Listar Ciencias básicas por título
Mostrando ítems 3073-3092 de 3100
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Warming and Earlier Spring Increase Western U.S. Forest Wildfire Activity
(2006-08-18)Western United States forest wildfire activity is widely thought to have increased in recent decades, yet neither the extent of recent changes nor the degree to which climate may be driving regional changes in wildfire has ... -
Wasp florivory decreases reproductive success in an epiphytic bromeliad
(2009)Flower predation or florivory may alter the sexual expression, floral display, and reduce the reproductive success in plants. In this article, we estimated the effect of florivory on the reproductive success of the epiphytic ... -
Wavelet analysis of dengue incidence and its correlation with weather and vegetation variables in Costa Rica
(2021)Dengue represents a serious public health problem in tropical and subtropical regions worldwide. The number of dengue cases and its geographical expansion has increased in recent decades, driven mostly after by social and ... -
Web building behavior in a wall spider (Oecobiidae) suggests a close relationship with orb-weavers
(2022)Behavior is often phylogenetically informative and detailed descriptions of behavior have been used to support taxonomic relationships in several groups, such as birds, lizards, and arthropods. Web building behavior has ... -
Well-posedness and discrete analysis for advection-diffusion-reaction in poroelastic media
(2021)We analyse a PDE system modelling poromechanical processes (formulated in mixed form using the solid deformation, fluid pressure, and total pressure) interacting with diffusing and reacting solutes in the medium. We ... -
What can myxomycetes tell us about floricolous microbial systems?
(2017-02)The study described herein was conducted in Costa Rica in an effort to generate baseline data on the association between tropical inflorescences and a group of microorganisms known as myxomycetes. The assemblage structure ... -
What’s the date?
(2022)Rafaël Govaerts, Adam P Karremans and Julian Shaw go to lengths to establish the effective publication dates of some orchid names in the journal Revista Guatemalensis -
When a little is enough: cocoon web of Kapogea cyrtophoroides (Araneae: Araneidae) induced by Hymenoepimecis heidyae (Ichneumonidae: Pimplinae)
(2018)The final instar larvae of the koinobiont ectoparasitoids in the Polysphincta group of genera induce their host spiders to construct webs that protect the wasp pupa during its development. It has been hypothesized that ... -
When genes move farther than offspring: gene flow by male gamete dispersal in the highly philopatric bat species Thyroptera tricolor
(2013-11)For species characterized by philopatry of both sexes, mate selection represents an important behaviour for inbreeding avoidance, yet the implications for gene flow are rarely quantified. Here, we present evidence of male ... -
When the absence of evidence is not the evidence of absence: Nasa (Loasaceae) rediscoveries from Peru and Ecuador, and the contribution of community science networks
(2023)Documentation of plant taxa has long been subject to the temporal and spatial selectivity of professional research expeditions, especially in tropical regions. Therefore, rare and/or narrowly endemic species are sometimes ... -
Why is the electrocaloric effect so small in ferroelectrics?
(2016-05-19)Ferroelectrics are attractive candidate materials for environmentally friendly solid state refrigeration free of greenhouse gases. Their thermal response upon variations of external electric fields is largest in the vicinity ... -
Widespread local chronic stressors in Caribbean coastal habitats
(2017)Coastal ecosystems and the livelihoods they support are threatened by stressors acting at global and local scales. Here we used the data produced by the Caribbean Coastal Marine Productivity program (CARICOMP), the longest, ... -
Widespread Occurrence of Black-Orange-Black Color Pattern in Hymenoptera
(2019)Certain color patterns in insects show convergent evolution reflecting potentially important biological functions, for example, aposematism and mimicry. This phenomenon has been most frequently documented in Lepidoptera and ... -
Widespread tropical agrowastes as novel feedstocks for biochar production: characterization and priority environmental uses
(2020)Biochar, a carbon-rich pyrolytic product, has demonstrated positive results as a soil improver and carbon sequestration agent. Its production could be an appropriate and innovative practice for agricultural waste management ... -
William C. Burger (1932-2022), uno de los grandes en la florística de Costa Rica
(2023-10-06)El botánico estadounidense William C. Burger (1932-2022) fue uno de los principales estudiosos de la flora de Costa Rica en el siglo XX. Él trabajó en Field Museum, Chicago. En Costa Rica hizo numerosos viajes de exploración ... -
Wind creates crown shyness, asymmetry, and orientation in a tropical montane oak forest
(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 ... -
With great biodiversity comes great responsibility: The underestimated diversity of Epidendrum (Orchidaceae)
(2021-12-31)Epidendrum (orchidaceae) has been suggested to be a promising model system for evolutionary and ecological studies in the neotropical region. given its species diversity, the broad biogeographical and ecological range, and ... -
WWLLN Hot and Cold-Spots of Lightning Activity and Their Relation to Climate in an Extended Central America Region 2012–2020
(2022)Lightning activity has been recognized to have, historically, social and environmental consequences around the globe. This work analyzes the space-time distribution of lightning-densities (D) in an extended Central America ... -
x Cochlezella costaricensis, a name for a rare natural hybrid in the Zygopetalinae (Orchidaceae)
(2015)A new nothospecies in the subtribe Zygopetalinae (Orchidaceae), × Cochlezella costaricensis, representing a cross between Cochleanthes aromatica and Warczewiczella discolor, is described and illustrated from Costa Rica, ... -
Xantismo en peces cíclidos (Cichliformes: Cichlidae) costarricenses, y variación ontogenética en Parachromis dovii
(2021)Introducción: El xantismo o xantocromismo es una anomalía fenotípica que se evidencia por la producción predominante de xantina, un pigmento que le da al organismo una coloración amarillenta. En Costa Rica existen pocos ...