Listar Biología por título
Mostrando ítems 1301-1320 de 1615
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Salinity effect on embryonic development and survival of the first zoeal stage of Macrobrachium tenellum (Smith, 1871) (Crustacea, Palaemonidae)
(2018)The objective of this work is to provide information to understand the effect of different salinities on the survival of embryos and newly-hatched larvae of Macrobrachium tenellum. The survival of M. tenellum embryos was ... -
Salivary gland morphology, tissue tropism and the progression of tospovirus infection in Frankliniella occidentalis
(2016)Tomato spotted wilt virus (TSWV) is transmitted by thrips in a propagative manner; however, progression of virus infection in the insect is not fully understood. The goal of this work was to study the morphology and infection ... -
sandy.beaches.ecology.cvs
(2019-01)The data were taken from 28 sandy beaches of Costa Rica (16 from the Pacific Coast and 12 from the Caribbean). This study aimed to (1) determine the differences of sediment and beach characteristics between both Pacific ... -
Sarcoglottis C.Presl
(2022-12)The genus Sarcoglottis was named in 1827 by Czech botanist Carl Borivoj Presl, a professor at the University of Prague. The name comes from the Greek sarkos, meaning flesh, and glotta, tongue, in reference to the texture ... -
Scaling of stem diameter and height allometry in 14 neotropical palm species of different forest strata Gerardo
(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. ... -
Scaphosepalum Pfitzer
(2022)There are just over 50 species of Scaphosepalum Pfitzer recog- nized today. They are widely distributed from Mexico to Bolivia and the Guyana Shield, with the highest species diversity found in the northern Andes, especially ... -
Scirtothrips menai sp.n., a new species from Costa Rica, Central America (Thysanoptera, Terebrantia, Thripidae)
(2016)The genus Scirtothrips Shull 1909 is characterized by small, pale, active thrips with no more than 1500 μm in length that feed generally on young leaves. Most species feed on a few host plants, while others are polyphagous, ... -
Screening of Latin American plants for antiparasitic activities against malaria,Chagas disease, and leishmaniasis
(2010)In order to explore rationally the medical potential of the plant biodiversity of the Central and South American region as a source of novel antiparasitic molecules, a multinational Organization of American States (OAS) ... -
Seagrass organic carbon stocks show minimal variation over short time scales in a heterogeneous subtropical seascape
(2018)Blue carbon initiatives require accurate monitoring of carbon stocks. We examined sources of variability in seagrass organic carbon (Corg) stocks, contrasting spatial with short temporal scales. Seagrass morphology and ... -
Seagrasses benefit from mild anthropogenic nutrient additions
(2022)Seagrasses are declining globally, in large part due to increased anthropogenic coastal nutrient loads that enhance smothering by macroalgae, attenuate light, and are toxic when in excessive concentrations of inorganic ... -
Seagrasses of Costa Rica: from the mighty Caribbean to the dynamic meadows of the Eastern Tropical Pacific
(2018)Seagrass meadows are declining worldwide, mostly attributed to anthropogenic disturbances. Understanding the dynamics of these meadows is urgent in order to establish adequate management and conservation strategies. Here, ... -
Seasonal patterns of parasitism of the tropical spiders Theridion evexum (Araneae, Theridiidae) and Allocyclosa bifurca (Araneae, Araneidae) by the wasps Zatypota petronae and Polysphincta gutfreundi (Hymenoptera, Ichneumonidae)
(2008)Las tasas de parasitismo de Theridion evexum por la avispa parasitoide Zatypota petronae y de Allocyclosa bifurca por Polysphincta gutfreundi fueron estudiadas durante dos años. El parasitismo en T. evexum fue muy bajo ... -
Seasonality in the emission of contact calls in Spix’s disc-winged bats(Thyroptera tricolor) suggests a potential role in mate attraction
(2022)Multiple studies show that animals exhibit consistent individual differences in behavior, but they also experience short-term changes in their behavioral responses associated with seasonal events, most notably reproduction. ... -
Seasonality of parasitic and saprotrophic zoosporic fungi: linking sequence data to ecological traits
(2022-06-28)Zoosporic fungi of the phylum Chytridiomycota (chytrids) regularly dominate pelagic fungal communities in freshwater and marine environments. Their lifestyles range from obligate parasites to saprophytes. Yet, linking the ... -
Sediment organic carbon stocks were similar among four species compositions in a tropical seagrass meadow
(2022)Seagrass meadows composed of larger species are assumed to store larger sediment organic carbon (Corg) stocks, storing more Corg in their tissues and larger leaves promoting greater burial of seagrass and non-seagrass Corg. ... -
Seed dissemination by frugivorous birds from forest fragments to adjacent pastures on the western slope of Volcán Barva, Costa Rica
(2002)Logging, cattle raising, and agricultural activities have caused the destruction of most forested áreas in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of montane forest. ... -
Selective breeding of rats for high (HAB) and low (LAB) anxiety-related behaviour: A unique model for comorbid depression and social dysfunctions
(2023)Animal models of selective breeding for extremes in emotionality are a strong experimental approach to model psychopathologies. They became indispensable in order to increase our understanding of neurobiological, genetic, ... -
Self-assembly of a catechol-based macrocycle at the liquid–solid interface: experiments and molecular dynamics simulations
(2012)This combined experimental (STM, XPS) and molecular dynamics simulation study highlights the complex and subtle interplay of solvent effects and surface interactions on the 2-D self-assembly pattern of a Schiff-base ... -
Selfing in epiphytic bromeliads compensates for the limited pollination services provided by nectarivorous bats in a neotropical montane forest
(2024-02)Plants with specialized pollination systems frequently exhibit adaptations for self-pollination, and this contradictory situation has been explained in terms of the reproductive assurance function of selfing. In the ...