Listar Biología por autor "556ffef7-e51c-46dc-b4e8-8425c1ee2385"
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Complex phylogeographic patterns indicate Central American origin of two widespread Mesoamerican Quercus (Fagaceae) species
Rodríguez Correa, Hernando; Oyama, Ken; Quesada Avendaño, Mauricio; Fuchs Castillo, Eric J.; Quezada Aguilar, Maura Liseth; Ferrufino Acosta, Lilian; Valencia Ávalos, Susana; Cascante Marín, Alfredo; González Rodríguez, Antonio (2017)The northern Neotropical region is characterized by a heterogeneous geological and climatic history. Recent studies have shown contrasting patterns regarding the role of geographic elements as barriers that could have ... -
Contrasting Patterns of Population History and Seed-mediated Gene Flow in Two Endemic Costa Rican Oak Species
Rodríguez Correa, Hernando; Oyama, Ken; Quesada Avendaño, Mauricio; Fuchs Castillo, Eric J.; González Rodríguez, Antonio (2018)Lower Central America is an important area to study recent population history and diversification of Neotropical species due to its complex and dynamic geology and climate. Phylogeographic studies in this region are few ... -
Curculionid beetles in aborted flower buds and immature fruits of Ceiba pentandra (Bombacaceae)
Fernández Otárola, Mauricio; Lobo Segura, Jorge Arturo; Chacón Madrigal, Eduardo; Quesada Avendaño, Mauricio (2008)We determined the incidence of curculionid beetles of the genus Lonchophorus on aborted and not aborted flower buds and developing fruits of the tree Ceiba pentandra in southeastern Costa Rica. Beetle larvae were found in ... -
Efecto de la perturbación del bosque en la tasa de visitas de murciélagos polinizadores y sus consecuencias sobre el éxito reproductivo y sistema de apareamiento en árboles de la familia Bombacaceae.
Stoner, Kathryn E; Lobo Segura, Jorge Arturo; Quesada Avendaño, Mauricio; Fuchs Castillo, Eric J.; Herrerías Diego, Yvonne; Munguía Rosas, Miguel Ángel; Salazar, Karla A. O.; Palacios Guevara, Carolina; Rosas Guerrero, Víctor (2007)La fragmentación y la perturbación del bosque pueden tener efectos deletéreos sobre el éxito reproductivo y el sistema de apareamiento de los árboles tropicales, además de modificar el compartimiento de sus polinizadores. ... -
Efectos de la Fragmentación de Bosques y la Fenología de Floración sobre el Éxito Reproductivo y los Patrones de Apareamiento de Pachira quinata, un Árbol de Bosque Tropical Seco
Fuchs Castillo, Eric J.; Lobo Segura, Jorge Arturo; Quesada Avendaño, Mauricio (2003)Los resultados de varios estudios sugieren que la fragmentación de bosques afecta los patrones deapareamiento y de éxito reproductivo de especies de árboles tropicales al reducir la actividad de poliniza-dores, la deposición ... -
Efectos de la Fragmentación del Bosque Tropical Seco Sobre el Éxito Reproductivo y la Estructura Genética del Arbol Samanea saman
Cascante Marín, Alfredo; Quesada Avendaño, Mauricio; Lobo Segura, Jorge Arturo; Fuchs Castillo, Eric J. (2002)Tropical trees are particularly vulnerable to forest fragmentation because of their low densities, self-incompatibilty system, and high rates of outbreeding. Forest fragmentation is likely to decrease gene flow, increase ... -
Effects of selective logging on the abundance, regeneration and short-term survival of Caryocar costaricense (Caryocaceae) and Peltogyne purpurea (Caesalpinaceae), two endemic timber species of southern Central America
Lobo Segura, Jorge Arturo; Barrantes Montero, Gilbert; Castillo, Marvin; Quesada Monge, Ruperto; Maldonado Ulloa, Tirso; Fuchs Castillo, Eric J.; Solís, Silvia; Quesada Avendaño, Mauricio (2007)In this study, we determined the effects of selective logging on the abundance of the last remnant populations of two tropical timber species with a restricted distribution, Caryocar costaricense and Peltogyne purpurea. ... -
Elevational and seasonal patterns of plant pollinator networks in two highland tropical ecosystems in Costa Rica
Cristóbal Pérez, Edson Jacob; Barrantes Montero, Gilbert; Cascante Marín, Alfredo; Hanson Snortun, Paul; Picado, Beatriz; Gamboa Barrantes, Nicole; Rojas Malavasi, Geovanna; Zumbado, Manuel A.; Madrigal Brenes, Ruth; Martén Rodríguez, Silvana; Quesada Avendaño, Mauricio; Fuchs Castillo, Eric J. (2024-01-11)Many plant species in high montane ecosystems rely on animal pollination for sexual repro- duction, however, our understanding of plant-pollinator interactions in tropical montane hab- itats is still limited. We compared ... -
Evaluating factors that predict the structure of a commensalistic epiphyte–phorophyte network
Sáyago, Roberto; Lopezaraiza Mikel, Martha; Quesada Avendaño, Mauricio; Álvarez Anorve, Mariana Yolotl; Cascante Marín, Alfredo; Bastida Montoya, Jesús María (2013)A central issue in ecology is the understanding of the establishment of biotic interactions. We studied the factors that affect the assembly of the commensalistic interactions between vascular epiphytes and their host ... -
Factors affecting phenological patterns of bombacaceous trees in seasonal forests in Costa Rica and Mexico
Lobo Segura, Jorge Arturo; Quesada Avendaño, Mauricio; Stoner, Kathryn E; Fuchs Castillo, Eric J.; Herrerías Diego, Yvonne; Rojas, Julissa; Saborío Rodríguez, Guido Alonso (2003)We compared phenological patterns of tree species of the family Bombacaceae in three seasonal forests in Mexico and Costa Rica whose dry seasons vary in duration and intensity. The objectives were to (1) determine intraspecific ... -
Habitat fragmentation negatively affects effective gene flow via pollen, and male and female fitness in the dioecious tree, Spondias purpurea (Anacardiaceae)
Cristóbal Pérez, Edson Jacob; Fuchs Castillo, Eric J.; Martén Rodríguez, Silvana; Quesada Avendaño, Mauricio (2021-03-01)Habitat fragmentation is recognized as one of main threats to global biodiversity. Habitat fragmentation negatively affects population size and mutualistic interactions that directly impact plant fitness and genetic ... -
Habitat fragmentation reduces plant progeny quality: a global synthesis
Aguilar, Ramiro; Cristóbal Pérez, Edson Jacob; Balvino Olvera, Francisco Javier; Aguilar Aguilar, María de Jesús; Aguirre Acosta, Natalia; Ashworth, Lorena; Lobo Segura, Jorge Arturo; Martén Rodríguez, Silvana; Fuchs Castillo, Eric J.; Sánchez Montoya, Gumersindo; Bernardello, Gabriel; Quesada Avendaño, Mauricio (2019-05-14)Most of the world’s land surface is currently under human use and natural habitats remain as fragmented samples of the original landscapes. Measuring the quality of plant progeny sired in these pervasive environments ... -
Individual and tempo- ral variation in outcrossing rates and pollen flow patterns in Ceiba pentandra (Malvaceae: Bombacoidea)
Lobo Segura, Jorge Arturo; Solís, Silvia; Fuchs Castillo, Eric J.; Quesada Avendaño, Mauricio (2013)Ceiba pentandra is a tropical tree with high rates of selfing in some populations. In mixed‐mating species, variation in selfing is due to changes in adult density or variability of incompatibility systems. The effect of ... -
Isolation and characterization of microsatellites for the neotropical dioecious palm Chamaedorea tepejilote (Arecaceae) and cross‑amplification in other Chamaedorea species
Fuchs Castillo, Eric J.; Cascante Marín, Alfredo; Madrigal Brenes, Ruth; Harvey, Nick; Quesada Avendaño, Mauricio (2020-06-18)Palms are important components of tropical and subtropical ecosystems and have even been considered keystone plant resources that can support a large array of pollinators and frugivores. Palms are also economically important. ... -
Isolation and characterization of microsatellites loci in Spondias purpurea (Anacardiaceae) and cross amplification in congeneric species
Cristóbal Pérez, Edson Jacob; Fuchs Castillo, Eric J.; Harvey, Nick; Quesada Avendaño, Mauricio (2019-07-18)Microsatellite markers provide high polymorphism levels, useful to study genetic diversity and gene flow patterns in plant populations. Here we develop and characterize microsatellite primers to evaluate patterns of genetic ... -
Janzen-Connell effects shape gene flow patterns and realized fitness in the tropical dioecious tree Spondias purpurea (ANACARDIACEAE)
Cristóbal Pérez, Edson Jacob; Fuchs Castillo, Eric J.; Olivares Pinto, Ulises; Quesada Avendaño, Mauricio (2020-03-12)Pollination and seed dispersal patterns determine gene flow within plant populations. In tropical forests, a high proportion of trees are dioecious, insect pollinated and dispersed by vertebrates. Dispersal vectors and ... -
Las platanillas del Refugio Nacional de Vida Silvestre Golfito
Fuchs Castillo, Eric J.; Quesada Avendaño, Mauricio (2005) -
Pollen load size, reproductive success and progeny kinship of natural pollinated flowers of the tropical dry forest tree, Pachira quinata (Bombacaceae)
Quesada Avendaño, Mauricio; Fuchs Castillo, Eric J.; Lobo Segura, Jorge Arturo (2001)Several studies have demonstrated, using controlled pollinations, that the number and identity of pollen grains deposited onto a flower's stigma affect the reproductive success of plants. However, few studies have shown ...