least tern population

Our smallest tern. Sources and Additional Information. Least Tern: Population name: athalassos: Breeding range: Inland rivers EC North America: Non-breeding range: Coasts Colombia - N Brazil : Red List Category: Least Concern: Ramsar regions: Neotropics North America Notes: Population added in WPE3. Inland, we worked with diverse government partners to improve Interior Least Tern habitat and monitoring. The Least Tern is a priority species for ABC. Least Tern Species Description Identification At 8–9 inches in length and slightly smaller than an American robin, the least tern is the smallest tern of North America. Nest site selection in Least Terns (Sterna antillarum) in … Least tern populations seem to be slowly rising, although they are still listed as 'threatened' by the state. Using available information on dispersal of least terns, Lott et al. The largest ethnic group in the region are the Macedonians. Least terns are listed as a Species of Management Concern on the East Coast by the U.S. Once diminished by hunting for feathers for hats and hurt by the damming of major rivers like the Missouri, the interior least tern population has increased tenfold since 1985, to more than 18,000. Its downlisting and delisting criteria incorporate the total population size, number of colonies, geographic distribution, population viability, and management status. The California least tern (Sternula antillarum browni)(tern) once nested in large, loose colonies on beaches throughout Southern California. They were listed as Maine’s first endangered species in 1982. They do form a superspecies (including Saunder's Tern, Yellow-billed Tern and Peruvian Tern). Least terns that occur in Oklahoma are part of what is known as the “interior” population, which is considered distinct from the least terns that live throughout the coastal and estuarine habitats along the Gulf of Mexico and East Coast. Often seen flying low over the water, with quick deep wingbeats and shrill cries. Species. Until protective legislation was passed in 1918, the least tern population was almost completely lost due to hunting for the millinery trade. In the early 1980s, the population of the subspecies S. a. antillarum was estimated at 21,300 pairs along the east coast of the U.S., but survey methods were not comprehensive and did not include a significant rooftop-nesting The Little Tern population has declined or become extinct in many European countries, and former breeding places on large rivers like the Danube, Elbe and Rhine ceased. The inland population of the Least Tern is classified as an Endangered species. They catch their prey in their bills. Population. (2013, pp. Introduction. A state management plan was written for least terns in Maine in 1993 and revised in 2007. Journal of Coastal Research 5:801-811. The western population, the California least tern, was listed as an endangered species in 1972 with a population of about 600 pairs. Close Burger 1989, Burger, J. and M. Gochfeld. Populations are endangered in many areas because of human impacts on nesting areas, especially competition for use of beaches. The interior population of the least tern is listed as endangered under State laws in all of the States named above except Colorado, Louisiana, Mississippi, and Mon-tana (Sidle and Harrison 1990). To be downlisted to "threatened" status, the tern must have at least 1,200 breeding pairs distributed in at least 15 "secure" management areas. The last method is by all means the most popular method used in the literature and is therefore the basis for this text. Three‐year running average fledge ratios of 1.13 fledglings/pair for piping plovers and 0.70 fledglings/pair for least terns have been proposed as necessary to maintain a stable to growing piping plover and least tern populations in the AHR (Lutey, 2002). Nesting Least Terns quickly became a priority on my birding bucket list. Least Tern: Population name: antillarum: Breeding range: W Atlantic Coast S of Maine, Gulf of Mexico, Caribbean: Non-breeding range: Coasts Colombia - N Brazil: Red List Category: Least Concern: Ramsar regions: Neotropics North America Notes The loss of inland populations has been even more severe, since due to dams, river regulation and sediment extraction it has lost most of its former habitats. The Largest Population: California 39,937,489. At many nesting areas, signs warn people against entering colonies, many of which are roped off during breeding season. ; Eastern Africa population is equivalent to 5.71% of the total world population. The current population of Eastern Africa is 449,827,859 as of Tuesday, November 24, 2020, based on the latest United Nations estimates. As recently as 1985, the breeding population for all Least Tern nesting sites in the entire United States had dropped as low as 3,000 pairs. (Fig.1). Unlock thousands of full-length species accounts and hundreds of bird family overviews when you subscribe to Birds of the World. Least Tern populations in coastal New Jersey: monitoring and management of a regionally-endangered species. The current population of the Eastern Statistical Region is 181,858 citizens or 9.0% of the total population of the Republic of North Macedonia, according to the last population census in 2002. Taxonomic status of this form uncertain. We assessed interior least tern population sta-tus by comparing numbers and distribution of least terns with objectives set forth in the Re-covery Plan (USFWS 1990) and estimating trends in least tern numbers for local breeding areas (e.g., lower Platte River, Nebraska), drain-ages (e.g., upper Missouri River), and the entire interior population. The California least tern breeding population averaged about 600 pairs between 1973 and 1975. Little Tern Sterna albifrons occuring in Europe, Asia, Africa and Australia and Least Tern Sterna antillarum from the Americas. The western population, the least tern is estimated at 65,000 – 70,000 individuals ( BirdLife International ). 67 per Km 2 ( 173 people per mi 2 ) 's tern, was listed 'threatened! Hundreds of bird family overviews when you subscribe to birds of the population density Eastern... Several months ago to photograph the birds wintering in the literature and is therefore the basis for this.! 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