Sexual dimorphism and the impact of temperature on the pupal and adult stages of <i>Sepedon spinipes spinipes</i>, a potential biological control agent of fascioliasis

McDonnell, Rachel; Mulkeen, C. J.; Gormally, Michael J.

doi:10.1111/j.1570-7458.2005.00267.x

Cited by 10 publications

(7 citation statements)

References 23 publications

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“…Body size influences all life history traits; therefore, the diversity and interactions of the factors that determine body size have attracted considerable attention (Peters, 1983; LaBarbera, 1989; Bronikowski, 2000; Olsen, Reginato & Wang, 2000; Foellmer & Fairbairn, 2005; McDonnell, Mulkeen & Gormally, 2005; Osmundson, 2006). For analytical reasons, the respective contributions of the major selective forces (i.e.…”

Section: Introductionmentioning

confidence: 99%

Which proximate factor determines sexual size dimorphism in tiger snakes?

Bonnet

Lorioux

Pearson³

et al. 2011

Biological Journal of the Linnean Society

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Diverse interactions between factors that influence body size complicate the identification of the primary determinants of sexual size dimorphism. Using data from a long-term field study (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009), we examined the contributions of the main proximate factors potentially influencing sexual size dimorphism from birth to adulthood in tiger snakes (Notechis scutatus). Data on body size, body mass and body condition of neonates, juveniles and adults were obtained by mark-recapture. Frequent recaptures allowed us to monitor reproductive status, diet and food intake, and to estimate survival and growth rates in age and sex classes. Additional data from females held briefly in captivity enabled us to assess reproductive output and the body mass lost at parturition (proxies for reproductive effort). From birth to maturity, individuals of both sexes experienced similar growth and mortality rates. We found no difference in diet, feeding and survival rates between the sexes, nor between juveniles and adults. On maturity, despite comparable diet and food intake by both sexes, the high energy requirements of vitellogenesis and gestation were responsible for a depletion of body reserves and probably resulted in a marked decrease in growth rates. Males were largely exempt from such costs of reproduction, and so could grow faster than females and attain larger body sizes. The absence of niche divergence between the sexes (uniformity of habitat, lack of predators) suggests that the impact of differential energetic investment for reproduction on growth rate is probably the main proximate factor influencing sexual size dimorphism in this species.

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Section: Introductionmentioning

confidence: 99%

Which proximate factor determines sexual size dimorphism in tiger snakes?

Bonnet

Lorioux

Pearson³

et al. 2011

Biological Journal of the Linnean Society

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“…With the development of anthelmintic resistance in many parts of the world (Fairweather and Boray 1999; Moll et al. 2000; Mitchell 2002; O'Brien and Scully 2002), it is important to investigate other avenues of potential control (Mc Donnell et al. 2005b).…”

Section: Introductionmentioning

confidence: 99%

“…Variation in hatching patterns between species is related to their phenologies. For information on temperature effects on the pupal and adult stages of S. s. spinipes , see Mc Donnell et al. (2005b).…”

Section: Introductionmentioning

confidence: 99%

“…In Ireland alone, fascioliasis cost the agricultural sector €25 million in 2001 because of mortality and decreased production as a result of reduced weight gain, milk production and fertility (O'Brien and Scully 2002). With the development of anthelmintic resistance in many parts of the world (Fairweather and Boray 1999;Moll et al 2000;Mitchell 2002;O'Brien and Scully 2002), it is important to investigate other avenues of potential control (Mc Donnell et al 2005b).…”

Section: Introductionmentioning

confidence: 99%

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Thermal effects on the egg stage of four sciomyzids with reference to phenology and biocontrol potential

Donnell

Gormally

2007

J Applied Entomology

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With the global economic cost of liver fluke estimated at US$2000 million annually, alternative sustainable control methods need to be considered. One such option is biological control using malacophagous sciomyzids (Dipt.,). The effect of a range of temperatures (14, 17, 20, 23 and 26°C) on the duration of the egg stage of Sepedon spinipes spinipes (Scopoli), Pherbina coryleti (Scopoli), Tetanocera ferruginea Falle´n and Psacadina verbekei Rozkosˇny´was assessed using thermostatically controlled waterbaths (16 h light : 8 h dark). In general, for all species, the mean and median egg incubation periods decreased as the temperature increased. Optimum growth temperatures for mass rearing purposes are highlighted for each species. The cryopreservation ()20°C) of newly oviposited eggs for the purpose of long-term storage was also assessed and possible reasons for the variability in the duration of the egg stage between the species in relation to their phenologies are discussed.

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“…Whereas aquatic predaceous Tetanocerini probably evolved from shoreline predators early after divergence from a common stock with the Sciomyzini, they then probably acquired aquatic adaptations and became the basic line from which semiterrestrial and terrestrial Tetanocerini evolved (24). This group includes species that have been the main subjects of controlled laboratory experiments [Ilione albiseta (46,47), Sepedon fuscipennis (8, 31), S. sphegea (44,50), S. spinipes (75,83,85,86), and Tetanocera ferruginea (71)(72)(73)(74)124)] (see Laboratory Experimental Studies on Behavior and Development, below).…”

Section: Predationmentioning

confidence: 99%

Key Aspects of the Biology of Snail-Killing Sciomyzidae Flies

Murphy

Knutson²,

Chapman

et al. 2012

Annu. Rev. Entomol.

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The biology of snail-killing flies (Diptera: Sciomyzidae) has been studied intensively over the past half-century, especially over the past decade. Today, sciomyzids are biologically the best-known group of higher Diptera. The overarching research objectives are evaluation of sciomyzids as biocontrols of disease-carrying or agriculturally important snails and slugs and as a paradigm group for the study of the evolution of diverse feeding and associated behaviors in flies. We present reviews and analyses of some key features of particular scientific and societal interest, including behavioral and phenological groups; laboratory experimental studies on behavior and development; population biology, bioindicators, ecosystem service provision, and conservation; phylogenetics, molecular studies, and evolutionary biology; and biocontrol.

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Sexual dimorphism and the impact of temperature on the pupal and adult stages of Sepedon spinipes spinipes, a potential biological control agent of fascioliasis

Cited by 10 publications

References 23 publications

Which proximate factor determines sexual size dimorphism in tiger snakes?

Which proximate factor determines sexual size dimorphism in tiger snakes?

Thermal effects on the egg stage of four sciomyzids with reference to phenology and biocontrol potential

Key Aspects of the Biology of Snail-Killing Sciomyzidae Flies

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