REVISITING GALL ANATOMY THROUGH A FUNCTIONAL-TRAIT APROACH ACROSS ENVIRONMENTAL GRADIENTES

##Dataset title Revisiting gall anatomy through a functional-trait approach across environmental gradients ##Authors Filipe Gomes-Silva and Renê Gonçalves Silva Carneiro ###Related publication Gomes-Silva, F. and Carneiro, R.G.S. Revisiting gall anatomy through a functional-trait approach across environmental gradients. ##Dataset overview This archive contains the data and R analysis code associated with the above manuscript. Through a systematic literature search (Web of Science and Scopus, November 2023), we compiled published histological records of mature leaf galls that allowed identification of anatomical traits, following standardized terminology from Ferreira et al. (2019). Seven binary anatomical traits (indumentum, cuticle thickness, epidermis/periderm thickness, sclerenchyma, hypertrophy, hyperplasia, and parenchyma homogenization) and a continuous Tissue Investment Index (TII, calculated as the ratio between external and internal compartment thickness) were used to characterize gall morphotypes. Collection sites were georeferenced and matched to climatic variables (mean annual temperature, precipitation, relative humidity, and solar radiation) from INMET (Brazilian sites) and the Copernicus Climate Data Store (international sites). Traits and TII were ordinated via Principal Coordinates Analysis (PCoA) on a Gower dissimilarity matrix, classified into clusters via Ward's hierarchical clustering, related to environmental predictors via distance-based redundancy analysis (db-RDA), and tested against humidity/radiation via GLM/GLMM model selection. The dataset is predominantly composed of Cerrado and Atlantic Forest systems. The accompanying R script contains the code used for all statistical analyses and figures reported in the manuscript.### General terminology and abbreviations# Gall: insect-induced plant structure formed in response to oviposition/feeding by a galling insect.# TII: Tissue Investment Index (continuous; log-transformed for analyses as TII_log).# Morphotype: gall morphological category (Morfotipo).# Cluster: group assignment (1–3) derived from hierarchical clustering of PCoA scores.# Binary anatomical traits: presence/absence (1/0) of the following tissue features — indumentum (Ind), thickened cuticle (Cut), thickened epidermis (Epi), sclerenchyma (Esc), hypertrophy (Htr), hyperplasia (Hpl), parenchymal homogenization (Hop).# Fam_plant / Fam_inset: host-plant family and gall-inducing insect family, respectively.# Habitat: vegetation type/habitat classification of the sampling site. ###Worksheet/column descriptions and variables - dados_brasil_COM_SCOPUS.csv This file contains one row per gall record, compiled from published literature (with Scopus source tracking), with the following columns: # Lat, Long: geographic coordinates (decimal degrees) of the sampling site.# Precip: mean annual precipitation at the sampling site.# Temperatura: mean annual temperature at the sampling site.# Umidade: relative humidity at the sampling site.# Radiacao: solar radiation at the sampling site.# Ind: indumentum presence/absence (binary).# Cut: cuticle thickening presence/absence (binary).# Epi: epidermis thickening presence/absence (binary).# Esc: sclerenchyma presence/absence (binary).# Htr: hypertrophy presence/absence (binary).# Hpl: hyperplasia presence/absence (binary).# Hop: parenchymal homogenization presence/absence (binary).# TII: Tissue Investment Index (continuous).# Morfotipo: gall morphotype category.# Fam_plant: host-plant family.# Fam_inset: gall-inducing insect family.# Habitat: habitat/vegetation type of the sampling site. ###Data collection location Records were compiled from published studies on Neotropical galls, georeferenced by collection site (Lat/Long). The dataset is predominantly composed of Cerrado and Atlantic Forest sites in Brazil, with additional international records; the Amazon Basin, Pantanal, and Pampas remain comparatively under-sampled. ###Recommended citation for this dataset Gomes-Silva, F. and Carneiro, R.G.S. [Ano]. Data and code for: Revisiting gall anatomy through a functional-trait approach across environmental gradients.###Contact For questions about the dataset or code, please contact the corresponding author listed in the associated publication.