Local sub-population dynamics of a Central European Grey Partridge meta-population support a large-scale conservation approach to halt its ongoing decline

Many farmland birds such as the Grey Partridge (Perdix perdix) are experiencing sharp declines across Europe, which can lead to fragmentation and increasing isolation of local populations. Understanding the population dynamics of these local populations is becoming increasingly important for effective conservation efforts. In this study, we used data from Grey Partridge transect counts with call play-back from 2006 to 2023 to investigate the population dynamics of a Grey Partridge population in central Germany. We employed Generalized Linear Mixed Models to model the long-term meta-population trend and assessed synchrony between local sub-populations by calculating the cross-correlation and the Loreau & de Mazancourt community-wide synchrony. Additionally, we assessed stability by comparing the extent of yearly fluctuations between sub-populations and the regional meta-population by analysing variances. Our analysis revealed that the studied meta-population remained stable over the ..., Detailed information on data sampling and processing can be found in the corresponding article: Laux, A., Gottschalk, E. Local sub-population dynamics of a Central European Grey Partridge meta-population support large-scale conservation approach to halt its ongoing decline. Wildlife Biology. https://doi.org/10.1002/wlb3.01316, , # Local sub-population dynamics of a Central European Grey Partridge meta-population support a large-scale conservation approach to halt its ongoing decline

[https://doi.org/10.5061/dryad.m0cfxppbk](https://doi.org/10.5061/dryad.m0cfxppbk)

## Description of the data and file structure

Grey Partridge counts (males) with call playback along transects

Date of data collection:

2006/02 - 2023/03

Geographic location of data collection: District of Göttingen, Germany

### Files and variables

#### File: Rscript\_Laux\_Gottschalk\_2024\_WildlifeBiology.R

**Description:** R-script containing the code used for the analysis in the second revision of the manuscript 'Population dynamics of a Central European Grey Partridge population support large-scale conservation approach'.

#### File: data\_transects.csv

**Description:** Contains data for all transects used in the analysis: number of calling males, year, area, round, transect, transect length, buffer area, observer, coordinates of the ce...