Listar Biología por autor "d1899731-34a2-4cf3-94f8-d499e2fc22d2"
Mostrando ítems 1-18 de 18
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Abejas de Costa Rica
Hanson Snortun, Paul; Fernández Otárola, Mauricio; Lobo Segura, Jorge Arturo; Frankie, Gordon; Coville, Robin; Aguilar Monge, Ingrid; Acuña Cordero, Mariana; Herrera González, Eduardo (2021-05)Describe la diversidad y la historia natural de los principales grupos de abejas de Costa Rica. Además, se exponen sus relaciones con las plantas con flores y una lista de plantas apropiadas para ofrecer recursos a las ... -
Allometry and stilt root structure of the Neotropical palm Euterpe precatoria (Arecaceae) across sites and successional stages
Ávalos Rodríguez, Gerardo; Fernández Otárola, Mauricio (2010)The lack of secondary meristems shapes allometric relationships of the palms, infl uencing species segregation according to their capacity to adjust form and function to spatial and temporal changes in environmental ... -
Bryophyte and lichen biomass and nitrogen fixation in a high elevation cloud forest in Cerro de La Muerte, Costa Rica
Markham, John; Fernández Otárola, Mauricio (2021-01)Cloud forests have been found to lose more nitrogen in stream discharge than they gain from atmospheric deposition. They also support a large diversity and biomass of tree epiphytes, predominately composed of cryptogams. ... -
Convergent and complementary selection shaped gains and losses of eusociality in sweat bees
Jones, Beryl M.; Rubin, Benjamin E. R.; Dudchenko, Olga; Kingwell, Callum J.; Traniello, Ian M.; Wang, Z. Yan; Kapheim, Karen M.; Wyman, Eli S.; Adastra, Per A.; Liu, Weijie; Parsons, Lance R.; Jackson, S. RaElle; Goodwin, Katharine; Davidson, Shawn M.; McBride, Matthew J.; Webb, Andrew E.; Omufwoko, Kennedy S.; Van Dorp, Nikki; Fernández Otárola, Mauricio; Pham, Melanie; Omer, Arina D.; Weisz, David; Schraiber, Joshua; Villanea, Fernando; Wcislo, William T.; Paxton, Robert J.; Hunt, Brendan G.; Lieberman Aiden, Erez; Kocher, Sarah D. (2023-03-20)Sweat bees have repeatedly gained and lost eusociality, a transition from individual to group reproduction. Here we generate chromosome-length genome assemblies for 17 species and identify genomic signatures of evolutionary ... -
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 ... -
Demographic variation across successional stages and their effects on the population dynamics of the neotropical palm Euterpe precatoria
Fernández Otárola, Mauricio; Ávalos Rodríguez, Gerardo (2014)• Premise of the study: Environmental heterogeneity is a strong selective force shaping adaptation and population dynamics across temporal and spatial scales. Natural and anthropogenic gradients influence the variation of ... -
Depredación de la paloma piquirroja (Patagioenas flavirostris) por el gavilán bicolor (Accipiter bicolor): observaciones sobre el modo de consumo y vigilancia
Arévalo Hernández, José Edgardo; Fernández Otárola, Mauricio (2014)El gavilán bicolor depreda principalmente aves de tamaños variables. En esta comunicación reportamos la depredación de la paloma piquirroja por parte de un gavilán bicolor cerca del parque Nacional Volcán Poás, Costa Rica ... -
Ecological Networks between Tent-Roosting Bats (Phyllostomidae: Stenodermatinae) and the Plants Used in a Neotropical Rainforest
Rodríguez Herrera, Bernal; Rodríguez Girón, Melissa E.; Fernández Otárola, Mauricio (2018)Roost ecology in bats is a complex interaction of behavioral, morphological and physiological adaptations, thus, there are many factors involved in roost selection by bat species. Approximately 22 species of bats are able ... -
Effects of management and landscape composition on the diversity and structure of tree species assemblages in coffee agroforests
Häger, Achim; Fernández Otárola, Mauricio; Stuhlmacher, Michelle Faye; Acuña Castillo, Rafael; Contreras Arias, Agustín (2014-09-07)Understanding the processes that influence tree species composition in agricultural landscapes is essential for conservation of tropical biodiversity outside of protected areas. We analyzed the effects of landscape composition ... -
First evidence for an aposematic function of a very common color pattern in small insects
Mora Castro, Rebeca; Alfaro Córdoba, Marcela; Hernández Jiménez, Marcela; Fernández Otárola, Mauricio; Méndez Rivera, Michael; Ramírez Morales, Didier Daniel; Rodríguez Rodríguez, Carlos E.; Hanson Snortun, Paul (2021-02-11)Many small parasitoid wasps have a black head, an orange mesosoma and a black metasoma (BOB color pattern), which is usually present in both sexes. A likely function of this widespread pattern is aposematic (warning) ... -
First evidence for multimodal animal seed dispersal in orchids
Karremans Lok, Adam Philip; Bogarín Chaves, Diego Gerardo; Fernández Otárola, Mauricio; Sharma, Jyotsna; Watteyn, Charlotte; Warner Pineda, Jorge; Rodríguez Herrera, Bernal; Chinchilla Alvarado, Isler Fabián; Carman, Ernesto; Rojas Valerio, Emmanuel; Pillco Huarcaya, Ruthmery; Whitworth, Andrew (2022)Identifying the mechanisms for seed dispersal and persistence of species is a central aim of ecology. Seed dispersal by animals is an essential form of dissemination in many plant communities, including seeds of over 66% ... -
Forest in a changing world
Markham, John; Fernández Otárola, Mauricio (2016)Forest ecosystems have been used for human populations over millennia. Even today, forests provide a large amount of resources and environmental services for modern human populations, but disturbance caused by human ... -
Nest initiation by multiple females in an aerial-nesting orchid bee, Euglossa cybelia (Apidae: Euglossini)
Solano Brenes, Diego; Fernández Otárola, Mauricio; Hanson Snortun, Paul (2018)Among orchid bees that have been observed, nest initiation by multiple females is rare, and has never been reported from an aerial-nesting species. Here, we document nest initiation by multiple females in the aerial-nesting ... -
Scaling of stem diameter and height allometry in 14 neotropical palm species of different forest strata Gerardo
Ávalos Rodríguez, Gerardo; Gei, Maga; Ríos Reyes, Luis Diego; Fernández Otárola, Mauricio; Cambronero, Milena; Álvarez Vergnani, Carolina; Sylvester, Olivia; Rojas Pérez, Gustavo Adolfo (2019)Tropical palms reach tree-like heights without a vascular cambium through sustained cell expansion and lignification of primary tissues, but only a fraction of palms have been explored in their allometric relationships. ... -
Stem and crown allometry in four congeneric species of dioecious tropical trees
Fernández Otárola, Mauricio; Sazima, Marlies; Solferini, Vera Nisaka (2016)Morphological adaptations favor differential use of the space in tropical trees, but the variability in stem and crown allometry can be constrained by phylogenetic and mechanical factors. In addition, dioecious species ... -
Successional stage, fragmentation, and exposure to extraction influence the population structure of Euterpe precatoria (Arecaeae)
Ávalos Rodríguez, Gerardo; Fernández Otárola, Mauricio; Engeln, James Theodore (2013)The neotropical palm Euterpe precatoria is subject to extraction for its valuable palm heart. The development of management and conservation practices for this species requires understanding of its population structure, ... -
Sweet as Vanilla hartii: Evidence for a nectar-rewarding pollination mechanism in Vanilla (Orchidaceae) flowers
Watteyn, Charlotte; Scaccabarozzi, Daniela; Muys, Bart; Reubens, Bert; Ackerman, James D.; Fernández Otárola, Mauricio; Guizar Amador, Maria Fernanda; Karremans Lok, Adam Philip (2023-05-01)Little is known about the pollination mechanisms of species belonging to the genus Vanilla (Orchidaceae). Both autonomous self-pollination and animal-mediated pollination mechanisms seem to exist amongst the Vanilla species, ... -
Wind creates crown shyness, asymmetry, and orientation in a tropical montane oak forest
Markham, John; Fernández Otárola, Mauricio (2020)In a cloud forest dominated by Quercus costaricensis, the gap size between the crowns was consistent and crowns were asymmetrical, being elongated perpendicular to the prevailing wind direction. A wind storm of 20 m/s ...