Dr. ir. P. (Patrick) Jansen

Professional background

• MSc Biology, Wageningen University (1993)
• Policy official (nature management), Dutch Ministry of Agriculture, Nature management and Fisheries, The Hague (2002-2003)
• PhD, with distinction, Wageningen University (2003)
• Researcher (international nature management),
• Alterra Wageningen UR, Wageningen (2003-2004)
• NWO-WOTRO Postdoctoral fellow, Community and Conservation Ecology group, University of Groningen (2004-2007)
• NWO-VENI Postdoctoral fellow, Community and Conservation Ecology group, University of Groningen (2008-2010)
• Researcher, Forest Ecology and Forest Management Group, Wageningen University (2003-2010)
• Research Associate,Forest Ecology and Forest Management Group, Wageningen University (2011-present) 
• Assistant professor, Forest Ecology and Forest Management Group, Wageningen University (2010-2011)
• Staff scientist, Smithsonian Tropical Research Institute (2010-present)

Professional fields of interest
Plant-animal interactions; species coexistence; hunting impacts; seed dispersal; scatterhoarding rodents; forest dynamics; tropical forest

Other positions internal and external university

• Site manager of the TEAM program in Panama

Links

• The agouti enterprise (blog about the agouti project)
• Camera trapping photos from the agouti project (Flickr)
• Camera trapping videos from the agouti project (YouTube)
• Vertebrate Program of CTFS-SIGEO

Research projects

• Rodents as conditional mutualists of trees: When are agoutis effective seed dispersers? (NSF, 2008-2011)
• Contagious seed dispersal and shared natural enemies: Factors promoting tropical tree diversity (NWO-VENI, 2008-2010)
• Poachers, seed dispersal and seed predation in two palm species (STRI, 2005-present)
• Determinants of the spatial distribution of canopy tree species in a tropical forest (PhD Carol Garzon-Lopez, RUG, 2006-2010)
• Tropical tree seed dispersal in a multi-trophic context: An automated radio telemetry study at Barro Colorado Island , Panama (NWO-WOTRO, 2004-2006)
• The role of scatterhoarding in the regeneration of rodent-dispersed rainforest trees in French Guiana (NWO-WOTRO, 1997-2003)

Publications

For a complete overview, click here

• Jansen, P.A.; Bohlman, S.A.; Garzon-Lopez, C.X.; Olff, H.; Muller-Landau, H.C.; Wright, S.J. (2008) Large-scale spatial variation in palm fruit abundance across a tropical moist forest estimated from high-resolution aerial photographs.
  Ecography 31 (1). - p. 33 - 42.
• Jansen, P.A.; Meer, P.J. van der; Bongers, F. (2008) Spatial contagiousness of canopy disturbance in tropical rain forest: An individual - tree-based test. Ecology 89 (12). - p. 3490 - 3502.
• Acacio, V.; Holmgren, M.; Jansen, P.A.; Schrotter, O. (2007) Multiple recruitment limitation causes arrested succession in Mediterranean Cork Oak systems. Ecosystems 10 (7). - p. 1220 - 1230.
• Forget, P.-M. & P.A. Jansen (2007). Hunting Increases Dispersal Limitation in the Tree Carapa procera, a Nontimber Forest Product. Conservation Biology 21 (1): 106–113.
• Gálvez, D.; Jansen, P.A. (2007) Bruchid beetle infestation and the value of Attalea butyracea endocarps for Neotropical rodents. Journal of Tropical Ecology 23 (3). - p. 381 - 384.
• Forget, P.M.; Dennis, A.J.; Mazer, S.J.; Jansen, P.A.; Kitamura, S.; Lambert, J.E.; Westcott, D.A. (2007) Seed allometry and disperser assemblages in tropical rain forests: a comparison of four floras on different continents. In: Seed dispersal: theory and its application in a changing world / Dennis, A.J., Green, R.J., Schupp, E.W., Westcott, D.A., . - Wallingford : CABI, - p. 5 - 36.
• Laurance, W.F., C.A. Peres, P.A. Jansen, and L. D’Croz (2006). Emerging threats to tropical forests: What we know and what we don’t know. Pp. 437-462 in W.F. Laurance & C.A. Peres (eds). Emerging threats to tropical forests. University of Chicago Press, Chicago.
• Jansen, P.A., F. Bongers & H.H.T. Prins (2006). Tropical rodents change rapidly germinating seeds into long-term food supplies. Oikos 113: 449-458.
• Xiao, Z., P.A. Jansen, Z. Zhang (2006). Using seed-tagging methods for assessing post-dispersal seed fate in rodent-dispersed trees. Forest Ecology and Management 223: 18-23
• Jansen, P.A. & J. den Ouden (2005). Observing seed removal: remote video monitoring seed selection, predation and dispersal. pp. 363-378 in: P.M. Forget, J.E. Lambert, P.E. Hulme & S.B. Vander Wall (eds.) Seed fate: predation and secondary dispersal. CABI publishing, Wallingford.
• Den Ouden, J., P.A. Jansen & R. Smit (2005). Jays, mice and oaks: predation and dispersal of Quercus robur and Q. petraea in north-western Europe. Pp. 223-240 in: Forget, P. M., Lambert, J. E., Hulme, P. E. and Vander Wall, S. B. (eds.), Seed fate: predation, dispersal and seedling establishment. CABI publishing, Wallingford.
• Van der Hoeven, N., L. Hemerik, and P.A. Jansen (2005). Balancing Statistics and Ecology: Lumping Experimental Data for Model Selection. Pp. 233-265 in: Hemerik, L. and Reydon, T. A. C. (eds.), Current Themes in Theoretical Biology: A Dutch Perspective. Springer, Dordrecht.
• Jansen, P.A.; Bongers, F.J.J.M.; Hemerik, L. (2004) Seed mass and mast seeding enhance dispersal by a neotropical scatter-hoarding rodent
  Ecological Monographs 74 (2004). - ISSN 0012-9615 - p. 569 - 589.
• Van der Hoeven, N. , L. Hemerik & P.A. Jansen (2005). Balancing statistics and ecology: lumping experimental data for model selection. In: Reydon, T. & L. Hemerik (eds.). Current Themes in Theoretical Biology. A Dutch Perspective . Springer, Dordrecht, pp. 233-265. ISBN: 1-4020-2901-2
• Ouden, J. den; Jansen, P.A.; Smit, R. (2004) Jays, mice and oaks. Predation and dispersal of Quercus robur and Q. petraea in North-western Europe
  In: Seed fate: predation, dispersal and seedling establishment / Lambert, J.E, Hulme, P.E., Vander Wall, S.B., Forget, P.M., . - Wallingford / Oxfordshire : CAB International, 2004 - ISBN 0851998062 - p. 223 - 239
• Jansen, P.A. (2003) Scatterhoarding and tree regeneration : ecology of nut dispersal in a Neotropical rainforest
  Bij Wageningen Universiteit. Promotor(en): Bongers, Prof dr F.J.J.M.; Prins, Prof dr H.H.T., co-promotor(en): Wieren, Dr S.E. van. - [S.I.] : [s.n.], 2003 - ISBN 90-5808-777-8
• Jansen, P.A.; Bartholomeus, M.; Bongers, F.; Elzinga, J.A.; Ouden, J. den; Wieren, S.E. van (2002) The Role of Seed Size in Dispersal by a Scatter-hoarding Rodent
  In: Seed Dispersal and Frugivory: Ecology, Evolution and Conservation / D.J. Levey, W.R. Silva, M. Galetti. - Wallingford : CABI Publishing, 2002. - ISBN 0 85199 525 X - p. 209 - 225.
• Jansen, P.A.; Zuidema, P.A. (2001) Logging, seed dispersal by vertebrates, and natural regeneration of tropical timber trees
  In: The cutting edge: conserving wildlife in logged tropical forest / Fimbel, Grajal and Robinson. - New York : Columbia University Press, 2001. - (Biology and Resource Management Series). - ISBN 0-231-11455-9 - p. 35 - 59.
• Jansen, P.A.; Forget, P.M. (2001) Scatterhoarding and tree regeneration
  In: Nouragues.Dynamics and Plant-Animal Interactions in a Neotropical Rainforest / Bongers et al (eds.). - Dordrecht/Boston/London : Kluwer, 2001. - ISBN 1-4020-0123-1 - p. 275 - 288.