Sabrina Mazzoni

Image of Sabrina Mazzoni
Mobile phone +47 97 73 73 11
Room 225, Botanical Museum

PhD project

The broader context of my doctoral project (and the GEco group in general) is to gain theoretical and practical insight in the field of (Species) Distribution Modelling, with a particular focus on model selection (or parameterisation) and model evaluation. In this regard, my work focuses on a systematic (theoretical simple but inherently complex) yet flexible (accessible and practical) exploration of parameter options and settings of both novel and established MaxEnt Modelling methodological practices. I have extended this comparison to include a wide range of dataset properties, modelling purpose, whilst still aiming at finding a flexible balance between simplicity and complexity, to maintain it accessible and practical. In doing so, what is emerging is a set of traceable approaches and flexible tools that integrate conceptual and practical considerations from the fields of ecology, modelling and informatics.


  • Vollering, Julien; Halvorsen, Rune & Mazzoni, Sabrina (2019). The MIAmaxent R package: Variable transformation and model selection for species distribution models. Ecology and Evolution.  ISSN 2045-7758.  s 1- 14 . doi: 10.1002/ece3.5654
  • Støa, Bente; Halvorsen, Rune; Mazzoni, Sabrina & Gusarov, Vladimir (2018). Sampling bias in presence-only data used for species distribution modelling: theory and methods for detecting sample bias and its effects on models.. Sommerfeltia.  ISSN 0800-6865.  38, s 1- 53 . doi: 10.2478/som-2018-0001
  • Halvorsen, Rune; Mazzoni, Sabrina; Dirksen, John Wirkola; Næsset, Erik; Gobakken, Terje & Ohlson, Mikael (2016). How important are choice of model selection method and spatial autocorrelation of presence data for distribution modelling by MaxEnt?. Ecological Modelling.  ISSN 0304-3800.  328, s 108- 118 . doi: 10.1016/j.ecolmodel.2016.02.021
  • Halvorsen, Rune; Mazzoni, Sabrina; Bryn, Anders & Bakkestuen, Vegar (2015). Opportunities for improved distribution modelling practice via a strict maximum likelihood interpretation of MaxEnt. Ecography.  ISSN 0906-7590.  38(2), s 172- 183 . doi: 10.1111/ecog.00565
  • Mazzoni, Sabrina; Halvorsen, Rune & Bakkestuen, Vegar (2015). MIAT: Modular R-wrappers for flexible implementation of MaxEnt distribution modelling. Ecological Informatics.  ISSN 1574-9541.  30, s 215- 221 . doi: 10.1016/j.ecoinf.2015.07.001 Full text in Research Archive.
  • Bendiksby, Mika; Mazzoni, Sabrina; Jørgensen, Marte Holten; Halvorsen, Rune & Holien, Håkon (2014). Combining genetic analyses of archived specimens with distribution modelling to explain the anomalous distribution of the rare lichen Staurolemma omphalarioides: Long-distance dispersal or vicariance?. Journal of Biogeography.  ISSN 0305-0270.  41(11), s 2020- 2031 . doi: 10.1111/jbi.12347
  • Halvorsen, Rune; Mazzoni, Sabrina; Bratli, Harald; Engan, Gunnar; Fjeldstad, Helge; Gaarder, Geir; Larsen, Bjørn Harald & Nordbakken, Jørn-Frode (2011). Utprøving av NiN versjon 1.0 som naturtypekartleggingssystem, I: Rune Halvorsen (red.),  Faglig grunnlag for naturtypeovervåking i Norge – grunnlagsundersøkelser.  Universitetet i Oslo, Naturhistorisk museum.  ISBN 978-82-7970 022 7.  kapittel 1.  s 11 - 98
  • Mazzoni, Sabrina; Halvorsen, Rune; Bakkestuen, Vegar & Bratli, Harald (2011). Romlig prediksjonsmodellering av kulturmarkseng i Oppdal kommune (Sør-Trøndelag), I: Rune Halvorsen (red.),  Faglig grunnlag for naturtypeovervåking i Norge – grunnlagsundersøkelser.  Universitetet i Oslo, Naturhistorisk museum.  ISBN 978-82-7970 022 7.  kapittel IV.  s 127 - 151
  • Bolger, Douglas; Alberts, Allison; Sauvajot, Ray; Potenza, Paula; McCalvin, Catherine; Tran, D; Mazzoni, Sabrina & Soulé, Michael E. (1997). Response of Rodents to Habitat Fragmentation In Coastal Southern California. Ecological Applications.  ISSN 1051-0761.  7(2), s 552- 563 Show summary

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  • Vollering, Julien; Mazzoni, Sabrina & Halvorsen, Rune (2016). MIAmaxent: Maxent Distribution Model Selection. Show summary
  • Bendiksby, Mika; Mazzoni, Sabrina; Jørgensen, Marte Holten; Halvorsen, Rune & Holien, Håkon (2014). Staurolemma omphalarioides: long-distance dispersal or vicariance?.
  • Dramstad, Wenche; Mazzoni, Sabrina & Fjellstad, Wendy Jane (2012). Jordvern og arealplanlegging. Fakta fra Skog og landskap.  (03) Full text in Research Archive. Show summary
  • Norderhaug, Ann; Halvorsen, Rune; Johansen, Line; Mazzoni, Sabrina; Bratli, Harald; Svalheim, Ellen; Jordal, John Bjarne & Pedersen, Oddvar (2012). Kulturmarkseng i Naturindeks – utvikling av kunnskapsgrunnlaget for overvåking og forvaltning. Bioforsk Rapport. 129. Full text in Research Archive. Show summary
  • Mazzoni, Sabrina; Dramstad, Wenche & Fjellstad, Wendy Jane (2010). PLANNING CHANGES – OR CHANGING THE PLANS?, In Anders Bryn; Wenche Dramstad & Wendy Jane Fjellstad (ed.),  Mapping and Monitoring of Nordic Vegetation and Landscapes.  Norsk institutt for skog og landskap.  Artikkel.  s 81 - 84
  • Mazzoni, Sabrina; Dramstad, Wenche & Fjellstad, Wendy Jane (2009). Planning changes – or changing the plans.Mapping and monitoring of Nordic vegetation and landscapes. Conference proceedings.
  • Cousins, Jim; Heron, David & Mazzoni, Sabrina (2003). Modelling the spread of post-earthquake fire. Show summary
  • Di Vecchia, Andrea; Genesio, Lorenzo & Mazzoni, Sabrina (2002). Keita Integrated Project: An Appropriate Model for Sustainable Development – The impact of 18 years of land reclamation on Desertification, Climate Change and Biological Diversity.
  • Thomas, Geoff; Cousins, Jim; Lloyd, D.; Heron, David & Mazzoni, Sabrina (2002). Post-Earthquake Fire Spread Between Buildings Estimating and Costing Extent in Wellington. Show summary

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Published May 31, 2011 9:17 AM - Last modified Sep. 2, 2015 1:35 PM