Unraveling the genetic parameters, social relationships and conservation aspects of a group of Touit melanonotus ( Brown-backed Parrotlet)

The genetic parameters underlying the biological and behavioral traits of most Neotropical parrots are poorly understood due to limited sampling. Touit melanonotus is a globally Near Threatened, rare, unobtrusive, and small-bodied parrotlet endemic to the Atlantic Forest of Brazil. In 2020, a flock of T. melanonotus collided with a window at São Paulo International Airport in Guarulhos, São Paulo State, Brazil, resulting in the death of 29 individuals. We aimed to assess the genetic diversity of this flock, estimate the effective population size, and conduct a pairwise kinship analysis to explore flock formation, behavior, and the familial structure of this species. To that end, we used single-nucleotide polymorphisms (SNPs) derived from genome-wide ultraconserved elements (UCEs) of the flock. We observed a higher than expected genetic diversity (t = 7.243, p~0) and no evidence of inbreeding depression, with F ranging from -0.406 to -0.110 (χ2 = 37.687, p = 0; χ2 = 4.217, p = 0.040, res..., , # Unraveling the genetic parameters, social relationships and conservation aspects of a group of Touit melanonotus ( Brown-backed Parrotlet)

Published in *Ornithological Applications*, 2025

#### Repository Contents

This repository contains the input files, scripts, and result summaries used in the analyses described in the manuscript.

**Files Included**

| File | Description |
| ---------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `2touit_snps_total.vcf` | Raw SNP matrix (VCF format) before any filtering. |
| `toui...,