Listar Biología por autor "5da7648d-5c48-4e46-9438-85892801f38f"
Mostrando ítems 1-8 de 8
-
Blooming plant species diversity patterns in two adjacent Costa Rican highland ecosystems
Cristóbal Pérez, Edson Jacob; Barrantes Montero, Gilbert; Cascante Marín, Alfredo; Madrigal Brenes, Ruth; Hanson Snortun, Paul; Fuchs Castillo, Eric J. (2023-01-12)The Costa Rican Paramo is a unique ecosystem with high levels of endemism that is geographically isolated from the Andean Paramos. Paramo ecosystems occur above Montane Forests, below the permanent snow level, and their ... -
Construction and function of the web of Tidarren sisyphoides (Araneae: Theridiidae)
Madrigal Brenes, Ruth; Barrantes Montero, Gilbert (2009)In this paper, we describe the construction and function of the double sheet and tangle web of Tidarren sisyphoides (Walckenaer 1842). Web construction includes several stages: construction of the scaffolding that serves ... -
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 ... -
Genetic diversity and reproductive biology of the dioecious and epiphytic bromeliad Aechmea mariae-reginae (Bromeliaceae) in Costa Rica: implications for its conservation
Cascante Marín, Alfredo; Trejos Hernández, Christian; Madrigal Brenes, Ruth; Fuchs Castillo, Eric J. (2019)Ecological traits and pollination mode associated with dioecious sexual expression in plants are likely to influence their reproductive success and levels of genetic diversity. Dioecy is an uncommon condition in Bromeliaceae. ... -
Genetic structure in neotropical birds with different tolerance to urbanization
Rodríguez Bardía, Mauricio Alejandro; Fuchs Castillo, Eric J.; Barrantes Montero, Gilbert; Madrigal Brenes, Ruth; Sandoval Vargas, Luis Andrés (2022)Gene flow in birds can be affected by urbanization depending on natural history traits and adaptability to habitat change. Contrasting results can be expected when comparing species with opposite resilience to urbanization. ... -
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. ... -
Ontogenetic changes in web architecture and growth rate of Tengella radiata(Araneae, Tengellidae)
Madrigal Brenes, Ruth; Barrantes Montero, Gilbert (2008)In some spiders features of the webs of early instars may represent features of the ancestor's web. Some second instar spiderlings (first instar outside of the egg sac) of Tengella radiata (Kulczynski 1909) construct a ... -
Vestiges of an orb-weaving ancestor? The “biogenetic law” and ontogenetic changes in the webs and building behavior of the black widow spider Latrodectus geometricus (Araneae Theridiidae)
Eberhard Chabtree, William G.; Barrantes Montero, Gilbert; Madrigal Brenes, Ruth (2008)Young juveniles of L. geometricus fit the strong trend for “ontogeny to repeat phylogeny” previously documented in other web-building spiders; younger spiders were less likely to build the derived silk retreats that occur ...