Mate assessment

Lens, L., VanDongen, S., VandenBroeck, M., VanBroeckhoven, C. and Dhondt, A.A. (1997) Why female crested tits copulate repeatedly with the same partner evidence for the mate assessment hypothesis. Behav. Ecol. 8, 87-91. 

Scott D., Richmond R. C. and Carlson D. A. (1988) Pheromones exchanged during mating a mechanism for mate assessment in Drosophila. Anim. Behav. 36, 1164— 1173. 

O Serial mating Assesses Adult males Number of implantation Does not provide information OECD... 

Dunn AM (1998) The role of calceoli in mate assessment and precopula guarding in Gammarus. Anim Behav 56 1471-1475... 

Written by Robert C Atkins and Francis A Carey the so lutions manual provides step by step solutions guiding the student through the reasoning behind each problem m the text There is also a self test at the end of each chap ter designed to assess the student s mastery of the mate rial... 

Resistance to abrasion The resistance to abrasion of electroless nickel-phosphorus hardened to 600 Hy, assessed by Taber abrasion tests, has been found to be double that of electroplated nickel However, electroless nickel coatings are not suitable for applications where two electroless nickel surfaces rub together without lubrication unless the values of hardness are made to differ by over 200 Hy units. Galling of aluminium, titanium or stainless steel may be overcome by applying electroless nickel to one of the two mating surfaces. 

Rich T.J. and Hurst J.L. (1999). The competing countermarks hypothesis reliable assessment of competitive ability by potential mates. Anim Behav 58, 1027-1037. 

Although the increase in deaths in female mink was statistically significant at the high dose, it was not clear if the deaths were treatment related. In a concurrent study that was conducted to assess the toxicity of dicyclopentadiene, which used mink from the same lot, the mortality in the untreated female mink was 4 of 24, with 2 mink dying between the time of mating and lactation. It should also be noted that mink... 

Neurodevelopmental endpoints were assessed in the offspring of rats exposed to lead acetate at 448 mg lead/kg/day in the drinking water prior to mating and throughout gestation (Rabe et al. 1985). The pups were transferred to unexposed foster dams on the second day after birth. Mean PbB levels were... 

Robson, T.E., Goldizen, A.W. and Green, D.J. (2005) The multiple signals assessed by female satin bowerbirds could they be used to narrow down females choices of mates Biol. Lett. 1, 264-267. 

Questions clearly remain about which olfactory system is more important in mate recognition and in sexual behavior in mice. To address these issues, we conducted a series of experiments to systematically assess the role of either olfactory system in mate recognition and sexual behavior. Our main results are summarized here. 

We also have evidence of how the female assesses the size of her mating partners. She appears to do so indirectly, by gauging the size of their spermatophore, for which purpose she may use stretch receptors that female moths are known to have in the chamber (bursa) in which spermatophores are deposited (29). Male Utetheisa can be caused to produce inordinately small spermatophores if they are mated relatively recently beforehand. If such mated males are placed in competition with physically smaller males, whose spermatophores may now be the relatively larger ones, they tend to "lose out" (30). We predict from this that males, in nature, may space their matings days apart. To regain the capacity to produce full size spermatophores takes a male about a week (30). 

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