Functional aspects of the pair bond in winter in Bewick's swans (Cygnus columbianus bewickii)

Scott, Dafila

doi:10.1007/bf00300673

Cited by 55 publications

(30 citation statements)

References 8 publications

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“…Female ducks, which lay large clutches of large eggs, must feed intensively in order to acquire the nutrients (lipids and proteins) required for egg production and incubation (Alisauskas and Ankney 1992;Krapu and Reinecke 1992). By chasing away males that try to court or attempt forced extra-pair copulations, males enhance their mates' foraging efficiency (Ashcroft 1976;Scott 1980;Sorenson 1992) and increase their chances of nesting successfully (Sorenson t992). Male courtship/ attentiveness behavior is probably a reliable signal of male quality because such behavior demonstrates the male's interest in the female and his ability to invest in the pairbond.…”

Section: Behavioral Traitsmentioning

confidence: 99%

Sexual selection in the northern pintail (Anas acuta): the importance of female choice versus male-male competition in the evolution of sexually-selected traits

Sorenson

Derrickson

1994

Behav Ecol Sociobiol

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We experimentally studied the relative importance of plumage, dominance status, and courtship behavior in determining male pairing success in the northern pintail Arias acuta and assessed whether these traits function in female choice, male-male competition or both. In an experiment (experiment 1A) that eliminated the confounding effects of male-male competition and social courtship, females chose males with pure white breasts and colorful scapular feathers. When the same group of birds were free to interact (experiment 1B), male behavior was more important: females chose males that courted them intensely and were attentive to them, although preferred males again had whiter breasts and more colorful scapulars. In a second experiment (experiment 2), testing the effect of age on pairing success, females showed a significant preference for 2-year-old males over yearlings: 2-year-old males courted more and were more attentive to the female than yearlings; they were also more colorful than yearlings in a number of plumage measurements. Although males (in both experiments 1B and 2) were aggressive to one another while courting the female and dominant males were sometimes able to exclude subordinates from social courtship, contrary to expectation, we found no relationship between initial dominance rank and pairing success or dominance rank and age. In addition, dominance was not correlated with any of the morphological traits measured. Once chosen, however, subordinate males typically initiated fights with the higher-ranked male(s) and quickly achieved dominance. These results suggest that (1)females choose L.G.Sorenson ([]) -males based on a suite of morphological and behavioral characteristics, (2) male dominance relationships do not constrain active female choice, (3) a male's position in a dominance hierarchy is largely a result rather than a cause of female choice, and (4) female choice plays a more significant role than male-male competition in the evolution of several secondary sexual traits in male northern pintails.

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Section: Behavioral Traitsmentioning

confidence: 99%

Sexual selection in the northern pintail (Anas acuta): the importance of female choice versus male-male competition in the evolution of sexually-selected traits

Sorenson

Derrickson

1994

Behav Ecol Sociobiol

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“…These conflicts are solved by means of agonistic-submissive encounters that are typically translated into dominance hierarchies, in which every individual in a group holds a social rank reflecting its position in the hierarchy [Scott, 1980]. Typically, high dominance status confers upon individuals preferential access to resources [Wrangham, 1981;Whitten, 1983;Cheney and Seyfarth, 1990]; thus, high-ranking individuals are expected to have higher reproductive success than low-ranking ones [Whitten, 1983;Gomendio, 1990;Cassinello and Alados, 1996;Cassinello and Gomendio, 1996] (but see Packer et al [1995]).…”

Section: Introductionmentioning

confidence: 99%

Food access in captive Ammotragus: the role played by hierarchy and mother–infant interactions

Cassinello

2002

Zoo Biology

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An analysis of individuals' behavior when accessing a restricted food source (troughs) was carried out in a captive population of aoudad (Ammotragus lervia). Access to the troughs followed a strict hierarchical order, as higher-ranking individuals fed before lower-ranking ones. Unweaned male and female calves made use of the troughs from the ages of 2 and 3 months, respectively. Both fed from the troughs more frequently and for longer periods when their mother was present, which allowed them to make use of the troughs while skipping the hierarchical order. Calves received fewer threats when in proximity to their mothers, particularly in high-ranking families. Mothers defended their calves from other herdmates more frequently when at the feeding area than in other areas of the herd. However, only sated mothers let their calves feed freely from the troughs; unsated mothers showed an aggressive behavior even toward their calves. I conclude that a maternal presence is necessary for aoudad calves to successfully feed from troughs, and that families of higher social rank benefit by getting access to this food source earlier in the day and are disturbed less than low-ranking families.

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“…By maintaining the pair bond, pairs may derive direct benefits such as enhancement of the vigilance for predators (Hogstad 1995) or foraging efficiency (Scott 1980;Hogstad 1992) and/or indirect benefits in the following reproductive season by permitting the earlier onset of reproduction (Hall 1999), sequestering a known highquality mate (Black 1996). among others.…”

Section: Discussionmentioning

confidence: 99%

Maintenance of pair bond during the non-reproductive season in a monogamous pipefish Corythoichthys haematopterus

Sogabe

Yanagisawa

2007

J Ethol

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During the non-reproductive season, male and female Corythoichthys haematopterus came to a particular site every early morning and performed a series of displays, called greetings, for a few minutes. After exchanging greetings, they had no further interactions during the daytime. This behavioural pattern was basically the same as that observed during the reproductive season. All greeting pairs bred in the following reproductive season if both members were present. These results indicate that mate fidelity of this pipefish is very high and that daily greetings lasting only a few minutes were enough to maintain pair bond all year around.

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Functional aspects of the pair bond in winter in Bewick's swans (Cygnus columbianus bewickii)

Cited by 55 publications

References 8 publications

Sexual selection in the northern pintail (Anas acuta): the importance of female choice versus male-male competition in the evolution of sexually-selected traits

Sexual selection in the northern pintail (Anas acuta): the importance of female choice versus male-male competition in the evolution of sexually-selected traits

Food access in captive Ammotragus: the role played by hierarchy and mother–infant interactions

Maintenance of pair bond during the non-reproductive season in a monogamous pipefish Corythoichthys haematopterus

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