Publications

Sierro, A. and Erhardt, A. (2019) ‘Light pollution hampers recolonization of revitalised European Nightjar habitats in the Valais (Swiss Alps)’, JOURNAL OF ORNITHOLOGY. SPRINGER HEIDELBERG, 160(3), pp. 749-761. doi: 10.1007/s10336-019-01659-6.   edoc
Cahenzli, F., Wenk, B. and Erhardt, A. (2015) ‘Female butterflies adapt and allocate their progeny to the host-plant quality of their own larval experience’, Ecology. Ecological Society of America, 96(7), pp. 1966-1973. doi: 10.1890/14-1275.1.   edoc
Beck, J., Böller, M., Erhardt, A. and Schwanghart, W. (2014) ‘Spatial bias in the GBIF database and its effect on modelling species’ geographical distributions’, Ecological informatics. Elsevier, Vol. 19, pp. 10-15.   edoc
Cahenzli, F. and Erhardt, A. (2013) ‘Transgenerational acclimatization in an herbivore-host plant relationship’, Proceedings of the Royal Society of Edinburgh. Section B, Biological sciences. Royal Society of Edinburgh, Vol. 280, H. 1756 , 20122856. doi: 10.1098/rspb.2012.2856.   edoc
Schulze, J., Erhardt, A. and Stoll, P. (2013) ‘Reduced clonal reproduction indicates low potential for establishment of hybrids between wild and cultivated strawberries (Fragaria vesca x F. x ananassa)’, Ecological research. Blackwell, Vol. 28 , S. 43–52.   edoc
Cahenzli, F. and Erhardt, A. (2013) ‘Nectar amino acids enhance reproduction in male butterflies’, Oecologia. Springer, Vol. 171, H. 1, pp. 197-205. doi: 10.1007/s00442-012-2395-8.   edoc
Cahenzli, F. and Erhardt, A. (2012) ‘Enhancing offspring quality or quantity? Different ways for using nectar amino acids in female butterflies’, Oecologia. Springer, Vol. 169, H. 4 , S. 1005–1014. doi: 10.1007/s00442-012-2254-7.   edoc
Cahenzli, F. and Erhardt, A. (2012) ‘Nectar sugars enhance fitness in male Coenonympha pamphilus butterflies by increasing longevity or realized reproduction’, Oikos. Blackwell, Vol. 121, H. 9 , S. 1417–1423. doi: 10.1111/j.1600-0706.2012.20190.x.   edoc
Schulze, J., Oeschger, L., Gross, A., Mueller, A., Stoll, P. and Erhardt, A. (2012) ‘Solitary bees – potential vectors for gene flow from cultivated to wild strawberries’, Flora. G. Fischer Verlag, Vol. 207, H. 10 , S. 762–767.   edoc
Cahenzli, F. and Erhardt, A. (2012) ‘Host plant defence in the larval stage affects feeding behaviour in adult butterflies’, Animal behaviour. Academic Press, Vol. 84, H. 4 , S. 995–1000.   edoc
Erhardt, A. and Bonetti, C. (2012) ‘Bestäubung und sexuelle Reproduktion von wilden Nelken im Nordwestschweizer Jura – ein gefährdeter Prozess’, Regio Basiliensis. Wepf, Vol. 53, H. 3, pp. 143-151.   edoc
Schulze, J., Rufener, R., Erhardt, A. and Stoll, P. (2012) ‘The relative importance of sexual and clonal reproduction for population growth in the perennial herb; Fragaria vesca’, Population ecology. Springer, Vol. 54, H. 3, pp. 369-380. doi: 10.1007/s10144-012-0321-x.   edoc
Schulze, J., Stoll, P., Widmer, A. and Erhardt, A. (2011) ‘Searching for gene flow from cultivated to wild strawberries in Central Europe’, Annals of botany. Oxford University Press, Vol. 107, H. 4, pp. 699-707.   edoc
Wirth, L. R., Waser, N. M., Graf, R., Gugerli, F., Landergott, U., Erhardt, A., Linder, H.-P. and Holderegger, R. (2011) ‘Effects of floral neighborhood on seed set and degree of outbreeding in a high-alpine cushion plant’, Oecologia. Springer, Vol. 167, H. 2 , S. 427–434.   edoc
Sieber, Y., Holderegger, R., Waser, N. M., Thomas, V. F. D., Braun, S., Erhardt, A., Reyer, H.-U. and Wirth, L. R. (2011) ‘Do alpine plants facilitate each other’s pollination? Experiments at a small spatial scale’, Acta oecologica. Ed. Elsevier, Vol. 37, H. 4 , S. 369–374.   edoc
Waser, N. M., Ollerton, J. and Erhardt, A. (2011) ‘Typology in pollination biology : lessons from an historical critique’, Journal of Pollination Ecology, Vol. 3, pp. 1-7.   edoc
Landolt, E., Bäumler, B., Erhardt, A., Hegg, O., Klötzli, F., Lämmler, W., Nobis, M., Rudmann-Maurer, K., Schweingruber, F., Theurillat, J.-P., Urmi, E., Vust, M. and Wohlgemuth, T. (2010) Flora indicativa = Ecological inicator values and biological attributes of the flora of Switzerland and the Alps : ökologische Zeigerwerte und biologische Kennzeichen zur Flora der Schweiz und der Alpen. Edited by E. Landolt, B. Bäumler, A. Erhardt, O. Hegg, F. Klötzli, W. Lämmler, M. Nobis, K. Rudmann-Maurer, F. H. Schweingruber, J.-P. Theurillat, E. Urmi, M. Vust, and T. Wohlgemuth. Bern: Haupt Verlag.   edoc
Haas, J. N. and Erhardt, A. (2010) ‘Obituary: Prof. Dr. Heinrich Zoller (1923-2009)’, Review of palaeobotany and palynology. Elsevier, Vol. 162, pp. 111-115.   edoc
Erhardt, A. (2010) ‘Professor Dr. Heinrich Zoller, 1923-2009’, Vierteljahresschrift der Naturforschenden Gesellschaft Zürich. Koprint, Jg. 155, H. 1/2, pp. 35-36.   edoc
Erhardt, A. (2010) ‘Nachruf: Professor Dr. Heinrich Zoller, 1923-2009’, Bauhinia, pp. 1-4.   edoc
Erhardt, A. and Mevi-Schütz, J. (2009) ‘Adult food resources in butterflies’, in Ecology of Butterflies in Europe. Cambridge UK: Cambridge University Press, pp. 9-16.   edoc
Goverde, M., Bazin, A., Kery, M., Shykoff, J. A. and Erhardt, A. (2008) ‘Positive effects of cyanogenic glycosides in food plants on larval development of the common blue butterfly’, Oecologia. Springer, Vol. 157, H. 3, pp. 409-418. doi: 10.1007/s00442-008-1096-9.   edoc
Bloch, D. and Erhardt, A. (2008) ‘Selection toward shorter flowers by butterflies whose probosces are shorter than floral tubes’, Ecology. Ecological Society of America, 89, Nr. 9, pp. 2453-2460.   edoc
Baur, B., Cremene, C., Groza, C., Schileyko, A. A., Baur, A. and Erhardt, A. (2007) ‘Intensified grazing affects endemic plant and gastropod diversity in alpine grasslands of the Southern Carpathian mountains (Romania)’, Biologia : journal of the Slovak Academy of Sciences. Slovak Academic Press, Vol. 62, Nr. 4, pp. 438-445. doi: 10.2478/s11756-007-0086-4.   edoc
Bloch, D., Werdenberg, N. and Erhardt, A. (2006) ‘Pollination crisis in the butterfly-pollinated wild carnation Dianthus carthusianorum?’, New phytologist. Blackwell Science, Vol. 169, pp. 699-706.   edoc
Baur, B., Cremene, C., Groza, G., Rakosy, L., Schileyko, A. A., Baur, A., Stoll, P. and Erhardt, A. (2006) ‘Effects of abandonment of subalpine hay meadows on plant and invertebrate diversity in Transylvania, Romania’, Biological conservation. Elsevier, vol. 132, Nr. 2, pp. 261-273. doi: 10.1016/j.biocon.2006.04.018.   edoc
Mevi-Schutz, J. and Erhardt, A. (2005) ‘Amino acids in nectar enhance butterfly fecundity : a long-awaited link’, The American naturalist. University of Chicago Press, Vol. 165, Nr. 4, pp. 411-419.   edoc
Cremene, C., Groza, G., Rakosy, L., Schileyko, A. A., Baur, A., Erhardt, A. and Baur, B. (2005) ‘Alterations of steppe-like grasslands in Eastern Europe : a threat to regional biodiversity hotspots’, Conservation biology. Blackwell Science, Vol. 19, no. 5, pp. 1606-1618. doi: 10.1111/j.1523-1739.2005.00084.x.   edoc
Erhardt, A., Rusterholz, H.-P. and Stöcklin, J. (2005) ‘Elevated carbon dioxide increases nectar production in Epilobium angustifolium L’, Oecologia. Springer, 146(2), pp. 311-317. doi: 10.1007/s00442-005-0182-5.   edoc | Open Access
Mevi-Schutz, J. and Erhardt, A. (2004) ‘Mating frequency influences nectar amino acid preference of Pieris napi’, Proceedings of the Royal Society. Series B, Biological sciences. The Royal Society, Vol. 271, pp. 153-158.   edoc
Goverde, M., Erhardt, A. and Stöcklin, J. (2004) ‘Genotype-specific response of a lycaenid herbivore to elevated carbon dioxide and phosphorus availability in calcareous grassland’, Oecologia. Springer, 139(3), pp. 383-391. doi: 10.1007/s00442-004-1516-4.   edoc | Open Access
Goverde, M. and Erhardt, A. (2003) ‘Effects of elevated CO2 on development and larval food-plant preference in the butterfly Coenonympha pamphilus (Lepidoptera, Satyridae)’, Global change biology. Blackwell Science, Vol. 9, pp. 74-83.   edoc
Mevi-Schutz, J., Goverde, M. and Erhardt, A. (2003) ‘Effects of fertilization and elevated CO2 on larval food and butterfly nectar amino acid preference in Coenonympha pamphilus L.’, Behavioral ecology and sociobiology. Springer, Vol. 54, H. 1, pp. 36-43. doi: 10.1007/s00265-003-0601-8.   edoc
Mevi-Schutz, J. and Erhardt, A. (2003) ‘Larval nutrition affects female nectar amino acid preference in the map butterfly (Araschnia levana)’, Ecology. Ecological Society of America, 84, Nr. 10, pp. 2788-2794.   edoc
Mevi-Schutz, J. and Erhardt, A. (2003) ‘Effects of nectar amino acids on fecundity of the wall brown butterfly (Lasiommata megera L.)’, Basic and applied ecology. Elsevier, Vol. 4, H. 5, pp. 413-421.   edoc
Goverde, M., Schweizer, K., Baur, B. and Erhardt, A. (2002) ‘Small-scale habitat fragmentation effects on pollinator behaviour : experimental evidence from the bumblebee ’Bombus veteranus’ on calcarous grasslands’, Biological conservation. Elsevier, vol. 104, Nr. 3, pp. 293-299.   edoc
Mevi-Schütz, J. and Erhardt, A. (2002) ‘Can Inachis io detect nectar amino acids at low concentrations?’, Physiological entomology. Blackwell, Vol. 27, pp. 256-260. doi: 10.1046/j.1365-3032.2002.00291.x.   edoc
Goverde, M., Arnone III, J. A. and Erhardt, A. (2002) ‘Species-specific reactions to elevated CO₂ and nutrient availability in four grass species’, Basic and applied ecology. Elsevier, Vol. 3, H. 3, pp. 221-227.   edoc
Goverde, M., Erhardt, A. and Niklaus, P. (2002) ‘In situ development of a satyrid butterfly on calcareous grassland exposed to elevated carbon dioxide’, Ecology. Ecological Society of America, 83, Nr. 5, pp. 1399-1411.   edoc
Bazin, A., Goverde, M., Erhardt, A. and Shykoff, J. A. (2002) ‘Influence of atmospheric CO₂ enrichment on induced defence and growth compensation after herbivore damage in Lotus corniculatus’, Ecological Entomology. Blackwell Science, 27, pp. 271-278. doi: 10.1046/j.1365-2311.2002.00409.x.   edoc
Zoller, H., Lenzin, H. and Erhardt, A. (2002) ‘Pollination and breeding system of Eritrichium nanum (Boraginaceae)’, Plant systematics and evolution. Springer, 233, pp. 1-14.   edoc
Baur, B., Zschokke, S., Coray, A., Schläpfer, M. and Erhardt, A. (2002) ‘Habitat characteristics of the endangered flightless beetle ’Dorcadion fuliginator’ (Coleoptera, Cerambycidae) : implications for conservation’, Biological Conservation. - Amsterdam, vol. 105, Nr. 2, pp. 133-142. doi: 10.1016/S0006-3207(01)00117-3.   edoc
Zschokke, S., Dolt, C., Rusterholz, H.-P., Oggier, P., Braschler, B., Thommen, G. H., Lüdin, E., Erhardt, A. and Baur, B. (2000) ‘Short-term responses of plants and invertebrates to experimental small-scale grassland fragmentation’, Oecologia. Springer, Vol. 125, H. 4, pp. 559-572.   edoc