Saskya van Nouhuys
(Partially updated April 08)

saskya@cornell.edu
http://www.eeb.cornell.edu/sdv2/saskya%20www/index.htmlsdv2/
http://www.helsinki.fi/science/metapop

Until April 08:
Department of Ecology & Evolutionary Biology
Corson Hall
Cornell University,
Ithaca, NY 14853
607-255-2791 (w), 607-277-5675 (h)
FAX: 607-255-8088, cell 607-327-0014

Between April and September 08:
Nåtö Biological Station
Järsövägen 375
Mariehamn 22160
Åland, Finland
Mobile +358 (0)40 508 2549

Education

Ph.D. Entomology:  Cornell University 1997 Faculty advisor: Sara Via; Committee : Michael Hoffmann, Richard Root, Thomas Seeley

B.A. Biology: University of California at Santa Cruz 1987

Positions held

5/03-present: Senior Researcher in the Metapopulation Research Group, Dept. of Ecology and Systematics, University of Helsinki, Finland
10/02- present: Visiting Assistant Professor, Department of Ecology and Evolutionary Biology, Cornell University
9/04 -12/04
: Lecturer, Department of Entomology, Cornell University
4/01-5/03
: Researcher in the Metapopulation Research Group, Dept. of Ecology and Systematics, University of Helsinki, Finland
4/97- 4/01: Post-doctoral Fellow with Ilkka Hanski, Dept. of Ecology and Systematics, University of Helsinki, Finland
9/00-9/02: Visiting Fellow, Department of Ecology and Evolutionary Biology, Cornell University
9/98-9/00: Visiting Fellow Department of Entomology, Cornell University
9/90-1/97: Ph.D. support in Entomology at Cornell University: 3 year NSF pre-doctoral fellowship, 3 year teaching assistantships, 1 semester departmental fellowship
88-90: Field assistant for California Agricultural Extension

Teaching

Introductory Entomology (Lectures & laboratory): Cornell University (Fall 04, Fall 08)
Spatial Population Ecology: Cornell University (Spring 01, Spring 05, Spring 07), University of
Argentina (Spring 06)
Metacommunity Ecology: Uppsala University, Sweden (Co-instructor Spring 08)
Evolutionary Biology: University of Helsinki, Finland (Co-instructor, Spring 98)                 
Guest lectures at Cornell University
: Dispersal, Ecological Genetics, Insect Ecology, Metacommunity ecology, Parasitoid Ecology
Graduate teaching assistant (TA): General Evolution, General Ecology, Applied Entomology, Cultural Entomology, Introductory Biology 

Service

Journal peer reviews (10-15 per year): Acta Oecologica, Annals of the Entomological Society of America, Basic and Applied Ecology, Behavioral Ecology, Behavioral Ecology and Sociobiology, Biological Control, Biology Letters, Ecography, Ecological Applications, Ecological Entomology, Ecology, Ecology Letters, Entomologia Experimentalis et Applicata, Entomologica Fennica, Ethology, Evolution, Evolutionary Ecology, J. of Animal Ecology, J. of Applied Ecology, J. of Insect Behavior, J. of Insect Science, J. of Natural History, Molecular Ecology, Oecologia, Oikos, Proceedings of the Royal Society B., Science
Grant proposal reviews: USDA-NRI proposals to “Biologically Based Pest Management” program (8), and to the “Managed Ecosystems” program (2), Netherlands Organisation for Scientific Research (1), Heinz foundation (1)
Ph.D evaluations:
Outside evaluator for J. Elzinga, 2005, University Utrecht NL; Hugo von Zeipel, 2007, Stockholm University
Symposiums organized:
"The ecology of parasitoids of butterflies" for the 5th Conference on Butterfly Biology, Italy, 2007.

Graduate students supervised- present

Markku Ojanen (05- 08) Helsinki, Finland- Multitrophic level interaction between a plant, pathogen, herbivore, and parasitoid (MSc, co- advise with A.-L. Laine)

Graduate students supervised- past

Anne Reichgelt (07) National University of Ireland (research in Finland)- Density dependent hyperparasitism due to aggregation of adult female hyperparasitoids (MSc)

Kaisa Torri (05-07) Helsinki, Finland- Natural history of the marsh fritillary Melitaea athalia in Åland, Finland (MSc, co-advise with I. Hanski)

Riikka Kaartinen (03-06) Oulu, Finland – Within patch searching behavior of an extremely mobile parasitoid wasp, Hyposoter horticola (MSc, co-advise with S. Rytkönen)

Maaria Kankare (99-04) Helsinki, Finland- Phylogeny and host associations of Cotesia parasitoids attacking checkerspot butterflies (Ph.D., informally co-advised with I. Hanski)

Lucie Salvaudon (02) Paris, France (research in Finland) – The mechanisms by which the parasitoid wasp Hyposoter horticola lays eggs in only1/3 of the hosts per host cluster (MSc)

Johanna Ehrnsten (01-03) Helsinki, Finland – Movement and oviposition behavior of an extremely mobile parasitoid wasp, Hyposoter horticola (MSc)

Christian Anton (00 - 01) Jena, Germany (research in Finland) – Behavioral and developmental responses of a specialist parasitoid wasp to host larvae feeding on two host food plant species (MSc)

Eeva Punju (00 - 02) Helsinki, Finland – Interspecific competition between immature parasitoid wasps within host larvae (MSc)

Current collaborators (outside of I. Hanski and others in the Metapopulation Research Group (MRG))

Dr. Arjen Biere, Dept. of Plant population Biology, Centre for Terrestrial Ecology, The Netherlands – –Multitrophic effects of plant chemical defense

Dr. Marcela Castelo,
Dpto. de Ecologia, Genetica y Evolucion Ciudad Universitaria de Buenos Aires, Argentina - Olfactory responce of the parasitoid Hyposoter horticola to host associated odors.

Dr. Juan Corley,
Laboratory of Insect Ecology, National Scientific Research Council of Argentina – Dispersal rate and range of a wood wasp and parasitoid in pine plantations in Patagonia

Dr. Jeff Harvey, Dept. of Multitrophic level interactions, Centre for Terrestrial Ecology, The Netherlands –Multitrophic effects of plant chemical defense

Dr. Mark Shaw, National Museum of Scotland, UK –Taxonomy of parasitoids and phylogenetic relationships among parasitoids in the genus Cotesia that use checkerspot butterflies

Professor Michael C. Singer, Dept. of Integrative Biology, University of Texas, USA – Checkerspot butterfly ecology & Evolution

Dr. Constantí Stefanescu, Butterfly Monitoring Scheme, Catalonya, Spain – Butterfly & parasitoid community Ecology

Memberships

Ecological Society of America; Entomological Society of America; International Society of Hymenopterists; International Organization for Biological Control; Xerces Society

Workshops attended and research visits

3/06 Research/teaching trip to Bariloche, Argentina
11/05 Research trip to Masuala Peninsula, Madagascar
5/04 Research trip to the Urmuqi area of Xinjiang province, China
4/02 Research trip to the Montseny Mountain National Park in Catalonia, Spain
8/01 Research trip to the Orenburg region of the Ural steppe, Russia
4/01 Visitor in the Department of Multitrophic Interactions, Centre for Terrestrial Ecology, Netherlands Institute of  Ecology
4/00 Taxonomy and biology of parasitic hymenoptera workshop, Imperial College at Silwood Park, UK

Publications (click on an underlined title to download a pdf file)

Refereed Journals

Reudler Talsma, J., Biere, A., Harvey, J. A., van Nouhuys, S. 2008 PDF
Oviposition cues for a specialist butterfly: plant chemistry and size.
Journal of chemical ecology, in press

Reudler Talsma, J., Torri, K. van Nouhuys, S. 2008 PDF
Host plant use by the Heath fritillary butterfly, Melitaea athalia: plant habitat, species and chemistry.
Arthropod-Plant Interactions, 2: 63-75

van Nouhuys, S. Kaartinen, R. 2008 PDF
A parasitoid wasp uses landmarks while monitoring potential resources.
Proceedings of the Royal Society B, 275: 377-385

van Nouhuys, S. and Laine, A-L. 2008 PDF
Population dynamics and sex ratio of a parasitoid altered by fungal infected diet of host butterfly.
Proceedings of the Royal Society B, 275: 787-795

Elzinga, J. A., van Nouhuys, S., van Leeuwen, D. J., Biere, A. 2007
Distribution and colonization ability of three parasitoids and their herbivorous host in a fragmented landscape.
Basic and Applied Ecology, 8: 75-88

Saastamoinen, M., van Nouhuys, S., Nieminen, M., O’Hara, B., Suomi, J. 2007 PDF
Development and survival of a specialist herbivore, Melitaea cinxia, on host plants producing high and low concentrations of iridoid glycosides.
Annales Zoologici Fennici, 44: 70-80.

Tscharntke, T., R. Bommarco, Y. Clough, T. Crist, D. Kleijn, T. Rand, J. Tylianakis, S. van Nouhuys, S.Vidal 2007 PDF (authors alphabetical after Tscharntke)
Conservation biological control and enemy diversity on a landscape scal.
Biological Control, 43: 294-309

Harvey, J.A., van Nouhuys, S., Biere, A. 2005
Effects of quantitative variation in allelochemicals in Plantago lanceolata on development of a generalist and a specialist herbivore and their endoparasitoids
Journal of Chemical Ecology, 31: 287-302

Kankare, M., Stefanescu, C., van Nouhuys, S., Shaw, M. R. 2005
Host specialization by Cotesia wasps (Hymenoptera: Braconidae) parasitising species-rich Melitaeini (Lepidoptera: Nymphalidae) communities in north-eastern Spain.
The Biological Journal of the Linnean Society, 86: 45-65

Kankare, M., van Nouhuys, S., Gaggiotti, O., Hanski, I. 2005
Metapopulation genetic structure of two coexisting parasitoids of the Glanville fritillary butterfly.
Oecologia, 143: 77-84

Kankare, M., van Nouhuys, S. Hanski, I. 2005 PDF
Genetic divergence among host-specific cryptic species in Cotesia melitaearum agg., a parasitoid of checkerspot butterflies.
Annals of the Entomological Society of America, 98: 382-394

van Nouhuys, S. 2005 PDF
Effects of habitat fragmentation at different trophic levels in insect communities.
Annales Zoologici Fennici, 42: 433–447

van Nouhuys, S, Ehrnsten, J. 2004
Parasitoid behavior that leads to uniform parasitism of a host available only a few hours per year
Behavioral Ecology, 15: 661-665
See a short summary "Waspish Behavior" Nature (2004) 430:31

van Nouhuys, S., G.C. Lei 2004
Parasitoid and host metapopulation dynamics: the influence of temperature mediated phenological asynchrony
Journal of Animal Ecology, 73: 526-535

Nieminen, M., J. Suomi, S. van Nouhuys, P. Sauri, M. Riekkola 2003
Effect of iridoid glycoside content on oviposition host plant and parasitism in a specialist herbivore.
Journal of Chemical Ecology, 29: 823-844

van Nouhuys, S., M.C. Singer, M. Nieminen 2003
Spatial and temporal patterns of caterpillar performance and the suitability of two host plant species
Ecological Entomology, 28: 193-202

van Nouhuys, S., & I. Hanski. 2002
Colonization rates and distances of a host butterfly and two specific parasitoids in a fragmented landscape
Journal of Animal Ecology, 71: 639-650

Hoffmann, M.P., P.R. Ode, D.L. Walker, J. Gardner, S. van Nouhuys & A. M. Shelton. 2001
Performance of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) reared on factitious hosts including Ostrinia nubilalis (Lepidoptera: Pyralidae)
Biological Control, 21: 1-10

van Nouhuys, S. & W.T. Tay. 2001
Causes and consequences of small population size for a specialist parasitoid wasp
Oecologia, 128: 126-133

van Nouhuys, S. & I. Hanski 2000
Apparent competition between parasitoids mediated by a shared hyperparasitoid

Ecology Letters, 3: 82-84

van Nouhuys, S. & I. Hanski 1999
Host diet affects extinctions and colonizations in a parasitoid metapopulation

Journal of Animal Ecology, 68: 1248-1258

van Nouhuys, S. & S. Via 1999
Natural selection and genetic differentiation of behavior between parasitoids from wild and cultivated habitats

Heredity, 83: 127-137

Fox L. R., D. K. Letourneau, J. Eisenbach & S. van Nouhuys 1990
Parasitism rate and sex ratios of a parasitoid wasp: Effects of herbivore and plant quality
Oecologia, 83: 414-419

Welch C. W., C. Pickel, D. Walsh & S. van Nouhuys 1989
Cyclamen mite control in Strawberries.
California Agriculture, 43(3): 14-18

Chapters in edited volumes

Shaw, M. R, Stefanescu, C., van Nouhuys, S.
Parasitoids of European Butterflies in Ecology of Butterflies of Europe (eds. J. Settele, T. G. Shreeve, M. Konvicka & H. Van Dyck) Cambridge University Press. In press

van Nouhuys, S., Hanski, I. 2005
Metacommunities of butterflies and their parasitoids. In Metacommunities: Spatial Dynamics and Ecological Communities (M. Leibold, R. Holt and M. Holyoak eds.). University of Chicago Press. pp. 99-121

van Nouhuys, S., Hanski, I. 2004
Natural enemies of checkerspot butterflies. In On the Wings of Checkerspots: A Model System for Population Biology (P. R. Ehrlich & I. Hanski, eds.) Oxford University Press, pp. 161-180

Kuussaari, M., van Nouhuys, S., Hellmann, J., Singer, M. C. 2004
Checkerspot butterfly larval biology. In On the Wings of Checkerspots: A Model System for Population Biology (P. R. Ehrlich & I. Hanski, eds.) Oxford University Press, pp. 138-160

van Nouhuys, S. & Hanski, I. 2002
Multitrophic interactions in space: metacommunity dynamics in fragmented landscapes. In Multitrophic level interactions (T. Tscharntke & B. A. Hawkins eds.) Cambridge University Press. pp. 124-

Manuscripts in review

Castelo, M. K., van Nouhuy, S. &. Corley, J. C. Foraging cues for a parasitoid that uses hosts as larvae but searches fro them as eggs, in review

Current and pending grants & project funding

Title: Metapopulation Research Group
PIs: Ilkka Hanski (head), Mikko Frilander, Atte Moilanen, Otso Ovaskainen, Tomas Roslin, Saskya van Nouhuys
Funding agency: Academy of Finland, Centre of Excellence Program
Location: Helsinki, Finland
Duration: 2006-2011 (6 years)

Title: Spatial population biology of parasitoid wasps
PI: Saskya van Nouhuys
Funding agency: Academic academy of Finland
Requested amount and duration: 480,000 € over five years

 

Title: Sex determination and mating structure in gregarious parasitoids

PIs: Paul Ode, George Heimpel, Louise Vet, Saskya van Nouhuys

Funding agency: Submitted to NSF Ja.n 2008

Requsted amount: 339,091 USD

Past grants, fellowships and awards

Title: Funding for the symposium Ecology of parasitoids of butterflies in the 5th International Conference on the Biology of Butterflies 2-7 July 2007 in Italy
PI: Saskya van Nouhuys

Funding Agency: ESF program for Behavioral ecology of insect parasitoids (BEPAR)

Title: Linking foraging behavior and dispersal to explain spatial population dynamics in host-parasitoid interactions
PIs:Saskya van Nouhuys, Juan Corley
Funding agency: Academy of Finland- research exchange program between Finland and Argentina
Location: Helsinki, Finland/ Bariloche Argentina
Duration: 2004-2006

1997 - 01 Ministry of Education of Finland post-doctoral fellowship;1996 Griswold Fund award from the Dept. of Entomology at Cornell; 1996 - 97 Cornell University Palmer Fellowship;1995 Rawlins Endowment award from the Dept. of Entomology at Cornell;1994 National Sigma Xi grant-in-aid;1992 Local Sigma Xi grant-in -aid; 1991-94 NSF three-year pre-doctoral fellowship;1987 Chancellors award for undergraduate research, UC Santa Cruz; 1987 Honors for senior thesis with Dr. L.R. Fox, UC Santa Cruz

Invited departmental seminars (15)

Dec. 07 Department of Botany, Stockholm University

April 05 Department of Integrative Biology, University of Texas, Austin “Host specialization by Cotesia parastoids of checkerspot butterflies."

Jan. 05 Centre for Terrestrial Ecology, Heteren, The Netherlands “Host specialization by Cotesia parastoids of checkerspot butterflies."

Feb. 04 Ecology seminar series at Pennsylvania State University “Dispersal and habitat structure in communities of butterflies, their host plants and parasitoids.”

Nov. 03 Department of Ecology and Evolutionary Biology seminar series at Cornell University, Ithaca, New York. "Spatial population dynamics in insect communities: butterflies and their host plants and parasitoids."

March 03 Biology Department at Leiden University, Holland "A host and two parasitoids that each experience the same habitat differently."

Feb. 02 Department of Entomology seminar series at Cornell University, Ithaca, New York. "Uniform parasitism by a wasp with an extremely short opportunity for parasitism: behavior within and among host populations."

April 01 Centre for Terrestrial Ecology, Heteren, The Netherlands "Large-scale population dynamics and multitrophic level interactions of a parasitoid wasp."

Sept. 00 Department of Entomology, Cornell University, Geneva, New York. "Population dynamics of a herbivore and its parasitoids in a fragmented landscape."

Jan. 99 Division of Organismal Biology and Ecology seminar series, University of California at Santa Cruz. "Host diet affects extinctions and colonizations in a parasitoid metapopulation."

Oct. 99 Department of Biology, Colorado State University, Ft. Collins, Colorado. "Population dynamics of a parasitoid wasp: from individual to metapopulation."

Feb. 98 Centre for Ecological Sciences, Indian Institute of Science, Bangalore, India. "Parasitoid wasp foraging behavior: variation caused by genetics and by the environment."

Feb. 98 The Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India. "The influence of habitat on the metapopulation dynamics of a parasitoid wasp and its host, the Glanville Fritillary butterfly."

Dec. 97 Department of Ecology and Systematics seminar series, University of Helsinki, Finland. "Natural selection on foraging behavior and genetic differentiation between populations of a parasitoid wasp."

Nov.96 Department of Entomology seminar series at Cornell University, Ithaca, New York. "Parasitoid wasps from wild and cultivated host plant habitats: natural selection on foraging behavior and genetic differentiation between populations."

Oral presentations at conferences/workshops/symposia (single presenting author unless indicated) (Twentyfive, eight of them invited)

June 08 Invited speaker Symposium on- Genetic and Genomic Approaches for Parasitoid Behavioural Ecology

Oct. 07 Invited speaker Symposium on- Recent Advances in Butterfly Biology - from Genes to Communities. "Specialization by Cotesia parasitoids and their checkerspot butterfly hosts""

Aug. 07 Invited speaker Annual meeting of the Ecological Society of America. "Parasitoids of co-occurring checkerspot butterflies: Cryptic species groups and community structure."

July 07 13th Symposium on Insect-Plant Relationships, Sweden.  “Effects of iridoid glycosides on generalist and specialist herbivores and parasitoids.” A. Biere, (presenter) J. H. Reudler-Talsma, S. van Nouhuys, J. A. Harvey.

July 07 5th conference on The Biology of Butterflies, Italy. “The diversity of ways that butterflies and their parasitoids coexist- a case study using Melitaea cinxia.” (I was a symposium organizer)

Nov. 06 Annual meeting of the Entomological Society of America. "Host finding and monitoring by aparasitoid wasp."

Sept. 06 Conferenece on Behavioural Ecology of Insect Parasitoids, France. "Keeping track of host locations by learning landmarks."

Sept. 06 Conferenece on Behavioural Ecology of Insect Parasitoids, France. "Direct and indirect defence; compatible or conflicting plant stratagies?." J. H. Reudler-Talsma (presenter), A. Biere, J. A. Harvey, S. van Nouhuys

Sept. 05 Congreso Argentino de Entomologia, San Miguel de Tucumán, Argentina. "Respuesta olfatoria del parasitoide Hyposoter horticola (Ichneumonidae: Campoplaginae) hacia claves asociadas con su hospedador, Melitaea cinxia (Lepidoptera: Nymphalidae)" M. K. Castelo (presenter), S. van Nouhuys and J. Corley

Nov. 04 Invited speaker Workshop on Spatial ecology of insect-plant interactions, Helsinki, Finland. "Habitat fragmentation at different trophic levels- a literature review"

Aug. 04 Invited speaker International Congress of Entomology, Brisbane, Australia.
1) "butterfly metapopulation dynamics from the parasitoids perspective" S. van Nouhuys
2) "Host-parasitoid dynamics in fragmented landscapes: patterns of dispersal and genetic variation" I. Hanski (presenter), M. Kankare, and S. van Nouhuys

April 04 Invited speaker at a the workshop on multitrophic level interactions above and below ground, Lund, Sweden

Oct. 03 Annual meeting of the Entomological Society of America, Cincinnati, Ohio. "Effects of iridoid glycosides on the development of herbivores and their endoparasitoids" J. Harvey (presenter), A. Biere and S. van Nouhuys

July 03 XIII International Entomophagous Insect workshop in Tucson, Arizona. "Spatial learning (or something) allows a parasitoid to use a host that is available for an extremely short time"

March 03 Invited speaker at the Symposium on Habitat Fragmentation and Trophic Interactions in Wageningen, NL. "A host and two parasitoids that each experience the same habitat differently"

Feb. 03 Invited speaker at the Symposium on Metapopulation Biology - Achievements and Challenges, University of Helsinki, Finland. "Mechanisms behind the population dynamics of the parasitoids of the Glanville fritillary butterfly"

Dec. 00 Annual meeting of the Entomological Society of America, Montreal, Quebec. "The affect of relative dispersal ability on the population dynamics of two parasitoids and their shared host"

Sept.99 at the XII International Entomophagous Insect workshop in Asilimar, California. "Population dynamics of a parasitoid wasp: from individual to metapopulation"

Nov. 98 Annual Meeting of the Entomological Society of America, Las Vegas, Nevada. "Host diet affects extinctions and colonizations in a parasitoid metapopulation" (with I. Hanski)

Aug. 96 Annual Meeting of the Ecological Society of America, Providence, Rhode Island. "Parasitoid wasps that forage in wild and cultivated habitats: Genetic differentiation between populations, and the magnitude of natural selection on foraging behavior"

June 96 Annual Meeting of the Society for the Study of Evolution, St. Louis, Missouri. "Natural selection on aspects of foraging behavior of the parasitoid wasp Cotesia glomerata from wild and cultivated host plant habitats"

Dec.94 Annual Meeting of the Entomological Society of America, Dallas, Texas."Between-population variation in individual foraging behavior of the parasitoid wasp Cotesia glomerata: Local adaptation?"

Dec.92 Annual Meeting of the Entomological Society of America, Baltimore, Maryland. "Searching behavior of individual parasitoid wasps in wild and cultivated host habitats"

Dec.89 Annual Meeting of the Entomological Society of America, El Paso, Texas. "Predatory mite population dynamics: colonization and localized dispersal of Phytoseiids" (with C. Pickel)

Poster presentations at meetings

March 02 Fourth International Conference on the Biology of Butterflies, Leiden, The Netherlands. "Stable parasitoid population dynamics through dispersal and learning. "S. van Nouhuys
"Variability of plant defensive chemistry: Does it affect host use of a specialist herbivore?" By M. Nieminen, J. Suomi, S. van Nouhuys, P. Sauri and M-L. Riekkola.

March 01 Annual meeting of the TMR Fraglands research group, Leeds, UK.
"Larval performance and suitability of host plants in Melitaea cinxia" By M. Nieminen, S. van Nouhuys and M. Singer.