Landscape heterogeneity increases bird functional diversity within Neotropical vineyards

Conversion of lands to agroecosystems has resulted in a decline in bird biodiversity. Analyzing functional diversity is a central tool for detecting changes in the ecological functions performed by birds in these landscapes. This paper aims to investigate the responses of bird taxonomic and functional diversity to landscape heterogeneity and native forest cover in Neotropical vineyards. We sampled 19 vineyard landscapes in southeastern Brazil. These landscapes covered a gradient of forest cover and heterogeneity resulting from various land uses. To assess bird diversity, we considered both taxonomic diversity and functional diversity (i.e., functional richness, evenness, and divergence). To examine the potential interactions between landscapes and bird assemblages, we employed generalized linear models (GLM). Taxonomic diversity showed no correlation with any landscape metrics. On the other hand, variation in the three metrics of functional diversity was related to landscape heterogenei..., A. Landscape metrics
Fieldwork was conducted in a rural area of ~40,000 ha in São Miguel Arcanjo, a significant region for grape production in Brazil. The study areas were carefully chosen based on high-resolution images obtained from ArcGIS 10.3 base map imagery, which was captured by DigitalGlobe satellites in 2016 with a scale of 1:5000 and a resolution of 0.5 m2. Seven distinct land-use classes (remnants of Atlantic Forest, regenerating forests, Eucalyptus plantations, grape plantations, other agricultures, open areas, and urban areas) were manually delineated using ArcGIS (ESRI) within the study area. To ensure accuracy, field validation was conducted in 2016 and 2017, and any errors in interpretation were rectified. For each polygon identified as a grape plantation, a central point within the vineyards was selected, and buffers with a radius of 100, 250, 500, 750, and 1,000 m were established around it. Nineteen sampling sites located at least 1,000 m from each other were selected..., , # Landscape heterogeneity increases bird functional diversity within Neotropical vineyards

[https://doi.org/10.5061/dryad.r4xgxd2n2](https://doi.org/10.5061/dryad.r4xgxd2n2)

The dataset has landscape metrics (1), including forest cover and landscape heterogeneity in buffers of 100, 250, 500, 700, and 1000 m, and raw data from bird count points (2) around 19 vineyards in southeastern Brazil.

## Description of the data and file structure

### **Identity: (1) LandscapeMetrics.csv, (2) Birds\_CountPoints.csv**

(1) 20 records (including header) and 11 fields. The total file size is 2 kb.

(2) 150 records (including header) and 20 fields. The total file size is 9 kb.

## **Variable information**

### **Table 1. Summary of variable information for file (1) – Landscape metrics**

| **Variable** | **Description** | **Type** |
| :----------- | :--------------------------------------------------------------------------...