, PINCHEIRA ULBRICH, JIMMY MARCELO, PEÑA CORTES, FERNANDO ANDRES, Pincheira-Ulbrich, Jimmy M., Mansilla, Elías Andrade, Peña-Cortés, Fernando Andrés, Fernández, Cristián Vergara

Background Species lists are fundamental for knowledge of species diversity in regions subject to intense anthropogenic pressure, especially in poorly-studied ecosystems. The dataset comes from an inventory conducted in 30 fragments of Myrtaceae swamp forest, located in an agroforestry matrix landscape of the coastal La Araucanía Region in Chile. The data collection was carried out using line transect sampling, which was traced through the core of each fragment orientated towards its longest axis. The dataset provides a record of 55 species (24 trees, 1 vine [as a host], 16 herbs and 15 shrubs) including accidental epiphytes (n = 7), hemiparasites (n = 4), host (n = 10) and additionally woody debris (n = 36). The most frequent trees in the landscape were Myrceugenia exsucca (n = 36 records) and Blepharocalyx cruckshanksii (n = 33 records), species that were also the most common hosts. Drimys winteri was a companion species, other trees and shrubs generally being rarely observed, as was the case of the introduced species (Prunus avium, Rubus constrictus and Ulex europaeus). Branches were the most common microhabitat forhemiparasites. Within this group, Lepidoceras chilense was the most frequent species. For accidental epiphytes, Drimys winteri, which commonly grows on the ground (soil), were the most common species found in the main trunk crotch. Some unusual observations were the climber Cissus striata as host of Tristerix corymbosus (hemiparasite) and Tristerix corymbosus as host of Lepidoceras chilense (hemiparasite). New information This study represents a landscape-scale sample of the swamp forest, which is distributed in a dispersed pattern over a large stretch of Chile. The data were collected from 30 forest patches (from 0.05 to 936 ha), located on the coast of the Araucanía. The database includes the presence of 55 species of vascular plants in 356 records. The main novelty of this contribution is the systematic classification of species under six traits, never before reported in the same database: (i) condition (coarse woody debris, fallen log, live, snag), (ii) habit (herb, shrub, tree), (iii) growth microhabitat (e.g. tree trunk, branch, main trunk crotch), (iv) growth form (accidental epiphyte, hemiparasite, terricolous, vegetative), (v) host species (as appropriate) and (vi) relative location of the species in the sampled patch and surrounding areas (core, border, matrix). Species not previously observed in these forests were: Gavilea spp., Hieracium spp., Lophosoria quadripinnata, Berberis actinacantha, Gaultheria phillyreifolia, Ovidia pillo-pillo, Amomyrtus meli and Caldcluvia paniculata. In addition, two introduced species are novelties for the catalogue of vascular plants of Chile (Cupressus macrocarpa and Prunus avium). Several of these ecosystem traits are indeed new reports for these types of forests (e.g. accidental epiphytes, fallen logs, species-host relationship); at the same time, more frequent data (i.e. species composition, habit) are found in different contributions, making the comprehensive process of analysis difficult. Accordingly, the database is made available in this manuscript. © 2025 Elsevier B.V., All rights reserved.

, PEÑA CORTES, FERNANDO ANDRES, PINCHEIRA ULBRICH, JIMMY MARCELO, Arévalo-Valenzuela, Pablo, Peña-Cortés, Fernando Andrés, Pincheira-Ulbrich, Jimmy M.

Coastal dunes can offer a series of Ecosystem Services (ES), especially to local communities. This study aimed to evaluate these benefits by exploring the perception of the Mapuche communities and representatives of the local government concerning the ES provided by the coastal dune fields of the Araucanía Region of Chile. Binary, multiple-choice, Likert scale and open questions were used to explore the general knowledge of 49 subjects about the ES provided by the dunes. Closed questions were analysed using Fisher's exact test, and tests of goodness of fit chi-square and G, while open questions were analysed by qualitative content analysis. The results showed that (1) cultural services were more important for Mapuche communities, while tourism was more valued for local government, (2) tourism and stock-raising were the most frequent use given to the dunes in the opinion of local government and Mapuche communities respondents, respectively, (3) both groups think that dunes offer habitat for biodiversity, and (4) the regulation of natural processes is one of the most important functions for both groups, although Mapuche communities consider that dune fields would not attenuate the effects of a tsunami. The conclusion is that dune fields offer a series of benefits, which are perceived in different ways by Mapuche communities and representatives of the local government. The lack of recognition of this knowledge is one of the main gaps in Chile's territorial planning instruments since it could make a decisive contribution to the management of social-ecological systems by zoning areas and identifying singular components, especially in Mapuche territories. © 2020 Elsevier B.V., All rights reserved.