READ ME File For 'Quantification of piscivorous predator presence in a beaver castor fiber modified freshwater ecosystem'

Dataset DOI: 10.5258/SOTON/D3836

Date that the file was created: January, 2026

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GENERAL INFORMATION
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ReadMe Author: Robert Needham, Paul Kemp, University of Southampton

Date of data collection: March 2016 - March 2017

Information about geographic location of data collection: Allt a' Choilich and Allt Coire an t-Seilich, Beauly, Scotland

Related projects:
Needham, R.J., Gaywood, M., Tree, A., Sotherton, N., Roberts, D., Bean, C.W. and Kemp, P.S., 2021. The response of a brown trout (Salmo trutta) population to reintroduced Eurasian beaver (Castor fiber) habitat modification. Canadian Journal of Fisheries and Aquatic Sciences, 78(11), pp.1650-1660.

Needham, R.J., Zabel, R.W., Roberts, D. and Kemp, P.S., 2025. The impact of reintroduced Eurasian beaver (Castor fiber) dams on the upstream movement of brown trout (Salmo trutta) in upland areas of Great Britain. PloS one, 20(2), p.e0313648.

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SHARING/ACCESS INFORMATION
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Licenses/restrictions placed on the data, or limitations of reuse:CC BY 4.0

Recommended citation for the data:Needham, R., & Kemp, P. (2026) Dataset for Quantification of piscivorous predator presence in a beaver castor fiber modified freshwater ecosystem. University of Southampton Research Repository.https://doi.org/10.5258/SOTON/D3836 

This dataset supports the publication:
AUTHORS: NEEDHAM, Robert & KEMP, Paul
TITLE: Quantification of piscivorous predator presence in a beaver castor fiber modified freshwater ecosystem
JOURNAL: FRESHWATER BIOLOGY
PAPER DOI IF KNOWN:70165

Links to other publicly accessible locations of the data:

Links/relationships to ancillary or related data sets: 


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DATA & FILE OVERVIEW
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This dataset contains:

Beaver_Heron_Trout Dataset.xlsx


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METHODOLOGICAL INFORMATION
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Description of methods used for collection/generation of data: Remote camera monitoring and electro-fishing surveys

Methods for processing the data: Data was generated through analysis of the raw camera footage

Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers:NA

Standards and calibration information, if appropriate:NA

Environmental/experimental conditions:

Describe any quality-assurance procedures performed on the data:

People involved with sample collection, processing, analysis and/or submission:Robert Needham and Paul Kemp


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DATA-SPECIFIC INFORMATION <Create sections for each datafile or set, as appropriate>
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Sheet - Predation Results Final_12 Month

Number of variables:9

Number of cases/rows: 121

Variable list, defining any abbreviations, units of measure, codes or symbols used:Month, TotCount (Total Count), HPM (Heron per metre), Location, Season 1, Season, Year, TreatSeas (Treatment and Season combined)
   
Sheet - Heron Fish Correlation

Number of variables:8

Number of cases/rows: 43

Variable list, defining any abbreviations, units of measure, codes or symbols used:Location, Treatment (Beaver modified or Control), Season, SeasTreat (Season and Treatment combined), HPM (Heron per metre), Trout (Abundance trout fish per river metre), Depth (Water Depth), Age (Young of year - A all age classes excluding young of year - B)

Sheet - Heron Depth Correlation

Number of variables:7

Number of cases/rows: 31

Variable list, defining any abbreviations, units of measure, codes or symbols used:Location, Treatment (Beaver modified or Control), Season, SeasTreat (Season and Treatment combined), HPM (Heron per metre), Depth (Water Depth), Habitat (Pool, riffle or glide)