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Multiple Paternity in a Reintroduced Population of the Orinoco Crocodile (Crocodylus intermedius) at the El Frio Biological Station, Venezuela

Lafferriere, Natalia A. Rossi (författare)
Columbia Univ, Dept Ecol Evolut & Environm Biol, New York, NY USA.;Amer Museum Nat Hist, Sackler Inst Comparat Genom, New York, NY 10024 USA.
Antelo, Rafael (författare)
Fdn Palmarito Casanare, Bogota, Colombia.;CSIC, Museo Nacl Ciencias Nat, Dept Biodiversidad & Biol Evolutiva, E-28006 Madrid, Spain.;Estn Biol Frio, Apure, Venezuela.
Alda, Fernando (författare)
CSIC, Museo Nacl Ciencias Nat, Dept Biodiversidad & Biol Evolutiva, E-28006 Madrid, Spain.;Louisiana State Univ, Dept Biol Sci, LSU Museum Nat Sci, Baton Rouge, LA 70803 USA.
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Martensson, Dick (författare)
Uppsala universitet,Evolutionsbiologi
Hailer, Frank (författare)
Cardiff Univ, Sch Biosci, Cardiff CF10 3AX, S Glam, Wales.;Smithsonian Inst, Natl Zool Pk, Ctr Conservat & Evolutionary Genet, Smithsonian Conservat Biol Inst, Washington, DC 20008 USA.
Castroviejo-Fisher, Santiago (författare)
Pontificia Univ Catolica Rio Grande Sul PUCRS, Lab Sistemat Vertebrados, Porto Alegre, RS, Brazil.
Ayarzagueena, Jose (författare)
Estn Biol Frio, Apure, Venezuela.
Ginsberg, Joshua R. (författare)
Columbia Univ, Dept Ecol Evolut & Environm Biol, New York, NY USA.;Cary Inst Ecosyst Studies, Millbrook, NY USA.
Castroviejo, Javier (författare)
Estn Biol Frio, Apure, Venezuela.;Asociac Amigos Donana, Seville, Spain.
Doadrio, Ignacio (författare)
CSIC, Museo Nacl Ciencias Nat, Dept Biodiversidad & Biol Evolutiva, E-28006 Madrid, Spain.
Vila, Carles (författare)
CSIC, EBD, Conservat & Evolutionary Genet Grp, E-41080 Seville, Spain.
Amato, George (författare)
Amer Museum Nat Hist, Sackler Inst Comparat Genom, New York, NY 10024 USA.
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Columbia Univ, Dept Ecol Evolut & Environm Biol, New York, NY USA;Amer Museum Nat Hist, Sackler Inst Comparat Genom, New York, NY 10024 USA. Fdn Palmarito Casanare, Bogota, Colombia.;CSIC, Museo Nacl Ciencias Nat, Dept Biodiversidad & Biol Evolutiva, E-28006 Madrid, Spain.;Estn Biol Frio, Apure, Venezuela. (creator_code:org_t)
2016-03-16
2016
Engelska.
Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 11:3
Relaterad länk:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
https://journals.plo...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • The success of a reintroduction program is determined by the ability of individuals to reproduce and thrive. Hence, an understanding of the mating system and breeding strategies of reintroduced species can be critical to the success, evaluation and effective management of reintroduction programs. As one of the most threatened crocodile species in the world, the Orinoco crocodile (Crocodylus intermedius) has been reduced to only a few wild populations in the Llanos of Venezuela and Colombia. One of these populations was founded by reintroduction at Cano Macanillal and La Ramera lagoon within the El Frio Biological Station, Venezuela. Twenty egg clutches of C. intermedius were collected at the El Frio Biological Station for incubation in the lab and release of juveniles after one year. Analyzing 17 polymorphic microsatellite loci from 335 hatchlings we found multiple paternity in C. intermedius, with half of the 20 clutches fathered by two or three males. Sixteen mothers and 14 fathers were inferred by reconstruction of multilocus parental genotypes. Our findings showed skewed paternal contributions to multiple-sired clutches in four of the clutches (40%), leading to an overall unequal contribution of offspring among fathers with six of the 14 inferred males fathering 90% of the total offspring, and three of those six males fathering more than 70% of the total offspring. Our results provide the first evidence of multiple paternity occurring in the Orinoco crocodile and confirm the success of reintroduction efforts of this critically endangered species in the El Frio Biological Station, Venezuela.

Ämnesord

NATURVETENSKAP  -- Biologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences (hsv//eng)

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