نتایج جستجو برای: Hawksbill

تعداد نتایج: 239  

2009
Karen A. Bjorndal Alan B. Bolten

Hawksbill sea turtles, Eretmochelys imbricata, are closely associated with coral reef and other hard-bottom habitats. Seagrass pastures are peripheral habitats for Caribbean hawksbills. With the decline in quality and quantity of coral reefs, seagrass habitats may become more important for hawksbills. We use data from a 30-year mark-recapture study of hawksbills and green turtles, Chelonia myda...

2014
Maira C. Proietti Julia Reisser Luis F. Marins Maria A. Marcovaldi Luciano S. Soares Danielle S. Monteiro Sarath Wijeratne Charitha Pattiaratchi Eduardo R. Secchi

Hybridization between hawksbill (Eretmochelys imbricata) and loggerhead (Caretta caretta) breeding groups is unusually common in Bahia state, Brazil. Such hybridization is possible because hawksbill and loggerhead nesting activities overlap temporally and spatially along the coast of this state. Nevertheless, the destinations of their offspring are not yet known. This study is the first to iden...

2017
Javier Hernández-Fernández

The hawksbill sea turtle, Eretmochelys imbricata, is an endangered species of the Caribbean Colombian coast due to anthropic and natural factors that have decreased their population levels. Little is known about the genes that are involved in their immune system, sex determination, aging and others important functions. The data generated represents RNA sequencing and the first de-novo assembly ...

2014
Lucy A Hawkes Andrew McGowan Annette C Broderick Shannon Gore Damon Wheatley Jim White Matthew J Witt Brendan J Godley

Management of species of conservation concern requires knowledge of demographic parameters, such as rates of recruitment, survival, and growth. In the Caribbean, hawksbill turtles (Eretmochelys imbricata) have been historically exploited in huge numbers to satisfy trade in their shells and meat. In the present study, we estimated growth rate of juvenile hawksbill turtles around Anegada, British...

Journal: :The Journal of heredity 2016
Sarah M Vargas Michael P Jensen Simon Y W Ho Asghar Mobaraki Damien Broderick Jeanne A Mortimer Scott D Whiting Jeff Miller Robert I T Prince Ian P Bell Xavier Hoenner Colin J Limpus Fabrício R Santos Nancy N FitzSimmons

Hawksbill turtle (Eretmochelys imbricata) populations have experienced global decline because of a history of intense commercial exploitation for shell and stuffed taxidermied whole animals, and harvest for eggs and meat. Improved understanding of genetic diversity and phylogeography is needed to aid conservation. In this study, we analyzed the most geographically comprehensive sample of hawksb...

2016
Samantha Strindberg Robin A. Coleman Virginia R. Burns Perez Cathi L. Campbell Isaias Majil Janet Gibson

The decline of sea turtle populations in the Caribbean has led to intensive recovery efforts. In Belizean waters, hawksbill turtles are seemingly making a comeback. At Glover’s Reef Atoll particularly, juvenile hawksbill turtles are found in the fore-reef habitat. The population status and dynamics of this foraging aggregation were assessed to inform conservation management and to ascertain the...

2014
Maira C. Proietti Julia Reisser Luis Fernando Marins Clara Rodriguez-Zarate Maria A. Marcovaldi Danielle S. Monteiro Charitha Pattiaratchi Eduardo R. Secchi

Understanding the connections between sea turtle populations is fundamental for their effective conservation. Brazil hosts important hawksbill feeding areas, but few studies have focused on how they connect with nesting populations in the Atlantic. Here, we (1) characterized mitochondrial DNA control region haplotypes of immature hawksbills feeding along the coast of Brazil (five areas ranging ...

2012
Mark Allan Ditmer Seth Patrick Stapleton

Current understanding of the factors influencing hawksbill sea turtle (Eretmochelys imbricata) hatch success is disparate and based on relatively short-term studies or limited sample sizes. Because global populations of hawksbills are heavily depleted, evaluating the parameters that impact hatch success is important to their conservation and recovery. Here, we use data collected by the Jumby Ba...

Journal: :Zoological science 2013
Satoshi Takeshita Naoki Matsuda Seiji Kodama Keiji Suzuki Masami Watanabe

The hawksbill turtle is an ectotherm, whose sex is determined by temperature during embryonic development. This study aimed to determine whether embryonic hawksbill turtle cells respond differently to temperature than mammalian cells. Embryonic hawksbill turtle cells were established in culture, and thermal effects on these cells were investigated in vitro. Cells were maintained in Dulbecco's M...

2015
Richard J. Hamilton Tomas Bird Collin Gereniu John Pita Peter C. Ramohia Richard Walter Clara Goerlich Colin Limpus

The largest rookery for hawksbill turtles in the oceanic South Pacific is the Arnavon Islands, which are located in the Manning Strait between Isabel and Choiseul Province, Solomon Islands. The history of this rookery is one of overexploitation, conflict and violence. Throughout the 1800s Roviana headhunters from New Georgia repeatedly raided the Manning Strait to collect hawksbill shell which ...

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