How to Draw a Turquoisebrowed Motmot Easy Easy
journal article
Behaviour
, pp. 309-320 (12 pages)
Published By: Brill
https://www. jstor .org/stable/4533728
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Nine young hand-reared motmots were tested for their responses to still and moving models of prey. The birds were given two series of cylindrical models. Series A bore various combinations of 4 cues: ink eye, pin eye, neck and motion. The birds responded significantly to every one, but motion was by far the most highly directing cue tested. Series B bore various colours and patterns, both as solidly coloured models and as present only on one third (either middle or end). The results from the solidly coloured models show (a) the birds were not inhibited by any plain colour tested; (b) they tended to ignore a camouflaged model; and (c) they showed strong aversion to a pattern that resembled a coral snake. The results of the coloured section models indicate that motmots are attracted to the dissimilar section only when it is one of the ends. This attraction to the different end, plus the highly directed response to motion, are probably sufficient to enable motmots to take small vertebrates such as lizards quickly and efficiently. /// 1. L'attaque de la proie par les jeunes Motmots á Sourcil Bleu (Eumomota superciliosa) a été étudiée sur 9 oiseaux élevés à la main. 2. On a fait 2 séries de tests pour essayer de découvrir les motifs qui poussent les Motmots à diriger leur attaque sur une nouvelle proie. 3. Les tests de la séries A ont fourni 4 motifs: "yeux" encre noire; "yeux" épingles; cou, et mouvements. 4. Les oiseaux ont réagi de façon significative à chaque indication fourni par les tests de la série A, mais le mouvement en a été de loin l'indication la plus puissante. 5. Les tests de la série B ont fourni divers couleurs et dessins; certains modèles complètement couverts, et d'autres avec couleur ou dessin seulement sur un tiers (le milieu ou le bout). 6. Les oiseaux n'ont été arrêtés par aucune des couleurs fournies par les tests. 7. La plupart des oiseaux n'ont pas admis un modèle camouflé. 8. Les oiseaux ont évité un dessin d'anneaux jaunes et rouges: un dessin similaire à celui d'une couleuvre dangereuse ("serpent corail"). 9. Les résultats des tests qui ont fourni des modèles avec un tiers teinté indiquent que les Motmots attaquent le tiers "différent" seulement lorsqu'il est à une extrémité. 10. Cet attrait au bout différent, avec la réaction très dirigée par le mouvement, est probablement suffisant à habiliter les Motmots à tuer vite des proies telles que des lézards.
Behaviour publishes original research pursuing Tinbergen's four questions and questions resulting from the interrelationship among the four. In addition, the editorial board encourages reviews of behavioural biology that illuminate emergent trends and new directions in behavioural research. Niko Tinbergen (1907-1988) defined 4 questions for research in behavioral biology: Proximate causation of behaviour: 1. How does an animal use its sensory and motor abilities to activate and modify its behaviour patterns? (physiological mechanisms) 2. How does an animal's behaviour change during its growth, especially in response to the experiences that it has while maturing? (ontogeny of development) Ultimate causation of behaviour: 3. How does the behaviour promote an animal's ability to survive and reproduce? (adaptation) 4. How does an animal's behaviour compare with that of other closely related species, and what does this tell us about the origins of its behavior and the changes that have occurred during the history of the species? (phylogeny) Niko Tinbergen shared, with Konrad Lorenz and Karl von Frisch, the 1973 Nobel Prize for Medicine or Physiology for contributions to the study of behavioural biology. Tinbergen was at heart an experimentalist who, more than Lorenz and von Frisch, applied the scientific method to the field of animal and human behaviour. It is his experimental approach to the study of behaviour that lasts to this day. That is why Tinbergen listed questions and not answers (theorems or laws). The answers (or at least some of them) are published monthly in Behaviour, the journal Tinbergen co-founded with W. H. Thorpe in 1948.
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Behaviour © 1976 Brill
Source: https://www.jstor.org/stable/4533728
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