My research groups
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Evolutionary Ecology The overriding aim of evolutionary ecology research is to enhance our knowledge and understanding of the dynamics of genetic, functional, ecological and evolutionary mechanisms…
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Linnaeus University Centre for Ecology and Evolution in Microbial model Systems (EEMiS) EEMiS is a centre for research excellence studying ecological and evolutionary interactions from land to sea.
My ongoing research projects
Publications
Article in journal (Refereed)
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Betzholtz, P., Forsman, A., Franzén, M. (2025). The impacts of climate and the extreme drought in 2018 on population growth in Swedish moth species. Insect Conservation and Diversity. 18 (3). 429-437.
Status: Published -
Betzholtz, P., Forsman, A., Franzén, M. (2023). Increased Abundance Coincides with Range Expansions and Phenology Shifts : A Long-Term Case Study of Two Noctuid Moths in Sweden. Diversity. 15 (12).
Status: Published -
Betzholtz, P., Forsman, A., Franzén, M. (2023). Associations of 16-Year Population Dynamics in Range-Expanding Moths with Temperature and Years since Establishment. Insects. 14 (1).
Status: Published -
Sunde, J., Franzén, M., Betzholtz, P., Francioli, Y., Pettersson, L.B., et al. (2023). Century-long butterfly range expansions in northern Europe depend on climate, land use and species traits. Communications Biology. 6 (1).
Status: Published -
Polic, D., Tamario, C., Franzén, M., Betzholtz, P., Yildirim, Y., et al. (2021). Movements and occurrence in two closely related fritillary species. Ecological Entomology. 46 (2). 428-439.
Status: Published -
Franzén, M., Betzholtz, P., Pettersson, L.B., Forsman, A. (2020). Urban moth communities suggest that life in the city favours thermophilic multi-dimensional generalists. Proceedings of the Royal Society of London. Biological Sciences. 287 (1928). 1-10.
Status: Published -
Forsman, A., Polic, D., Sunde, J., Betzholtz, P., Franzén, M. (2020). Variable colour patterns indicate multidimensional, intraspecific trait variation and ecological generalization in moths. Ecography. 43 (6). 823-833.
Status: Published -
Betzholtz, P., Forsman, A., Franzén, M. (2019). Inter-individual variation in colour patterns in noctuid moths characterizes long-distance dispersers and agricultural pests. Journal of applied entomology. 143 (9). 992-999.
Status: Published -
Franzén, M., Forsman, A., Betzholtz, P. (2019). Variable color patterns influence continental range size and species-area relationships on islands. Ecosphere. 10 (1). 1-11.
Status: Published -
Betzholtz, P., Franzén, M., Forsman, A. (2017). Colour pattern variation can inform about extinction risk in moths. Animal Conservation. 20 (1). 72-79.
Status: Published -
Forsman, A., Betzholtz, P., Franzén, M. (2016). Faster poleward range shifts in moths with more variable colour patterns. Scientific Reports. 6. 1-8.
Status: Published -
Forsman, A., Betzholtz, P., Franzén, M. (2015). Variable coloration is associated with dampened population fluctuations in noctuid moths. Proceedings of the Royal Society of London. Biological Sciences. 282 (1808). 1-9.
Status: Published -
Betzholtz, P., Franzén, M. (2013). Ecological characteristics associated with high mobility in night-active moths. Basic and Applied Ecology. 14 (3). 271-279.
Status: Published -
Betzholtz, P., Pettersson, L.B., Ryrholm, N., Franzén, M. (2013). With that diet, you will go far : trait-based analysis reveals a link between rapid range expansion and a nitrogen-favoured diet.. Proceedings of the Royal Society of London. Biological Sciences. 280 (1750).
Status: Published -
Franzén, M., Betzholtz, P. (2012). Species traits predict island occupancy in noctuid moths. Journal of Insect Conservation. 16 (2). 155-163.
Status: Published -
Franzén, M., Schweiger, O., Betzholtz, P. (2012). Species-area relationships are controlled by species traits. PLOS ONE. 7 (5). 1-10.
Status: Published -
Betzholtz, P., Franzén, M. (2011). Mobility is related to species traits in noctuid moths. Ecological Entomology. 36. 369-376.
Status: Published -
Betzholtz, P., Berger, T., Petersson, J., Stedt, J. (2010). What do population viability analyses tell about the future for Baltic Dunlin Calidris alpina schinzii and Montagu’s Harrier Circus pygargus on Öland?. Ornis Svecica. 20. 93-102.
Status: Published -
Betzholtz, P., Ehrig, A., Lindeborg, M., Dinnetz, P. (2007). Food plant density, patch isolation and vegetation height determine occurrence in a Swedish metapopulation of the marsh fritillary butterfly Euphydryas aurinia. Journal of Insect Conservation. 11. 343-350.
Status: Published -
Anders, B., Betzholtz, P., Fredrik, B., Franzén, M. (2007). 2007. The future for the cloded apollo (P. mnemosyne) in Blekinge. Entomologisk Tidskrift. 128. 81-88.
Status: Published -
Karlsson, T., Betzholtz, P., Malmgren, J. (2007). Estimating viability and sensitivity of the great crested newt Triturus cristatus at a regional scale.. Web Ecology. 7. 63-76.
Status: Published -
Betzholtz, P. (2003). Habitat utilization by ovipositing females and larvae in an endangered population of the moth Dysauxes ancilla (Lepidoptera: Ctenuchidae). Journal of Research of the Lepidoptera. 37. 47-54.
Status: Published -
Betzholtz, P. (2003). The discrepancy between between food plant preference and suitability in the moth Dysauxes ancilla. Web Ecology. 4. 7-14.
Status: Published -
Betzholtz, P. (2002). Population structure and movement patterns within an isolated and endangered population of the moth Dysauxes ancilla L. (Lepidoptera, Ctenuchidae): implication for conservation. Journal of Insect Conservation. 6. 57-66.
Status: Published -
Betzholtz, P. (2000). Genetic status and fluctuating asymmetry in an endangered population of the moth Dysauxes ancilla L. (Lepidoptera: Ctenuchidae). Journal of Insect Conservation. 4. 93-98.
Status: Published
Doctoral thesis, monograph (Other academic)
- Betzholtz, P. (2004). Ecology and conservation of the moth Dysauxes ancilla. Doctoral Thesis.
Report (Other academic)
- Betzholtz, P. (2005). Action plan for the conservation of handmaid (Dysauxes ancilla) (in Swedish). Naturvårdsverket.