Examinando por Autor "Flores, Marcelo"

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    Estado del conocimiento de los piqueros pantropicales (Sulidae) en las islas oceánicas chilenas y primer registro de piquero café Sula leucogaster en Isla de Pascua
    (Universidad de Valparaíso. Facultad de Ciencias del Mar, 2013-12) Flores, Marcelo; Lazo, Pedro; Hucke-Gaete, Rodrigo
    We present a review of the current state of knowledge of the Pantropical Boobies, namely: the Red-footed Booby (Sula sula), the Brown Booby (S. leucogaster) and the Masked Booby (S. dactylatra) throughout the Chilean oceanic islands. The lack of information on this group means that it is not possible to accurately determine the current status of these species in Chilean waters. It is thus imperative to increase monitoring effort and develop research projects in order to fill the knowledge gaps for these species in particular and insular avifauna in general. Finally, the first documented record of Brown Booby in Chile is reported.
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    First confirmed report of Hawksbill Sea Turtle Eretmochelys imbricata in nearshore waters of Easter Island (Rapa Nui)
    (Universidad de Valparaíso. Facultad de Ciencias del Mar, 2015) Álvarez-Varas, Rocío; Flores, Marcelo; Demangel, Diego; García, Michel; Sallaberry-Pincheira, Nicole
    The hawksbill turtle (Eretmochelys imbricata; Critically Endangered) has a circumtropical distribution. In Polynesia it inhabits the waters of a great number of islands; however, up to date there are no official records for Easter Island. We document the first report of E. imbricata in Easter Island and Chile based on underwater photographs and examination of one individual. The confirmation of the presence of hawksbills extends the known distribution range for the species, increases the number of sea turtle species recorded for Chile, and highlights the need for further research on potential threats to the species and the importance of Rapa Nui as developmental and foraging habitat for hawksbills.
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    Marine mammals of Easter Island (Rapa Nui) and Salas y Gómez Island (Motu Motiro Hiva), Chile: a review and new records
    (Pontificia Universidad Católica de Valparaíso Facultad de Recursos Naturales Escuela de Ciencias del Mar, 2014-10) Hucke-Gaete, Rodrigo; Aguayo-Lobo, Anelio; Yancovic-Pakarati, Sebastián; Flores, Marcelo
    The Chilean oceanic islands Easter Island (Rapa Nui) and Salas y Gómez Island (Motu Motiro Hiva) have received little attention with regards to basic marine mammal investigations. Here we review and update available information on the status of marine mammals in this area from different sources, including published accounts, local interviews and two recent expeditions. We also provide detailed accounts for each confirmed family or species, including historical data from published archaeological studies and whalers' logbooks from the 18th to the 20th centuries. Results indicate that a total of five marine mammal families (Balaenopteridae, Physeteridae, Ziphiidae, Delphinidae and Phocidae) have been confirmed within the study area, representing two mammalian orders (Cetartiodactyla and Carnivora). Within these, twelve species are known to occur: blue whale (Balaenoptera musculus), unidentified minke whale (Balaenoptera bonaerensis or B. acutorostrata), humpback whale (Megaptera novaeangliae), sperm whale (Physeter macrocephalus), Cuvier's beaked whale (Ziphius cavirostris), Blainville's beaked whale (Mesoplodon densirostris), false killer whale (Pseudorca crassidens), unidentified pilot whale (Globicephala sp.), bottlenose dolphin (Tursiops truncatus), common dolphin (Delphinus sp.), southern elephant seal (Mirounga leonina) and leopard seal (Hydrurga leptonyx). We discuss the implications of some of most noteworthy records and make a plea for further studies to improve our knowledge of these top predators in one of the most isolated places in the world