THE ORIGIN OF HELPING - THE ROLE OF VARIABILITY IN REPRODUCTIVE POTENTIAL

[21] JACKAL HELPERS AND PUP SURVIVAL [J]. NATURE, 1979, 277 (5695) : 382 - 383

[22] Oster G.F., 1978, Monographs in Population Biology, pi

[23] RABENOLD KN, 1985, BEHAV ECOL SOCIOBIOL

[24] INVESTMENT AND RELATEDNESS - A COST-BENEFIT-ANALYSIS OF BREEDING AND HELPING IN THE PIED KINGFISHER (CERYLE-RUDIS) [J]. ANIMAL BEHAVIOUR, 1984, 32 (NOV) : 1163 - 1178

[25] THE EVOLUTION OF ALLOPARENTAL CARE AND ADOPTION IN MAMMALS AND BIRDS [J]. QUARTERLY REVIEW OF BIOLOGY, 1982, 57 (04) : 405 - 435

[26] SKUTCH ALEXANDER F., 1961, CONDOR, V63, P198, DOI 10.2307/1365683

[27] SKUTCH ALEXANDER F., 1935, AUK, V52, P257

[28] A MODEL FOR THE EVOLUTION OF DESPOTIC VERSUS EGALITARIAN SOCIETIES [J]. ANIMAL BEHAVIOUR, 1983, 31 (AUG) : 667 - 682

[29] VEHRENCAMP SL, 1980, 17TH P INT ORN C BER

[30] VEHRENCAMP SL, 1979, HDB BEHAVIORAL NEURO, V3, P351

[21] JACKAL HELPERS AND PUP SURVIVAL [J]. NATURE, 1979, 277 (5695) : 382 - 383

[22] Oster G.F., 1978, Monographs in Population Biology, pi

[23] RABENOLD KN, 1985, BEHAV ECOL SOCIOBIOL

[24] INVESTMENT AND RELATEDNESS - A COST-BENEFIT-ANALYSIS OF BREEDING AND HELPING IN THE PIED KINGFISHER (CERYLE-RUDIS) [J]. ANIMAL BEHAVIOUR, 1984, 32 (NOV) : 1163 - 1178

[25] THE EVOLUTION OF ALLOPARENTAL CARE AND ADOPTION IN MAMMALS AND BIRDS [J]. QUARTERLY REVIEW OF BIOLOGY, 1982, 57 (04) : 405 - 435

[26] SKUTCH ALEXANDER F., 1961, CONDOR, V63, P198, DOI 10.2307/1365683

[27] SKUTCH ALEXANDER F., 1935, AUK, V52, P257

[28] A MODEL FOR THE EVOLUTION OF DESPOTIC VERSUS EGALITARIAN SOCIETIES [J]. ANIMAL BEHAVIOUR, 1983, 31 (AUG) : 667 - 682

[29] VEHRENCAMP SL, 1980, 17TH P INT ORN C BER

[30] VEHRENCAMP SL, 1979, HDB BEHAVIORAL NEURO, V3, P351