| Incest Avoidance as a Function of Environment and Heredity [and Comments and Reply] RH Bixler, SA Altmann, DP Barash, M Waterhouse, B Charlesworth, ... Current anthropology 22 (6), 639-654, 1981 | 93 | 1981 |
| Substrate selection and seasonal variation in densities of invertebrates in stream pools of a tropical river M Arunachalam, KC Madhusoodanan Nair, J Vijverberg, K Kortmulder, ... Hydrobiologia 213, 141-148, 1991 | 88 | 1991 |
| Reproductive biology of six Barbus species indigenous to Sri Lanka SS De Silva, J Schut, K Kortmulder Environmental Biology of fishes 12, 201-218, 1985 | 72 | 1985 |
| A comparative study in colour patterns and behaviour in seven Asiatic Barbus species (Cyprinidae, Ostariophysi, Osteichthyes): a progress report K Kortmulder Brill, 1972 | 67 | 1972 |
| Some aspects of the biology of three species of Puntius (= Barbus)(Pisces, Cyprinidae), endemic to Sri Lanka SS De Silva, K Kortmulder Deakin University, 2023 | 49 | 2023 |
| An ethological theory of the incest taboo and exogamy: With special reference to the views of Claude Levi-Strauss K Kortmulder Current Anthropology 9 (5, Part 1), 437-449, 1968 | 40 | 1968 |
| Threat and appeasement in Barbus stoliczkanus (Cyprinidae) DW Dunham, K Kortmulder, JJA Van Iersel Behaviour, 15-26, 1968 | 34 | 1968 |
| A comparative study of the food and feeding habits of Puntius bimaculatus and P. titteya (Pisces, Cyprinidae) SS De Silva, MJS Wijeyaratne, K Kortmulder Deakin University, 2023 | 33 | 2023 |
| Habitat, associations and competition of eight Barbus (= Puntius) species (Pisces, Cyrinidae) indigenous to Sri Lanka K Kortmulder, SS DE SILVA, J Schut Netherlands Journal of Zoology 34 (2), 159-181, 1983 | 33 | 1983 |
| Etho-ecology of seventeen Barbus species (Pisces; Cyprinidae) K Kortmulder Netherlands journal of zoology 32 (2), 144-168, 1981 | 26 | 1981 |
| A combined field study of Barbus (= Puntius) nigrofasciatus Günther (Pisces, Cyprinidae) and water chemistry of its habitat in Sri Lanka K Kortmulder, EJ Feldbrugge, SS De Silva Deakin University, 2023 | 24 | 2023 |
| Dry-season spawning in a cyprinid fish of southern India S Harikumar, KG Padmanabhan, PA John, K Kortmulder Environmental Biology of Fishes 39, 129-136, 1994 | 23 | 1994 |
| The agonic and hedonic styles of social behaviour K Kortmulder, Y Robbers Edwin Mellen Press, 2005 | 21 | 2005 |
| Patterns of distribution and endemism in some cyprinid fishes as determined by the geomorphology of South-West Sri Lanka and South Kerala (India) K Kortmulder Ichthyol Explor Freshw 1, 97-112, 1990 | 21 | 1990 |
| Displacement behaviour solving a silent contradiction K Kortmulder Acta biotheoretica 46, 53-63, 1998 | 19 | 1998 |
| On ethology and human behaviour K Kortmulder Acta biotheoretica 23 (2), 55-78, 1974 | 19 | 1974 |
| Play and evolution K Kortmulder | 15 | 1998 |
| The congener; a neglected area in the study of behaviour K Kortmulder Acta biotheoretica 35, 39-67, 1986 | 10 | 1986 |
| Food and feeding habits of two cyprinid forage fishes, Puntius (= Barbus) filamentosus (Val.) and P. amphibius (Val.) from South Kerala, India B Vijayakumar, KG Padmanabhan, K Kortmulder, KP Kumar Netherlands journal of zoology 36 (4), 449-460, 1985 | 10 | 1985 |
| The identity of Puntius melanampyx singhala (Duncker, 1911)(Pisces, Cyprinidae) SS De Silva, K Kortmulder, P Maitipe Deakin University, 2023 | 8 | 2023 |
