Forest dynamics of a sub-xerophilous vegetation formation in central Peru - Chanchamayo Valley, Peru

• Autores: Palacios-Ramos, S, Montenegro, R, Linares-Palomino, R, Reynel, C
• Formato: artículo
• Fecha de Publicación: 2018
• Institución: Consejo Nacional de Ciencia Tecnología e Innovación
• Repositorio: CONCYTEC-Institucional
• Lenguaje: inglés
• OAI Identifier: oai:repositorio.concytec.gob.pe:20.500.12390/1023
• Enlace del recurso: https://hdl.handle.net/20.500.12390/1023; https://doi.org/10.1590/1806-90882018000600003
• Nivel de acceso: acceso abierto
• Materia: Reclutamiento; Bosque seco; Mortalidad; https://purl.org/pe-repo/ocde/ford#1.06.10

Studies about the complex processes of forest dynamics in pre-montane and montane forests (between 600 - 3000 m altitude) are rare. This study contributes to our knowledge on changes in the floristic composition and population dynamics of woody species in a sub-xerophilous formation immersed in the humid pre-montane and montane forests of Peru. In 2015 we re-measured trees with diameter at breast height equal or greater than10cm in a permanent plot established in 2009. We recorded 31 species of 25 families, with a Fisher's Alpha diversity index of 7.5. The most abundant and dominant species (including Heteropterys intermedia, Physocalymma scaberrimum, Sapium glandulosum, Tachigali peruviana and Machaerium hirtum) represented 66.25% of all species in 2009 and 66.36% in 2015. The prevalence of these species and others ensures the maintenance of a characteristic seasonally dry forest formation within the census period (6.25 years). The dynamics of this forest, with a high rate of recruitment (3.82%) and a low rate of mortality (0.72%), show favorable conditions for the maintenance of this forest fragment.