Unmasking hidden genetic, vocal, and size variation in the Masked Flowerpiercer along the Andes supports two species separated by Northern Peruvian Low

Genetic divergence among isolated populations is not always reflected in phenotypic differentiation. We investigated the genetic and phenotypic differentiation in Diglossa cyanea (Thraupidae; Masked Flowerpiercer), a widely distributed species in the tropical Andes. We found strong evidence for two main lineages separated by the Marañón River valley in the Northern Peruvian Low (NPL). These two lineages show a deep sequence divergence in mitochondrial DNA (mtDNA; ~6.7% uncorrected p-distance, n = 122), spectral frequency and song structure (with exclusive final whistles in southern populations, n = 88), and wing length (the northern populations are smaller, n = 364). The two divergent D. cyanea mitochondrial lineages were not sister to each other, suggesting a possible paraphyly with respect to D. caerulescens (Bluish Flowerpiercer) that remains to be tested with nuclear genomic data. No genetic variation, size difference or song structure was observed within the extensive range of the ..., Please see the README.md file (README_ORNITH-23-023_UnmaskingDiglossaNPL.md) and the accompanying published article: Silvia C Martínez-Gómez, Carlos Esteban Lara, J V Remsen, Robb T Brumfield, Andrés M Cuervo. Unmasking hidden genetic, vocal, and size variation in the Masked Flowerpiercer along the Andes supports two species separated by Northern Peruvian Low. Ornithology, Volume 140, Issue 4, 5 October 2023, ukad028, https://doi.org/10.1093/ornithology/ukad028, , File name: README_ORNITH-23-023_UnmaskingDiglossaNPL.md

# Data from \"Unmasking hidden genetic, vocal, and size variation in the Masked Flowerpiercer along the Andes supports two species\" ORNITH-23-023

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* Dataset Title: Data for the article \"Unmasking hidden genetic, vocal, and size variation in the Masked Flowerpiercer along the Andes supports two species\"
* Authors: Silvia C, Martínez-Gomez, Carlos Esteban Lara, J. Van Remsen Jr., Robb Brumfield, Andrés M. Cuervo
* Date created: 2023-05-23
* Date modified: 2023-05-29
* Persistent identifier: DOI: 10.5061/dryad.fj6q5740r
* Description: This dataset contains the raw vocal and morphometrical data, in addition to the R script used for the vocal and morphological analyses of the mentioned study.

## Data and File Overview

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* Files:
* ORNITH-23-023_MainSongData.csv
* ORNITH-23-023_AlternVSMainSongData.csv
* ORNITH-23-023_MorphoData.csv
* ORNITH-23-023_DataAnalysis.R

The...