Dr. Stephen Wickham

2022

Wickham SA, Wenta P, Sinner A, Weiss R (2022) Microzooplankton grazing and community composition in a high-productivity marine ecosystem. J Plankton Res 44: 414-426

Körner C, Berninger U-G, Daim A, Eberl R, Fernández Mendoza F, Füreder L, Grube M, Hainzer E, Kaiser T, Meyer E, Newesely C, Niedrist G, Niedrist GH, Petermann JS, Seeber J, Tappeiner U, Wickham SA (2022) Long-term monitoring of high-elevation terrestrial and aquatic ecosystems in the Alps–a five-year synthesis. Journal on Protected Mountain Areas Research and Management 14: 48-69

2021

Bartels A, Berninger U-G, Hohenberger F, Wickham S, Petermann JS (2021) Littoral macroinvertebrate communities of alpine lakes along an elevational gradient (Hohe Tauern National Park, Austria). PLoS ONE 16: e0255619

2020

Körner C, Tappeiner U, Newesely C, Wittmann H, Eberl T, Kaiser R, Meyer E, Grube M, Fernández Mendoza F, Füreder L, Niedrist GH, Daim A, Lieb G, Kellerer-Pirklbauer A, Wickham SA, Petermann JS, Berninger U-G (2020) Langzeitmonitoring von Ökosystemprozessen Synthese der Startphase 2016-2018

Di Carvalho JA, Wickham SA (2020) Does spatiotemporal nutrient variation allow more species to coexist? Oecologia 194: 695-707

2019

Wickham SA, Wimmer R (2019) Does Mixotrophy in ciliates compensate for poor-quality prey? Experiments with heterotrophic–mixotrophic species pairs. J Plankton Res 41: 583-593

Wickham SA, Petermann JS, Berninger U-G (2019) Langzeitmonitoring von Ökosystemprozessen im Nationalpark Hohe Tauern. Modul 08: Zooplanktongemeinschaften und abiotische Parameter hochalpiner Seen. Verlag der Österreichischen Akademie der Wissenschaften

Wickham SA, Petermann JS, Berninger U-G (2019) Langzeitmonitoring von Ökosystemprozessen im Nationalpark Hohe Tauern. Modul 08: Zooplanktongemeinschaften und abiotische Parameter hochalpiner Seen.  Methoden-Handbuch. Verlag der Österreichischen Akademie der Wissenschaften

Limberger R, Pitt A, Hahn MW, Wickham SA (2019) Spatial insurance in multi‐trophic metacommunities. Ecol Lett 22: 1828-1837

di Carvalho JA, Wickham SA (2019) Simulating eutrophication in a metacommunity landscape: an aquatic model ecosystem. Oecologia 189: 461-474

2016

Lischke B, Weithoff G, Wickham SA, Attermeyer K, Grossart H-P, Scharnweber K, Hilt S, Gaedke U (2016) Large biomass of small feeders: ciliates may dominate herbivory in eutrophic lakes. J Plankton Res 38: 2-15

2015

Wickham SA, Claessens M, Post AF (2015) Ciliates, microbes and nutrients: interactions in the seasonally mixed Gulf of Aqaba. J Plankton Res 37: 258-271

Dunthorn M, Lipps JH, Dolan JR, Saab MA-A, Aescht E, Bachy C, de Cao MSB, Berger H, Bourland WA, Choi JK, Clamp J, Doherty M, Gao F, Gentekaki E, Gong J, Hu X, Huang J, Kamiyama T, Johnson MD, Kammerlander B, Kim SY, Kim Y-O, la Terza A, Laval-Peuto M, Lipscomb D, Lobban CS, Long H, Luporini P, Lynn DH, Macek M, Mansergh RI, Martín-Cereceda M, McManus GG, Montagnes DJS, Ong’ondo GO, Patterson DJ, Pérez-Uz B, Quintela-Alonso P, Safi LSL, Santoferrara LF, Sonntag B, Song W, Stoeck T, Stoecker DK, Strüder-Kypke MC, Trautmann I, Utz LRP, Vallesi A, Vd’ačný P, Warren A, Weisse T, Wickham SA, Yi Z, Zhang W, Zhan Z, Zufall R, Agatha S (2015) Ciliates — Protists with complex morphologies and ambiguous early fossil record. Mar Micropaleontol 119: 1-6

2014

Lei Y-L, Stumm K, Wickham SA, Berninger U-G (2014) Distributions and Biomass of Benthic Ciliates, Foraminifera and Amoeboid Protists in Marine, Brackish, and Freshwater Sediments. J Eukaryot Microbiol 61: 493-508

2013

Hingsamer P, Striebel M, Stockenreiter M, Ptacnikova R, Ptacnik R, Wickham SA (2013) Interaction of productivity and disturbance in a marine ciliate community: a mesocosm study. Aquat Microb Ecol 70: 141-155

2012

Limberger R, Wickham SA (2012) Transitory versus persistent effects of connectivity in environmentally homogeneous metacommunities. PLoS ONE 7: e44555

Limberger R, Wickham SA (2012) Disturbance and diversity at two spatial scales. Oecologia 168: 785-795

2011

Wickham SA, Steinmair U, Kamennaya N (2011) Ciliate distributions and forcing factors in the Amundsen and Bellingshausen Seas (Antarctic). Aquat Microb Ecol 62: 215-230

Limberger R, Wickham SA (2011) Predator dispersal determines the effect of connectivity on prey diversity. PLoS One 6: e29071

Limberger R, Wickham S (2011) Competition–colonization trade-offs in a ciliate model community. Oecologia 167: 723-732

2010

Lei Y, Stumm K, Volkenborn N, Wickham SA, Berninger U-G (2010) Impact of Arenicola marina (Polychaeta) on the microbial assemblages and meiobenthos in a marine intertidal flat. Mar Biol 157: 1271-1282

Claessens M, Wickham SA, Post AF, Reuter M (2010) A paradox of the ciliates? High ciliate diversity in a resource-poor environment. Mar Biol 157: 483-494

Burgmer T, Reiss J, Wickham SA, Hillebrand H (2010) Effects of snail grazers and light on the benthic microbial food web in periphyton communities. Aquat Microb Ecol 61: 163-178

2009 – 2005

Lei Y, Xu K, Choi JK, Hong HP, Wickham SA (2009) Community structure and seasonal dynamics of planktonic ciliates along a salinity gradient. Eur J Protistol 45: 305-310

Wickham SA, Gugenberger E (2008) Evaluating inducible morphological defences in the common freshwater ciliate, Coleps hirtus. J Plankton Res 30: 1315-1321

Rossberg M, Wickham SA (2008) Ciliate vertical distribution and diel vertical migration in a eutrophic lake. Fundamental and Applied Limnology / Archiv für Hydrobiologie 171: 1-14

Claessens M, Wickham SA, Post AF, Reuter M (2008) Ciliate community in the oligotrophic Gulf of Aqaba, Red Sea. Aquat Microb Ecol 53: 181-190

Wickham SA, Berninger UG (2007) Krill larvae, copepods and the microbial food web: interactions during the Antarctic fall. Aquat Microb Ecol 46: 1-13

Berninger U-G, Wickham SA (2005) Response of the microbial food web to manipulation of nutrients and grazers in the oligotrophic Gulf of Aqaba and northern Red Sea. Mar Biol 147: 1017-1032

2004 – 2000

Wickham SA, Nagel S, Hillebrand H (2004) Control of epibenthic ciliate communities by grazers and nutrients. Aquat Microb Ecol 35: 153-162

Gaedke U, Wickham SA (2004) Ciliate dynamics in response to changing biotic and abiotic conditions in a large, deep lake (Lake Constance). Aquat Microb Ecol 34: 247-261

Garstecki T, Wickham SA (2003) The response of benthic rhizopods to experimental sediment disturbance does not support the intermediate disturbance hypothesis. Oikos 103: 528-531

Sommer U, Berninger UG, Böttger-Schnack R, Cornils A, Hagen W, Hansen T, Al-Najjar T, Post AF, Schnack-Schiel SB, Stibor H, Stübing D, Wickham S (2002) Grazing during early spring in the Gulf of Aqaba and the Northern Red Sea. Mar Ecol Prog Ser 239: 251-261

Scherwass A, Wickham SA, Arndt H (2002) Determination of the abundance of ciliates in highly turbid running waters – an improved method tested for the River Rhine. Arch Hydrobiol 156: 135-143

Hillebrand H, Kahlert M, Karlsson A-L, Berninger U-G, Nagel S, Wickham SA (2002) Control of microbenthic communities by grazing and resource supply. Ecol 83: 2205-2219

Garstecki T, Wickham SA, Arndt H (2002) Effects of Experimental Sediment Resuspension on a Coastal Planktonic Microbial Food Web. Estuar Cstl Shelf Sci 55: 751-762

Garstecki T, Wickham SA (2001) Effect of resuspension and mixing on population dynamics and trophic interactions in a model benthic microbial food web. Aquat Microb Ecol 25: 281-292

Adrian R, Wickham SA, Butler NM (2001) Trophic interactions between zooplankton and the microbial community in contrasting food webs: the epilimnion and deep chlorophyll maximum of a mesotrophic lake. Aquat Microb Ecol 24: 83-97

Wickham SA, Gieseke A, Berninger U-G (2000) Benthic ciliate identification and enumeration: an improved methodology and its application. Aquat Microb Ecol 22: 79-91

Garstecki T, Verhoeven R, Wickham SA, Arndt H (2000) Benthic-pelagic coupling: a comparison of the community structure of benthic and planktonic heterotrophic protists in shallow inlets of the southern Baltic. Freshwat Biol 45: 147-167

1999 – 1995

Wickham SA, Carstens M (1998) Effects of ultraviolet-B radiation on two arctic microbial food webs. Aquat Microb Ecol 16: 163-171

Wickham SA (1998) The direct and indirect impact of Daphnia and Cyclops on a freshwater microbial food web. J Plank Res 20: 739-755

Jürgens K, Wickham SA, Rothhaupt K-O, Santer B (1996) Feeding rates of macro- and microzooplankton on heterotrophic flagellates. Limnol Oceanogr 41: 1833-1839

Wickham SA (1995) Trophic relations between cyclopoid copepods and ciliated protists: complex interactions link the microbial and classic food webs. Limnol Oceanogr 40: 1173-1181

Wickham SA (1995) Cyclops predation on ciliates: Species-specific differences and functional responses. J Plankton Res 17: 1633-1646

1994 – 1990

Wickham SA, Gilbert JJ, Berninger U-G (1993) Effects of rotifers and ciliates on the growth and survival of Daphnia. J Plankton Res 15: 317-334

Wickham SA, Gilbert JJ (1993) The comparative importance of competition and predation by Daphnia on ciliated protists. Arch Hydrobiol 126: 289-313

Sanders RW, Wickham SA (1993) Planktonic protists and metazoa: predation, food quality and population control. Mar Microb Food Webs 7: 197-223

Jack JD, Wickham SA, Toalson S, Gilbert JJ (1993) The effect of clays on a freshwater plankton community: An enclosure experiment. Arch Hydrobiol 127: 257-270

Berninger U-G, Wickham SA, Finlay BJ (1993) Trophic coupling within the microbial food web: a study with fine temporal resolution in a eutrophic freshwater ecosystem. Freshwat Biol 30: 419-432

Wickham SA, Gilbert JJ (1991) Relative vulnerabilities of natural rotifer and ciliate communities to cladocerans: laboratory and field experiments. Freshwat Biol 26: 77-86

Wickham SA, Lynn DH (1990) Relations between growth rate, cell size, and DNA content in colpodean ciliates (Ciliophora: Colpodea). Eur J Protistol 25: 345-352

Richardson WB, Wickham SA, Threlkeld ST (1990) Foodweb response to the experimental manipulation of a benthivore (Cypinus carpio), zooplanktivore (Menidia beryllina) and benthic insects. Arch Hydrobiol 119: 143-165