Summary
We examined the extent to which parental investment, as measured by brood defence, is determined by life-historical selection in a shortlived bird, the great tit (Parus major). Pairs tending first (n=20) and second (n=21) broods in the same Scots pine woods in 1983 were used to test predictions of a cost/benefit model of brood defence based on the species' average demography in coniferous forest. Furthermore, the differences in demography between pine and deciduous forest permitted us to test whether habitat-specific life-history would affect the seasonal pattern of defence. In the model, benefit was defined as the brood's potential contribution to a parent's fitness, and the cost as the potential loss if the defender dies in the act of defence. Univariate and multivariate procedures were applied to six measures of defence response to a live owl (Glaucidium perlatum) plus a taped mobbing chorus. Results proved three of the model's predictions to be false. In coniferous forest, neither the overall strength nor the individual variance of defence behaviour differed among first and second broods, nor was there any consistent difference in defence strength between pairs living in coniferous (n=54) or deciduous (n=84) forest as revealed by comparisons within each brood. These failures could be reconciled with the model by assuming that selection in the past had acted via the average demography of both types of habitat. The model received direct support from defence strength increasing with age of young and, more forcefully, becoming more influenced by brood size in second broods, regardless of habitat.
A difference in the strength of defence by the male and female suggests two more functions of behaviour: In first broods, the male risks more than the female as measured by five of six variables. This suggests that defence is facultatively linked to the need for territorial protection from predators all the year round. In the female's presence, the male, taking an additional risk, approaches the owl to half the distance of that of a single, though paired, male, suggesting an additional, social role of defence behaviour.
Taken together, anti-predator defence in the great tit serves to protect the brood, the home range and, in the male, the female mate. The magnitude of the benefits envisaged varies among the sexes.
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References
Andersson M, Wiklund CG, Rundgren H (1980) Parental defence of offspring: a model and an example. Anim Behav 28:536–542
Balen JH van (1973) A comparative study of the breeding ecology of the great tit Parus major in different habitats. Ardea 61:1–93
Berndt R, Winkel W (1967) Die Gelegegröße des Trauerschnäppers (Ficedula hypoleuca) in Beziehung zu Ort, Zeit, Biotop und Alter. Vogelwelt 88:97–136
Brown JL (1969) The buffer effect and productivity in tit populations. Am Nat 103:347–354
Charlesworth B, León JA (1976) The relation of reproductive effort to age. AM Nat 110:449–470
Croon B (1983) Vergleichende Untersuchungen zur Herbst- und Winterdynamik von vier Meisenarten (Parus major, P. caeruleus, P. ater, P. palustris) mit besonderer Berücksichtigung der Dispersion und ihrer populationsgenetischen Rolle. Diploma thesis, University Frankfurt/M
Curio E (1975) The functional organization of anti-predator behaviour in the pied flycatcher: A study of avian visual perception. Anim Behav 23:1–115
Curio E (1978) The adaptive significance of avian mobbing. I. Teleonomic hypotheses and predictions. Z Tierpsychol 48:175–183
Curio E (1980) An unknown determinant of a sex-specific altruism. Z Tierpsychol 53:139–152
Curio E, Regelmann K (1982) Fortpflanzungswert und “Brutwert” der Kohlmeise (Parus major). J Orn 123:237–257
Curio E, Regelmann K, Zimmermann U (1984) The defence of first and second broods by great tit (Parus major) parents: A test of predictive sociobiology. Z Tierpsychol 66:101–127
Dhordt A (1971) The regulation of numbers in Belgian populations of great tits. Proc Adv Study Inst Dynamics Numbers Popul, Oosterbeck, 1970, pp 532–547
Drent PJ (1983) The functional ethology of territoriality in the great tit Parus major L. PhD dissertation, Rijksuniversiteit, Groningen
Ellenberg H (1982) Vegetation Mitteleuropas mit den Alpen, 3rd edn. Ulmer, Stuttgart
Fisher RA (1930) The genetical theory of natural selection, rev ed 1958. Dover, New York
Gadgil M, Bossert WH (1970) Life historical consequences of natural selection. Am Nat 104:1–24
Glas P (1960) Factors governing density in the chaffinch (Fringille coelebs) in different types of wood. Arch Néerl Zool 13:466–472
Greig-Smith PW (1980) Parental investment in nest defence by stonechats (Saxicola torquata). Anim Behav 28:604–619
Hamilton WD (1964) The genetical evolution of social behaviour I, II. J Theor Biol 7:1–52
Hirshfield MF, Tinkle DW (1975) Natural selection and the evolution of reproductive effort. Proc Natl Acad Sci USA 72:2227–2231
Kellonäki E (1977) Food of the pigmy owl in the breeding season. Ornis Fenn 54:1–29
Kluijver HN (1951) The population ecology of the great tit, Panus major L. Ardea 39:1–135
Kluijver HN, Tinbergen L (1953) Territory and the regulation of density in titmice. Extr Arch Néerl Zool 10:265–289
Kluijver HN, Balen JH van, Cavé AJ (1977) The occurrence of time-saving mechanisms in the breeding biology of the great tit, Parus major. In: Stonehouse B, Perrins C (eds) Evolutionary ecology. University Park Press, Baltimore, pp 153–169
Milinski M (1978) Kin selection and reproductive value. Z Tierpsychol 47:328–329
Perrins CM (1979) British tits. Collins, London
Planka ER, Parker WS (1975) Age-specific reproductive tactics. Am Nat 109:456–464
Pugesck BH (1983) The relationship between parental age and reproductive effort in the California gull (Larus californicus). Behav Ecol Sociobiol 13:161–171
Regelmann K, Curio E (1983) Determinants of brood defence in the great tit Parus major L. Behav. Ecol Sociobiol 13:131–145
Stearns SC (1976) Life-history tacties: a review of the ideas. Q Rev Biol 51:3–47
Steven D De (1980) Clutch size, breeding success, and parental survival in the tree swallow (Iridoprocne bicolor). Evolution 34:278–291
Ulfstrand S, Alatalo RV, Carlson A, Lundberg A (1981) Habitat distribution and body size of the great tit Parus major. Ibis 123:494–499
Williams GC (1966) Natural selection, the costs of reproduction, and a refinement of Lack's principle. Am Nat 100:687–690
Winkel W (1975) Vergleichend-brutbiologische Untersuchungen an fünf Meisen-Arten (Parus spp.) in einem niedersächsischen Aufforstungsgebiet mit Japanischer Lärche Larix leptolepis. Vogelwelt 96:41–63, 104–114
Winkel W, Winkel D (1981) Zum Paarzusammenhalt bei Kohl-, Blau- und Tannenmeisen (Parus major, P. caeruleus and P. ater). Vogelwarte 30:325–333
Zimmermann U (1983) Die Jahreszeitabhängigkeit des Alarmverhaltens der Kohlmeise (Parus major) in einer akustischen Gefahrensituation. Diploma thesis, Dept of Biology, Ruhr-University, Bochum
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Curio, E., Regelmann, K. & Zimmermann, U. Brood defence in the great tit (Parus major): the influence of life-history and habitat. Behav Ecol Sociobiol 16, 273–283 (1985). https://doi.org/10.1007/BF00310991
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DOI: https://doi.org/10.1007/BF00310991