Further occurrences of melanism in a northern, peripheral, population of Bobcat (Lynx rufus)

Although melanism is understood to occur commonly among some felids, it is reported to be most frequent among cat species that occur in humid, tropical, and densely vegetated habitats. Previously, a single record of a melanistic Bobcat (Lynx rufus) from eastern Canada (New Brunswick) appeared to be a northern outlier, with all other reports of melanism in this species restricted to the warm, humid, climate of southern peninsular Florida. Here, I document a further five occurrences of melanism in Bobcat from New Brunswick and review evidence that a mutation in an agouti-signalling protein gene may be responsible for melanism in New Brunswick Bobcats.

Differentiation of reproductive traits between central and peripheral populations of Allium wallichii Kunth

The differentiation of reproductive characteristics not only exists between different populations, but also may exist within populations. In this work, the differences between the central and peripheral populations were experimentally compared and analyzed in terms of biodiversity index, plant traits, anthesis, pollen germination, floral visitors, seed setting rate, and ploidy. The results showed that the diversity and richness of other plant species, in the central population were significantly lower than those in the peripheral population, but the plant density was much higher than in the peripheral population. The plant anatomical traits, anthesis, pollen germination, floral visitors, seed setting rate, and ploidy were significantly different between central population and peripheral populations. The term increasing rate (IR) is proposed as a means of comparing morphologies in different organs. IR differences in vegetative characteristics were more stable, while those in reproductive characteristics differed significantly. For the central population, the effect of the intraspecific reproductive competition and pollinator selection on plants may significant, and morphology was differentiated in terms of reproductive characteristics. Plants in the peripheral populations were visited by many more pollinators than in the central population, and all pollinators visited infrequently. The reproductive characteristics of plants in the peripheral populations may therefore only be weakly affected by pollinator selection. The reproductive characteristics of plants in the peripheral population may weakly affected by the selection of pollinators and the variation was small. In conclusion, morphological differentiation among the different populations was associated with differences in vegetative and reproductive characteristics.

Finding the Brain in the Nose

Olfaction is fundamentally distinct from other sensory modalities. Natural odor stimuli are complex mixtures of volatile chemicals that interact in the nose with a receptor array that, in rodents, is built from more than 1,000 unique receptors. These interactions dictate a peripheral olfactory code, which in the brain is transformed and reformatted as it is broadcast across a set of highly interconnected olfactory regions. Here we discuss the problems of characterizing peripheral population codes for olfactory stimuli, of inferring the specific functions of different higher olfactory areas given their extensive recurrence, and of ultimately understanding how odor representations are linked to perception and action. We argue that, despite the differences between olfaction and other sensory modalities, addressing these specific questions will reveal general principles underlying brain function.

PERFIL DE RESILIENCIA DE LA SALUD FEMENINA DE LA POBLACIÓN DE HUÁNUCO

PERFIL DE RESILIENCIA DE LA SALUD FEMENINA DE LA POBLACIÓN DE HUÁNUCO PROFILE OF THE RESILIANCE OF FEMENINE HEALTH IN THE POPULATION OF HUANUCO Mónica Tamayo García, Nancy Castañeda Eugenio y Nilton Alvarado Calixto DOI: https://doi.org/10.33017/RevECIPeru2007.0006/ RESUMEN El principal objetivo de la investigación fue conocer las características del perfil de resiliencia en el auto cuidado de la salud femenina de la población urbana, rural y periférica de Huanuco para determinar los lineamientos de intervención comunitaria. El tipo y nivel de investigación fue Descriptivo, analítico y explicativo. Prospectivo transversal El diseño corresponde al no experimental de tipo cualitativo. Este estudio se llevó a cabo en el Distrito de Huánuco, Pueblo Joven Las Moras y Centro Poblado Menor de Ingenio Bajo. La población estuvo constituida por todas las mujeres de las zonas intervenidas y la muestra representada por cincuenta mujeres de cada una de ellas. Entre los principales resultados se señalan que tanto las mujeres de las zonas urbana, rural y periférica poseen ciertas características que favorecen su desarrollo individual, familiar e inclusive de su comunidad; a pesar de las situaciones desfavorables que afrontan en sus vidas. Palabras clave: Auto cuidado, perfil de resiliencia, salud, población urbana, población rural, población periférica. ABTRACT The main objective of the investigation was to know the characteristics of the profile of resilience in the taken care of car of the feminine health of the urban, rural and peripheral population of Huanuco to determine the lineamientos of communitarian intervention. The type and investigation level was prospectivo cross-sectional analytical and explanatory. design corresponds to the nonexperimental one of qualitative type. This study it carried out in the District of Huánuco, Town Young the Moors and Center Populated Smaller with Low talent. The population was constituted by all the women of the taken part zones and she shows represented by fifty women of each one of them. Between the main results they indicate that as much the women of the zones urban, rural and peripheral they have certain characteristics that favor their individual development, familiar e including of its community; in spite of the situations unfavorable that they confront in his lives. Keywords: Taken care of car, profile of resilience, health, urban population, rural population, peripheral population.