The Nicoya region of Costa Rica: a high longevity island for elderly males
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The Nicoya region of Costa Rica: a high longevity island for elderly males.
Reliable data show that the Nicoyan region of Costa Rica is a hot spot of high longevity. A survival follow-up of 16,300 elderly Costa Ricans estimated a Nicoya death rate ratio (DRR) for males 1990-2011 of 0.80 (0.69-0.93 CI). For a 60-year-old Nicoyan male, the probability of becoming centenarian is seven times that of a Japanese male, and his life expectancy is 2.2 years greater. This Nicoya...
متن کاملEvidence for serpentinization of the forearc mantle wedge along the Nicoya Peninsula, Costa Rica
[1] Characterizing the hydration state of the forearc mantle wedge yields valuable information on frictional stability at the downdip edge of subduction megathrusts. Simultaneous inversion of Pand S-wave arrival times collected as part of the Costa Rica Seismogenic Zone Experiment yields 1D and 3D Pand S-wave velocity models (VP and VS) for the Nicoya Peninsula segment of the Middle America Tre...
متن کاملThe effects of trawling on the benthic fauna of the Gulf of Nicoya, Costa Rica.
Four van Veen grab replicates where collected to sample macrofauna (organism retained on a 500 micron mesh sieve) at four stations in the Gulf of Nicoya, during October 24, 1997, January 16 and April 30, 1998. This information was used to search for any effects of trawling on the benthic fauna. Two stations where located in a trawled area, and two stations where in a protected area. Diversity (...
متن کاملOn Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica.
The cephalochordates are represented by the lancelets, of which species of the genus Branchiostoma are the best known. In recent years, these organisms have been the center of activity of studies focusing on the phylogenetic relationships of the chordates. In 1980, a survey of the benthos at 48 stations in the Gulf of Nicoya estuary, Pacific coast of Costa Rica, yielded 265 specimens of the lan...
متن کاملThe Ant (hymenoptera: Formicidae) Fauna of Cocos Island, Costa Rica
Cocos Island, Costa Rica is a 24-square kilometer volcanic island in the tropical eastern Pacific Ocean, located approximately 480 kilometers from the mainland. Despite its biogeographic significance, much of the entomofauna have not been systematically surveyed. A detailed survey of the ant (Hymenoptera: Formicidae) fauna of this island was conducted over a three-week period. The results sugge...
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ژورنال
عنوان ژورنال: Vienna Yearbook of Population Research
سال: 2014
ISSN: 1728-4414,1728-5305
DOI: 10.1553/populationyearbook2013s109