Search Results - "Sepúlveda, Roger D"

Thorson’s rule, life-history evolution, and diversification of benthic octopuses (Cephalopoda: Octopodoidea) by Ibáñez, Christian M., Rezende, Enrico L., Sepúlveda, Roger D., Avaria-Llautureo, Jorge, Hernández, Cristián E., Sellanes, Javier, Poulin, Elie, Pardo-Gandarillas, M. Cecilia

“…Here, we evaluate the so-called Thorson’s rule, which posits that direct-development and larger eggs are favored toward the poles in marine organisms and whose…”
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Masculinized females produce heavier offspring in a group living rodent by Correa, Loreto A., León, Cecilia, Ramírez-Estrada, Juan, Soto-Gamboa, Mauricio, Sepúlveda, Roger D., Ebensperger, Luis A.

“…1. Alternative morphotypes have been reported less frequently in females than in males. An exception to this rule is the gradient of phenotypical…”
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Differential ecological responses to environmental stress in the life history phases of the isomorphic red alga Gracilaria chilensis (Rhodophyta) by Guillemin, Marie-Laure, Sepúlveda, Roger D, Correa, Juan A, Destombe, Christophe

“…In order to better understand the alternation of generations that characterizes haploid–diploid life cycles, we assessed the existence of ecological…”
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The biology and ecology of the jumbo squid Dosidicus gigas (Cephalopoda) in Chilean waters: a review by Ibáñez, Christian M., Sepúlveda, Roger D., Ulloa, Patricio, Keyl, Friedemann, Pardo-Gandarillas, M. Cecilia

“…The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the…”
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Positive and negative effects of mesograzers on early‐colonizing species in an intertidal rocky‐shore community by Tejada‐Martinez, Daniela, López, Daniela N., Bonta, César C., Sepúlveda, Roger D., Valdivia, Nelson

“…The ecological consequences of human‐driven overexploitation and loss of keystone consumers are still unclear. In intertidal rocky shores over the world, the…”
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Morphological analysis of two sympatric ecotypes and predator-induced phenotypic plasticity in Acanthina monodon (Gastropoda: Muricidae) by Sepúlveda, Roger D, Jara, Carlos G, Gallardo, Carlos S

“…Some marine gastropod species are characterized by having marked polymorphism in the shape, colour and thickness of their shells. This variation can be induced…”
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Morphologic Variation in Aegla Leach (Decapoda: Reptantia: Aeglidae) from Central-Southern Chile: Interspecific Differences, Sexual Dimorphism, and Spatial Segregation by Barría, Erwin M, Sepúlveda, Roger D, Jara, Carlos G

“…How do certain characteristics of organisms, such as sex or species, and certain ecological factors, such as interaction with congeneric individuals, influence…”
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Localised Effects of a Mega-Disturbance: Spatiotemporal Responses of Intertidal Sandy Shore Communities to the 2010 Chilean Earthquake by Sepúlveda, Roger D, Valdivia, Nelson

“…Determining the effects of unpredictable disturbances on dynamic ecological systems is challenged by the paucity of appropriate temporal and spatial coverage…”
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Community resilience to tsunamis along the Southeastern Pacific: a multivariate approach incorporating physical, environmental, and social indicators by Villagra, Paula, Herrmann, Marie Geraldine, Quintana, Carolina, Sepúlveda, Roger D.

“…Tsunamic events are a frequent hazard to coastal towns. Despite this, the extent to which resilience models can be applied to coastal towns as well as the…”
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Macrobenthic Community Changes of Intertidal Sandy Shores after a Mega-Disturbance by Sepúlveda, Roger D., Valdivia, Nelson

“…Large-scale events of destruction and mortality trigger abrupt changes in the structure of natural communities. Testing the magnitude of such effects and the…”
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Effects of shape variations on the energy metabolism of the sand cricket Gryllus firmus: a geometric morphometric analysis by Nespolo, Roberto F, Sepúlveda, Roger D, Castañeda, Luis E, Roff, Derek A

“…Respiration and energy metabolism are key processes in animals, which are severely constrained by the design of physical structures, such as respiratory…”
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Nonrandom filtering effect on birds: species and guilds response to urbanization by Silva, Carmen Paz, Sepúlveda, Roger D., Barbosa, Olga

“…Using bird survey data taken in three cities in Southern Chile, we evaluated the hypothesis that changes in community composition from periurban to urban areas…”
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Behaviour of Robsonella fontaniana in response to a potential predator/Conducta de Robsonella fontaniana frente a un depredador potencial by Ruiz, Juan Francisco, Sepulveda, Roger D, Ibanez, Christian M

“…Cephalopods have two main defence strategies: the first consists on reducing the odds of being detected by a predator, while the second focuses on avoiding…”
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Latitudinal patterns of species diversity on South American rocky shores: Local processes lead to contrasting trends in regional and local species diversity by Cruz‐Motta, Juan J., Miloslavich, Patricia, Guerra‐Castro, Edlin, Hernández‐Agreda, Alejandra, Herrera, Cesar, Barros, Francisco, Navarrete, Sergio A., Sepúlveda, Roger D., Glasby, Tim M., Bigatti, Gregorio, Cardenas‐Calle, Maritza, Carneiro, Pedro B. M., Carranza, Alvar, Flores, Augusto A. V., Gil‐Kodaka, Patricia, Gobin, Judith, Gutiérrez, Jorge L., Klein, Eduardo, Krull, Marcos, Lazarus, Juan F., Londoño‐Cruz, Edgardo, Lotufo, Tito, Macaya, Erasmo C., Mora, Camilo, Mora, Elba, Palomo, Gabriela, Parragué, Mirtala, Pellizzari, Franciane, Retamales, Roberto, Rocha, Rosana M., Romero, Leonardo

“…Aim We evaluated whether patterns of species diversity (α, β and γ) of rocky shore assemblages followed latitudinal gradients (i.e. LDGs) along the South…”
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Two evolutionary units on the South American razor clam Ensis macha (Bivalvia: Pharidae): genetic and morphometric evidence by Márquez, Federico, Trovant, Berenice, Van der Molen, Silvina, Sepúlveda, Roger D., Doña, Jorge, Johnson, Kevin P., Vierna, Joaquín

“…The patterns of genetic and phenotypic diversity in marine life are the result of different geological and ecological processes. We analyzed the pattern of…”
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Comparative allometric variation in intertidal chitons (Polyplacophora: Chitonidae) by Ibáñez, Christian M., Sepúlveda, Roger D., Sigwart, Julia D.

“…Allometry involves the study of the relationship between size and shape of an individual, and in particular, the manner in which shape depends on size. Animals…”
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Diversity of faunal assemblages associated with ribbed mussel beds along the South American coast: relative roles of biogeography and bioengineering by Sepúlveda, Roger D., Camus, Patricio A., Moreno, Carlos A.

“…Benthic organisms are among the most diverse and abundant in the marine realm, and some species are a key factor in studies related to bioengineering. However,…”
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Evaluating habitat suitability for the establishment of Monochamus spp. through climate-based niche modeling by Estay, Sergio A, Labra, Fabio A, Sepulveda, Roger D, Bacigalupe, Leonardo D

“…Pine sawyer beetle species of the genus Monochamus are vectors of the nematode pest Bursaphelenchus xylophilus. The introduction of these species into new…”
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Ascidian-associated polychaetes: ecological implications of aggregation size and tube-building chaetopterids on assemblage structure in the Southeastern Pacific Ocean by Sepúlveda, Roger D., Rozbaczylo, Nicolás, Ibáñez, Christian M., Flores, Marcelo, Cancino, Juan M.

“…Epifaunal polychaetes inhabit a range of habitat structures built by other organisms, such as ascidians. Here, we examine: i) the polychaete fauna inhabiting…”
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The biology and ecology of the jumbo squid Dosidicus gigas (Cephalopoda) in Chilean waters: a review/Biologia y ecologia del calamar Dosidicus gigas (Cephalopoda) en aguas chilenas: una revision by Ibanez, Christian M, Sepulveda, Roger D, Ulloa, Patricio, Keyl, Friedemann, Pardo-Gandarillas, M. Cecilia

“…The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the…”
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