نتایج جستجو برای: hawksbill

تعداد نتایج: 239  

Journal: :Revista de biologia tropical 2003
Michelle T Schärer

Epibiotic organisms inhabiting non-nesting hawksbill sea turtles, Eretmochelys imbricata (Linnaeus, 1766), are described from Mona and Monito Islands, Puerto Rico. Epibiont samples from 105 turtles of shallow (< 40 m) water foraging habitats were collected and identified to the lowest possible taxon. This epibiotic assemblage consisting of at least 4 algal functional groups and 12 animal phyla ...

2018
Elizabeth Bevan Scott Whiting Tony Tucker Michael Guinea Andrew Raith Ryan Douglas

Drones are being increasingly used in innovative ways to enhance environmental research and conservation. Despite their widespread use for wildlife studies, there are few scientifically justified guidelines that provide minimum distances at which wildlife can be approached to minimize visual and auditory disturbance. These distances are essential to ensure that behavioral and survey data have n...

Journal: :Molecular ecology 2007
B W Bowen W S Grant Z Hillis-Starr D J Shaver K A Bjorndal A B Bolten A L Bass

Hawksbill turtles (Eretmochelys imbricata) migrate between nesting beaches and feeding habitats that are often associated with tropical reefs, but it is uncertain which nesting colonies supply which feeding habitats. To address this gap in hawksbill biology, we compile previously published and new mitochondrial DNA (mtDNA) haplotype data for 10 nesting colonies (N = 347) in the western Atlantic...

Journal: :Ecology and evolution 2016
Alexander R Gaos Rebecca L Lewison Michael J Liles Velkiss Gadea Eduardo Altamirano Ana V Henríquez Perla Torres José Urteaga Felipe Vallejo Andres Baquero Carolina LeMarie Juan Pablo Muñoz Jaime A Chaves Catherine E Hart Alejandro Peña de Niz Didiher Chácon Luis Fonseca Sarah Otterstrom Ingrid L Yañez Erin L LaCasella Amy Frey Michael P Jensen Peter H Dutton

Prior to 2008 and the discovery of several important hawksbill turtle (Eretmochelys imbricata) nesting colonies in the EP (Eastern Pacific), the species was considered virtually absent from the region. Research since that time has yielded new insights into EP hawksbills, salient among them being the use of mangrove estuaries for nesting. These recent revelations have raised interest in the gene...

2017
Alexander R Gaos Rebecca L Lewison Michael P Jensen Michael J Liles Ana Henriquez Sofia Chavarria Carlos Mario Pacheco Melissa Valle David Melero Velkiss Gadea Eduardo Altamirano Perla Torres Felipe Vallejo Cristina Miranda Carolina LeMarie Jesus Lucero Karen Oceguera Didiher Chácon Luis Fonseca Marino Abrego Jeffrey A Seminoff Eric E Flores Israel Llamas Rodrigo Donadi Bernardo Peña Juan Pablo Muñoz Daniela Alarcòn Ruales Jaime A Chaves Sarah Otterstrom Alan Zavala Catherine E Hart Rachel Brittain Joanna Alfaro-Shigueto Jeffrey Mangel Ingrid L Yañez Peter H Dutton

The complex processes involved with animal migration have long been a subject of biological interest, and broad-scale movement patterns of many marine turtle populations still remain unresolved. While it is widely accepted that once marine turtles reach sexual maturity they home to natal areas for nesting or reproduction, the role of philopatry to natal areas during other life stages has receiv...

Journal: :Endangered Species Research 2022

Hawksbill sea turtles Eretmochelys imbricata inhabiting the Hawaiian Islands are extremely rare and listed as endangered under US Endangered Species Act. The paucity of data on basic hawksbill ecology continues to hinder effective management species. We analyzed stranding collected between 1984 2018 gain insights into distribution, demography, conservation challenges facing hawksbills in Hawai‘...

2002
Yolanda M. León Karen A. Bjorndal

We evaluated selective feeding in hawksbill turtles Eretmochelys imbricata by comparing ingested prey species with their availability at 2 sites in the SW Dominican Republic. Hawksbills fed on 6 benthic species: 5 demosponges (Chondrilla nucula, Geodia neptuni, Myriastra kalitetilla, Spirastrella coccinea, and Tethya crypta) and 1 corallimorpharian (Ricordea florida). Hawksbills showed positive...

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