An experimental system for the automatic tracking and analysis of rotifer swimming behaviour

Coulon, P.; Charras, J. P.; Chassé, Jean-Luc; Clément, Pierre; Cornillac, Annie; Luciani, Anne; Wurdak, Elizabeth

doi:10.1007/978-94-009-7287-2_24

Cited by 25 publications

(15 citation statements)

References 4 publications

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“…These results are in accord with those of other investigators who also describe a decline in rotifer activity level or swimming speed with age [7,8]. Rotifer swimming be havior has been described in detail by Coulon et al [24] and by Clement [25].…”

Section: Discussionsupporting

confidence: 82%

Spontaneous Activity Level and Life Span in Rotifers: Lack of Support for the Rate of Living Theory

Enesco

McTavish²,

Garberi³

1990

Gerontology

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Spontaneous activity level was measured in rotifers of the species Asplanchna brightwelli on each day of their 5-day life span. No correlation was seen in group data between activity level and life span. However, data from individuals showed a positive correlation between life span and activity level in the latter half of the life span on 3 days out of 5. This tendency toward greater activity in the longer-lived rotifers is not consistent with the rate of living theory of aging.

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Section: Discussionsupporting

confidence: 82%

Spontaneous Activity Level and Life Span in Rotifers: Lack of Support for the Rate of Living Theory

Enesco

McTavish²,

Garberi³

1990

Gerontology

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“…Quantitative parameters of swimming were obtained from video-recording and by automatic tracking (Coulon et al, 1983 ;Clement et al, 1988). Tests were conducted from the eighth generation of the orthoclone onwards .…”

Section: Methodsmentioning

confidence: 99%

Foraging behaviour of Brachionus calyciflorus (Pallas): variations in the swimming path according to presence or absence of algal food (Chlorella)

Charoy¹,

Cl�ment²

1993

Hydrobiologia

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Both swimming and attachment behaviour of immature female Brachionus calyciflorus (Pallas) from a young orthoclone were analyzed under four experimental conditions : with and without algae (Chlorella), and with fed and starved individuals . Eighteen hours before the recording, two random groups were formed . To the first group, Chlorella was added . The second was placed in pure water . Both were filmed in red light to avoid a phototactic effect . Video-recorded swimming behaviour of B . calycii locus was analyzed by automatic tracking . Each B . calyc focus was filmed alternately in the presence or absence of Chlorella for five periods of 15 min . Under indentical light and temperature conditions the number of animals attached to the culture dish was measured with both starved and fed females . We observed a significant difference in swimming paths depending on the presence or absence of food, and the physiological state of the individuals . In the presence of Chlorella the linear speed was lower and the angular speed was greater . This increase in angular speed was more pronounced when females were subjected to a period of starvation before the experimentation . The attachment behaviour increased in the algal environment . This modification of swimming behaviour enables females to increase the time spent in a favorable food environment . 95

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“…From the video records obtained, an automatic computerized tracking device was used to transform each walking path into X-Y co-ordinates with an accuracy of 25 points per second (Coulon et al, 1983;Varley et al, 1994). As soon as a female perceives a host, she turns to it and walks more or less straight to it to attack it.…”

Section: Methodsmentioning

confidence: 99%

Inter-specific variation in the reactive distance of different aphid-parasitoid associations: analysis from automatic tracking of the walking path

Ralec¹,

Curty²,

Wajnberg³

2005

Appl. Entomol. Zool.

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The distance from which hosts are perceived by foraging parasitoid females has been repeatedly considered to be an important behavioural trait that is supposed to be related to their efficiency as biological control agents. In the present study, such a 'reactive distance' was quantified using the automatic analysis of video-recorded females' walking paths. Inter-specific variation of this trait was analysed by comparison between Aphis gossypii Glover, Myzus persicae Sulzer, and Sitobion avenae Fabricius, and three of their parasitoid species known to present different levels of specificity to these hosts: Aphelinus abdominalis Dalman, Aphidius colemani Viereck, and Aphidius picipes Nees. Responses to two different host instars of different size were also compared in each combination. On average, parasitoid females were able to perceive aphids from a distance of about 3 to 4 mm. The only significant difference observed was between the Aphelinus and the two Aphidius parasitoid species. No difference was detected between the different host instars or species tested. Females seem to be unable to discriminate between host and non-host species from a distance. These results seem to confirm the hypothesis of the use of a cuticular contact kairomone for host recognition at the species level.

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An experimental system for the automatic tracking and analysis of rotifer swimming behaviour

Cited by 25 publications

References 4 publications

Spontaneous Activity Level and Life Span in Rotifers: Lack of Support for the Rate of Living Theory

Spontaneous Activity Level and Life Span in Rotifers: Lack of Support for the Rate of Living Theory

Foraging behaviour of Brachionus calyciflorus (Pallas): variations in the swimming path according to presence or absence of algal food (Chlorella)

Inter-specific variation in the reactive distance of different aphid-parasitoid associations: analysis from automatic tracking of the walking path

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