Unexpected high diversity of galling insects in the Amazonian upper canopy: The savanna out there

A relatively large number of studies reassert the strong relationship between galling insect diversity and extreme hydric and thermal status in some habitats, and an overall pattern of a greater number of galling species in the understory of scleromorphic vegetation. We compared galling insect diversity in the forest canopy and its relationship with tree richness among upland terra firme, várzea, and igapó floodplains in Amazonia, Brazil. The soils of these forest types have highly different hydric and nutritional status. Overall, we examined the upper layer of 1,091 tree crowns. Galling species richness and abundance were higher in terra firme forests compared to várzea and igapó forests. GLM-ANCOVA models revealed that the number of tree species sampled in each forest type was determinant in the gall-forming insect diversity. The ratio between galling insect richness and number of tree species sampled (GIR/TSS ratio) was higher in the terra firme forest and in seasonally flooded igapó, while the várzea presented the lowest GIR/TSS ratio. In this study, we recorded unprecedented values of galling species diversity and abundance per sampling point. The GIR/TSS ratio from várzea was approximately 2.5 times higher than the highest value of this ratio ever reported in the literature. Based on this fact, we ascertained that várzea and igapó floodplain forests (with lower GIA and GIR), together with the speciose terra firme galling community emerge as the gall diversity apex landscape among all biogeographic regions already investigated. Contrary to expectation, our results also support the "harsh environment hypothesis", and unveil the Amazonian upper canopy as similar to vegetation habitats, hygrothermically stressed environments with temperature at lethal limits and high levels of leaf sclerophylly. © 2014 Julião et al

Liderança em enfermagem psiquiátrica Liderazgo en enfermería psiquiátrica Leadership in psychiatric nursing

O processo de liderança em enfermagem psiquiátrica é uma temática que deve ser cuidadosamente abordada e amplamente discutida. Contudo, poucas são as fontes científicas acerca do assunto. Assim sendo, buscou-se através deste ensaio refletir a liderança e as suas várias formas de abordagem em psiquiatria ao longo dos tempos, sendo possível certificar sua evolução. A assistência de qualidade deve ser o objetivo único e primordial e a liderança na enfermagem psquiátrica deve estar baseada no reconhecimento das necessidades desta clientela e nas qualidades de sua equipe. Este muitas vezes constitui um desafio para os profissionais enfermeiros, permitindo um maior crescimento profissional. E é justamente o preparo do profissional que auxiliará no bom andamento do tratamento do paciente psiquiátrico, alcançando um resultado satisfatório<br>El proceso de liderazgo en enfermería psiquiátrica es un tema que debe ser cuidadosamente abordado y extensamente discutido. Sin embargo, pocas son las fuentes científicas referentes al tema. De esta manera, hubo una búsqueda a través de este trabajo sobre el liderazgo y sus varias formas de abordaje en psiquiatría a través de los tiempos, siendo posible certificar su evolución. La ayuda de calidad debe ser el único y primordial objetivo y el liderazgo del enfermero debe estar basada en el reconocimiento de las necesidades de la clientela y en las calidades del equipo. Tal reflexión muchas veces constituye un desafío para los enfermeros profesionales, permitiendole un crecimiento profesional mayor. Es exactamente la preparación del profesional que ayudará al buen curso del tratamiento del paciente psiquiátrico, alcanzando un resultado satisfactorio.<br>The process of leadership in psychiatric nursing is a thematic that must be carefully boarded and be widely argued. However, few are the scientific sources concerning the subject. In this way, it was seek through this work reflecting the leadership and its some forms of boarding in psychiatry through the times, being possible to certify its evolution. The quality assistance must be the only and primordial objective and the leadership of the nurse must be established in the recognition of the necessities of the clientele and in the qualities of the team. Such reflection many times constitutes a challenge for the professional nurses, allowing a bigger professional growth. It is exactly the preparation of the professional who will assist in the good course of the treatment of the psychiatric patient, reaching a satisfactory result