Prof. Werner Ulrich

Telefon: (56) 611-26-49zdjęcie profesora Ulricha

E-mail: ulrichw@umk.pl

Pokój: 260

Zainteresowania badawcze

My early entomological interest in the ecology and biogeography of parasitic Hymenoptera confronted me with the necessity to develop analytical tools to understand patterns of diversity and distribution from local to continental scales. Therefore I turned to ecological statistics and became particularly interested in patterns of species co-occurrence and phylogenetic constraints. In  cooperation with friends from USA, Brazil, and Spain we developed a number of sophisticated statistical tools in macroecology and clarified basic questions around community assembly. Recently, we apply these techniques to understand the spatial distributions of plant and animal species.

Publications

  1. Ulrich W., Soliveres S., Maestre F. T., Gotelli N. J., Quero J. L., Delgado-Baquerizo M.,. Bowker M. A., Eldridge D. J., Ochoa V., Gozalo B., Valencia E., Berdugo M, Escolar C., García-Gómez M., Escudero A., Prina A., Alfonso G., Arredondo T., Bran D., Cabrera O., Cea A., Chaieb M., Contreras J., Derak D., Espinosa C. I., Florentino A., Gaitán J., García Muro V., Ghiloufi W., Gómez-González S.,. Gutiérrez J. R.,  Hernández R. M., Huber-Sannwald E., Jankju M., Mau R. L., Mendes Hughes F., Miriti M., Monerris J., Muchane M., Naseri K., Pucheta E., Ramírez-Collantes D. A., Raveh E., Romão R. L., Torres-Díaz C., Val J., Veiga J. P., Wang D., Yuan X., Zaady E. 2014. Variability in climate and soil attributes control plant species turnover in global drylands. J. Biogeogr., in press.
  2. Husemann M., Ulrich W., Habel J.C. 2014. The evolution of contact calls in isolated and overlapping populations of two White-eye congeners in East Africa (Aves, Zosterops). BMC Evol. Biol., in press.
  3. Ulrich W., Piwczyński M., Zaplata M. K., Winter S., Schaaf W., Fischer A., 2014. Small-scale spatial variability in phylogenetic community structure during early plant succession depends on soil properties. Oecologia, in press
  4. Zalewski M., Dudek D., Tiunov A. K., Godeau J. F., Okuzaki Y., Ikeda H., Sienkiewicz P., Ulrich W. 2014. High niche overlap in stable isotope space of ground beetles. Ann. Zool. Fenn. 51: in press.
  5. Habel J. C., Mulwa R. K., Gassert F., Rödder D., Ulrich W., Borghesio L., Husemann M., Lens L. 2014. Population signatures of large scale, disjunction and small-scale, short-term habitat fragmentation in an Afromontane forest bird. Heredity, in press.
  6. Ulrich W., Soliveres S., Kryszewski W., Maestre F. T., Gotelli N. J. 2014. Matrix models for quantifying competitive intransitivity. Oikos, in press.
  7. Husemann M., Schmitt T., Zachos F. E., Ulrich W., Habel J. C. 2014. Palaearctic biogeography revisited: Evidence for the existence of a North African refugium for western Palaearctic biota. J. Biogeogr. 41: 81-94. pdf
  8. Habel J. C., Ulrich W., Peters G., Husemann M., Lens L. 2014. Lowland panmixia versus highland disjunction: Genetic and bioacoustic differentiation in two species of East African White-eye birds. Cons. Gen., in press.
  9. Fattorini S., Lo Monaco R., Di Giulio A., Ulrich W. 2014. Climatic correlates of body size in European tenebrionid beetles (Coleoptera: Tenebrionidae). Organisms Diversity Evolution, in press.
  10. Husemann M., Ulrich W., Habel J.C. 2014.The effects of local selection and sympatry on acoustic traits of two bird species (Aves, Zosteropidae). J. Heredity in press.
  11. Louy D., Habel J. C., Ulrich W. Schmitt T. 2014. Out of the Alps: the biogeography of a disjunctly distributed mountain butterfly, the Almond-Eyed Ringlet Erebia alberganus (Lepidoptera, Satyrinae). J. Heredity, in press.
  12. Ulrich W., Piwczynski M., Zaplata M. K., Winter S., Schaaf W., Fischer M. 2014. Soil conditions and phylogenetic relatedness influence total community trait space during early plant succession. J. Plant. Ecol., in press. pdf
  13. Hoste-Danyłow A., Danyłow  J., Ulrich W. 2013. Body mass-population density scaling at the local scale: Does the energy equivalence rule hold for forest mammals? Pol. J. Ecol.: in press.
  14. Fattorini S., Lo Monaco R., Di Giulio A., Ulrich W. 2013. Latitudinal trends in body length distributions of European darkling beetles (Tenebrionidae). Acta Oecol. 53: 88-94. pdf
  15. Hoste-Danyłow A., Ilieva-Makulec K., Olejniczak I., Hajdamowicz I., Stańska M., Marczak D., Wytwer J., Faleńczyk-Koziróg K., Ulrich W. 2013. The shape of the intraspecific metabolic rate – body size relationship influences interspecific biomass and abundance distributions of soil animals within a forest ecosystem. Ann. Zool. Fenn. 50: 289-302. pdf
  16. Gassert F., Schulte U., Husemann M., Ulrich W., Rödder D., Hochkirch A., Engel E., Meyer J., Habel J. C. 2013. From southern refugia to the northern range margin: Genetic population structure of the Common Wall Lizard Podarcis muralis. J. Biogeogr. 40: 1475-1498. pdf
  17. Ulrich W., Fattorini S. 2013. Longitudinal gradients in the phylogenetic community structure of European Tenebrionidae (Coleoptera) do not coincide with the major routes of postglacial colonization. Ecography 36:  in press. pdf
  18. Chmara, R., Szmeja, J., Ulrich W. 2013. Patterns of abundance and co-occurrence in aquatic plant communities. Ecol. Res. 28-387-395.
  19. Riedinger V., Müller J., Stadler J., Ulrich W., Brandl R. 2013.  Assemblages of bats are phylogentically clustered on a regional scale. Basic Appl. Ecol. 14: 74-80. pdf
  20. Ulrich W., Gotelli N. J. 2013. Pattern Detection in Null Model Analysis. Oikos, 122: 2-18. pdf
  21. Ulrich W., Zalewski M., Hajdamowicz I, Stańska M., Ciurzycki W., Tykarski P. 2013. Towards a general species –time – area – sampling effort relationship. Pol. J. Ecol. 61: 345-354. pdf
  22. Habel J. C., Ulrich W., Assmann T. 2013. Allele elimination recalculated: Nested subset analyses for molecular biogeographic data. J Biogeogr. 40: 769-777. pdf
  23. Augenstein B., Habel J. C., Ulrich W. 2013. Directional temporal shifts in community structure of butterflies and ground beetles in fragmented oligotrophic grasslands of Central Europe. Basic Appl. Ecol. 13: 715-724. pdf
  24. Zaplata M. K., Winter S., Fischer A., Kollmann J., Ulrich W. 2013. Species-driven phases and increasing structure in early-successional plant communities. Am. Nat. 181: E17-E27. pdf
  25. Ulrich W., Gotelli N. J.  2012. A null model algorithm for presence – absence matrices based on proportional resampling. Ecol. Modell. 244: 20-27. pdfSuppl
  26. Ulrich W., Almeida-Neto M. 2012. On the meanings of nestedness: back to the basics. Ecography 35: 865-871. pdf
  27. Fattorini, S., Ulrich W. 2012. Drivers of species richness in European Tenebrionidae (Coleoptera). Acta Oecol. 43:, 22-28.  pdf
  28. Ulrich W., Zalewski M., Uvarov A. V. 2012. Spatial distribution and species co-occurrence in soil invertebrate and plant communities on northern taiga islands. Ann. Zool. Fennici 49: 161-173 pdf.
  29. Ulrich W., Piwczyński, M., Maestre F. T., Gotelli N. J. 2012. Null model tests for niche conservatism, phylogenetic assortment and habitat filtering. Meth. Ecol. Evol. 3: 930-939. pdf
  30. Zalewski M., Sienkiewicz P., Kujawa K., Hajdamowicz I., Ulrich W. 2012. Ground beetles on islands: on the effects of habitat and dispersal. Ann. Zool. Fennici 49: 139-151.  pdf
  31. Fiera C., Ulrich W. 2012. Spatial patterns in the distribution of European springtails (Hexapoda: Collembola). Biol. J. Linn. Soc.105: 498-506.  pdf
  32. Fattorini S., Ulrich W. 2012. Spatial distributions of European Tenebrionidae point to multiple postglacial colonization trajectories. Biol. J. Linn. Soc. 105: 318-329. pdf
  33. Gotelli N. J., Ulrich W. 2012. Statistical challenges in null model analysis. Oikos 121: 171-180.pdf
  34. Almeida-Neto M., Frensel D., Ulrich W. 2012. Rethinking the relationship between nestedness and betadiversity: a comment on Baselga (2011). Gl. Ecol. Biogeogr. 21: 772-777. pdf
  35. Gotelli N. J., Ulrich. W., Maestre F. T. 2011. Randomization tests for quantifying species importance to ecosystem function. Meth. Ecol. Evol. 2: 634-642.  pdf
  36. Gotelli N. J., Ulrich. W. 2011. Over-reporting bias in null model analysis: a response to Fayle and Manica (2010). Ecol. Modell. 222: 1337-1339. pdf
  37. Ulrich W., Bąkowski M., Laštůvka Z. 2011. Spatial distributions of European clearwing moths (Lepidoptera: Sesiidae). Eur. J. Entomol. 108: 439-446. pdf
  38. Almeida-Neto M, Ulrich W. 2011. A straightforward computational approach for measuring nestedness using quantitative matrices. Environm. Modell. Softw. 26: 173-178. pdf
  39. Bąkowski M., Ulrich W., Laštůvka Z. 2010. Environmental correlates of species richness of European Sesiidae (Insecta: Lepidoptera). Eur. J. Entomol. 107: 563-575. pdf
  40. Ulrich W., Fiera C. 2010. Environmental correlates of body size distributions of European springtails (Hexapoda: Collembola). Gl. Ecol. Biogeogr 19.: 905-915. pdf
  41. Ulrich W., Gotelli N. J. 2010. Null Model Analysis of Species Associations using Abundance Data. Ecology 91: 3384-3397. pdf
  42. Ulrich W., Ollik M., Ugland K. I. 2010. A meta-analysis of species – abundance distributions. Oikos 119: 1149-1155. pdf
  43. Gotelli N. J. Ulrich. W. 2010. The empirical Bayes distribution as a tool to identify non-random species associations. Oecologia 162: 463-477. pdf
  44. Ulrich W., Hajdamowicz I., Zalewski M., Stańska M., Ciurzycki W., Tykarski P. 2010. Species assortment or habitat filtering: a case study of spider communities on lake islands. Ecol. Res. 25: 375-381.  pdf
  45. Ulrich W., Zalewski M., Hajdamowicz I., Stańska M., Ciurzycki W., Tykarski P. 2010. Tourism disassembles patterns of co-occurrence and weakens responses to environmental conditions of spider communities on small lake islands. Comm. Ecol. 11: 5-12.   pdf
  46. Ulrich W., Almeida-Neto M., Gotelli N. C. 2009: A comsumer’s guide to nestedness analysis. Oikos 118: 3-17. pdf
  47. Ulrich W., Fiera, C. 2009: Environmental correlates of species richness of European springtails (Hexapoda: Collembola). Acta Oecol.: 35:45-52. pdf
  48. Almeida-Neto M., Guimarães P.,Guimarães Jr P. R., Loyola R. D., Ulrich W. 2008. A consistent metric for nestedness analysis in ecological systems: reconciling concept and quantification. Oikos: 117:1227-1239. pdf
  49. Ulrich W., Komosiński K., Zalewski M. 2008. Body size and biomass distributions of carrion visiting beetles: Do cities host smaller species? Ecol. Res.: 23: 241-248. pdf
  50. Ulrich W., Szpila K. 2008. Body size distributions of Eastern European Diptera. Pol. J. Ecol. 56: 377-388. pdf
  51. Oleksa A, Ulrich W., Gawroński R. 2007. Host tree preferences of hermit beetles (Osmoderma eremita Scop., Coleoptera: Scarabaeidae) in a network of rural avenues in Poland. Pol. J. Ecol. 55: 315-323. pdf
  52. Ulrich W. 2007. Body size distributions of central European Coleoptera. Eur. J. Entomol.: 104:769-776. pdf
  53. Ulrich W., Buszko J. 2007. Sampling design and the shape of species – area curves on the regional scale. Acta Oecol. 31:54-59. pdf (proof).
  54. Ulrich W., Gotelli N. J. 2007a. Null Model Analysis of Species Nestedness Patterns. Ecology 88: 1824-1831. pdf
  55. Ulrich W., Gotelli N. J. 2007b. Disentangling community patterns of nestedness and species co-occurrence. Oikos 116: 2053-2061. pdf
  56. Ulrich W., Komosiński K., Zalewski M. 2007. Body size and biomass distributions of carrion visiting beetles: Do cities host smaller species? Ecol. Res.: 23: 241-248. pdf
  57. Ulrich W., Sachanowicz, K, Michalak M. 2007. Environmental correlates of species richness of European bats (Mammalia: Chiroptera). Acta Chiropterologica 9: 347-360. pdf
  58. Ulrich W. Zalewski M. 2007. Are ground beetles neutral? Basic Appl. Ecol. 8: 411-420. pdf (proof).
  59. Ulrich W., Zalewski M., Komosiński K. 2007. Diversity of carrion visiting beetles at rural and urban sites. Comm. Ecol. 8: 171-181. pdf
  60. Brose U., Jonsson T., Berlow E. L., Warren P., Banasek-Richter C., Bersier L.-F., Blanchard J. L., Brey T., Carpenter S. R., Blandenier M. – F. C., Cushing L., Dawah1 H. A., Dell1 T., Edwards F., Harper-Smith S., Jacob U., Ledger M. E., Martinez N. D., Memmott J., Mintenbeck K., Pinnegar J. K., Rall B. C., Rayner T. S, Reuman D. C., Ruess R., Ulrich W., Williams R. J., Woodward G., Cohen J. E. 2006. Consumer-resource body-size relationships in natural food webs. Ecology  87: 2411 – 2417. pdf
  61. Kownacki A., Dumnicka E., Kwandrans J., Galas J., Ollik M. 2006. Benthic commnunities in relation to environmental factors in small high mountain ponds threatened by air pollutants. Boreal Environm. Research 11: 484-492.
  62. Oleksa A, Ulrich W., Gawroński R. 2006. Occurrence of the marbled rose-chafer (Protaetia lugubris Herbst, Coleoptera, Cetoniidae) in rural avenues in northern Poland. J. Ins. Cons. 10: 241-247. pdf
  63. Ulrich W. 2006a. Decomposing the process of species accumulation into area dependent and time dependent parts. Ecol. Res. 21: 578-585. pdf
  64. Ulrich W. 2006b. Body weight distributions of European Hymenoptera. Oikos 114: 518-528. pdf
  65. Ulrich W., Zalewski M. 2006. Abundance and co-occurrence patterns of core and satellite species of ground beetles on small lake islands. Oikos 114: 338-348. pdf
  66. Zalewski M., Ulrich W. 2006. Dispersal as a key element of community structure: The case of ground beetles on lake islands. Div. Distr. 12: 767-775. pdf
  67. Brose U, Brlow E. L., Jonsson T., Banasek-Richter C., Bersier F. L., Blanchard J L., Brey T., Carpenter S. R., Blandenier M.-F. C., Cohen J. E., Cushing L., Dawah H. A., Dell T., Edwards F., Harper-Smith S., Jacob U., Knapp R. A., Ledger M. E., Martinez N. D., Memmott J., Mintenbreck K., Pinnegar J. K., Rall B. C., Rayner T., Ruess L., Ulrich W., Warren P., Williams R. J., Woodward G. and Yodzis P. 2005. Empirical body sizes of consumers and their resources. Ecology 86: 2545-2546. pdf
  68. Ulrich W. 2005a. Predicting species numbers using species – area and endemics – area relations. Biodiv. Conserv. 14: 3351-3362. pdf
  69. Ulrich W. 2005b. Regional species richness of families and the distribution of abundance and rarity in a local community of forest Hymenoptera. Acta Oecol.: 28: 71-76. pdf (proof)
  70. Ulrich W., Buszko J. 2005. Detecting biodiversity hotspots using species – area and endemics – area relationships: The case of butterflies. Biodiv. Conserv. 14: 1977-1988 pdf
  71. Ulrich W., Ollik M. 2005. Limits to the estimation of species richness: The use of relative abundance distributions. Div. and Distr. 11: 265-372. pdf
  72. Ulrich W., Buszko J., Czarnecki A. 2005. The local interspecific abundance – body weight relationship of ground beetles: A counterexample to the common pattern. Pol. J. Ecol. 53: 113-117. pdf (proof)
  73. Ulrich W. 2004a. Soil-living parasitic Hymenoptera: comparison between a forest and an open landscape habitat. Pedobiologia 48: 59-69.
  74. Ulrich W. 2004b. Allometric ecological distributions in a local community of Hymenoptera. Acta Oecologica 25: 179-186.
  75. Ulrich W. 2004c. Species co-occurrences and neutral models: reassessing J. M. Diamond’s assembly rules. Oikos 107: 603-609. pdf
  76. Ulrich W., Buszko J. 2004a. Habitat reduction and patterns of species loss. Basic Appl. Ecol. 5: 231-240. pdf (proof)
  77. Ulrich W., Buszko J., Czarnecki A. 2004. The contribution of Poplar plantations to regional diversity of ground beetles (Coleoptera: Carabidae) in agricultural landscapes. Ann. Zool. Fennici 41: 501-512. pdf
  78. Ulrich W., Ollik M. 2004. Frequent and occasional species and the shape of relative abundance distributions. Div. and Distr. 10: 263-269. pdf
  79. Ulrich W., Buszko J. 2003a. Self-similarity and the species – area relation of Polish butterflies. Basic Appl. Ecol. 4: 263-270.
  80. Ulrich W., Buszko J. 2003b. Species – area relationships of butterflies in Europe and species richness forecasting. Ecography 26: 365-374. pdf
  81. Ulrich W. 2001a. On the scale dependence of evenness. Polish J. Ecol. 49: 91-94.
  82. Ulrich W. 2001b. Spatial scaling laws and weight dependent distributions in guilds of Diptera and parasitic Hymenoptera. Polish J. Ecol. 49: 59-66.
  83. Ulrich W. 2001c. Estimating species numbers by extrapolation: a cautionary note. Polish J. Ecol. 49: 299-305.
  84. Ulrich W. 2001d. Models of relative abundance distributions I: model fitting by stochastic models. Polish J. Ecol. 49: 145-157.
  85. Ulrich W. 2001e Models of relative abundance distributions II: diversity and evenness -statistics. Polish J. Ecol. 49: 159-175.
  86. Ulrich W. 2001f. Ecological characteristics of rare species: the case of parasitic Hymenoptera. Polish J. Ecol. 49: 379-389.
  87. Ulrich W. 2001g. Relative abundance distributions of species: The need to have a new look at them. Polish J. Ecol. 49: 393-407.
  88. Ulrich W. 2000a. On species – area relationships I: fit of power function and exponential model. Polish J. Ecol. 48: 3-20.
  89. Ulrich W. 2000b. On species – area relationships II: slope and factor values of power function and exponential model. Polish J. Ecol. 48: 21-35.
  90. Ulrich W. 2000c. On species – area relationships III: the intercept of the power function and the exponential model. Polish J. Ecol. 48: 37-48.
  91. Ulrich W. 2000d. Niche segregation and coexistence of parasitic Hymenoptera of the Aspilota genus group (Hymenoptera, Braconidae) in a beech forest on limestone. Polish J. Ecol. 48: 225-238.
  92. Ulrich W. 2000e. Species – area relations generated by theoretical relative abundance distributions: parameter values, model fit and relation to species saturation studies. Polish J. Ecol. 48: 67-78.
  93. Ulrich W. 1999a. Temporal stability of community structure of the parasitic Hymenoptera in a beech forest on limestone. Polish J. Ecol. 47: 257-270.
  94. Ulrich W. 1999a. Estimating species numbers by extrapolation I: Comparing the performance of various estimators using large model assemblages. Polish J. Ecol. 47: 271-291.
  95. Ulrich W. 1999c. Estimating species numbers by extrapolation II: determining the minimum sample size to obtain a certain fraction of species in a community. Polish J. Ecol. 47: 293-305.
  96. Ulrich W. 1999d. Morphology and ecology in the parasitic Hymenoptera: analysis of three morphological parameters and their relationship to ecological factors. Polish J. Ecol 47: 117-133.
  97. Ulrich W. 1999e. The density – size and the biomass – weight distribution is generated by the species – size distribution together with density fluctuations: evidence from model species distributions in the Hymenoptera. Polish J. Ecol 47: 87-101.
  98. Ulrich W. 1999f. Abundance, biomass and density boundaries in the Hymenoptera: analysis of the abundance. body size relationship and differences between forest and open landscape habitats. Polish J. Ecol 47: 73-86.
  99. Ulrich W. 1999g. Species composition, coexistence and mortality factors in a carrion-exploiting community composed of necrophagous Diptera and their parasitoids (Hymenoptera). Polish J. Ecol. 47: 49-72.
  100. Ulrich W. 1999h. The Hymenoptera of a dry meadow on limestone: species composition, abundance and biomass. Polish J. Ecol. 47: 29-47.
  101. Ulrich W. 1998a. The parasitic Hymenoptera in a beech forest on limestone III: the role of leaf litter for the parasitoid species. Polish J. Ecol. 46: 311-326.
  102. Ulrich W. 1998b. The parasitic Hymenoptera in a beech forest on limestone II: study of the sex ratios and their dependence on ecological factors. Polish J. Ecol. 46: 291-310.
  103. Ulrich W. 1998c. The parasitic Hymenoptera in a beech forest on limestone I: species composition, species turnover, abundance and biomass. Polish J. Ecol. 46: 261-289.
  104. Weber K., Plessmann U., Ulrich W.. 1989. Cytoplasmatic intermediate filament proteins of invertebrates are closer to nuclear lamins than are vertebrate intermediate filament proteins; sequence characterization of two muscle proteins of a nematode. EMBO Journal 8: 3221-3227.

Pozostałe publikacje

  1. Ulrich W., Zalewski M., Dudek D., Tiunov A. K., Godeau J. F., Okuzaki Y., Ikeda H., Sienkiewicz P. 2013. Intra- and interspecific niche variability in ground beetles on lake islands. Verhandl. Ges. Ökol. 32: 408.
  2. Zaplata M. K., Kollmann J., Ulrich W., Winter S., Schaaf W., Elmer M., Gerwin W., Fischer A. 2013. Cover balance or degree of autocorrelation? It is the same and integratively traces pattern formation during succession. Verhandl. Ges. Ökol. 32: 228.
  3. Danyłow A., Ulrich W., Ilieva-Makulec K., Olejniczak I., Hajdamowicz I., Stańska M., Marczak D., Wytwer J., Faleńczyk-Koziróg K. 2013. Does the energy equivalence rule apply to soil invertebrates. In: Hortal, J., Faller, K., Feeley, K., Field, R., Graham, C., Guilhaumon, F. & Gavin, D. (eds) Conference program and abstracts. Miami, Florida. Frontiers of Biogeography 4: 110.
  4. Ulrich W. 2009a. Nestdness analysis as a tool to identify ecological gradients. Ecol. Quest.: in press.
  5. Ulrich W. 2009b. Ecological interaction networks: prospects and pitfalls. Ecol. Quest.: in press.
  6. Oleksa A, Gawroński R., Ulrich W. 2009. Association of Ovalisia rutilans (Fabr., 1777) (Coleoptera: Buprestidae) with thermophilous habitats towards its range edge in northern Poland. Baltic J. Coleopt. 9: 39-44.
  7. Ulrich W. 2008a. Species abundance distributions in space and time. Ecol. Quest. 9:15-20
  8. Ulrich W. 2008b. Body size and the relative abundance of species. Ecol. Quest. 10: 19-29 pdf
  9. Zalewski M, Ulrich W. 2007. Local and regional interspecific abundance–body weight relationships of ground beetles. Ecol. Quest. 9: 21-24.
  10. Michalak M., Ulrich W. 2006. Factors generating the shape of species – area relationships. Verhandl. Ges. Ökol. 36: 166.
  11. Ollik M., Ulrich W. 2006. Factors influencing relative abundance distributions. Verhandl. Ges. Ökol. 36: 124.
  12. Ulrich W. 2006a. Metabolic theory at the local scale: the case of Hymenoptera. Ecol. Quest. 7: 9-14.
  13. Ulrich W. 2006b. The biomass – diversity relationship in parasitic Hymenoptera Ecol. Quest. 7: 15-20.
  14. Michalak M., Ulrich W. 2005. Factors generating the shape of species – area relationships – a research project. Verhandl. Ges. Ökol. 35: 218.
  15. Ollik M., Ulrich W. 2005. Fitting models of relative abundance to a large set of natural assemblages. Verhandl. Ges. Ökol. 35: 220.
  16. Ulrich W., Czarnecki A., Papzycka I. 2005. Earthworm activity in semi-natural and farmland soils. Electr. J. Pol. Agric. Univ. Ser. Agronomy 8, 3. http://www.ejpau.media.-pl/volume8/-issue3/art-13.html.
  17. Ulrich W., Zalewski M. 2005. Positive abundance – body weight relationships of ground beetles on lake islands. Verhandl. Ges. Ökol. 35: 485.
  18. Zalewski M., Ulrich W. 2005. The study of diversity patterns of ground beetles on lake islands. Verhandl. Ges. Ökol. 35: 224.
  19. Ulrich W. 2004a. PatchOccupancy – a FORTRAN program for modeling patterns of species spatial distributions. Ecol. Quest. 4: 13-19.
  20. Ulrich W. 2004b. Fitting stochastic models of relative abundance distributions to species abundance data. Ecol. Quest.: 127-134.
  21. Ulrich W. 2004c. Neutral macroecology – ecology without biology? Ecol. Quest.: 113-126.
  22. Ulrich W., Czarnecki A., Kruszyński T. 2004. Occurrence of pest species of the genus Oulema (Coleoptera: Chrysomelidae) in cereal fields in northern Poland. Electr. J. Pol. Agric. Univ. Ser. Agronomy 7, 1. http://www.ejpau.media.pl/series/volume7/issue1/agronomy/art-04.html.
  23. Ulrich W., Nath Z., Czarnecki A. 2004. Do poplar plantations contribute to the regional diversity in agricultural landscapes? Lessons from ground beetles. Verh. Ges. Ökol. 34: 210.
  24. Ollik M., Ulrich W. 2004. Shapes of local relative abundance distributions and the degree of anthropogenic influence. Verh. Ges. Ökol. 34: 62.
  25. Ulrich W. 2003. On the estimation of species numbers – how close can we come to reality? Verh. Ges. Ökol. 33: 121.
  26. Ollik M., Ulrich W. 2003. Factors generating relative abundance distributions – a research project. Verh. Ges. Ökol. 33: 432.
  27. Ulrich W. 2001. Differences in temporal variability and extinction probabilities between species of guilds of parasitic Hymenoptera. Polish J. Entomol. 70: 9-30.
  28. Ulrich W. 2000a. Influence of weather conditions on populations of parasitic Hymenoptera in a beech forest on limestone. Polish J. Entomol. 69: 47-64.
  29. Ulrich W. 2000b. Parasitic Hymenoptera and their hosts in a beech forest on limestone: dependence on biotic and abiotic factors. Polish J. Entomol. 69: 1-11.
  30. Ulrich W. 1999a. The numbers of species of Hymenoptera in Europe and assessment of the total number of Hymenoptera in the world. Polish J. Entomol. 68: 151-164.
  31. Ulrich W. 1999b. Regional and local faunas of Hymenoptera. Polish J. Entomol. 68: 217-230.
  32. Ulrich W. 1999c. Phenology, stratification and life cycles of the parasitic Hymenoptera in a beech forest on limestone. Polish J. Entomol. 68: 231-257.
  33. Ulrich W. 1999d. Phenology and life cycles of the parasitic Hymenoptera of a dry meadow on limestone. Polish J. Entomol. 68: 383-405.
  34. Ulrich W. 1999e. Ecological and morphological factors shaping communities of parasitic Hymenoptera. Unpublished habilitation thesis, Toruń.
  35. Ulrich W. 1989. Parasitoidgilden des Göttinger Waldes: Zahl der Arten, Populationsschwankungen und Aggregation. Verhandl. Ges. Ökol. 17: 299-306.
  36. Ulrich W. 1988. Welche Faktoren beeinflussen die Populationen und die Strukturen der Gemeinschaften von bodenlebenden parasitoiden Hymenopteren in einem Buchenwald. Thesis Göttingen.
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