Ecological Research

, Volume 5, Issue 3, pp 341–351 | Cite as

Decreased reproductive rate of the spider,Nephila clavata, inhabiting small woodlands in urban areas

  • Tadashi Miyashita


The reproductive characteristics and feeding conditions of the spider,Nephila clavata, were examined at some urban and non-urban woodland sites. More than 80% of females were gravid by late October in both non-urban and large urban woodlands, whereas only 10%–30% were gravid in small urban woodlands. The expected number of eggs per female in mid-October was also lower in the small urban woodlands, although body length was not reduced. This suggests that reproductive failure was not caused by food shortage during the nymphal stage. Relative food consumption rate, prey size, biomass and size of potential prey during the adult stage all tended to be lower in small urban woodlands. These results suggest that decreased reproduction ofN. clavata in small urban woodlands is caused by food shortage during the adult stage, particularly a shortage of large insects.

Key words

Feeding condition Reproductive rate Spider Urban habitat 


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  1. Anderson, J. F. (1974) Responses to starvation in the spider.Lycosa lenta (Hentz) andFilistata hibernalisis (Hentz). Ecology55: 576–585.Google Scholar
  2. Austin, A. D. &Anderson, D. T. (1978) Reproduction and development of the spiderNephila edulis (Koch) (Araneidae: Araneae). Aust. J. Zool.26: 501–518.CrossRefGoogle Scholar
  3. Brown, S. G., Hill, E. B., Goist, K. E., Wenzl, P. A. &Christenson, T. E. (1985) Ecological and seasonal variations in a free-moving population of the golden-web spider,Nephila clavipes. Bull. Br. Arachnol. Soc.6: 313–319.Google Scholar
  4. Eisenberg, R. M., Hurd, L. E. &Bartley, J. A. (1981) Ecological consequences of food limitation for adult mantids (Tenodera aridifolia sinensis Saussure). Am. Midl. Nat.106: 209–218.Google Scholar
  5. Gillespie, R. G. &Caraco, T. (1987) Risk-sensitive foraging strategies of two spider populations. Ecology68: 887–899.Google Scholar
  6. Kessler, A. (1973) A comparative study of the production of eggs in eightPardosa species in the field (Araneae, Lycosidae). Tijdschrift voor Entomologie116: 23–41.Google Scholar
  7. Matsura, T. &Morooka, K. (1983) Influences of prey density on fecundity in a mantis,Paratenodera angustipennis (S.). Oecologia56: 306–312.CrossRefGoogle Scholar
  8. Miyashita, K. (1968) Growth and development ofLycosa T-insignita Boes et Str. (Araneae: Lycosidae) under different feeding conditions. Appl. Ent. Zool.3: 81–88.Google Scholar
  9. Miyashita, T. (1986) Growth, egg production, and population density of the spider,Nephila clavata in relation to food conditions in the field. Res. Popul. Ecol.28: 135–149.Google Scholar
  10. Moore, C. W. (1977) The life cycle, habitat and variation in selected web parameters in the spiderNephila clavipes Koch (Araneidae). Am. Midl. Nat.98: 95–108.Google Scholar
  11. Morse, D. H. &Fritz, R. S. (1982) Experimental and observational studies of patch choice at different scales by the crab spider,Misumena vatia. Ecology63: 172–182.Google Scholar
  12. Riechert, S. E. &Tracy, C. R. (1975) Thermal balance and prey availability: bases for a model relating web-site characteristics to spider reproductive success. Ecology56: 265–284.Google Scholar
  13. Robinson, M. H. &Robinson, B. (1973) Ecology and behavior of the giant wood spiderNephila maculata (Fabricuis) in New Guinea. Smithon. Contrib. Zool.149: 1–76.Google Scholar
  14. Spiller, D. A. &Schoener, T. W. (1988) An experimental study of the effect of lizards on web-spider communities. Ecol. Monogr.58: 57–77.Google Scholar
  15. Wise, D. H. (1975) Food limitation of the spiderLinyphia marginata; experimental field studies. Ecology56: 637–646.Google Scholar
  16. Wise, D. H. (1979) Effects of an experimental increase in prey abundance upon the reproductive rates of two orb-weaving spider species. Oecologia41: 289–300.CrossRefGoogle Scholar

Copyright information

© the Ecological Society of Japan 1990

Authors and Affiliations

  • Tadashi Miyashita
    • 1
  1. 1.Laboratory of Forest Zoology, Faculty of AgricultureUniversity of TokyoTokyoJapan

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