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Keywords: egg production
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Journal Articles
J Exp Biol (2019) 222 (4): jeb195347.
Published: 22 February 2019
... on their numerous insect hosts, including manipulating the host reproductive system in order to increase the bacteria spreading in a host population, and increasing the host fitness. Here, we demonstrate that the type of Wolbachia infection determines the effect on Drosophila melanogaster egg production as a proxy...
Journal Articles
J Exp Biol (2014) 217 (7): 1058–1064.
Published: 1 April 2014
... of fleas would be lowest on non-breeding females, moderate on pregnant females and highest on lactating females. We estimated feeding performance of the fleas via absolute and mass-specific bloodmeal size and reproductive performance via egg production and latency to peak oviposition. Host reproductive...
Journal Articles
J Exp Biol (2010) 213 (16): 2763–2769.
Published: 15 August 2010
...Joshua B. Benoit; Kevin R. Patrick; Karina Desai; Jeffrey J. Hardesty; Tyler B. Krause; David L. Denlinger SUMMARY In this study of the mosquito, Culex pipiens , we examined the impact of multiple bouts of dehydration and rehydration on survival, depletion of metabolic reserves and egg production...
Journal Articles
J Exp Biol (2010) 213 (12): 1991–2000.
Published: 15 June 2010
...Katrina G. Salvante; François Vézina; Tony D. Williams SUMMARY Recent studies have shown that the metabolic cost of avian egg production involves a 16–27% increase in metabolic rate (MR) above non-reproductive basal or resting values (BMR and RMR, respectively). To determine how the metabolic cost...
Journal Articles
J Exp Biol (2009) 212 (10): 1429–1435.
Published: 15 May 2009
... ). Factors regulating egg production in fleas Leptopsylla segnis (Leptopsyllidae:Siphonaptera). Parazitologiya 27 , 382 -388 (in Russian). Vashchenok, V. S. ( 2001 ). Age changes of fecundity in fleas Leptopsylla segnis (Siphonaptera: Leptopsyllidae). Parazitologiya 35 , 460 -464 (in Russian...
Journal Articles
J Exp Biol (2009) 212 (8): 1101–1105.
Published: 15 April 2009
... variable adjustment or `plasticity' in energy expenditure associated with egg production is repeatable among individuals between successive breeding attempts in female zebra finches ( Taeniopygia guttata ). Our study highlights the importance (a) of measuring`plasticity' or change associated...
Journal Articles
J Exp Biol (2008) 211 (18): 2960–2968.
Published: 15 September 2008
... reproductive anemia associated with egg production(hemodilution, transient suppression of erythropoiesis, resource dependence)in relation to (1) the time-course of development and recovery from anemia,(2) changes in specific hematological traits, and (3) the effect of diet quality, in female zebra finches...
Journal Articles
J Exp Biol (2008) 211 (3): 400–408.
Published: 1 February 2008
... observed during egg production in birds might be due to antagonistic pleiotropic effects of estrogens. This could generate costs of reproduction by reducing oxygen-carrying capacity during subsequent aerobically demanding stages such as chick-provisioning. Here we show that the reduction in hematocrit...
Journal Articles
J Exp Biol (2007) 210 (12): 2121–2127.
Published: 15 June 2007
... hosts. When parasitizing G. dasyurus , females of both flea species required a similar number of blood meals to start oviposition, independent of density. By contrast, fleas on M. crassus at higher densities needed less blood meals than at lower densities. Egg production of female fleas differed...
Journal Articles
J Exp Biol (2007) 210 (8): 1325–1334.
Published: 15 April 2007
...Katrina G. Salvante; Rosemary L. Walzem; Tony D. Williams SUMMARY Avian reproduction is generally timed to synchronize chick-rearing with periods of increased food abundance. Consequently, the energetically demanding period of egg production may coincide with periods of lower food availability...
Journal Articles
J Exp Biol (2005) 208 (13): 2533–2538.
Published: 1 July 2005
...François Vézina; Tony D. Williams SUMMARY The metabolic cost of egg production in birds (passerines) has been measured as a 16–27% increase in basal or resting metabolic rate (BMR and RMR, respectively) when comparing non-breeding values with those in egg-producing individuals. However, available...
Journal Articles
J Exp Biol (2004) 207 (12): 2065–2070.
Published: 15 May 2004
... consequences for egg production. * Author for correspondence (e-mail: cjp2@stir.ac.uk ) † Present address: School of Biological Sciences, Hatherly Laboratories,University of Exeter, Exeter, EX4 4PS, UK 25 3 2004 © The Company of Biologists Limited 2004 2004 Japanese quail...
Journal Articles
J Exp Biol (2003) 206 (24): 4443–4451.
Published: 15 December 2003
...François Vézina; Katrina G. Salvante; Tony D. Williams SUMMARY Little is known about the energy costs of egg production in birds. We showed in previous papers that, during egg production, European starlings( Sturnus vulgaris ) undergo a 22% increase in resting metabolic rate(RMR...