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Lake Barco
Lake Barco is a lake in Putnam County, Florida, United States. It is within the Ordway-Swisher Biological Station of the Institute of Food and Agricultural Sciences. It is roughly circular, about in diameter. The nearest settlement is Melrose, Florida, about to the northwest. Characteristics Lake Barco is a sinkhole lake, typical of the region, where unconsolidated deposits on the surface have slumped into the highly soluble limestone of the upper Floridan aquifer. The organic-rich sediments of the lake bottom lie on an unconfined aquifer made up mostly of sands. Below this are the unconsolidated clays and sands of the Hawthorn Group, through which water can penetrate, and below this the Ocala Limestone of the upper Floridan aquifer. Groundwater monitoring wells have been placed around Lake Barco and nearby Lake Suggs to study the hydrology of the area. The lake has a mean annual temperature of and median rainfall of . It is recharged throughout the year. The lake is fed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Putnam County, Florida
Putnam County is a county located in the northern part of the state of Florida. As of the 2020 census, the population was 73,321. Its county seat is Palatka. Putnam County comprises the Palatka, Florida Micropolitan Statistical Area, which is included in the Jacksonville— Kingsland—Palatka, Florida—Georgia Combined Statistical Area. The county is centrally located between Jacksonville, Gainesville, St. Augustine, and Daytona Beach. History Putnam County was created in 1849. It was Florida's 28th county created from parts of St. Johns, Alachua, Orange, Duval, and Marion counties. The county was named for Benjamin A. Putnam, who was an officer in the First Seminole War, a lawyer, Florida legislator, and the first president of the Florida Historical Society. The Putnam County Historical Society has determined that Benjamin A. Putnam is the grandson of Israel Putnam, for whom other counties and places in the United States are named. Benjamin A. Putnam died in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrology
Hydrology () is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and drainage basin sustainability. A practitioner of hydrology is called a hydrologist. Hydrologists are scientists studying earth science, earth or environmental science, civil engineering, civil or environmental engineering, and physical geography. Using various analytical methods and scientific techniques, they collect and analyze data to help solve water related problems such as Environmentalism, environmental preservation, natural disasters, and Water resource management, water management. Hydrology subdivides into surface water hydrology, groundwater hydrology (hydrogeology), and marine hydrology. Domains of hydrology include hydrometeorology, surface-water hydrology, surface hydrology, hydrogeology, drainage basin, drainage-basin management, and water quality. Oceanography and meteorology are not included beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zooplankton
Zooplankton are the heterotrophic component of the planktonic community (the " zoo-" prefix comes from ), having to consume other organisms to thrive. Plankton are aquatic organisms that are unable to swim effectively against currents. Consequently, they drift or are carried along by currents in the ocean, or by currents in seas, lakes or rivers. Zooplankton can be contrasted with phytoplankton (cyanobacteria and microalgae), which are the plant-like component of the plankton community (the " phyto-" prefix comes from , although taxonomically ''not'' plants). Zooplankton are heterotrophic (other-feeding), whereas phytoplankton are autotrophic (self-feeding), often generating biological energy and macromolecules through chlorophyllic carbon fixation using sunlightin other words, zooplankton cannot manufacture their own food, while phytoplankton can. As a result, zooplankton must acquire nutrients by feeding on other organisms such as phytoplankton, which are generally smaller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macroinvertebrates
Invertebrates are animals that neither develop nor retain a vertebral column (commonly known as a ''spine'' or ''backbone''), which evolved from the notochord. It is a paraphyletic grouping including all animals excluding the chordate subphylum Vertebrata, i.e. vertebrates. Well-known phyla of invertebrates include arthropods, molluscs, annelids, echinoderms, flatworms, cnidarians, and sponges. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and diversity of species than the entire subphylum of Vertebrata. Invertebrates vary widely in size, from 10 μm (0.0004 in) myxozoans to the 9–10 m (30–33 ft) colossal squid. Some so-called invertebrates, such as the Tunicata and Cephalochordata, are actually sister chordate subphyla to Vertebrata, being more closely related to vertebrates than to other invertebrates. This makes the "invertebrates" paraphyletic, so the term has no sign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Ecological Observatory Network
National Ecological Observatory Network (NEON) is a facility program operated by Battelle Memorial Institute and funded by the National Science Foundation. In full operation since 2019, NEON gathers and provides long-term, standardized data on ecological responses of the biosphere to changes in land use and climate, and on feedback with the geosphere, hydrosphere, and atmosphere. NEON is a continental-scale research platform for understanding how and why our ecosystems are changing. Vision and mission The vision for NEON is to guide global understanding and decisions in a changing environment with scientific information about continental-scale ecology through integrated observations, experiments and forecasts. NEON's mission is to design, implement and operate the first and foremost integrated continental‐scale scientific infrastructure to enable research, discovery and education about ecological change. NEON collects ecological and climatic observations across the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gopher Frog
The gopher frog (''Lithobates capito'') is a species of frog in the family Ranidae, endemic to the south-eastern United States. It primarily inhabits the threatened sandhill communities, flatwoods, and scrub in the Atlantic coastal plain, where it is usually found near ponds. Subspecies Its two subspecies include the Carolina gopher frog (''L. c. capito''), and Florida gopher frog (''L. c. aesopus''). The dusky gopher frog ''(L. sevosus)'', also known as the Mississippi gopher frog, had previously been considered a subspecies, but was elevated to species status in 2001. Range Gopher frogs occur along the Atlantic seaboard of the United States from southern North Carolina to peninsular Florida. The gopher frog's range extends west along the Gulf Coast to the Tombigbee River in Alabama. The Florida gopher frog is restricted to peninsular Florida. Today, gopher frogs' distribution is patchy, owing greatly to loss of longleaf pine forest communities. Ecology Within the flatw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfate
The sulfate or sulphate ion is a polyatomic anion with the empirical formula . Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many are prepared from that acid. Spelling "Sulfate" is the spelling recommended by IUPAC, but "sulphate" was traditionally used in British English. Structure The sulfate anion consists of a central sulfur atom surrounded by four equivalent oxygen atoms in a tetrahedral arrangement. The symmetry of the isolated anion is the same as that of methane. The sulfur atom is in the +6 oxidation state while the four oxygen atoms are each in the −2 state. The sulfate ion carries an overall charge of −2 and it is the conjugate base of the bisulfate (or hydrogensulfate) ion, , which is in turn the conjugate base of , sulfuric acid. Organic sulfate esters, such as dimethyl sulfate, are covalent compounds and esters of sulfuric acid. The tetrahedral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deuterium
Deuterium (hydrogen-2, symbol H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen; the other is protium, or hydrogen-1, H. The deuterium nucleus (deuteron) contains one proton and one neutron, whereas the far more common H has no neutrons. The name ''deuterium'' comes from Greek '' deuteros'', meaning "second". American chemist Harold Urey discovered deuterium in 1931. Urey and others produced samples of heavy water in which the H had been highly concentrated. The discovery of deuterium won Urey a Nobel Prize in 1934. Nearly all deuterium found in nature was synthesized in the Big Bang 13.8 billion years ago, forming the primordial ratio of H to H (~26 deuterium nuclei per 10 hydrogen nuclei). Deuterium is subsequently produced by the slow stellar proton–proton chain, but rapidly destroyed by exothermic fusion reactions. The deuterium–deuterium reaction has the second-lowest energy threshold, and is the most astrophysically acce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Suggs
Lake Suggs, alternatively called Suggs Lake, is a lake in Putnam County, Florida. It is within the Ordway-Swisher Biological Station of the Institute of Food and Agricultural Sciences. It is a marshy seepage lake and considered a baygall. The chemical concentrations of the lake have been studied since the 1970s. Groundwater monitoring wells have been placed around Lake Suggs and nearby Lake Barco to study the hydrology of the area. Characteristics Lake Suggs is a small mesotrophic lake only 0.73 km2 in size. There is little to no surface inflow or outflow, however, there is significant subsurface interaction with the groundwater aquifer. The lake is relatively shallow, with a mean depth of 2.5 m. The lake has a high dissolved organic carbon content, and is acidic as a result. It has a pH of 4.74. Ecology The lake is surrounded by cypress swamps and hardwood forests. It is densely populated with amphibians, including salamanders of the genera '' Siren'', ''Amphiuma'', and '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocala Limestone
The Ocala Limestone is a late Eocene geologic formation of exposed limestones near Ocala, Marion County, Florida. Age Period: Paleogene Epoch: Late Eocene Faunal stage: Late Clarkforkian through early Orellan Absolute Age: ~55.8 to ~33.9 mya, calculates to a period of approximately Location The Ocala Limestone is at or near the surface within the Ocala Karst District located in west-central to the northwestern part of the peninsula. It is also within the Dougherty Plain District in the north-central panhandle where it easily forms karsts. These karsts often have several feet (meters) of relief which dramatically influence the topography of the Ocala Karst District and the Dougherty Plain District. The area is abundant with disappearing streams and springs. Composition Formerly a geologic group, Ocala Limestone was downgraded to formation status by T.M. Scott in 1991.Scott, T.M, Lloyd, J.M, and Maddox, G., A Geological overview of Florida: Florida's Ground Water Quality Monit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawthorn Group
The Hawthorn Group (also Hawthorne Group, previously called Hawthorn(e) Formation) is a stratigraphic unit of Miocene age in South Carolina, Georgia, and Florida, in the United States. It is known for its phosphate rock resources, and for its rich assemblages of Neogene vertebrate fossils. The Waldo Formation was described by L.C. Johnson of the United States Geological Survey in 1887. It was later included in the Hawthorne Beds, named for Hawthorne, Florida, where its phosphate-rich rock was quarried and processed for use as fertilizer. The Hawthrone Beds were later renamed the Hawthorne Formation. Late in the 20th century the Hawthorn Formation was redesignated as the Hawthorn Group consisting of several formations. The Hawthorn Group is the widest spread stratigraphic unit of Miocene age in the southeastern United States, making up almost the entire thickness of Miocene strata over the area in which it occurs. The Hawthorn group has complex bedding, primarily consisting of cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
