BIPEDALISM MODEL EVALUATOR		Home
Evaluative Framework
2 "Ecological"
2.1 Improved Food Acquisition	Food acquisition has been suggested as a key ‘pressure’ for the evolution of hominin bipedalism. Models of bipedal origins providing clear advantage for food procurement using bipedal locomotion are judged stronger than those that do not. Here foraging and carrying models were ranked highly. As thtere were no models that argued for reduced food procurement the lowest ratings were judged 'neutral'.
Models Ranked by This Criterion	EIF s4.1.5 Wetland USO foraging / Habitat Compulsion 9 s3.2.1 Postural feeding hypothesis / Feeding 9 s1.2.1 Carrying food back to gallery forest bases. / Forelimb pre-emption (carrying) 9 s1.2.3 Migration-carrying hypotheses / Forelimb pre-emption (carrying) 9 s1.2.2 Carrying and scavenging / Forelimb pre-emption (carrying) 9 s4.1.1 Coastal foraging / Habitat Compulsion 9 s1.2.4 Male Provisioning / Forelimb pre-emption (carrying) 8 s3.1.3 Other gathering / Feeding 8 s3.4.1 Stalking / Feeding 8 s3.4.3 General scavenging/hunting / Feeding 8 s4.1.2 Aquarboreal Model / Habitat Compulsion 7 s5.3.1 Efficiency of moving from tree to tree / Locomotor efficiency 7 s3.3.1 Arboreal predation / Feeding 7 s2.1.1 Nuptial Gifts / Behaviour 7 s3.1.2 Terrestrial squat feeding on the forest floor / Feeding 7 s3.1.1 Seed Eating / Feeding 7 s4.1.3 Amphibische Genalistheorie / Habitat Compulsion 6 s4.1.4 River Apes / Habitat Compulsion 6 s4.4.1 Descent from arboreal Hylobatian locomotion / Habitat Compulsion 6 s4.4.2 Arboreal "upwardly mobile" hypothesis / Habitat Compulsion 6 s4.4.3 Orang-utan-like hand assisted bipedalism / Habitat Compulsion 6 s6.1.1 Thermoregulatory Hypothesis / Thermoregulation 6 s1.4.1 Weapon Throwing / Forelimb pre-emption (carrying) 6 s1.1.1 General freeing of the hands / Forelimb pre-emption (carrying) 6 s1.3.1 Female driven infant carrying / Forelimb pre-emption (carrying) 6 s1.5.1 Tool carriage / Forelimb pre-emption (carrying) 6 s3.4.2 Specific Hunting / Feeding 6 s8.1.1 Evo Devo mutation / Random Genetic Factors 5 s4.3.1 Variability Selection Hypothesis / Habitat Compulsion 5 s2.3.1 Intra-specific threat displays / Behaviour 5 s2.2.1 Threat displays directed at other species / Behaviour 5 s2.4.1 Sentinel behaviour / Behaviour 5 s9.1.1 Multi-factorial / Combination 5 s5.1.1 Slow, long-distance walking / Locomotor efficiency 5 s1.5.2 Weapon wielding / Forelimb pre-emption (carrying) 5 s5.5.1 Endurance Running / Locomotor efficiency 5 s5.2.1 Biomechanical inevitability / Locomotor efficiency 5 s5.4.1 Locomotor de-coupling / Locomotor efficiency 5 s4.2.1 Walking on Snow or mud / Habitat Compulsion 5 s2.5.1 Phallic Display directed at females / Behaviour 5 s2.6.1 Copied Gimmick Idea / Behaviour 5 s7.1.1 Iodine deficiency / Dietary Factors 5