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Micro-scale spatial...
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Stedt, JohannaLund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Akvatisk ekologi,Forskargrupper vid Lunds universitet,CAnMove - Centrum för forskning om djurs spridning och flyttning,Division aquatic ecology,Department of Biology,Faculty of Science,Aquatic Ecology,Lund University Research Groups,CAnMove - Centre for Animal Movement Research,Lund Univ, Dept Biol, S-22362 Lund, Sweden
(författare)
Micro-scale spatial preference and temporal cyclicity linked to foraging in harbour porpoises
- Artikel/kapitelEngelska2023
Förlag, utgivningsår, omfång ...
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Inter-Research Science Center,2023
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:204e4446-4743-439e-b71b-e353f7362849
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https://lup.lub.lu.se/record/204e4446-4743-439e-b71b-e353f7362849URI
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https://doi.org/10.3354/meps14268DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-505285URI
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Språk:engelska
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Sammanfattning på:engelska
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Habitat heterogeneity is a crucial driver for species distribution across scales. Harbour porpoise Phocoena phocoena basin-wide distribution is linked to prey availability, and small-scale (kilometres to tens of kilometres) differences in distribution are prevalent. However, information on porpoise distribution and foraging-behaviour variations on a micro-scale (~100 m to kilometres) is limited. To monitor harbour porpoise distribution and foraging activity on a micro-scale, we deployed passive acoustic dataloggers, logging porpoise acoustic activity at 6 sites in a small, high porpoise-density area in southern Sweden. Data were collected for almost a year, giving detailed time series on porpoise activity. The time series were analysed using dynamic time warping to compare activity patterns between sites. Large differences were found between sites separated by only a few hundred meters, indicating micro-scale spatial preference. Spectral analysis for temporal cyclicity in activity revealed a dominant peak for 24 h cycles with higher activity at night for all sites. All sites also had a second peak for 29.5 d, linked to the lunar cycle with higher activity during full moon. Activity was overall highest during autumn and winter (September-December). Spatial and temporal patterns were linked to foraging, showing a positive correlation between porpoise presence and the percent of time present with detected foraging. The study demonstrates that harbour porpoise spatial distribution on a micro-scale should be considered in e.g. behavioural, management and conservation studies and actions. In addition, we show that time series statistical methodology is informative and appropriate for analysis of acoustic temporal data.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Wahlberg, MagnusUniversity of Southern Denmark,Univ Southern Denmark, Dept Biol, DK-5230 Odense, Denmark
(författare)
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Carlström, JuliaSwedish Museum of Natural History,Swedish Museum Nat Hist, Dept Environm Res & Monitoring, S-10405 Stockholm, Sweden
(författare)
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Nilsson, AndersLund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Akvatisk ekologi,Forskargrupper vid Lunds universitet,Division aquatic ecology,Department of Biology,Faculty of Science,Aquatic Ecology,Lund University Research Groups,Lund Univ, Dept Biol, S-22362 Lund, Sweden(Swepub:lu)ekol-ani
(författare)
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Amundin, MatsKolmårdens Djurpark,Kolmarden Wildlife Pk, S-61893 Kolmarden, Sweden
(författare)
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Oskolkov, NikolayUppsala universitet,Lund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Bioinformatik,Forskargrupper vid Lunds universitet,Molecular Cell Biology,Department of Biology,Faculty of Science,Bioinformatics,Lund University Research Groups,Science for Life Laboratory, SciLifeLab,Lund Univ, Dept Biol, S-22362 Lund, Sweden.;Nat Bioinformat Infrastruct Sweden NBIS(Swepub:lu)med-nao
(författare)
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Carlsson, PerLund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Akvatisk ekologi,Forskargrupper vid Lunds universitet,Division aquatic ecology,Department of Biology,Faculty of Science,Aquatic Ecology,Lund University Research Groups,Lund Univ, Dept Biol, S-22362 Lund, Sweden(Swepub:lu)limn-pca
(författare)
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Enhet akvatisk ekologiBiologiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Marine Ecology - Progress Series: Inter-Research Science Center708, s. 143-1610171-86301616-1599
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