Data from: Does nocturnal light pollution impair immune function in a wild-living amphibian?

Light pollution is among the most rapidly growing anthropogenic stressors
on Earth. Experimental studies suggest that light pollution have
deleterious effects on metabolism and immunity (among others) of animals.
The aim of this study was to assess, for the first time, whether the
effects of light pollution on immunity previously reported in experimental
studies, are also observable in a wild species. To do so, we measured a
large set of body condition and immune traits, to obtain a comprehensive
picture of individuals’ health, in 15 natural populations of common toads
(Bufo bufo) distributed along a gradient of exposure to light pollution.
We measured these sites' exposure to light pollution and because we
expected that other landscape features would covary with light pollution,
additional landscape variables associated with urbanisation and climate
were extracted: altitude (as a proxy of ambient temperature); the
percentage of forest, urban, agricultural and wetlands areas in a buffer
of 500 meters around the pond of toads’ capture were calculated. Ethics.
The protocols of capture and blood sampling of toads were approved by the
French Government via prefectural decrees n° 69-2023-01-20-00005 for the
Rhône department; n° DDPP01-23-044 for the Ain department; n°
38-2023-02-21-00003 for the Isère department. All experiments were
performed in accordance with guidelines and regulations of the Ethical
Committee of Lyon 1 University (project APAFIS #41025-2023021713471183,
20th February, 2023).