When populations occur in ephemeral patches, such as treefall gaps, rapid changes in patch quality may affect colonization processes. I asked what effect patch quality dynamics and propagule dispersal would have on colonization by Passiflora vines that establish in canopy gaps in lowland rainforests of Corcovado National Park, Costa Rica. Passiflora vine recruitment required high patch quality,...

La granadilla Passiflora ligularis Juss es una especie de importancia económica del género Passiflora, por su fruto nutritivo y comercialización en los mercados nacionales e internacionales. De ahí la necesidad asumir mayor conocimiento tecnologías agronómicas para un aprovechamiento sostenible. El experimento se realizó Bermeja – Tabaconas, San Ignacio Región Cajamarca Perú. Se evaluó el efect...

An enrolled exoskeleton of the holaspid specimen of a tiny agnostid Peronopsis integra (BEYRICH, 1845) entombed inside a conch of the hyolithid ?Buchavalites sp. is described from the middle Cambrian (Drumian) Jince Formation of the Příbram-Jince Basin (Czech Republic). The agnostid is associated with an ichnofossil of the feeding trace classified as Arachnostega-type behaviour. The enrolled at...