Is mating of copepods associated with increased risk of predation?

Maier, Gerhard; Berger, Irmgard; Burghard, Wiebke; Nassal, Brigitte

doi:10.1093/plankt/22.10.1977

Cited by 45 publications

(31 citation statements)

References 25 publications

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“…Remating has been rarely studied in cyclopoid copepods, and mating frequency has been assumed to be an unimportant factor (Maier et al 1994, Hopp et al 1997, Maier et al 2000. However, the present study demonstrated that 3 or 4 matings were ordinary for Mesocyclops.…”

Section: Influence Of Mating Frequency On Maternal Fecunditycontrasting

confidence: 52%

“…In natural habitats, where copepods are a part of complex ecological communities, mating behavior might be a key factor in structuring the size and species composition of zooplankton communities, and frequent mating and/or a long mating period would probably increase the risk of predation (Maier et al 2000). Thus, the short mating process (a few minutes) observed in Mesocyclops species should reduce the risk of predation, but multiple mating compounds this risk since conjoined pairs are not as agile.…”

Section: Mating Behaviormentioning

confidence: 99%

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Comparative Evaluation of Fecundity and Survivorship of Six Copepod (Copepoda: Cyclopidae) Species, In Relation to Selection of Candidate Biological Control Agents Against Aedes aegypti

Phong¹,

Tuno²,

Kawada³

et al. 2008

Journal of the American Mosquito Control Association

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ABSTRACT. The fecundity and survival of 6 copepod species were assessed under laboratory conditions in order to choose the best candidates to control the aquatic stages of dengue mosquitoes in the field. Females of all the 6 species (Mesocyclops aspericornis, Mesocyclops pehpeiensis, Mesocyclops woutersi, Mesocyclops thermocyclopoides, Mesocyclops ogunnus, and Megacyclops viridis) mated more than once. Multiple mating resulted in increased egg production. The reproductive ability and longevity varied among the species, and M. aspericornis had the highest values. The lowest values were observed in M. thermocyclopoides. Multiple mating of males of M. aspericornis was also observed. The paternal fecundity decreased with each additional mating. There was no difference in the paternal fecundity between the males that mated at low and high female frequencies. The sperm stored in the M. aspericornis females remained viable for 30 days after storage under moist conditions at 25uC or 15uC. This feature in M. aspericornis represents an additional positive factor indicating that this species is a good biological agent for controlling mosquito larvae, especially in domestic water containers that may dry intermittently.

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Section: Influence Of Mating Frequency On Maternal Fecunditycontrasting

confidence: 52%

Section: Mating Behaviormentioning

confidence: 99%

Comparative Evaluation of Fecundity and Survivorship of Six Copepod (Copepoda: Cyclopidae) Species, In Relation to Selection of Candidate Biological Control Agents Against Aedes aegypti

Phong¹,

Tuno²,

Kawada³

et al. 2008

Journal of the American Mosquito Control Association

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show abstract

“…Common to both sexes is the well-documented elevated predation risk associated with mating (Maier et al 2000). Some species adapt behaviourally to high predation pressure by shortening the duration of the pre-copula attachment between the mates (Jersabek et al 2007).…”

Section: Discussionmentioning

confidence: 99%

First evidences of sexual selection by mate choice in marine zooplankton

Ceballos

Kiørboe

2010

Oecologia

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Sexual selection is potentially important in marine zooplankton, presumably the most abundant metazoans on earth, but it has never been documented. We examine the conditions for sexual selection through mate choice and describe mating preferences in relation to size in a marine zooplankter, the pelagic copepod Acartia tonsa. Males produce spermatophores at a rate (~1 day(-1)) much lower than known female encounter rates for most of the year and the decision to mate a particular female thus implies lost future opportunities. Female egg production increases with female size, and males mating larger females therefore sire more offspring per mating event. Similarly, females encounter males more frequently than they need to mate. Large males produce larger spermatophores than small males and the offspring production of female increases with the size of the spermatophore she receives. Additionally, large spermatophores allow females to fertilize eggs for a longer period. Thus, mating with large males reduces the female's need for frequent matings and she may sire sons that produce more offspring because size is heritable in copepods. Finally, we show that both males and females mate preferentially with large partners. This is the first demonstration of sexual selection by mate choice in a planktonic organism.

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“…Swimming behavior-Elevated rates of predation mortality may be associated with feeding (Tiselius et al 1997) and mating activities in copepods (Maier et al 2000). Such behaviors may therefore reflect conflicts between different objectives.…”

Section: Discussionmentioning

confidence: 99%

Motility patterns and mate encounter rates in planktonic copepods

Kiørboe

Bagøien

2005

Limnol. Oceanogr.

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Mate encounter rates in pelagic copepods depend on the characteristics of the mate detection mechanism as well as on the motility patterns and concentrations of males and females. We describe male and female motility patterns in two species (Centropages typicus and Pseudocalanus elongatus) in which the females excrete male-attracting pheromones and in one species (Acartia tonsa) in which the mates are detected by hydromechanical signals. For both pheromone-producing species, male and female motilities differ strongly; males are more directionally persistent and swim as fast as or faster than the females, and only at scales exceeding several centimeters do the male motilities resemble random walk. This prevents resampling of the same volume at the scale of encounter and maximizes the rate at which males encounter female signals. In contrast, female motility patterns are more similar to random walk, even at small scales. For the species depending on hydrodynamic cues and in which detection is practically symmetrical between the mates, male and female motilities are similar and can both be described as random walk, also at small scales. We develop simple encounter models and utilize information on motility patterns and mate signaling from our own observations and the literature to estimate search volume rates for pelagic copepods ranging between 0.6-3.0 mm in length. We show that pelagic copepods are capable of searching tens to thousands of liters of ambient water for mates daily, that search capacity increases approximately with the cube of copepod length for both chemical and hydrodynamic signalers, and that these impressive mate search volume rates are sufficient to sustain populations at typical adult densities.

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Is mating of copepods associated with increased risk of predation?

Cited by 45 publications

References 25 publications

Comparative Evaluation of Fecundity and Survivorship of Six Copepod (Copepoda: Cyclopidae) Species, In Relation to Selection of Candidate Biological Control Agents Against Aedes aegypti

Comparative Evaluation of Fecundity and Survivorship of Six Copepod (Copepoda: Cyclopidae) Species, In Relation to Selection of Candidate Biological Control Agents Against Aedes aegypti

First evidences of sexual selection by mate choice in marine zooplankton

Motility patterns and mate encounter rates in planktonic copepods

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