maandag 13 april 2026

Publications Koenraad Kortmulder; arranged according to main subjects


1. Comparative studies of Barbs (Cyprinidae): behaviour, reproduction, colours, ecology, food and feeding.

General:  

Kortmulder, K. 1972. A comparative study in colour patterns and behaviour in seven Asiatic Barbus species. Behaviour Suppl. 19: xiii, 331 pp.

Kortmulder, K. 1982. Etho-ecology of 17 Barbus species. Neth.J.Zool.: 144-68.

Kortmulder. K. & Y. Robbers, 2011. Barbelenverhalen I; Vissen in Tropisch Water. Brussel, ASP.

Kortmulder, K & Y. Robbers, 2017. Barbelenverhalen II; Ethologie in Evolutie. Leiden, Lugdunum.

Reproduction, behaviour and fysiology:

Dunham, D.W., K. Kortmulder & J.J.A.van Iersel, 1968. Threat and appeasement in Barbus stoliczkanus. Behaviour 30: 15-26.

De Silva, S.S. & K.Kortmulder, 1977. Some aspects of the biology of three species of Barbus endemic to Sri Lanka. Neth.J.Zool. 27: 182-94.

Kortmulder, K. 1978a. Barbelen uit tropisch Azië (Barbus tetrazona). Het Aquarium 48: 174-80.

Kortmulder, K.  1978b. Barbelen uit tropisch Azië (Barbus nigrofasciatus). Het Aquarium 49: 142-52.

Kortmulder, K., E.J.Feldbrugge & S.S.De Silva, 1978.  A combined field study of Barbus nigrofasciatus and water chemistry of its habitat in Sri Lanka. Neth.J.Zool. 28: 111-31.

Schut, J.A., S.S.De Silva & K.Kortmulder, 1984. Habitat, associations and competition of eight Barbus species indigenous to SW Sri Lanka. Neth.J.Zool. 34: 159-81.

De Silva, S.S., J.A.Schut & K.Kortmulder, 1985. Reproductive biology of six Barbus species indigenous to Sri Lanka. Env.Biol.Fish. 12: 201-18.

Kortmulder, K. 1986. Similar behaviour and colour patterns in three not closely related Barbus species; is evolutionary convergence a likely explanation? Behaviour 98: 180-212.

Kortmulder, K. 1987. Ecology and behaviour in tropical freshwater fish communities. Proc.Symp.Kuala Lumpur 1962, Archiv Hydrobiol.Beiheft 28: 503-13.

Kortmulder, K., K.G.Padmanabhan & S.S.De Silva, 1990. Patterns of endemism of some cyprinid fish as determined by the geomorfology of SW Sri Lanka and S Kerala (India). Ichthyol.Explor.Freshwaters 1 (2): 97-112.

Harikumar, S., K.G.Padmanabhan, P.A.John & K.Kortmulder, 1994. Dry season spawning in a cyprinid fish of S India. Env.Biol.Fish. 39: 129-36.

Food and feeding behaviour:

De Silva, S.S., K.Kortmulder & M.Wijeyaratne, 1977. A comparative study of the food and feeding habits of Barbus bimaculatus and B. titteya, Neth.J.Zool. 27: 253-63.

Prem Kumar, K., B.Vijayakumar, K.G.Padmanabhan & K.Kortmulder 1987. Food and feeding habits of two cyprinid forage fishes, Puntius filamentosus and P. amphibius from South Kerala. Neth.J.Zool. 36: 449-61.

Vijverberg, J., J.Heidweiller, J.G.Sevenster & K.Kortmulder, 2017. Food and micro-habitat partitioning among cyprinids in Sri Lankan hill-stream pools. Sri Lanka J.Aquat.Sci. 22(2): 71-82. DOI: http://doi.org/10.4038/sljas.v22i2.7532

Vijverberg, J., M.A.van der Land, A.Vreeke, P.B.Amarasinghe & K.Kortmulder, 2019. Availability of animal food organisms and their utilization by cyprinids in Sri Lankan hill-stream pools. Sri Lanka J.Aquat.Sci. 24(2): 53-63. DOI: http://doi.org/10.4038/sljas.v24i2.7567 

Kortmulder, K. & P.van der Wiele, 2023. Feeding behaviour, species associations and natural diets of 10 Cyprinid fish species from South-West Sri Lanka. https://doi.org/10.1101/2023.07.12.548677. 

Miscellaneous:

De Silva, S.S., K.Kortmulder & P.Maitipe 1981. The identity of Puntius melanampyx singhala. Neth.J.Zool. 31:777-85.

Kortmulder, K. & R.van der Poll, 1981. The juvenile and adult pigment patterns of Barbus lateristriga, B. titteya and B. narayani, and their taxonomic value. Neth.J.Zool. 31: 453-65.

Kortmulder, K. 2001. Barbus bandula en nog een nieuwe onbekende. (Het Aquarium 71(6): 194-5. [errata in later issue; “red Barbus cumingi” Het Aquarium 72(9): 269-70.

Kortmulder, K. 2005. Barbus denisonii (Day, 1865). Het Aquarium 75(9): 315-9.

Kortmulder, K. 2006. Bin Gettiya, ofwel Barbus dorsalis (Jerdon, 1849), de Langsnuitbarbeel. Het Aquarium 76(1): 30-3.

Kortmulder, K. 2016. Een aquariumvis van nature: de Kersrode Barbeel van Sri lanka (Puntius titteya Deraniyagala 1929). Het Aquarium 86(3): 62-7, April 2-16.

2. Incest avoidance in Humans and Animals:

Kortmulder, K. 1968. An ethological theory of the incest taboo and exogamy, with special reference to Cl. Lévi-Strauss’ views. Curr. Anthropol. 9: 437-49.

Kortmulder, K. 1974. On ethology and human behaviour. Acta Biotheor. 23: 55-78.

3. Tederheid (tenderness) in Animals and Humans:

Kortmulder, K. 1991. Tederheidsgedrag in zoölogisch perspectief. In: A.D.de Groot & J.P.Kruijt eds. Tederheid: over de gevolgen van tederheidstekort bij mens en dier. Amsterdam, SIGO.

Kortmulder, K. 1994. ‘Tederheid’ in zoological perspective. Social Biology and Human Affairs 59(1): 21-33.

Dubbeldam, J.L. & K.Kortmulder 2009. “Teder”behaviour (tenderness) - an exploratiom into the neural pathways of mild touch perception in mammals and birds. Animal Biology 59: 55-65.

4. The hedonic and agonic modes of social behaviouir:

Kortmulder, K. & Y.Robbers, 2005. The Agonic and Hedonic Styles of Social Behaviour. Lampeter, Queenston, Lewiston, The Edwin Mellen Press.

Kortmulder, K. 2012. On sustainable peace; a study in the theory of behavioural modes.  This blog.

5. Bird song:

Kortmulder, K. 2018. An analysis of the full song of five free-living urban European Blackbirds (Turdus merula); a network approach. http://doi.org/10.1101/505206v1 

6.Theories of behaviour.

Kortmulder, K. 1973. Evolutie van gedrag. In: G.P.Baerends ed. Ethologie, de Biologie van Gedrag. Wageningen, Pudoc. 136-57.

Kortmulder, K. 1974. On ethology and human behaviour. Acta Biotheor. 23: 55-78.

Kortmulder, K. 1983. Play-like behaviour; an essay in speculative ethology. Acta Biotheor. 32: 145-66.

Kortmulder, K. 1986. The congener: a neglected area in the study of behaviour. Acta Biotheor. 35: 39-67.

Kortmulder, K. 1987. Cross-bars and Protean displays: a question of fragmentation? In: P.Natarajan ed. Prof.Dr.N.B.Nair Felicitation Volume, Advances in Aquatic Biology and Fisheries 31-38.

Kortmulder, K. 1987. Some remarks on the significance of David Bohm’s views for biology. Acta Biotheor. 36: 275-80.

Kortmulder, K. 1991. Roles of symmetry breaking in behaviour. Discussion paper; limited circulation.

Kortmulder, K. & E. Feuth-de Bruijn 1993. On some generative orders of behaviour. Acta Biotheor. 41: 329-44.

Kortmulder, K., B.C.Goodwin & J.L.Dubbeldam 1993. Preface  In: J.L Dubbeldam, & B.C.Goodwin eds. Proceedings of the Symposium ‘Behaviour, Development and Evolution; in search of generative orders”. Acta Biotheor. 41(4): 273-4.

Kortmulder, K. 1994. Over de ‘vier vragen’ en de identiteit van de ethologie. NVG Mededelingenblad 3(1): 14-7.

Kortmulder, K. 1994. Towards a field theory of behaviour. Acta Biotheor.. 42: 281-93.

Kortmulder, K. 1998. Displacement behaviour; solving a silent contradiction. Acta Biotheor. 46(1): 53-63.

Kortmulder, K. 1998. Play and Evolution; second thoughts on the behaviour of animals. Utrecht, International Books. 

Kortmulder, K. 2024. Awakenings in triplicate: in ontogeny, after immobility, and to the presence of a congener. Comments on Ilan Golani’s concept of the mobiliti gradient, Front. Behav.Neurosci. 18: 1325481.  DOI: 10.3389/fnbeh.2024.1325481.

Kortmulder K. 2018. On tangentiality in the behaviour of animals and humans; an essay in instalments I-VII. This blog.

7. Book or article reviews:

1967. Parsons: The genetic analysis of behaviour. Book review. Genetica 38(3): 410-12.

1968. J. Hirsch: Behavior-genetic analusis. Book review. Genetica 39:158-60.

1969. Livingstone: Genetics, ecology and the origins of incest and exogamy. Invited comment. Curr. Anthropol. 10:53.

1975. W.H.van Dobben ed. Relaties tussen mens, dier en maatshappij. Book review. Acta Biotheor.24:171-2.

1981. Bixler: Incest avoidance as a function of environment and heredity. Invited comment. Curr.Anthropol. 22: 645.

1985. K.Wilber ed. Quantum questions; mystical writings of the world’s great physicists. Book treview. Acta Biotheor. 34: 91-2.

1990. Organism and mechanism, A sketch of the scientific work of Piet Sevenster. Neth.J.Zool. 40a: 561-4.

1993. With B.C.Goodwin and J.L.Dubbeldam. Preface to the proceedings of the symposium: ‘Behaviour, development and evolution; in search of generative orders’. Acta Biotheor..  41(4): 273-4.

1994. Mae-Wan Ho: The rainbow and the worm: the physics of organisms. Book review. Acta Biotheor..42(1): 86-7.

1997. McNeill: Keeping together in time. or the natural history of social cohesion.. A critical evaluation of W.H.McNeill’s new book. Acta Biotheor. 45: 87-91.

2001. Seymour W. Itzkoff (2000) The inevitable domination by Man; an evolutionary detective story. Book review. Acta Biotheor. 49: 73-4.

8. Varia:

Kortmulder, K. 1991. Over verklaringswijzen in de biologie. Discussiestuk; limited circulation.

Kortmulder, K. 1966. Dreigen en vechten van dieren en mensen. AO-reeks nr 1123: 1-14. Amsterdam, IVIO.

Kortmulder, K. 1966. Enkele notities over het gedrag van vissen. Biotechniek 5 (3/4) 33-7; 52-6..

Kortmulder, K. & Th.E.Spreij, 1987. The connectedness of all that is alive and the grounds of congenership; beyond a mechanicistic interpretation of life. Rivista di Biologia / Biology Forum 83(1): 107-27.

Kortmulder, K. 2001. Sermones Colloquii ab anno MCMLXXXVIII.. Leiden, Officina Vici Pacalis.

Kortmulder, K. 2005. Fruges Otii ab anno MM. Leiden, Officina Vici Pacalis.

Kortmulder, K. 2015. Reizen in Italië; “Wo die Zitronen Blühn”. Leiden, Officina Vici Pacalis.

Kortmulder, K.  2020. Mails for Madison; an adventurous project Leiden, Officina Vici Pacalis

Kortmulder, K. 2023.  Urbino.. Officina Vici Pacalis.

Kortmulder, K. 2021. Nature, Art and Values; an Essay in Three Parts. This blog. 2021.

9. Articles in The ASCAP Newsletter resp. ASCAP Bulletin (Across Species Comparisons and Psychiatry):

Kortmulder, K. 1996. The hedonic and agonic modes; a comparative perspective. The ASCAP Newsletter 9(1): 7-10.

---------------------. 2001. Some reminiscences of Michael R.A. Chance. The ASCAP Bulletin 2(1): 25-7.

---------------------   2003. Across species comparisons & tederheid. The ASCAP Bulletin 4(2): 8-9.


See further: this blog.