Parker, G. A., & MacNair, M. R. (1978). Models of parent-offspring conflict. I. Monogamy. Anim. Behav., 26, 97–110.
Abstract: Theoretical models for Trivers (1974) concept of parent-offspring conflict are examined for species in which the effects of the conflict are felt by full sibs. A rare conflictor gene will spread if Image , whereÆ’(m) is the fitness gained by a conflictor relative to a non-conflictor offspring (Æ’(m) >1), and m is the amount of parental investment taken by a conflictor relative to m = 1 for a non-conflictor. The range of m alleles which can spread against the parent optimum decreases as the cost to the parent increases until a point is reached where there is no conflict of evolutionary interests. There would be no polymorphism for conflictor: non-conflictor alleles unless special conditions prevail. The conflictor allele which spreads most rapidly as a rare mutant against the parental optimum is not an evolutionarily stable strategy (ESS). The ESS for parent-offspring conflict in monogamous species has m0 = Æ’(m0)/2[dÆ’(m0)/dm0]. The analytical solutions are confirmed throughout by simulations.
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Murphy, L. B. (1978). The practical problems of recognizing and measuring fear and exploration behaviour in the domestic fowl. Anim. Behav., 26, Part 2, 422–431.
Abstract: In studying behaviour supposedly motivated by fear or by exploration, consideration should be given to the biological functions of these two systems and to the ways in which the experimental environment may affect the performance of ‘natural’ responses. Extreme caution is needed in comparing the effectiveness of different stimuli and the amounts of fear or exploration represented by different responses. In particular, it should never be assumed when making such comparisons that the relative intensities of different stimuli and responses are constant.
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Monfort A, M. N. (1978). Structure et répartition des populations de zèbres dur Parc de l`Akagera (Rwanda). Mammalia, 42, 315–322.
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LANGLOIS B et al,. (1978). Analyse des liaisons entre la morphologie et l`apitude au galop trot et au saut d'obstacles chez le cheval. Ann Génét Sél anim, 10, 443–474.
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KOWNACKI M et al,. (1978). Observations of the twenty. Genetica Polonica, 19, 61–77.
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Klingel H,. (1978). Was wird aus den Grevy- Zebras? Sielmanns Tierwelt, 2, 12–19.
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Klingel H,. (1978). Den Wildeseln wird die Wüste zu eng. Sielmanns Tierwelt, 11, 46–51.
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Klingel H,. (1978). La Vie Sociale des Zebres et des Antilopes. La Recherche, 86, 112–120.
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Iwuala, M. O., & Okpala, I. (1978). Studies on the ectoparasitic fauna of Nigerian livestock II: Seasonal infestation rates. Bull Anim Health Prod Afr, 26(4), 351–359.
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Iwuala, M. O., & Okpala, I. (1978). Studies on the ectoparasitic fauna of Nigerian livestock I: Types and distribution patterns on hosts'. Bull Anim Health Prod Afr, 26(4), 339–350.
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