NERÉIDIDOS (NEREIDIDAE, POLYCHAETA, ANNELIDA) ASOCIADOS A RAÍCES DE MANGLE ROJO, RHIZOPHORA MANGLE, EN ISLAS SAN ANDRÉS Y PROVIDENCIA, CARIBE COLOMBIANO

Desafíos de la conservación del mangle en el antropoceno

This essay addresses the conservation issues facing mangroves in the Anthropocene, defined as the era of human domination over the world. We review the laws, policies, international agreements, and local actions that address the conservation of mangrove forests in the Neotropics and relate them to the Anthropocene. Collaboration between governments, non-governmental organizations, and communiti...

Chromosomal Pairing and Pollen Viability in Rhizophora mangle and Rhizophora stylosa Hybrids

Two prominent mangrove species of Fiji, Rhizophora mangle, Linn. Rhizophora stylosa Griff and their puative hyubrid (R x selala) were analysed for chromosome number and pairing. Both parental species and their hybrid possess a diploid number of (2n) = 36 chromosomes. Regular 18 bivalents were observed in two species but the hybrid lacked proper chromosome pairing during meiosis. Analysis of tet...

Reforma de los sistemas de salud en América Latina y el Caribe: situación y tendencias

A principios de la década de los noventa, casi todos los países de América Latina y el Caribe estaban iniciando, o considerando iniciar, reformas del sector de la salud. El presente trabajo presenta un análisis de la situación de dichas reformas y sus tendencias a finales de la década de los noventa. Para ello los autores han partido de la información contenida en los 20 perfiles de sistemas de...

Diterpenes and a new benzaldehyde from the mangrove plant Rhizophora mangle

This work describes the isolation, by high-speed counter-current chromatography, of the diterpenes manool, jhanol and steviol and the benzaldehyde p-oxy-2-ethylhexyl benzaldehyde from the stilt roots hexane extract of the mangrove plant Rhizophora mangle L., Rhizophoraceae. For this, a non-aqueous biphasic solvent system composed of hexane–acetonitrile–methanol 1:1:0.5 (v/v/v) was applied. As f...

The Mangle of Practice