Browsing by Author "af8ab36f-625b-473c-af3d-c03c6ece933e"
Now showing items 21-40 of 49
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Squeo, Francisco A.; Cepeda P., Jorge; Olivares, Nancy C.; Arroyo, Mary T. K. (Universidad de La Serena, 2006)El entendimiento de un ecosistema requiere conocer no sólo su estructura, sino que también es fundamental entender cómo sus distintos componentes interactúan. En este capítulo se integran muchos de nuestros resultados ...
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Latorre, Claudio; Betancourt, Julio L.; Arroyo, Mary T. K. (2006)Plant macrofossils from 33 rodent middens sampled at three sites between 2910 and 3150 m elevation in the main canyon of the Río Salado, northern Chile, yield a unique record of vegetation and climate over the past 22,000 ...
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Cavieres, Lohengrin A.; Chacón, Paulina; Peñaloza, Alejandro; Molina Montenegro, Marco A.; Arroyo, Mary T. K. (SPRINGER, 2007-05)Leaf litter accumulation can have either positive, negative or neutral effects on seed germination and seedling recruitment. In montane woodlands of the Mediterranean zone of central Chile, large amounts of leaf litter ...
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Arroyo, Mary T. K.; Pliscoff, Patricio; Mihoc, Maritza (Cambridge University Press, 2005)
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Armesto, Juan J.; Arroyo, Mary T. K.; Hinojosa Opazo, Luis (Oxford University Press., 2007)
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Muñoz, Alejandro; Arroyo, Mary T. K. (Springer, 2004)Studies on plant-pollinator interactions have largely neglected the potential negative effects of the predators of pollinators on seed output, even though anti-predatory behaviour of pollinators may affect visitation ...
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Hinojosa Opazo, Luis; Gaxiola, Aurora; Pérez, María Fernanda; Carvajal, Francy; Campano, María Francisca; Quattrocchio, Mirta; Nishida, Harufumi; Uemura, Kazuhiko; Yabe, Atsushi; Bustamante Araya, Ramiro; Arroyo, Mary T. K. (WILEY-BLACKWELL, 2016)AimWe used fossil and phylogenetic evidence to reconstruct climatic niche evolution in Nothofagus, a Gondwana genus distributed in tropical and temperate latitudes. To assess whether the modern distribution of the genus ...
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Hargrove, Eugene C.; Arroyo, Mary T. K.; Raven, Peter H.; Mooney, Harold (RESILIENCE ALLIANCE, 2008-12)The biocultural conservation and research initiative of Omora Ethnobotanical Park and the UNESCO Cape Horn Biosphere Reserve was born in a remote part of South America and has rapidly expanded to attain regional, national, ...
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Givnish, Thomas J.; Spalink, Daniel; Ames, Mercedes; Lyon, Stephanie P.; Hunter, Steven J.; Zuluaga, Alejandro; Doucette, Alfonso; Caro, Giovanny Giraldo; McDaniel, James; Clements, Mark A.; Arroyo, Mary T. K.; Endara, Lorena; Kriebel, Ricardo; Williams, Norris H.; Cameron, Kenneth M. (2016)AimOrchidaceae is the most species-rich angiosperm family and has one of the broadest distributions. Until now, the lack of a well-resolved phylogeny has prevented analyses of orchid historical biogeography. In this study, ...
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Meyer, Kyle M.; Hoot, Sara B.; Arroyo, Mary T. K. (UNIV CHICAGO PRESS, 2009-10)This study tests the phylogenetic affinities of 11 South American species of Anemone s.l., including the closely related endemic segregate genera Barneoudia and Oreithales.We analyzed combined sequence data (chloroplast ...
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Pérez, F.; Arroyo, Mary T. K.; Medel Contreras, Rodrigo (2007)To assess whether floral integration patterns result from the action of pollinator selection on functionally related traits, we compared corolla integration patterns in eight Schizanthus species differing in pollination ...
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Jara Arancio, Paola; Arroyo, Mary T. K.; Guerrero, Pablo C.; Hinojosa Opazo, Luis; Arancio, Gina; Méndez, Marco (John Wiley, 2014)Aim Shifts between the western South American sclerophyll and winter-rainfall desert biomes and their relationship to climatic niche evolution and aridity development were investigated in the South American endemic ...
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Hoot, Sara B.; Kramer, Jenny; Arroyo, Mary T. K. (UNIV CHICAGO PRESS, 2008-04)The endemic southern South American genus Hamadryas (Ranunculaceae), consisting of five species, has been regarded as closely related to or part of Ranunculus s.l. (tribe Ranunculeae) based on morphological observations. ...
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Jara Arancio, Paola; Vidal, Paula M.; Arroyo, Mary T. K. (Wiley, 2018)The genus Triptilion is endemic to central Chile, the Mendoza Province and western Patagonia in Argentina. It is currently composed of seven species: T. achilleae, T. benaventii, T. berteroi, T. capillatum, T. cordifolium, ...
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Guerrero, Pablo C.; Arroyo, Mary T. K.; Bustamante Araya, Ramiro; Duarte, Milén; Hagemann, Thomas K.; Walter, Helmut E. (Springer-Verlag Wien, 2011)The classification of Eriosyce subgenus Neoporteria ("subsection" in the sense of Kattermann) and the role of allopatry/sympatry in the diversification of the group were studied by use of cladistic and predictive distribution ...
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Arroyo, Mary T. K.; Hinojosa Opazo, Luis; Bell, Charles; Hershkovitz, Mark (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-12)Penalized likelihood analysis of previously published chloroplast DNA (cpDNA) ndhF sequences suggests that the central-southern Andean genus Chaetanthera diverged ca. 16.5 million years (my) ago, well before the uplift of ...
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Hershkovitz, Mark A.; Arroyo, Mary T. K.; Bell, Charles; Hinojosa Opazo, Luis (2006)Penalized likelihood analysis of previously published chloroplast DNA (cpDNA) ndhF sequences suggests that the central-southern Andean genus Chaetanthera diverged ca. 16.5 million years (my) ago, well before the uplift of ...
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Pacheco Sandoval, Diego Andrés; Dudley, Leah; Cabezas Alvarez, Josefina; Cavieres, Lohengrin; Arroyo, Mary T. K. (Public Library Science, 2016)The tendency for flower longevity to increase with altitude is believed by many alpine ecologists to play an important role in compensating for low pollination rates at high altitudes due to cold and variable weather ...
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Muñoz, Alejandro A.; Arroyo, Mary T. K. (INST ARCTIC ALPINE RES, 2006-11)Low temperatures, short growing seasons, and strong winds, which constrain the abundance and activity of insect pollinators, characterize alpine ecosystems. In northern hemisphere alpine environments, the reproductive ...
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Muñoz, Alejandro; Arroyo, Mary T. K. (Institute of Arctic and Alpine Research, 2002)Postdispersal seed predation in alpine communities has received surprisingly little attention. We evaluate the magnitude of seed predation by ants and avian granivores in the perennial herb Sisyrinchium arenarium through ...