2024_Weeklyspecies_richness_abundance_selectedWNV_birdhosts_ Ebirddata

Abstract:

Raw weekly abundance data at 3km resolution was downloaded from EBIRD (https://science.ebird.org/en/use-ebird-data) for 12 listed WNV bird hosts.  These data were converted to presence-absence and then combined to give a species number each week.  The abundance data were also processed to provide the Sum and Mean abundance for every week.  

If a species is missing, a weekly dataset is removed from the Mean value calculations for that week.  To maintain a constant maximum presence number in the summed number of present species,  missing weeks are filled with the last valid presence week up to halfway through the gap in availability, then with the first available distribution after the gap.

Species list: Carrion Crow; Wood Pigeon, European Collared Dove; European Blackbird; European Jackdaw; European Jay; European Kestrel; European Magpie; Herring Gull, Hooded Crow; House Sparrow; Little Owl.

File naming scheme: 

Files are:

e4ebirdweeklyabundancemarini: all weekly abundance datasets at 3km resolution. 

e4ebirdweeklyPAMarini: abundance with missing recoded to 0.  This is based on ad hoc checks of weekly datasets against the birdlife species ranges,  which suggest that the maximum extents of combined weekly abundance distributions match the range boundaries fairly well.

e4ebirdweeklyspprichnesMariniSUMMEANweeklymarini: summed and mean weekly presence-absence for all species. 

Projection + EPSG code:Latitude-Longitude/WGS84 (EPSG: 4326)

Spatial extent:Extent   -32.0000000000000000,10.0000000000000000 : 68.9999999999999574,81.9999999999999716

Spatial resolution:3km

Pixel values:Number of species per pixel for each category

Source: 

Data obtained from Ebird  https://science.ebird.org/en/status-and-trends/species/

Software used:ArcMap 10.8

License: CC-BY-SA 4.0

Processed by:ERGO (Environmental Research Group Oxford) https://ergoonline.co.uk/ for the H2020 MOOD project