caa a22 4500 465782388 CHVBK 20180323111958.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF00183312 doi (NATIONALLICENCE)springer-10.1007/BF00183312 Simmons L. Department of Environmental and Evolutionary Biology, University of Liverpool, P.O. Box 147, L69 3BX, Liverpool, UK aut Nuptial feeding in tettigoniids male costs and the rates of fecundity increase [Elektronische Daten] [L. Simmons] Summary: A recent debate has centred on the importance of paternal investment for the origin and maintenance of nuptial feeding in insects. Some authors have argued that the rates of nutrient incorporation are likely to be too slow to allow a male to fertilize the eggs that he helps to produce and cannot be considered as paternal investment. Here I report the results of some experiments that show that the positive effects of nutrient donation on female reproduction for one species of spermatophylax producing tettigoniid can be realized within 24 to 48 h. Furthermore, mating was found to induce a refractory period in the female that was longer than the time taken for the incorporation of nutrients and oviposition. Thus, the nurturant male is likely to fertilize the eggs even if last-male sperm precedence is high. The cost of spermatophylax production was manifest as a 5-day recovery period between matings. Thus males and their donations are likely to be limited resources for females resulting in a reversal of the typical sex roles. Springer-Verlag, 1990 Behavioral Ecology and Sociobiology Springer-Verlag 27/1(1990-07-01), 43-47 0340-5443 27:1<43 1990 27 265 https://doi.org/10.1007/BF00183312 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00183312 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Simmons L. Department of Environmental and Evolutionary Biology, University of Liverpool, P.O. Box 147, L69 3BX, Liverpool, UK aut NATIONALLICENCE 773 0- Behavioral Ecology and Sociobiology Springer-Verlag 27/1(1990-07-01), 43-47 0340-5443 27:1<43 1990 27 265 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer