Nancy Chauvaux; Harry van Onckelen
~~ ~~ Ethylene formation was studied in 5- to 6-d-old Chenopodium robrom seedlings under the following light regimes: continuous light (CL), continuous darkness (CD), and alternating light\\/darkness (12 h of each). No significant regular oscillations in ethylene for- mation were found in either the CL or CD groups. In the light\\/dark regime, pronounced diurnal fluctuations in ethylene formation were observed.
Z. A. Timraleev; S. V. Susarev
According to the data obtained, the Mordovian fauna of diurnal lepidopterans comprises 75 species, including Hesperiidae (7\\u000a species), Papilionidae (5), Pieridae (10), Satyridae (10), Nymphalidae (27), and Lycaenidae (16). Based on the quantitative\\u000a assessments, the species were characterized as rare (1–5 ind. in the collection), scarce (6–30), common (31–170), and abundant\\u000a (171–940). Species with temperate (52 species or 69.3%) and
Blas Hernández; Jean-Michel Maes; Celia A. Harvey; Sergio Vílchez; Arnulfo Medina; Dalia Sánchez
Pastoral landscapes are complex mosaics of pastures, crop fields, forest fragments and other types of tree cover. In order to asses the value of these landscapes for biodiversity conservation, the diver- sity of dung beetles and butterflies was characterized in a pastoral landscape in Rivas, Nicaragua. In addition, the abundance, species richness, and diversity of dung beetles and butterflies were
COMUNIDAD DE MARIPOSAS DIURNAS (LEPIDOPTERA:RHOPALOCERA) EN UN GRADIENTE ALTITUDINAL DEL CAÑON DEL RÍO COMBEIMA-TOLIMA, COLOMBIA Butterflies Community (Lepidoptera:Rhopalocera) Along an Altitudinal Gradient in Combeima River Canyon Tolima, Colombia
Altitudinal variations in composition, richness, diversity and structure were studied in the butterflies' communities along an altitudinal gradient in Combeima River basin (Juntas-Tolima, Colombia) from 1800 m until 3000 m during one year through three sampling times, using insect nets and VanSomeren-Rydon traps. 101 butterflies species were collected that were classified into 59 genera and five families. Butterflies
La Sección 508 requiere que todas las personas con discapacidades (ya sean empleados gubernamentales federales o miembros del público en general) tengan acceso a datos e información y puedan usarlos en una forma similar a como lo hacen las personas sin discapacidades, a menos que esto represente una carga excesiva para la institución.
MEXICANO DEL PETRÃ?LEO "DOCTORADO EN CIENCIAS" 1999-2003 EDUCACION SUPERIOR, ESCUELA SUPERIOR DE COMPUTO-1999 EDUCACION MEDIA SUPERIOR, COLEGIO DE BACHILLERES PLANTEL "TÃ?CNICO EN INFORMATICA". CERTIFICADO. 1992-1995 EDUCACION MEDIA, "ESCUELA SECUNDARIA DIURNA 160". CERTIFICADO. ARTICULOS PUBLICOS: Â· E. German, C. Sanchez
In 1868, Lydia Becker (1827-1890), the renowned Manchester suffragist, announced in a talk before the British Association for the Advancement of Science that the mind had no sex. A year later, she presented original botanical research at the BAAS, contending that a parasitic fungus forced normally single-sex female flowers of Lychnis diurna to develop stamens and become hermaphroditic. This essay uncovers the complex relationship between Lydia Becker's botanical research and her stance on women's rights by investigating how her interest in evolutionary theory, as well as her correspondence with Charles Darwin, critically informed her reform agendas by providing her with a new vocabulary for advocating for equality. One of the facts that Becker took away from her work on Lychnis was that even supposedly fixed, dichotomous categories such as biological sex became unfocused under the evolutionary lens. The details of evolutionary theory, from specific arguments on structural adaptations to more encompassing theories on heredity (i.e., pangenesis), informed Becker's understanding of human physiology. At the same time, Becker's belief in the fundamental equality of the sexes enabled her to perceive the distinction between inherent, biological differences and culturally contingent ones. She applied biological principles to social constructs as she asked: Do analogous evolutionary forces act on humans? PMID:23961688