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Mostrando ítems 634-653 de 1643
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The evolution of prey‐wrapping behaviour in spiders
(2007)We traced the evolution of silk use by spiders in attacks on prey by combining previous publications with new observations of 31 species in 16 families. Two new prey‐wrapping techniques are described. One, in which the ... -
Evolution of Seed Dispersal Modes in the Orchidaceae: Has the Vanilla Mystery Been Solved?
(2023)Orchid seeds are predominantly wind-dispersed, often developed within dry, dehiscent fruits that typically release millions of dust-like seeds into the air. Animal-mediated seed dispersal is a lesser-known phenomenon in ... -
Evolutionary diversification and historical biogeography of orchidaceae in Central America with emphasis on Costa Rica and Panama
(2019)In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species ... -
Evolutionary history and systematics of Campylocentrum (Orchidaceae: Vandeae: Angraecinae): a phylogenetic and biogeographical approach
(2018)Subtribe Angraecinae (Orchidaceae: Vandeae) are mainly distributed in Africa, but with two genera, Campylocentrum and Dendrophylax, restricted to the Neotropics. As a widespread Neotropical genus, Campylocentrum constitutes ... -
Evolutionary history of the reef fish Anisotremus interruptus (Perciformes: Haemulidae) throughout the Tropical Eastern Pacific
(2020)The Tropical Eastern Pacific (TEP) is a dynamic coastal environment characterized by a complex system of oceanic processes and discontinuous rocky habitats. These features, in conjunction with the ecological and physiological ... -
Expanding the application scope of on-farm biopurification systems: Effect and removal of oxytetracycline in a biomixture
(2017)Antibiotic-containing wastewaters produced in agricultural activities may depress the pesticidedegrading capacity of biomixtures contained in biopurification systems. This work aimed to assay the effect of oxytetracycline ... -
Experimental demonstration of possible cryptic female choice on male tsetse fly genitalia
(J. Insect Physiol. 2009 Nov; 55(11): 989-996, 2009)A possible explanation for one of the most general trends in animal evolution – rapid divergent evolution of animal genitalia – is that male genitalia are used as courtship devices that influence cryptic female choice. ... -
Experimental modifications imply a stimulatory function for male tsetse fly genitalia, supporting cryptic female choice theory
(THE AUTHORS. J. EVOL. BIOL. 22 (2009) 151 6-1525 JOURNAL COMPILATION, 2009)One of the most sweeping of all patterns in morphological evolution is that animal genitalia tend to diverge more rapidly than do other structures. Abundant indirect evidence supports the cryptic female choice (CFC) ... -
Exploración del Everest en la zona mesofótica del Parque Nacional Isla del Coco
(2021)Video realizado para difundir el proyecto 810-C1-081 "Estructura y biodiversidad de las comunidades de coral mesofóticas en el Parque Nacional Isla del Coco", que tiene como principal objetivo describir el monte Everest, ... -
Exploring farmer preferences towards innovations in the vanilla supply chain
(2021-11)The vanilla supply chain is characterized by high risk crop management and unstable supply. In order to meet global vanilla demand while improving production sustainability, new approaches considering agro-ecological ... -
Expresión de genes relacionados al sistema de defensa de dos variedades de café (Coffea Arabica) mediante el uso de inductores de resistencia contra el patógeno de la roya (Hemileia vastatrix)
(2022)El objetivo de esta investigación fue analizar la expresión 6 genes relacionados con el sistema de defensa café (Coffea arabica L.) contra el patógeno de la roya (Hemileia vastatrix) al aplicar AS y FP en plantas var. Obatá ... -
Expression analysis of two SOMATIC EMBRYOGENESIS RECEPTOR KINASE (SERK) genes during in vitro morphogenesis in Spanish cedar (Cedrela odorata L.)
(2018-11-08)Somatic embryogenesis (SE) is one of the most important steps during regeneration, but the molecular mechanism of SE remains unclear for Cedrela odorata. SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) is one of the genes ... -
Extended suspect screening to identify contaminants of emerging concern in riverine and coastal ecosystems and assessment of environmental risks
(2021)A suspect screening methodology was developed for the fast and reliable identification of 360 contaminants of emerging concern (CECs) of anthropogenic origin in the vulnerable area of the Ebro Delta (Catalonia, Spain) and ... -
External Morphology of Tagosodes orizicolus (Homoptera: Delphacidae) Revealed by Scanning Electron Microscopy
(2001)A comprehensive analysis of the ultrastructure of the delphacid rice pest Tagosodes orizicolus (Muir) was undertaken using scanning electron microscopy to resolve taxonomic problems in the distinction of females and nymphs ... -
Extreme Behavioral Adjustments by an Orb‐Web Spider to Restricted Spaces
(2012)Adaptive flexibility in response to environmental variation is often advantageous and occurs in many types of traits in many species. Although the basic designs of the orb webs of a given species are relatively uniform, ... -
El factor humano en la regeneración de bosques
(2004-06)Se proponen ideas prácticas para la recuperación de bosques, valorando tres estrategias: A) Regeneración natural, sin intervención antropógena más allá de la protección física (ej., cercas, vallas, rondas contra incendios) ... -
Factores de paisaje y de manejo ligados a la conservación de mamíferos terrestres dentro de la Reserva Forestal Golfo Dulce, Costa Rica
(2022)Las Áreas Protegidas (AP) son esenciales como hábitat para especies en peligro como los mamíferos grandes y medianos, sin embargo, cada vez es más evidente que la conservación en tierras privadas es necesaria para que las ... -
Factors affecting phenological patterns of bombacaceous trees in seasonal forests in Costa Rica and Mexico
(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 ...