Browsing by Author "Poulin, Elie"
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- ItemAntarctic shallow suhtidal echinoderms: is the ecological success of broadcasters related to ice disturbance?(SPRINGER, 2007) Palma, Alvaro T.; Poulin, Elie; Silva, Marcelo G.; San Martin, Roberto B.; Munoz, Carlos A.; Diaz, Angie D.One characteristic pattern found in the marine Antarctic shallow environments is the unusually high proportion of species with protected and pelagic lecitotrophic development modes. However, species with planktotrophic development generally appear as the most conspicuous types of organisms in these environments. The Antarctic shallow benthos is considered as one of the most disturbed in the world, mainly due to the action of ice, thus one could hypothesize that such an environment should favor organisms with high dispersal capability. In order to test this general hypothesis, for two consecutive summers (2004-2005) and at two locations, we quantified the abundance and size distribution of most echinoderms present along bathymetric transects. Our results show the predominance of broadcasters (i.e., Sterechinus neumayeri and Odontaster validus) at a location where disturbances are common, while brooders (e.g., Abatus agassizii) only occurred at shallower depths of the least disturbed location. These results not only corroborate the hypothesis that local disturbance is an important factor generating these ecological patterns, but also suggest how ice-related disturbances could represent a major selecting agent behind the patterns of species diversity at an evolutionary scale in Antarctica.
- ItemChinstrap penguin population genetic structure: one or more populations along the Southern Ocean?(2018) Mura-Jornet, Isidora; Pimentel, Carolina; Dantas, Gisele P. M.; Petry, Maria Virginia; Gonzalez-Acuna, Daniel; Barbosa, Andres; Lowther, Andrew D.; Kovacs, Kit M.; Poulin, Elie; Vianna, Juliana
- ItemCryptic speciation in gentoo penguins is driven by geographic isolation and regional marine conditions: Unforeseen vulnerabilities to global change(2020) Pertierra, Luis R.; Segovia, Nicolás I.; Noll, Daly; Martínez, Pablo A.; Pliscoff, Patricio; Barbosa, Andrés; Vianna, Juliana; Aragón, Pedro; Raya Rey, Andrea; Pistorius, Pierre; Trathan, Phil; Polanowski, Andrea; Bonadonna, Francesco; Le Bohec, Célin; Bi, Ke; Wang-Claypool, Cynthia Y.; González Acuña, Daniel; Dantas, Gisele P. M.; Bowie, Rauri C. K.; Poulin, Elie
- ItemLineage divergence, local adaptation across a biogeographic break, and artificial transport, shape the genetic structure in the ascidian Pyura chilensis(2017) Segovia, Nicolás I.; Gallardo Escárate, Cristian; Poulin, Elie; Haye, Pilar A.
- ItemMitochondrial DNA variation and systematics of the guanaco (Lama guanicoe, Artiodactyla: Camelidae)(2008) Marín, Juan C.; Bonacic Salas, Cristián; Palma Vásquez, Ramón Eduardo; Poulin, Elie
- ItemOctodon degus kin and social structure(2016) Davis, Garrett T.; Vasquez, Rodrigo A.; Poulin, Elie; Oda, Esteban; Bazan Leon, Enrique A.; Ebensperger Pesce, Luis Alberto; Hayes, Loren D.
- ItemPhylogeny and biogeography of Muusoctopus (Cephalopoda: Enteroctopodidae)(2016) Ibáñez, Christian M.; Pardo Gandarillas, María Cecilia; Peña, Fabiola; Gleadall, Ian G.; Poulin, Elie; Sellanes, Javier
- ItemPhylogeographic Structure in Benthic Marine Invertebrates of the Southeast Pacific Coast of Chile with Differing Dispersal Potential(2014) Pardo Gandarillas, María Cecilia; Meynard, Andrés.; Faugeron, Sylvain Wielfrid; Poulin, Elie
- ItemSistemática, taxonomía y domesticación de alpacas y llamas: nueva evidencia cromosómica y molecular(2007) Marín, Juan C.; Bonacic Salas, Cristián; Palma Vásquez, Ramón Eduardo; Poulin, Elie
- ItemThorson's rule, life-history evolution, and diversification of benthic octopuses (Cephalopoda: Octopodoidea)(2018) Ibanez, Christian M.; Rezende Landaeta, Enrico; Sepulveda, Roger D.; Avaria-Llautureo, Jorge; Hernandez, Cristian E.; Sellanes, Javier; Poulin, Elie; Cecilia Pardo-Gandarillas, M.