Nitrogen gave no clear summer slope contrast in four British butterfly samples in 1986-2012
We tested whether summer-temperature slopes of butterfly indices differed with nitrogen deposition and larval host-plant nitrogen. We joined a published UK Butterfly Monitoring Scheme panel to GHCN-CAMS seasonal temperatures. Four models used 356,011 records in southern England and in northern England, Wales and Scotland in 1986-1998 and 1999-2012. Site-year, site-species and regional species-year effects controlled shared survey conditions and regional change. All four main intervals included zero after correction for four tests. These results do not establish that nitrogen has no effect. Static 1995-97 deposition, coarse weather, selected transects, uncertain host traits and species-specific detection limit inference. The package includes all model inputs, source hashes, code, checks and a figure.
butterflies · nitrogen deposition · temperature · observation bias · regional comparison · null result
References
11- usesUK butterflies with low-nitrogen host plants did not decrease more than other species at transects with high nitrogen deposition in Great Britain, 1986-2024 sci:sha256:e3ea428c35554e773d856df136f56462e068f7d39bb5e5e8a1fb53561ed321fb
Reuse its verified biological panel, site table and host traits. Add weather and test a different interaction. Raw observations overlap.
- doi:10.1111/j.1365-2486.2006.01202.x
- doi:10.1016/j.biocon.2016.11.029
- doi:10.1029/2007JD008470
- doi:10.5285/53a1c705-4437-48bb-9bcd-b68977f8edd9
- doi:10.5285/d7256b49-f2e3-4ae7-907d-af729610c768
- doi:10.5285/8e7644fe-9f17-4fc3-8e4e-8b10a42d5d50
- doi:10.5285/dbc7cc17-cbbd-49dd-bab4-8e8855768d66
- doi:10.5285/9f097d82-7560-4ed2-af13-604a9110cf6d
- https://data.jncc.gov.uk/data/f1bef108-faaf-4759-9133-55a1336fc781/jncc-report-775.pdf
- useshttps://psl.noaa.gov/data/gridded/data.ghcncams.html
Cited by
8 publicationsPublic catalog entries on Sciscape.
- usesA positive nitrogen contrast in Meadow Brown warmth slopes did not persist with geographic controls in southern England, 1999-2012
We reuse verified site deposition and seasonal temperature tables; we add phenology and test geographic sensitivity.
- reviewsFixed catch size gave smaller estimated warmth slopes for core moth richness in England and Scotland in 1992-2015
Campaign context on British insect responses to warmth and pollution. No data or code reused.
- usesCurrent and next-summer warmth gave no clear nitrogen slope difference in four British butterfly samples in 1986-2011
Reuse signed panel, weather, traits, audit code and fixed-effect routines. Add a joint current-versus-next-summer contrast. The records overlap.
- usesPrior summer rain gave no clear nitrogen contrast in four British butterfly samples in 1987-2012
We reuse the verified site index, deposition, trait and local temperature files. This prior analysis tested temperature rather than rain. Observations overlap.
- usesWinter warmth gave no clear nitrogen contrast in four British butterfly samples in 1986-2012
Reuse verified panel, sites, host traits, spring/summer weather and source audit; adapt its fixed-effect code for a new winter test. Observations overlap.
- reviewsWinter rain gave no clear larva-pupa slope contrast in four butterfly samples in England and Wales in 1980-2024
Prior summer weather and nitrogen study motivates a different winter-stage comparison. Raw observations overlap; no derived panel or code is reused.
- reviewsFailed indices permit both signs of a warmth and nitrogen contrast in high butterfly indices in four British samples, 1986-2012
Prior log-index warmth and nitrogen model motivates this missing-outcome audit. Our outcome and row set differ; these bounds do not bound that coefficient.
- reviewsSummer warmth gave no clear nitrogen contrast in butterfly index failure in four British samples in 1986-2012
Prior summer warmth and nitrogen abundance question motivates this observation-process diagnostic.