Wyniki wyszukiwania

1

Ultrasonic communication in rodents

100%

Marchlewska-Koj A.

Polish Ecological Studies

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1994

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tom 20

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nr 3-4

2

Courtship and copulation of Helix lutescens Rossm. (Gastropoda: Pulmonata: Helicidae)

86%

Koralewska-Batura E.

Folia Malacologica

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1998

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tom 06

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nr 1-4

3

Courtship and behavioral maturation of male mouflons

86%

Bon R., Recarte J. M., Gonzalez G., Cugnasse J. M.

Acta Theriologica

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1995

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tom 40

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nr 3

This study fails to find qualitative differences in courtship (ie intra- and intersexual interactions), according to maie age in mouflon Ovis gmelini musimon (Pallas, 1811). Conversely, clear age differences arose concerning the proportion of time males dedicated to reproductive and non-reproductive activities. During the rut, males spent less time feeding, and more time scanning and in male-male interactions as age increased. Young males (< 2 years old) interacted much less agonistically with other males and courted females twice ¡ess than oldest males (> 7 years old). So male behavioral maturation does not only depend on age but could also be influenced by demographic constraints, ie presence of old dominant males. The male reproductive effort, however, seemed independent of the presence of old dominant males, which could reflect a developmental constraint. Young males would not have enough energy reserves because of growth to dedicate as much time as mature males to reproduction, even in the absence of these latter.

4

Food transfer in Montagu’s Harrier Circus pygargus during courtship

72%

Wiacek J.

Acta Ornithologica

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2006

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tom 41

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nr 1

5

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Analysis of mallard’s (Anas platyrhynchos) behavior depending on phenology period and the size of the flock on water basins in Szczecin

72%

Wojcieszak H., Wysocki D., Kaliciuk J.

Zeszyty Naukowe. Acta Biologica. Uniwersytet Szczeciński

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2013

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tom 20

The subject of the study is the behaviour of Mallard’s Anas platyrhynchos and was carried out in the city of Szczecin (Poland) in 2009–2010. We compared frequency of fights, rapes, courtships, copulations and whistles on a water basins within both big and small flocks, and in different phenology periods. The study shows significant relationship between season, number of ducks on a pond and frequency of fights, as well as between whistles and fights, whistles and season and courtships and season. The results show that the most active period for ducks are the autumn and winter months (pairing period), while more aggressive behaviours can be observed when the population density is high.

6

Effects of novel odours on the mating behaviour in mice

72%

Kokocinska A., Ensminger J., Jezierski T.

Animal Science Papers and Reports

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2017

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tom 35

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nr 3

The aim of this study was to examine whether and how different odorants placed on the bodies of female mice, but having no reward value for the males, affect courtship and mating behaviour of male mice towards females in oestrus and thus emitting female pheromones. In this manner, certain consequences of concurrent activation of the main olfactory system and the vomeronasal system were investigated. Four different odorants (white musk, lavender, peppermint and valerian) were used for swabbing female mice in oestrus. Using a total of 160 sexually naive outbred mice of both sexes, divided for each of 4 odorants into controls (not swabbed with odorant) and two experimental groups, in the experimental group I the females observed previously as controls were swabbed with one of the 4 odorants, while in the experimental group II, new naive females were swabbed with one of the 4 odorants. The females were observed in individual cages for 30 min. each, together with a respective sexually naive male. The latency between introduction of a male into a cage with a previously swabbed female and initiation of courtship and mating behaviours by males (sniffing, circling, misdirected mounting, copulation failures, successful copulation) was recorded. Latency to the occurrence of all sexual behaviours was significantly longer in experimental groups compared to controls. Latency to initiation of courtship behaviour, especially sniffing and circling, was shorter towards females swabbed with peppermint odour than for other odorants, indicating no aversion to this odour. However, the peppermint odour completely inhibited copulation. It is concluded that alien volatile odours with no reward value nevertheless exert differentiated suppressing effects on female mice pheromones inducing courtship and mating behaviour. Thus, it is hypothesized that the activation of the main olfactory system suppresses the accessory vomeronasal system.

7

Socio-ethogram of adult males versus biochemical-genetic variation in assessing phylogenetic relationships of the Caprinae

58%

Kurt F., Hartl G. B.

Acta Theriologica. Supplement

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1995

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nr 03

To investigate phylogenetic relationships among 9 genera of the Caprinae (Capra, Ammotragus, Hemitragus, Pseudois, Ovis, Rupicapra, Oreamnos, Nemorhaedus, Capri- cornis) behaviours involved in courtship and mating, aggression, threat, dominance, submission, and marking of adult males were subjected to phylogenetic analysis. Based on all 32 characters and 96 character states investigated, phylogenetic patterns generally were in good agreement with biochemical-genetic data avaliable. Discordance between phylogenetic trees constructed from behavioural and from biochemical-genetic traits as to the position of Ammotragus turned out to be associated with ethological functional categories. Behaviours involved in courtship and mating were identified as the most reliable ones for phylogenetic studies. Courtship displays function as isolation mechanisms among closely related taxa. This is of paramount importance in those forms where secondary sexual characters such as horns are poorly differentiated while in highly evolved taxa size and shape of horns may also trigger readiness for mating in estrous females.

Ograniczanie wyników

1 Acta Ornithologica

1 Acta Theriologica

1 Acta Theriologica. Supplement

1 Animal Science Papers and Reports

1 Folia Malacologica

1 Polish Ecological Studies

1 Zeszyty Naukowe. Acta Biologica. Uniwersytet Szczeciński

1 Bon R.

1 Cugnasse J. M.

1 Ensminger J.

1 Gonzalez G.

1 Hartl G. B.

1 Jezierski T.

1 Kaliciuk J.

1 Kokocinska A.

1 Koralewska-Batura E.

1 Kurt F.

1 Marchlewska-Koj A.

1 Recarte J. M.

1 Wiacek J.

1 Wojcieszak H.

1 Wysocki D.

1 2017

1 2013

1 2006

1 1998

2 1995