Introduction:Understanding diameter growth of the Mediterranean pine species is fundamental for evaluating and making appropriate strategic decisions in forest management. A matrix diameter growth model for two Mediterranean pine forests ecosystems in Spain has been developed. Methods:Multinomial logistic (MNL) regression was employed to estimate the transition probabilities of a matrix growth model. The model combines individual-tree and stand attributes and explores the effects of independent variables and their relationships with tree size and the probabilities of stand diameter growth. The aim was to predict growth of individual trees by diameter class for a five-year period.Results: MNL model results for diameter growth gave better predictions for Maritime pine (Pinus pinaster Aiton) than for Scots pine (Pinus sylvestris L.). Stand simulations showed that diameter growth probabilities depended on productivity and stand density. Stand simulations under fixed conditions showed that the probabilities of diameter growth increased as site productivity increased and decreased with increased stand density index. Conclusions:This study demonstrates the usefulness of matrix growth models as tools to predict growth in Mediterranean pine forests. Stand density and site productivity are key factors in explaining Scots pine and Maritime pine forest growth in the study area.

Purpose A research-practice team was convened for the Machupicchu World Heritage Site to participate in the Heritage Place Lab (HPL), with the goal of building a practice-informed research agenda designed to support the management needs of the site.Design/methodology/approach The agenda was built based on both the HPL methodology and a complementary one.Findings The proposed agenda centres on three research priorities: (1) Ecosystem services and well-being, (2) local sustainable development and cultural heritage, and (3) mixed-heritage research integration for conservation.Practical implications These priorities address conflicts between the two agencies that manage the site and a lack of awareness of heritage values in contrast to economic interests.Originality/value The article proposes new research-informed strategies for joint working between the managing agencies of a site where conservation needs conflict with public use demands, representing the first such case for Peru.