Dr Guy Pe’er


Research interests


Key projects:
iDiv strategic project iCAP-BES: "Impacts of the Common Agricultural Policy on Biodiversity, Ecosystem Services and people“.

Understanding and addressing anthropogenic pressures on biodiversity, especially through habitat loss, fragmentation, land-use- and climatic changes. I am particularly interested in how animal movement and dispersal interact with species’ demography to determine population viability, range-shift dynamics, and community structures in fragmented landscapes.

Patterns and trends in biodiversity: long-term monitoring, targeted fieldwork on rare species, and biodiversity surveys help determining the status and trends in biodiversity. With particular interest in butterflies, I am one of the founders of the Israeli Butterfly Monitoring Scheme (BMS-IL) established 2009, and nowadays serving as a scientific supervisor and consultant to the programme.

Agriculture and agricultural policy and their effects on nature and humans: Agricultural production, expansion and intensification exert pressures on our society, economy and environment. To address these pressures I am engaged in interdisciplinary research onto how the EU’s Common Agricultural Policy (CAP) affects both nature and humans. I am particularly interested in how the CAP affects Socio-Ecological Systems in terms of the interactions between farm structure and economy, biodiversity and ecosystem services, and consequently also rural vitality and farmers’ wellbeing.

CAP Fitness Check: Recent publications

The full report will be published in Autumn 2017

Curriculum Vitae


March 2017- present
sDiv “Catalyst PostDoc” Position

German Centre for Integrative Biodiversity Research, Synthesis Centre sDiv, Leipzig, Germany

Since 4.2015
Member of the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Germany

Research associate (Group leader: Population Ecology and Landscape Structure), Dept. of Conservation Biology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany

Post Doctorate
, joint affiliation between Dept. of Conservation Biology at UFZ, Leipzig, and Dept. of Environmental Studies, University of the Aegean, Mytilini, Greece

Post Doctorate, Dept. of Ecological Modelling, UFZ, Leipzig,

Post Doctorate
, Dept. of Evolution, Ecology and Behavior, Faculty of Natural Sciences, The Hebrew University of Jerusalem, Israel

Visiting Researcher, Dept. of Ecological Modelling, UFZ, Leipzig

Direct studies for PhD (including M.Sc.) in Conservation Biology, Mitrani Dept. for Desert Ecology, Ben-Gurion University of the Negev, Israel. Thesis Title: Spatial and behavioral determinants of butterfly movement patterns in topographically complex landscapes.

B.Sc. in Life Sciences, The Hebrew University of Jerusalem, Israel



Nature and Environmental Protection 

Modelling dispersal and connectivity in fragmented landscapes

Ecological modelling

Publications before iDiv


iDiv publications


Menger, J., W. E. Magnusson, M. J. Anderson, M. Schlegel, G. Pe'er, and K. Henle. (in press). Environmental Characteristics Drive Variation in Amazonian Understorey Bird Assemblages. PloS one in press.

Zurita, G. A., G. Pe’er, and M. I. Bellocq. (in press). Bird responses to forest loss: the influence of habitat specialization and perception of the habitat grain in the Atlantic forest. Diversity and Distributions, in press.

Hudson, L. N., Newbold, T., Contu, S., Hill, S. L. L., Lysenko, I., De Palma, A., Phillips, H. R. P., Alhusseini, T. I., Bedford, F. E., ..., Pe'er, G.et al. (2017): The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project. Ecology and Evolution 7(1), 145-88 10.1002/ece3.2579

Schultz, C. B., Pe'er, B. G., Damiani, C., Brown, L., Crone, E. E.  (2017): Does movement behaviour predict population densities? A test with 25 butterfly species. Journal of Animal Ecology 86(2), 384-93  10.1111/1365-2656.12609

Dislich, C., Keyel, A. C., Salecker, J., Kisel, Y., Meyer, K. M., Auliya, M., Barnes, A. D., Corre, M. D., Darras, K., Faust, H., Hess, B., Klasen, S., Knohl, A., Kreft, H., Meijide, A., Nurdiansyah, F., Otten, F., Pe'er, G.et al.  (2016): A review of the ecosystem functions in oil palm plantations, using forests as a reference system. Biological Reviews (in press) 10.1111/brv.12295

Ibisch, P. L., Hoffmann, M. T., Kreft, S., Pe’er, G., Kati, V., Biber-Freudenberger, L., DellaSala, D. A., Vale, M. M., Hobson, P. R., Selva, N.  (2016): A global map of roadless areas and their conservation status. Science 354(6318), 1423-27 10.1126/science.aaf7166

Numa, C., van Swaay, C., Wynhoff, I., Wiemers, M., Barrios, V., Allen, D., Sayer, C., López Munguira, M., Balletto, E., Benyamini, D., Beshkov, S., Bonelli, S., Caruana, R., Dapporto, L., Franeta, F., Garcia-Pereira, K., Katbeh-Bader, A., Maes, D., Micevski, N., Miller, R., Monteiro, E., Moulai, R., Nieto, A., Pamperis, L., Pe’er, G.et al. (2016):  The status and distribution of Mediterranean butterflies. IUCN Red List of Threatened Species - Regional Assessment

Pe'er, G., Zinngrebe, Y., Hauck, J., Schindler, S., Dittrich, A., Zingg, S., Tscharntke, T., Oppermann, R., Sutcliffe, L. M. E., Sirami, C., et al.  (2016): Adding Some Green to the Greening: Improving the EU's Ecological Focus Areas for Biodiversity and Farmers. Conservation Letters (in press)  10.1111/conl.12333

Urban, M. C., Bocedi, G., Hendry, A. P., Mihoub, J.-B., Pe’er, G., Singer, A., Bridle, J. R., Crozier, L. G., De Meester, L., Godsoe, W., Gonzalez, A., Hellmann, J. J., Holt, R. D., Huth, A.et al.  (2016): Improving the forecast for biodiversity under climate change. Science353(6304)  10.1126/science.aad8466

Schmucki, R., Pe'er, G., Roy, D. B., Stefanescu, C., Van Swaay, C. A. M., Oliver, T. H., Kuussaari, M., Van Strien, A. J., Ries, L., Settele, J.et al. (2015): A regionally informed abundance index for supporting integrative analyses across butterfly monitoring schemes. Journal of Applied Ecology 53(2), 501-51 10.1111/1365-2664.12561

Singer, A., Johst, K., Banitz, T., Fowler, M. S., Groeneveld, J., Gutiérrez, A. G., Hartig, F., Krug, R. M., Liess, M., Matlack, G., Meyer, K. M., Pe’er, G., Radchuk, V.et al.  (2015): Community dynamics under environmental change: How can next generation mechanistic models improve projections of species distributions?. Ecological Modelling 326, 63-74 10.1016/j.ecolmodel.2015.11.007

Van Swaay, C., Regan, E., Ling, M., Bozhinovska, E., Fernandez, M., Marini-Filho, O. J., Huertas, B., Phon, C.-K., Korösi, A., Meerman, J.,Pe’er, G.et al.  (2015):  Guidelines for Standardised Global Butterfly Monitoring. GEO BON Technical Series 1, Group on Earth Observations Biodiversity Observation Network, Leipzig, Germany

iDiv publications


Trouillier, M., Meyer, K. M., Santini, L., Pe'er, G.

(2023): A comparison of population viability measures. Ecology and Evolution

Candel, J., Pe’er, G., Finger, R.

(2023): Science calls for ambitious European pesticide policies. Nature Food

Pe'er, G., Finn, J. A., Díaz, M., Birkenstock, M., Lakner, S., Röder, N., Kazakova, Y., Šumrada, T., Bezák, P., Concepción, E. D., Dänhardt, J., Morales, M. B., Rac, I., Špulerová, J., Schindler, S., Stavrinides, M., Targetti, S., Viaggi, D., Vogiatzakis, I. N.Guyomard, H.

(2022): How can the European Common Agricultural Policy help halt biodiversity loss? Recommendations by over 300 experts. Conservation Letters

A. Perino, H. M. Pereira, M. Felipe-Lucia, H. Kim, H. S. Kühl, M. R. Marselle, J. N. Meya, C. Meyer, L. M. Navarro, R. van Klink, G. Albert, C. D. Barratt, H. Bruelheide, Y. Cao, A. Chamoin, M. Darbi, M. Dornelas, N. Eisenhauer, F. Essl, N. Farwig, J. Förster, J. Freyhof, J. Geschke, F. Gottschall, C. Guerra, P. Haase, T. Hickler, U. Jacob, T. Kastner, L. Korell, I. Kühn, G. U. C. Lehmann, B. Lenzner, A. Marques, E. Motivans Švara, L. C. Quintero, A. Pacheco, A. Popp, J. Rouet-Leduc, F. Schnabel, J. Siebert, I. R. Staude, S. Trogisch, V. Švara, J.-C. Svenning, G. Pe'er, K. Raab, D. Rakosy, M. Vandewalle, A. S. Werner, C. Wirth, H. Xu, D. Yu, Y. Zinngrebe and A. Bonn

(2021): Biodiversity post-2020: Closing the gap between global targets and national-level implementation. Conservation Letters

Rouet-Leduc, J., Pe'er, G., Moreira, F., Bonn, A., Helmer, W., Shahsavan Zadeh, S. A. A., Zizka, A. and van der Plas, F.

(2021): Effects of large herbivores on fire regimes and wildfire mitigation. Journal of Applied Ecology

Candel, J. J. L., Lakner, S., Pe'er, G.

(2021): Europe's reformed agricultural policy disappoints. NATURE

Richter, A., Comay, O., Svenningsen, C. S., Larsen, J. C., Hecker, S., Tøttrup, A. P., Pe'er, G., Dunn, R. R., Bonn, A. and Marselle, M.

(2021): Motivation and support services in citizen science insect monitoring: A cross-country study. Biological Conservation

O. Comay, O. Ben Yehuda, R. Schwartz-Tzachor, D. Benyamini, I. Pe'er, I. Ktalav, G. Pe'er

(2021): Environmental controls on butterfly occurrence and species richness in Israel: The importance of temperature over rainfall. Ecology and Evolution

R. van Klink, D. E. Bowler, O. Comay, M. M. Driessen, S. K. M. Ernest, A. Gentile, F. Gilbert, K. B. Gongalsky, J. Owen, G. Pe'er, I. Pe'er, V. H. Resh, I. Rochlin, S. Schuch, A. B. Swengel, S. R. Swengel, T. J. Valone, R. Vermeulen, T. Wepprich, J. L. Wiedmann, J. M. Chase

(2021): InsectChange: a global database of temporal changes in insect and arachnid assemblages. Ecology

Udy, K., M. Fritsch, K. M. Meyer, I. Grass, S. Hanß, F. Hartig, T. Kneib, H. Kreft, C. B. Kukunda, G. Pe’er, H. Reininghaus, B. Tietjen, T. Tscharntke, C.-S. van Waveren, K. Wiegand

(2021): Environmental heterogeneity predicts global species richness patterns better than area. Global Ecology and Biogeography

Comay, O., Ben Yehuda, O., Benyamini, D., Schwartz-Tzachor, R., Pe'er, I., Melochna, T., Pe’er, G.

(2020): Analysis of monitoring data where butterflies fly year-round. Ecological Applications

Kühl, H. S., D. E. Bowler, L. Bösch, H. Bruelheide, J. Dauber, D. Eichenberg, N. Eisenhauer, N. Fernández, C. A. Guerra, K. Henle, I. Herbinger, N. J. B. Isaac, F. Jansen, B. König-Ries, I. Kühn, E. B. Nilsen, G. Pe'er,A. Richter, R. Schulte, J. Settele, N. M. van Dam,M. Voigt, W. J. Wägele, C. Wirth,A. Bonn

(2020): Effective Biodiversity Monitoring Needs a Culture of Integration. One Earth

Otero, I., Farrell, K. N., Pueyo, S., Kallis, G., Kehoe, L., Haberl, H., Plutzar, C., Hobson, P., García-Márquez, J., Rodríguez-Labajos, B., Martin, J.-L., Erb, K.-H., Schindler, S., Nielsen, J., Skorin, T., Settele, J., (...), Pe'er, G.

(2020): Biodiversity policy beyond economic growth. Conservation Letters

Pe'er, G., Bonn, A., Bruelheide, H., Dieker, P., Eisenhauer, N., Feindt, P., Hagedorn, G., Hansjürgens, B., Herzon, I., Lomba, Â., Marquard, E., Moreira, F., Nitsch, H., Oppermann, R., Perino, A., Röder, N., Schleyer, C., Schindler, S., Wolf, C., Lakner, S.

(2020): Action needed for the EU Common Agricultural Policy to address sustainability challenges. People and Nature

Pe’er, G., Lakner, S.


(2020): The EU’s Common Agricultural Policy Could Be Spent Much More Efficiently to Address Challenges for Farmers, Climate, and Biodiversity. One Earth

Prieto-Ramirez, A. M., Röhler, L., Cord, A. F., Pe’er, G., Rödder, D., Henle, K.

(2020): Differential effects of habitat loss on occupancy patterns of the eastern green lizard Lacerta viridis at the core and periphery of its distribution range. PLOS ONE

Hauenstein, S., J. Fattebert, M. U. Gruebler, B. Naef-Daenzer, G. Pe'er, F. Hartig

(2019): Calibrating an individual-based movement model to predict functional connectivity for little owls. Ecological Applications

Lakner, S., Holst, C., Dittrich, A., Hoyer, C., Pe’er, G.

(2019): Impacts of the EU’s Common Agricultural Policy on Biodiversity and Ecosystem Services. In: M. Schröter, A. Bonn, S. Klotz, R. Seppelt and C. Baessler (Eds.) Atlas of Ecosystem Services: Drivers, Risks, and Societal Responses Springer International Publishing

Lakner, S., Holst, C., Pe'er, G.

(2019): Ecological impacts of Greening versus Agri-Environmental and Climate Measures (AECM): An ecological-economic evaluation for Lower Saxony, Germany. Research in Agricultural & Applied Economics

Pe'er, G., Zinngrebe, Y., Moreira, F., Sirami, C., Schindler, S., Müller, R., Bontzorlos, V., Clough, D., Bezák, P., Bonn, A., Hansjürgens, B., Lomba, A., Möckel, S., Passoni, G., Schleyer, C., Schmidt, J., Lakner, S.

(2019): A greener path for the EU Common Agricultural Policy. Science

Pellissier, V., Schmucki, R., Pe'er, G., ..., Settele, J. et al.

(2019): Effects of Natura 2000 on nontarget bird and butterfly species based on citizen science data. Conservation Biology

Perino, A., H. M. Pereira, L. M. Navarro, N. Fernandez, J. M. Bullock, S. Ceausu, A. Cortes-Avizanda, R. van Klink, T. Kuemmerle, A. Lomba, G. Pe'er et al.

(2019): Rewilding complex ecosystems. Science

Salecker, J., Dislich, C., Wiegand, K., Meyer, K. M., Pe´er, G.

(2019): EFForTS-LGraf: A landscape generator for creating smallholder-driven land-use mosaics. PLOS ONE

Prieto-Ramirez, A. M., Pe'er, G., Rodder, D., Henle, K.

(2018): Realized niche and microhabitat selection of the eastern green lizard (Lacerta viridis) at the core and periphery of its distribution range. Ecology and Evolution
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Helmholtz-Centre for Environmental Research – UFZ

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