Hotspots in the grid: avian sensitivity and vulnerability to 
collision risk from energy infrastructure interactions in Europe 
and north Africa

Manuscript number: JAPPL-2021-00483 

Email: j.gauld@uea.ac.uk / jethro.g.gauld@gmail.com with queries

Variable names in sensitivity surfaces:

Categorical variables for mapping: 

Sensitivity to Collision Risks

lss200_c: categorised sensitivity to both transmission power lines and wind turbines in the danger height band 10-200m above ground
wnd_ctg: categorised sensitivity to existing wind turbines in the danger height band 15-135m above ground
tns_ct: categorised sensitivity to transmission power lines in the danger height band 10-60m above ground

Vulnerability to Collision risks: 
i.e. where current conflicts with energy infrastructure exist. 

comb_rs_ : categorised vulnerability to both transmission power lines and wind turbines
trs_rs_ : categorised vulnerability to transmission power lines
wnd_rs_ : categorised vulnerability to wind turbines

Density of energy infrastructure: 

rel_km: relative density of transmission power lines per 5 x 5km grid cell
sum_km: Absolute length of transmission power lines per 5 x 5km grid cell 

rel_dns: relative density of wind turbines
sm_T_nm: total number of turbines present in each 5 x 5 km grid cell (2018 figures)

Numeric variables of importance: 

cmbnd_r: vulnerability score, the higher the value the higher the collision risk experienced by the birds from wind turbines and powerlines
trns_rs: vulnerability score, the higher the value the higher the collision risk experienced by the birds from powerlines
wnd_rsk: vulnerability score, the higher the value the higher the collision risk experienced by the birds from wind turbines 

lss200_s: sensitivity score, the higher the value the higher the sensitivity to new wind turbine or power line development for the tagged birds
trns_sn: sensitivity score, the higher the value the higher the sensitivity to new power line development for the tagged birds 
wnd_sns: sensitivity score, the higher the value the higher the sensitivity to new wind turbine development for the tagged birds  

Wilson Score variables: This describes the proportion of locations in flight at danger height for each infrastructure type adjusted for sample size using the wilson's confidence interval. 
ls200__ : Danger height band 10 - 200m for current and future wind turbine and power line developments
trns_w_ : danger height of 10 - 60m for current transmisison power line heights
wnd_wl_ : danger height of 15 - 135m for current wind turbine designs. 

Raw counts of GPS locations: 

less200 : Danger height band 10 - 200m for current and future wind turbine and power line developments
trans : danger height of 10 - 60m for current transmisison power line heights
wind : danger height of 15 - 135m for current wind turbine designs.
cnt_flg: number of GPS locations in flight
count: total GPS locations from tracking data


Unique identifiers: 

NID: unique ID assigned to each grid cell.