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| olive ridley | |
|---|---|
| Name | Olive ridley sea turtle |
| Status | Vulnerable |
| Status system | IUCN3.1 |
| Genus | Lepidochelys |
| Species | olivacea |
| Authority | (Eschscholtz, 1829) |
olive ridley
The olive ridley is a species of sea turtle notable for synchronized mass nesting events and widespread tropical distribution. It occupies coastal and pelagic environments and is subject to international conservation measures and regional management by governments and organizations. Renowned in scientific literature and cultural narratives, it features in conservation programs, fisheries regulations, and ecotourism initiatives.
Taxonomic treatments and nomenclatural history involve figures and institutions such as Johann Friedrich von Eschscholtz, Georges Cuvier, Charles Darwin, Linnaeus, International Commission on Zoological Nomenclature, Smithsonian Institution, Natural History Museum, London, American Museum of Natural History, Museum für Naturkunde, Berlin, Royal Society, Zoological Society of London, California Academy of Sciences, Academia Brasileira de Ciências, Universidad Nacional Autónoma de México, Centre National de la Recherche Scientifique, Universität Kiel, University of Queensland, Stanford University, University of Oxford, University of Cambridge, Harvard University, Yale University, University of California, Santa Cruz, Monterey Bay Aquarium Research Institute, Scripps Institution of Oceanography, Woods Hole Oceanographic Institution, National Oceanic and Atmospheric Administration, Convention on International Trade in Endangered Species of Wild Fauna and Flora, International Union for Conservation of Nature, Convention on Migratory Species, United Nations Environment Programme, World Wildlife Fund, Conservation International, Wildlife Conservation Society, IUCN Species Survival Commission, Society for Marine Mammalogy, Royal Society of Biology, Zoological Society of India, Kerala Forest Department, Mexican National Commission of Natural Protected Areas, Brazilian Institute of Environment and Renewable Natural Resources, Ministry of Environment and Forests (India). The specific epithet olivacea refers to coloration noted by early taxonomists; etymologists and historical illustrators at institutions such as British Museum and L’Académie des Sciences contributed to the species’ early descriptions.
Morphological studies and field guides from National Geographic Society, Cornell Lab of Ornithology, Encyclopaedia Britannica, Smithsonian Institution Press, Oxford University Press, Cambridge University Press, Springer Nature, Elsevier, Wiley-Blackwell, CRC Press compare carapace features, size, and coloration with other taxa such as green sea turtle, hawksbill sea turtle, loggerhead sea turtle, leatherback sea turtle, flatback sea turtle, Kemp's ridley sea turtle, olive ridley congeners documented in regional guides produced by Australian Museum, New South Wales Department of Primary Industries, Florida Fish and Wildlife Conservation Commission, Texas Parks and Wildlife Department, Gulf of Mexico Fishery Management Council, Caribbean Conservation Corporation. Diagnostic characters include a rounded carapace, uniform olive-gray to greenish integument, and head and limb scale patterns described in monographs by Reptilia specialists, museum catalogs, and technical reports from NOAA Fisheries. Comparative anatomy papers by researchers at University of Miami, James Cook University, University of São Paulo address sexual dimorphism, morphometrics, and growth rates.
Range maps and regional faunal accounts by agencies like United States Fish and Wildlife Service, Mexican Secretariat of Environment and Natural Resources, Ministry of Environment of Costa Rica, MINAE (Costa Rica), National Autonomous University of Honduras, Instituto Nacional de Pesca (Mexico), Instituto Nacional de Pesquisas da Amazônia show presence across tropical and subtropical coastal waters of the Atlantic Ocean, Pacific Ocean, and Indian Ocean adjacent to nations such as India, Sri Lanka, Pakistan, Bangladesh, Myanmar, Thailand, Malaysia, Indonesia, Philippines, Vietnam, China, Japan, Mexico, Costa Rica, Nicaragua, Panama, Colombia, Ecuador, Peru, Brazil, Gabon, Ghana, Senegal, Sierra Leone, Gambia, Mauritania. Habitats include sandy nesting beaches, nearshore foraging grounds, coral reef margins documented by Coral Reef Alliance, World Resources Institute, and pelagic zones monitored by tagging programs at Wildlife Conservation Society and Marine Megafauna Foundation.
Behavioral ecology literature from University of Exeter, Durrell Institute of Conservation and Ecology, Monterey Bay Aquarium, Galápagos National Park Service covers migratory routes, feeding ecology, and predator–prey interactions involving species such as sharks, crocodiles, giant manta ray, groupers, epipelagic fish recorded by tagging and telemetry projects supported by COSTCO Foundation and The Pew Charitable Trusts. Studies examine diel patterns, thermoregulation, and foraging on jellyfish, crustaceans, and mollusks with contributions from Scripps Institution of Oceanography and Duke University Marine Lab. Mass nesting phenomena known from sites managed by Mexican National Commission of Protected Natural Areas, Olive Ridley Project, Sea Turtle Conservancy illustrate synchronized arribada behavior studied in ecological journals affiliated with Royal Society Publishing and American Association for the Advancement of Science.
Reproductive biology research by teams at University of California, Berkeley, University of Florida, University of the Philippines, Universidade Federal do Ceará describes clutch size, embryonic development, temperature-dependent sex determination (TSD) documented alongside studies on climate change by Intergovernmental Panel on Climate Change, United Nations Framework Convention on Climate Change, and nesting phenology analyzed in collaborations with BirdLife International and The Ocean Conservancy. Hatchling dispersal, recruitment, and juvenile pelagic stages are tracked via satellite tagging projects coordinated by Tagging of Pacific Predators (TOPP), Global Ocean Observing System, and research vessels operated by Rosenstiel School of Marine and Atmospheric Science.
Threat assessments and policy responses involve IUCN, CITES, Convention on Biological Diversity, United Nations, National Marine Fisheries Service, European Union, African Union, Association of Southeast Asian Nations, Brazilian Institute of Environment and Renewable Natural Resources, Ministry of Environment and Forests (India), Mexican Secretariat of Environment and Natural Resources, Monterey Bay Aquarium, WWF, Conservation International, Ocean Conservancy, Wildlife Conservation Society, Sea Turtle Conservancy, Olive Ridley Project, Society for Conservation Biology. Major threats documented include fisheries bycatch in trawl and gillnet fleets monitored by Food and Agriculture Organization, coastal development projects approved by national planning departments, pollution events recorded by International Maritime Organization, plastic ingestion studies by United Nations Environment Programme, light pollution mitigation promoted by Dark Sky Association and regional authorities. Conservation measures include protected area designation under Ramsar Convention, community-based programs led by local NGOs and national enforcement by maritime and coastal agencies.
Human dimensions research involves ethnographic and economic studies conducted by University of Oxford, University of Cambridge, London School of Economics, Jawaharlal Nehru University, National Autonomous University of Mexico, University of the West Indies, and cultural heritage institutions like Museo Nacional de Costa Rica, National Museum of India, British Museum, Museo Nacional de Antropología (Mexico). Cultural practices, festivals, artisanal fisheries, ecotourism enterprises, and legal frameworks intersect with conservation through initiatives by UNESCO, World Bank, Inter-American Development Bank, and bilateral aid agencies. High-profile legal cases and advocacy campaigns have involved organizations such as Greenpeace, Friends of the Earth, Environmental Defense Fund, Center for Biological Diversity, and regional court systems.