Dr. Regula Billeter

Education and Continuing education

Expertise and research interests

Biodiversity, Neophytes, climate change and species, agricultural areas

Educational background

PhD in Environmental Sciences, 2001, University of Zurich
Master in Environmental Sciences, 1997/98, ETH Zurich

Projects

• Trévol - Aufwertung und Monitoring von Pferdeweiden / Team member / Project ongoing
• Ausbreitung des Adlerfarns am Zielhang Calanda / Team member / Project ongoing
• Fokus Biodiversität 2.0 / Team member / Project ongoing
• Lehrbuch Vegetationsanalyse / Team member / Project ongoing
• Ausbreitung des Adlerfarns am Zielhang Calanda (2022) / Team member / Project completed
• Fokus Biodiversität / Team member / Project completed
• Bekämpfen der Grünerle zur Förderung von Alpen-Akelei, Birkhuhn und anderen Prioritären Arten im Jagdbanngebiet „Graue Hörner“ (SG) / Project co-leader / Project completed
• Nutzungsaufgabe der Schafalpung im Jagdbanngebiet "Graue Hörner" (SG) / Project co-leader / Project completed

Publications

• Reutimann, Pascal; Billeter, Regula; Dengler, Jürgen,

  2023.

  Effects of grazing versus mowing on the vegetation of wet grasslands in the northern Pre‐Alps, Switzerland.

  Applied Vegetation Science.

  26(1), pp. e12706.

  Available from: https://doi.org/10.1111/avsc.12706

• Riesen, Matthias; Widmer, Stefan; Dengler, Jürgen; Billeter, Regula,

  2022.

  Einfluss maschinell geöffneter Lichtungen auf die Artenvielfalt in Grün-Erlen-Beständen : eine Untersuchung zu Gefäßpflanzen, Tagfaltern und Heuschrecken.

  Naturschutz und Landschaftsplanung.

  54(8), pp. 24-31.

  Available from: https://doi.org/10.1399/NuL.2022.08.02

• Seiler, Hallie; Küry, Daniel; Billeter, Regula; Dengler, Jürgen,

  2021.

  Regional typology of spring vegetation in Parc Ela (Grisons, Switzerland).

  Vegetation Classification and Survey.

  2, pp. 257-274.

  Available from: https://doi.org/10.3897/VCS/2021/69101

• Staubli, Eline; Dengler, Jürgen; Billeter, Regula; Wohlgemuth, Thomas,

  2021.

  Changes in biodiversity and species composition of temperate beech forests in Switzerland over 26 years.

  Tuexenia.

  41, pp. 87-108.

  Available from: https://doi.org/10.21256/zhaw-23427

• Kummli, Julia; Widmer, Stefan; Wilhelm, Markus; Dengler, Jürgen; Billeter, Regula,

  2021.

  Vegetation changes in urban grasslands over 25 years in the city of Zurich, Switzerland.

  Tuexenia.

  41, pp. 423-440.

  Available from: https://doi.org/10.14471/2021.41.018

• Büchler, Marc-Olivier; Billeter, Regula; Dengler, Jürgen,

  2020.

  Optimal site conditions for dry grasslands of high conservation value in the canton of Zurich, Switzerland.

  Tuexenia.

  40, pp. 527-546.

  Available from: https://doi.org/10.14471/2020.40.021

• Widmer, Stefan; Riesen, Matthias; Krüsi, Bertil; Dengler, Jürgen; Billeter, Regula,

  2020.

  Wenn Gämsen Schafe ersetzen : Fallstudie zu den Auswirkungen auf die Diversität von alpinen Rasen.

  Tuexenia.

  40, pp. 225-246.

  Available from: https://doi.org/10.14471/2020.40.013

• Dengler, Jürgen; Widmer, Stefan; Staubli, Eline; Babbi, Manuel; Gehler, Jamyra; Hepenstrick, Daniel; Bergamini, Ariel; Billeter, Regula; Boch, Steffen; Rohrer, Sven; Dembicz, Iwona,

  2019.

  Dry grasslands of the central valleys of the Alps from a European perspective : the example of Ausserberg (Valais, Switzerland).

  Hacquetia.

  18(2), pp. 155-177.

  Available from: https://doi.org/10.2478/hacq-2019-0008

• Halbritter, Aud H.; Fior, Simone; Keller, Irene; Billeter, Regula; Edwards, Peter J.; Holderegger, Rolf; Karrenberg, Sophie; Pluess, Andrea R.; Widmer, Alex; Alexander, Jake M.,

  2018.

  Trait differentiation and adaptation of plants along elevation gradients.

  Journal of Evolutionary Biology.

  31(6), pp. 784-800.

  Available from: https://doi.org/10.1111/jeb.13262

• Vermaat, Jan E.; Hellmann, Fritz A.; van Teeffelen, Astrid J. A.; van Minnen, Jelle; Alkemade, Rob; Billeter, Regula; Beierkuhnlein, Carl; Boitani, Luigi; Cabeza, Mar; Feld, Christian K.; Huntley, Brian; Paterson, James; WallisDeVries, Michiel F.,

  2017.

  Differentiating the effects of climate and land use change on European biodiversity : a scenario analysis.

  Ambio.

  46(3), pp. 277-290.

  Available from: https://doi.org/10.1007/s13280-016-0840-3

• Halbritter, A. H.; Billeter, Regula; Edwards, P. J.; Alexander, Jake M.,

  2015.

  Local adaptation at range edgesv: comparing elevation and latitudinal gradients.

  Journal of Evolutionary Biology.

  28(10), pp. 1849-1860.

  Available from: https://doi.org/10.1111/jeb.12701

• Aavik, Tsipe; Bosshard, Daniel; Edwards, Peter J.; Holderegger, Rolf; Billeter, Regula,

  2014.

  Fitness in naturally occurring and restored populations of a grassland plant Lychnis flos-cuculi in a Swiss agricultural landscape.

  Restoration Ecology.

  22(1), pp. 98-106.

  Available from: https://doi.org/10.1111/rec.12020

• Halbritter, Aud H.; Alexander, Jake M.; Edwards, Peter J.; Billeter, Regula,

  2013.

  How comparable are species distributions along elevational and latitudinal climate gradients?.

  Global Ecology and Biogeography.

  22(11), pp. 1228-1237.

  Available from: https://doi.org/10.1111/geb.12066

• Aavik, Tsipe; Edwards, Peter J.; Holderegger, Rolf; Graf, René; Billeter, Regula,

  2012.

  Genetic consequences of using seed mixtures in restoration : a case study of a wetland plant Lychnis flos-cuculi.

  Biological Conservation.

  145(1), pp. 195-204.

  Available from: https://doi.org/10.1016/j.biocon.2011.11.004

• Sheppard, Christine S.; Alexander, Jake M.; Billeter, Regula,

  2012.

  The invasion of plant communities following extreme weather events under ambient and elevated temperature.

  Plant Ecology.

  213(8), pp. 1289-1301.

  Available from: https://doi.org/10.1007/s11258-012-0086-5

• Schlaepfer, Daniel R.; Edwards, Peter J.; Billeter, Regula,

  2010.

  Why only tetraploid Solidago gigantea (Asteraceae) became invasive : a common garden comparison of ploidy levels.

  Oecologia.

  163(3), pp. 661-673.

  Available from: https://doi.org/10.1007/s00442-010-1595-3

• Billeter, Regula; Liira, J.; Bailey, D.; Bugter, R.; Arens, P.; Augenstein, I.; Aviron, S.; Baudry, J.; Bukacek, R.; Burel, F.; Cerny, M.; De Blust, G.; De Cock, R.; Diekötter, T.; Dietz, H.; Dirksen, J.; Dormann, C.; Durka, W.; Frenzel, M.; Hamersky, R.; Hendrickx, F.; Herzog, F.; Klotz, S.; Koolstra, B.; Lausch, A.; Le Coeur, D.; Maelfait, J. P.; Opdam, P.; Roubalova, M.; Schermann, A.; Schermann, N.; Schmidt, T.; Schweiger, O.; Smulders, M.J.M.; Speelmans, M.; Simova, P.; Verboom, J.; Van Wingerden, W.K.R.E.; Zobel, M.; Edwards, P.J.,

  2007.

  Indicators for biodiversity in agricultural landscapes : a pan-European study.

  Journal of Applied Ecology.

  45(1), pp. 141-150.

  Available from: https://doi.org/10.1111/j.1365-2664.2007.01393.x

• Billeter, Regula; Widmer, Stefan; Riesen, Matthias; Krüsi, Bertil; Dengler, Jürgen; Thiel, Dominik,

  2023.

  Biodiversitätsforschung im Jagdbanngebiete Graue Hörner (Kt. SG).

  N+L Inside.

  2023(3), pp. 29-33.

  Available from: https://kbnl.ch/2023/08/31/biodiversitaetsforschung-im-jagdbanngebiet-graue-hoerner-kt-sg/

• Fuhrer, Björn; Billeter, Regula; Krüsi, Bertil O.; Sartori, Karin,

  2018.

  Was hilft gegen das Berufkraut?.

  Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich.

  163(1), pp. 13-15.

  Available from: http://www.ngzh.ch/media/vjs/163_1_13-15.pdf

• Geser, Lukas; Billeter, Regula; Krüsi, Bertil O.,

  2016.

  Invasive Neophyten in der Gemeinde Dürnten.

  Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich.

  161(4), pp. 8-10.

  Available from: http://www.ngzh.ch/publikationen/zusatz/161/4/invasive-neophyten-in-duernten

• Aavik, Tsipe; Bosshard, Daniel; Edwards, Peter; Holderegger, Rolf; Billeter, Regula,

  2014.

  Genetische Vielfalt in Wildpflanzen-Samenmischungen.

  Agrarforschung Schweiz.

  5(1), pp. 20-27.

  Available from: https://www.agrarforschungschweiz.ch/archiv_11de.php?id_artikel=1942

Other publications

Halbritter A., Billeter, R., Alexander, J. & Edwards, P.J. (2013) Are species climatic limits conserved along elevational and latitudinal gradients? Global Ecology and Biogeography, 22, 1228-1237.

Aavik, T., Holderegger, R., Edwards, P. & Billeter, R. (2013) Patterns of contemporary gene flow suggest low functional connectivity of grasslands in a fragmented agricultural landscape. Journal of Applied Ecology, 50, 395-403.

Le Feon, V., Schermann-Legionnet, A., Delettre, Y., Aviron, S., Billeter, R., Bugter R., Hendrickx, F. & Burel, F. (2010) Intensification of agriculture, landscape composition and wild bee communities: A large scale study in four European countries. Agriculture Ecosystems & Environment 137, 143-150.

Diekotter, T., Baveco, H., Arens, P., Rothenbuhler, C., Billeter, R., Csencsics, D., De Filippi, R., Hendrickx, F., Speelmans, M., Opdam, P. & Smulders, M.J.M. (2010) Patterns of habitat occupancy, genetic variation and predicted movement of a flightless bush cricket, Pholidoptera griseoaptera, in an agricultural mosaic landscape. Landscape Ecology 25, 449-461.

Schmidt, T., Arens, P., Smulders, M.J.M., Billeter, R., Liira, J., Augenstein, I. & Durka, W. (2009) Effects of landscape structure on genetic diversity of Geum urbanum L. populations in agricultural landscapes. Flora 204, 549-559.

Diekotter, T., Billeter, R. & Crist, T. O. (2008) Effects of landscape connectivity on the spatial distribution of insect diversity in agricultural mosaic landscapes. Basic and Applied Ecology, 9, 298-307.

Dormann, C. F., Schweiger, O., Arens, P., Augenstein, I., Aviron, S., Bailey, D., Baudry, J., Billeter, R., Bugter, R., Bukacek, R., Burel, F., Cerny, M., De Cock, R., De Blust, G., DeFilippi, R., Diekotter, T., Dirksen, J., Durka, W., Edwards, P. J., Frenzel, M., Hamersky, R., Hendrickx, F., Herzog, F., Klotz, S., Koolstra, B., Lausch, A., Le Coeur, D., Liira, J., Maelfait, J. P., Opdam, P., Roubalova, M., Schermann-Legionnet, A., Schermann, N., Schmidt, T., Smulders, M. J. M., Speelmans, M., Simova, P., Verboom, J., van Wingerden, W. & Zobel, M. (2008) Prediction uncertainty of environmental change effects on temperate European biodiversity. Ecology Letters, 11, 235-244.

Liira, J., Schmidt, T., Aavik, T., Arens, P., Augenstein, I., Bailey, D., Billeter, R., Bukacek, R., Burel, F., De Blust, G., De Cock, R., Dirksen, J., Edwards, P. J., Hamersky, R., Herzog, F., Klotz, S., Kuhn, I., Le Coeur, D., Miklova, P., Roubalova, M., Schweiger, O., Smulders, M. J. M., Van Wingerden, W., Bugter, R. & Zobel, M. (2008) Plant functional group composition and large-scale species richness in European agricultural landscapes. Journal of Vegetation Science, 19, 3-14.

Schlaepfer, D. R., Edwards, P. J., Semple, J. C. & Billeter, R. (2008a) Cytogeography of Solidago gigantea (Asteraceae) and its invasive ploidy level. Journal of Biogeography, 35, 2119-2127.

Schlaepfer, D. R., Edwards, P. J., Widmer, A. & Billeter, R. (2008b) Phylogeography of native ploidy levels and invasive tetraploids of Solidago gigantea. Molecular Ecology, 17, 5245-5256.

Bailey, D., Herzog, F., Augenstein, I., Aviron, St., Billeter, R. & Baudry, J. (2007) Thematic resolution matters: Indicators of landscape pattern for European agro-ecosystems. Ecological Indicators, 7, 692-709.

Bailey, D., Billeter, R., Aviron, S., Schweiger, O. & Herzog, F. (2007) The influence of thematic resolution on metric selection for biodiversity monitoring in agricultural landscapes. Landscape Ecology, 22, 461-73.

Billeter, R., Peintinger, M. & Diemer, M. (2007) Restoration of abandoned fen meadows by mowing – evidence from a multi-site experiment. Botanica Helvetica 117, 1-13.

Dormann, C. F., Schweiger, O., Augenstein, I., Bailey, D., Billeter, R., de Blust, G., DeFilippi, R., Frenzel, M., Hendrickx, F., Herzog, F., Klotz, S., Liira, J., Maelfait, J. P., Schmidt, T., Speelmans, M., van Wingerden, W. & Zobel, M. (2007) Effects of landscape structure and land-use intensity on similarity of plant and animal communities. Global Ecology and Biogeography, 16, 774-787.

Hendrickx, F., Maelfait, J.P., van Wingerden, W., Schweiger, O., Speelmans, M., Aviron, St., Augenstein, I., Billeter, R., Bailey, D., Bukacek, R., Burel, F., Diekötter, T., Dirksen, J., Herzog, F., Liira, J., Roubalova, M., Vandomme, V. & Bugter, R. (2007) How landscape structure, land-use intensity and habitat diversity affect components of total arthropod diversity in agricultural landscapes. Journal of Applied Ecology, 44, 340-351.

Schweiger, O., Musche, M., Bailey, D., Billeter, R., Diekotter, T., Hendrickx, F., Herzog, F., Liira, J., Maelfait, J.P., Speelmans, M. & Dziock, F. (2007) Functional richness of local hoverfly communities (Diptera, Syrphidae) in response to land use across temperate Europe. Oikos, 116, 461-72.

Herzog, F., Steiner, B., Bailey, D., Baudry, J., Billeter, R., Bukacek, R., De Blust, G., De Cock, R., Dirksen, J., Dormann, C.F., De Filippi, R., Frossard, E., Liira, J., Schmidt, T., Stockli, R., Thenail, C., van Wingerden, W. & Bugter, R. (2006) Assessing the intensity of temperate European agriculture at the landscape scale. European Journal of Agronomy, 24, 165-81.

Becker, T., Dietz, H., Billeter, R., Buschmann, H. & Edwards, P.J. (2005) Altitudinal distribution of alien plant species in the Swiss Alps. Perspectives in Plant Ecology Evolution and Systematics, 7, 173-83.

Diekotter, T., Csencsics, D., Rothenbuhler, C., Billeter, R. & Edwards, P.J. (2005) Movement and dispersal patterns in the bush cricket Pholidoptera griseoaptera: the role of developmental stage and sex. Ecological Entomology, 30, 419-27.

Schweiger, O., Maelfait, J.P., Van Wingerden, W., Hendrickx, F., Billeter, R., Speelmans, M., Augenstein, I., Aukema, B., Aviron, S., Bailey, D., Bukacek, R., Burel, F., Diekotter, T., Dirksen, J., Frenzel, M., Herzog, F., Liira, J., Roubalova, M. & Bugter, R. (2005) Quantifying the impact of environmental factors on arthropod communities in agricultural landscapes across organizational levels and spatial scales. Journal of Applied Ecology, 42, 1129-39.

Diemer, M., Billeter, R., Hooftman, D.A.P., Oetiker, K. & Lienert, J. (2005) Die langfristigen Auswirkungen von Nutzungsänderungen auf häufige Pflanzenarten montaner Kalkflachmoore in der Schweiz. Natur und Landschaft, 2, 63-69.

Hooftman, D., Billeter, R., Schmid, B. & Diemer, M. (2004) Genetic effects of habitat fragmentation on common species of Swiss fen meadows. Conservation Biology, 18, 1043-1051.
Billeter, R., Sedivy, I. & Diekötter, T. (2003) Distribution and dispersal patterns of the ringlet butterfly (Aphantopus hyperantus) in agricultural landscapes. Bulletin of the Geobotanical Institute, ETH, 69, 45 – 55.

Billeter, R., Hooftman, D., Diemer, M. (2003) Differential and reversible responses of common fen meadow species to abandonment. Applied Vegetation Science, 6, 3-12.

Billeter, R., Schneller, J., Diemer, M. (2002) Secondary succession in fen meadows and its genetic consequences on two common fen species: Carex davalliana and Succisa pratensis. Bulletin of the Geobotanical Institute ETH, 68, 45-54.

Diemer, M., Oetiker, K. & Billeter, R. (2001) Abandonment alters community composition and canopy structure of Swiss calcareous fens. Applied Vegetation Science, 4, 237-246.

Billeter, R., Diemer, M. & Schneller, J. (2000) Effects of abandonment on Tofieldia calyculata (Liliaceae), a common, subdominant wetland species. Bulletin of the Geobotanical Institute ETH, 66, 37-46.

Billeter, R., Zuest B. & Schoenborn, A. (1998) Switzerland. In: Vymazal J.; Brix H.; Cooper P. F., Green M.B. & Haberl R. (eds.), Constructed wetlands for wastewater treatment in Europe. pp. 261-287. Backhuys Publishers, Leiden.

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