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Brown frog breeding phenology in south Sweden 1990 – 2017 : Are data subsets robust?

Loman, Jon LU (2019) In Herpetological Bulletin p.9-14
Abstract

- Field data on breeding phenology of Ranaarvalis and R.temporaria for the period 1990- 2017 in Scania, Sweden are presented and analysed. There was no temporal trend for R.temporaria. ForR.arvalisthe results were mixed, one out of two approaches found a trend to earlier breeding. The lack of a consistent trend in breeding phenology is unsurprising considering that local mean air temperatures in February, March and April showed no significant trends over the study period. To test the robustness of the conclusion, different subsets of the data (years or ponds) were also analysed for trends. For most subsets the conclusions remained the same. Possible bias arising from the choice of which years to include in an analysis of trends is... (More)

- Field data on breeding phenology of Ranaarvalis and R.temporaria for the period 1990- 2017 in Scania, Sweden are presented and analysed. There was no temporal trend for R.temporaria. ForR.arvalisthe results were mixed, one out of two approaches found a trend to earlier breeding. The lack of a consistent trend in breeding phenology is unsurprising considering that local mean air temperatures in February, March and April showed no significant trends over the study period. To test the robustness of the conclusion, different subsets of the data (years or ponds) were also analysed for trends. For most subsets the conclusions remained the same. Possible bias arising from the choice of which years to include in an analysis of trends is discussed.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Herpetological Bulletin
issue
147
pages
6 pages
publisher
British Herpetological Society
external identifiers
  • scopus:85065462351
ISSN
1473-0928
DOI
10.33256/hb147.914
language
English
LU publication?
yes
id
a53674d8-f77e-4cbd-88fd-019f080dcde9
date added to LUP
2019-05-24 13:31:58
date last changed
2022-04-26 00:42:20
@article{a53674d8-f77e-4cbd-88fd-019f080dcde9,
  abstract     = {{<p>- Field data on breeding phenology of Ranaarvalis and R.temporaria for the period 1990- 2017 in Scania, Sweden are presented and analysed. There was no temporal trend for R.temporaria. ForR.arvalisthe results were mixed, one out of two approaches found a trend to earlier breeding. The lack of a consistent trend in breeding phenology is unsurprising considering that local mean air temperatures in February, March and April showed no significant trends over the study period. To test the robustness of the conclusion, different subsets of the data (years or ponds) were also analysed for trends. For most subsets the conclusions remained the same. Possible bias arising from the choice of which years to include in an analysis of trends is discussed.</p>}},
  author       = {{Loman, Jon}},
  issn         = {{1473-0928}},
  language     = {{eng}},
  number       = {{147}},
  pages        = {{9--14}},
  publisher    = {{British Herpetological Society}},
  series       = {{Herpetological Bulletin}},
  title        = {{Brown frog breeding phenology in south Sweden 1990 – 2017 : Are data subsets robust?}},
  url          = {{http://dx.doi.org/10.33256/hb147.914}},
  doi          = {{10.33256/hb147.914}},
  year         = {{2019}},
}