensitive Version) ''. Natural Resource Report NPS/GRCA/NRR—2020/2103. National Park Service, Fort Collins, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbow Trout
The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coastal rainbow trout or Columbia River redband trout that usually returns to freshwater to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between , while lake-dwelling and anadromous forms may reach . Coloration varies widely based on subspecies, forms, and habitat. Adult fish are distinguished by a broad reddish stripe along the lateral line, from gills to the tail, which is most vivid in breeding males. Wild-caught and hatchery-reared forms of the species have been transplanted and introduced for food or sport in at least 45 countries and every continent e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunder River Trail
The Thunder River Trail is a hiking trail on the North Rim of the Grand Canyon National Park, located in the U.S. state of Arizona. Description History The upper portions of the trail were originally built in 1876 when rumors of placer gold led speculators to need a way into the area. Further trail work was performed beginning in 1925 under the US Forest Service and continued under the National Park Service with the final sections to Tapeats Creek completed in 1939. The trail was closed to all motorized vehicles effective July 1, 1962 due to safety concerns for both vehicle riders and hikers. References See also * The Grand Canyon * List of trails in Grand Canyon National Park The following is a list of hiking trails that are, in whole or part, within the established boundaries of Grand Canyon National Park, located in Coconino and Mohave counties in the U.S. state of Arizona. Management All pack and foot trails ... External links Grand Canyon Explorer {{Grand Can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damselflies
Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies, which constitute the other odonatan suborder, Anisoptera, but are smaller and have slimmer bodies. Most species fold the wings along the body when at rest, unlike dragonflies which hold the wings flat and away from the body. An ancient group, damselflies have existed since at least the Lower Permian, and are found on every continent except Antarctica. All damselflies are predatory insects; both nymphs and adults actively hunt and eat other insects. The nymphs are aquatic, with different species living in a variety of freshwater habitats including acidic bogs, ponds, lakes and rivers. The nymphs moult repeatedly, at the last moult climbing out of the water to undergo metamorphosis. The skin splits down the back, they emerge and inflate their wings and abdomen to gain their adult form. Their presence on a body of water indicates that it is relatively unpolluted, but t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isopods
Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax. Isopods have various feeding methods: some eat dead or decaying plant and animal matter, others are grazers, or filter feeders, a few are predators, and some are internal or external parasites, mostly of fish. Aquatic species mostly live on the seabed or bottom of freshwater bodies of water, but some taxa can swim for a short distance. Terrestrial forms move around by crawling and tend to be found in cool, moist places. Some species are able to roll themselves into a ball as a defense mechanism or to conserve moisture. There are over 10,000 identified species of isopod worldwide, with around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bladder Snails
Physidae, common name the bladder snails, is a monophyletic Taxonomy (biology), taxonomic family (biology), family of small air-breathing freshwater snails, Aquatic animal, aquatic pulmonate gastropod molluscs in the superfamily Lymnaeoidea .MolluscaBase eds. (2021). MolluscaBase. Physidae Fitzinger, 1833. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=160452 on 2021-06-26 Overview These fresh water snails are present in aquariums and ponds, as well as in wild areas. They are commonly referred to as tadpole snails or pouch snails. They eat algae, diatoms and detritus including dead leaves. The populations are regulated by the abundance of food and space. They are widespread, abundant, and tolerant to pollution. These snails are common in the North Temperate to Arctic Zones and throughout the Americas, in readily accessible habitats such as ditches, ponds, lakes, small streams, and rivers. The family has been recogni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riffle Beetles
Elmidae, commonly known as riffle beetles, is a family of beetles in the superfamily Byrrhoidea described by John Curtis in 1830. Both adults and larvae are usually aquatic, living under rocks in fast-flowing shallow areas of streams, such as riffles, feeding on algae and biofilms. There are more than 150 genera and 1,500 described species in Elmidae. The oldest record of the group is '' Cretohypsilara'' from the Cenomanian aged Burmese amber. See also * List of Elmidae genera These 152 genera belong to the family Elmidae, riffle beetles. There are at least 1,500 described species in Elmidae. Elmidae genera * '' Aesobia'' Jäch, 1982 * '' Amazonopsis'' Barr, 2018 * ''Ampumixis'' Sanderson, 1954 * '' Amrishelmis'' Makha ... References Further reading * * * * * External links * Polyphaga families {{Elmidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> University Of California Davis")
.jpg "Click for more on -> Isopods")
