Browsing by Author "Arroyo, Mary T. K."
Now showing items 1-15 of 15
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Torres Díaz, Cristian; Cavieres, Lohengrin A.; Muñoz Ramírez, Carlos; Arroyo, Mary T. K. (2007)Insect pollinator activity can be influenced by biotic (e.g., patch floral density and floral display) or by abiotic factors (e.g., temperature, wind velocity, cloudiness). In spite of microsite, seasonal and interannual ...
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Armesto, Juan J.; Rozzi, R.; Smith-Ramírez, C.; Arroyo, Mary T. K. (1998)
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Arroyo, Mary T. K.; Till-Bottraud, Irene; Torres, Cristian; Henríquez, Carolina A.; Martínez, Jaime (2007)In our study, we asked whether butterflies visiting Chaetanthera lycopodioides (Asteraceae) in the subnival at 3450 m a.s.l. in the central Andes prefer larger floral displays. To answer this question, we compared the ...
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Rozzi, Ricardo; Arroyo, Mary T. K.; Armesto, Juan J. (1997)In the Andes of Central Chile, flowering commences 1-2 months earlier on equatorial-(north-) facing than on polar- (south-) facing slopes, and pollinator assemblages also differ between these habitats. In order to understand ...
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Guerrero, Pablo C.; Rosas, Marcelo; Arroyo, Mary T. K.; Wiens, John J. (PNAS, 2013-07)The assembly of regional biotas and organismal responses to anthropogenic climate change both depend on the capacity of organisms to adapt to novel ecological conditions. Here we demonstrate the concept of evolutionary ...
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Arroyo, Mary T. K.; Tamburrino Widner, Ítalo Francisco; Pliscoff, Patricio; Robles Jarpa, Valeria Francisca; Colldecarrera Sunyer, María Rosa; Guerrero, Pablo (MDPI, 2021)Delayed flowering due to later snowmelt and colder temperatures at higher elevations in the alpine are expected to lead to flowering phenological adjustment to prevent decoupling of peak flowering from the warmest time of ...
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Sassone, Agostina B.; Arroyo, Mary T. K.; Arroyo Leuenberger, Silvia C.; García Berguecio, Nicolás; Román Ayo, María José (Wiley, 2021)The establishment of species boundaries has been a difficult task for biologists since the beginning of classifications. Within South American Allioideae (= Alliaceae), the delimitation of genera and species has long been ...
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Arroyo, Mary T. K.; Pérez, Fernanda; Jara Arancio, Paola; Pacheco, Diego; Vidal, Paula; Flores, María Francisca (Blackwell, 2019)How animal-pollinated plants support low and stochastic pollination in the high alpine is a key question in plant ecology. The ovule bet-hedging hypothesis proposes compensation for stochastic pollination via ovule oversupply ...
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Muñoz, Alejandro A.; Arroyo, Mary T. K. (2006)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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Medel Contreras, Rodrigo; Botto Mahan, Carezza; Arroyo, Mary T. K. (Ecological Society of America, 2003)Mimulus luteus (Scrophulariaceae) is a perennial herb occurring in the South American Andes that shows a wide variation in the size and shape of a red spot on the lower lobe of the yellow flower. We describe the preference ...
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Riveros, M.; Parades, M. A.; Rosas, M. T.; Cardenas, E.; Armesto, Juan J.; Arroyo, Mary T. K.; Palma, B. (1995)The reproductive systems of three species of Nothofagus, N. dombeyi (Mirb.) Oerst., N. nitida (Phil.) Krasser and N. obliqua (Mirb.) Oerst. (Fagaceae), were studied in their natural forest habitats in Valdivia, Chile, using ...
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Cavieres, Lohengrin A.; Arroyo, Mary T. K. (2000)The ability to germinate under a variety of environmental conditions is essential for plant species inhabiting a wide range of altitudes and latitudes. Phacelia secunda J. F. Gmel. (Hydrophyllaceae) is a perennial herb ...
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Arroyo, Mary T. K.; Dudley, Leah S.; Jespersen, Gus; Pacheco, Diego A.; Cavieres, Lohengrin A. (2013)How high-alpine plants confront stochastic conditions for animal pollination is a critical question. We investigated the effect of temperature on potential flower longevity (FL) measured in pollinator-excluded flowers and ...
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Rozzi, Ricardo; Crego, Ramiro D.; Contador, Tamara; Schüttler, Elke; Rosenfeld, Sebastián; Mackenzie, Roy; Barroso, Omar; Silva-Rodríguez, Eduardo A.; Álvarez-Bustos, Ximena; Silva, Alejandra; Ramírez, Irene; Mella, José; Herreros, Jorge; Rendoll-Cárcamo, Javier; Marambio, Johanna; Ojeda, Jaime; Méndez, Felipe; Moses, Kelli-P.; Kennedy, James; Russell, Shaun; Goffinet, Bernard; Sancho, Leopoldo-G.; Berchez, Flávio; Buma, Brian; Aguirre, Francisco; Sánchez-Jardón, Laura; Barros, Eduardo; Vásquez, Rodrigo A.; Arroyo, Mary T. K.; Poulin, Elie; Squeo, Francisco; Armesto, Juan J.; Mansilla, Andrés; Massardo, Francisca (Universidad de Magallanes, 2020)
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Scherson, R. A.; Naulin, P. I.; Albornoz, A. A.; Hagemann, T.; Arroyo, Mary T. K. (2012)Phylogenetic diversity (PD) is commonly calculated by adding together the branch lengths or ages of a subset of taxa present in an area, using a single phylogeny as a backbone. However, a phylogenetic hypothesis is the ...