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Alligator Lake (Philippines)
Tadlac Lake, also colloquially known as Alligator Lake, is a freshwater volcanic crater lake located in Barangay Tadlac, in the municipality of Los Baños of Laguna province in the Philippines. The lake-filled maar is located along the southern shore of Laguna de Bay, the largest lake in the country, with Alligator Lake protruding out of the shore of the larger lake. If not for its slightly-elevated crater rim, Alligator Lake would be wholly engulfed by Laguna de Bay. The crater lake is one of the maars of the Laguna Volcanic Field. It is listed as one of the inactive volcanos in the Philippines by the Philippine Institute of Volcanology and Seismology (PHIVOLCS). Tadlac lake is also notable for its history of annual Lake overturns, locally called ''langal.'' This phenomenon, rare elsewhere but usually occurring in Tadlac lake during the cold months of December to February, is the result of trapped carbon dioxide (CO2) erupting from the deep layers of the lake towards the sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Baños, Laguna
Los Baños, officially the Municipality of Los Baños ( tgl, Bayan ng Los Baños), colloquialy 'elbi' or simply LB, is a 1st class municipality in the province of Laguna, Philippines. According to the 2020 census, it has a population of 115,353 people. It has a total land area of 56.5 square kilometers and is bordered on the south and south-west by Mount Makiling, on the north by Laguna de Bay., on the north-west by Calamba and on the east by the town of Bay. The town is located southeast of Manila and is easily accessible via the South Luzon Expressway along with the Manila South Road segment of the Philippine Highway Network. The municipality lies on the northern slopes of the long dormant volcano Mount Makiling and is known among tourists for its hot spring resorts. Los Baños also hosts two constituent universities of the University of the Philippines System: the University of the Philippines Los Baños and University of the Philippines Open University, along with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligotrophic Lake
The Trophic State Index (TSI) is a classification system designed to rate water bodies based on the amount of biological productivity they sustain. Although the term "trophic index" is commonly applied to lakes, any surface water body may be indexed. The TSI of a water body is rated on a scale from zero to one hundred. Under the TSI scale, water bodies may be defined as: * oligotrophic (TSI 0–40, having the least amount of biological productivity, "good" water quality); * mesotrophic (TSI 40–60, having a moderate level of biological productivity, "fair" water quality); or * eutrophic to hypereutrophic (TSI 60–100, having the highest amount of biological productivity, "poor" water quality). The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a water body's TSI. Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water bodies, so increased concentrations tend to result in increased ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themeda
''Themeda'' is a genus of plants in the grass family native to Asia, Africa, Australia, and Papuasia. There are about 18Barkworth, M. E''Themeda''.Grass Manual. Flora of North America. to 26Potdar, G. G., et al. (2003)A new species of ''Themeda'' Forssk. (Poaceae) from India.''Kew Bulletin'' 58(1) 243-46. species, many of which are native to Southeast Asia. ; Species * ''Themeda anathera'' (Nees ex Steud.) Hack. - Afghanistan, Himalayas, Tibet * '' Themeda arguens'' (L.) Hack. - Christmas grass - Sri Lanka, Southeast Asia, Papuasia, northern Australia * ''Themeda arundinacea'' (Roxb.) A.Camus - Indochina, southern China, Indian Subcontinent, Malaysia, Indonesia * ''Themeda avenacea'' (F. Muell.) Maiden & Betche - oat kangaroo grass - Australia * ''Themeda caudata'' (Nees ex Hook. & Arn.) A.Camus - Indochina, southern China, Himalayas, Malaysia, Indonesia, Philippines * ''Themeda cymbaria'' Hack. - Tamil Nadu, Sri Lanka, Kerala * ''Themeda gigantea'' (Cav.) Hack. - Southeast Asia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeus A
Zeus or , , ; grc, Δῐός, ''Diós'', label=genitive Boeotian Aeolic and Laconian grc-dor, Δεύς, Deús ; grc, Δέος, ''Déos'', label=genitive el, Δίας, ''Días'' () is the sky and thunder god in ancient Greek religion, who rules as king of the gods on Mount Olympus. His name is cognate with the first element of his Roman equivalent Jupiter.''Larousse Desk Reference Encyclopedia'', The Book People, Haydock, 1995, p. 215. His mythology and powers are similar, though not identical, to those of Indo-European deities such as Jupiter, Perkūnas, Perun, Indra, Dyaus, and Zojz. Entry: "Dyaus" Zeus is the child of Cronus and Rhea, the youngest of his siblings to be born, though sometimes reckoned the eldest as the others required disgorging from Cronus's stomach. In most traditions, he is married to Hera, by whom he is usually said to have fathered Ares, Eileithyia, Hebe, and Hephaestus. At the oracle of Dodona, his consort was said to be Dione, by whom the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Hargrove
Thomas Rex Hargrove (3 March 1944 – 22 January 2011) was an American agricultural scientist and journalist, who was kidnapped in Colombia by FARC narco-guerillas in 1994. Throughout the 11 months he was captive, Hargrove secretly kept a diary which was published as ''Long March To Freedom: Tom Hargrove's Own Story of His Kidnapping by Colombian Narco-Guerrillas.'' The 2000 film ''Proof of Life'' starring Meg Ryan and Russell Crowe was heavily based on Hargrove and his ordeal. Education and career Hargrove obtained a double degree in agricultural science and journalism from Texas A&M University in 1966. He later earned a Ph.D. from Iowa State University. During the Vietnam War, he served as an officer in the United States Army and worked for the Military Assistance Command introducing the high-yield IR8 rice cultivar in Chương Thiện. Hargrove subsequently learned that the Viet Cong targeted him, but decided to let him live because of the good he was doing. After his milita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Rice Research Institute
The International Rice Research Institute (IRRI) is an international Agricultural science, agricultural research and training organization with its headquarters in Los Baños, Laguna, in the Philippines, and offices in seventeen countries. IRRI is known for its work in developing rice varieties that contributed to the Green Revolution in the 1960s which preempted the famine in Asia. The institute, established in 1960 aims to reduce poverty and hunger, improve the health of rice farmers and consumers, and ensure Sustainability, environmental sustainability of rice farming. It advances its mission through collaborative research, partnerships, and the strengthening of the national agricultural research and extension systems of the countries IRRI works in. IRRI is one of 15 agricultural research centers in the world that form the CGIAR Consortium of International Agricultural Research Centers, a global partnership of organizations engaged in research on food security. It is also th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Local Extinction
Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinctions. Local extinctions mark a change in the ecology of an area. In recent times, local extinction has sometimes been followed by a replacement of the species taken from other locations; wolf reintroduction is an example of this. The term "local extinction" is highly vernacular. The more proper biological term is ''extirpation''. Discussion Glaciation can lead to local extinction. This was the case during the Pleistocene glaciation event in North America. During this period, most of the native North American species of earthworm were killed in places covered by glaciation. This left them open for colonization by European earthworms brought over in soil from Europe. Species naturally become extirpated from islands over time. The num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocodilian
Crocodilia (or Crocodylia, both ) is an order of mostly large, predatory, semiaquatic reptiles, known as crocodilians. They first appeared 95 million years ago in the Late Cretaceous period ( Cenomanian stage) and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria. Members of the order's total group, the clade Pseudosuchia, appeared about 250 million years ago in the Early Triassic period, and diversified during the Mesozoic era. The order Crocodilia includes the true crocodiles (family Crocodylidae), the alligators and caimans (family Alligatoridae), and the gharial and false gharial (family Gavialidae). Although the term 'crocodiles' is sometimes used to refer to all of these, crocodilians is a less ambiguous vernacular term for members of this group. Large, solidly built, lizard-like reptiles, crocodilians have long flattened snouts, laterally compressed tails, and eyes, ears, and nostrils at the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Philippines (1521-1898)
Earliest hominin activity in the Philippine archipelago is dated back to at least 709,000 years ago. '' Homo luzonensis'', a species of archaic humans, was present on the island of Luzon at least 67,000 years ago. The earliest known anatomically modern human was from Tabon Caves in Palawan dating about 47,000 years. Negrito groups were the first inhabitants to settle in the prehistoric Philippines. By around 3000 BC, seafaring Austronesians, who form the majority of the current population, migrated southward from Taiwan. Scholars generally believe that these ethnic and social groups eventually developed into various settlements or polities with varying degrees of economic specialization, social stratification, and political organization. Some of these settlements (mostly those located on major river deltas) achieved such a scale of social complexity that some scholars believe they should be considered early states. This includes the predecessors of modern-day population center ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous (ecology)
In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is equivalent to the concept of indigenous or autochthonous species. Every wild organism (as opposed to a domesticated organism) is known as an introduced species within the regions where it was anthropogenically introduced. If an introduced species causes substantial ecological, environmental, and/or economic damage, it may be regarded more specifically as an invasive species. The notion of nativity is often a blurred concept, as it is a function of both time and political boundaries. Over long periods of time, local conditions and migratory patterns are constantly changing as tectonic plates move, join, and split. Natural climate change (which is much slower than human-caused climate change) changes sea level, ice cover, temperature, and r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Makiling
Mount Makiling (also known as Mount Maquiling), is an inactive stratovolcano located in the provinces of Laguna and Batangas on the island of Luzon, Philippines. The mountain rises to an elevation of above mean sea level and is the highest feature of the Laguna Volcanic Field. The volcano has no recorded historic eruption but volcanism is still evident through geothermal features like mud spring and hot springs. South of the mountain is the Makiling-Banahaw Geothermal Plant. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) classifies the volcano as " Inactive". Mount Makiling is a state-owned forest reserve administered by the University of the Philippines Los Baños. Prior to its transfer to the university, the mountain was the first national park of the Philippines. Mount Makiling National Park was established on February 23, 1933, by ''Proclamation No. 552''. However, it was decommissioned as a national park on June 20, 1963, by ''Republic Act no. 3523'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
