Population structure and habitat use by the spider Latrodectus katipo along the Manawatu–Wanganui coastline

@article{Costall2009PopulationSA,
  title={Population structure and habitat use by the spider Latrodectus katipo along the Manawatu–Wanganui coastline},
  author={Jessica Anne Costall and Russell G. Death},
  journal={New Zealand Journal of Zoology},
  year={2009},
  volume={36},
  pages={407 - 415}
}
Abstract A survey of habitats likely to support the widow spider, Latrodectus katipo (Theridiidae), endemic to New Zealand, was carried out at seven locations along the Manawatu-Wanganui coastline. Altogether, 151 juvenile, 74 female and 14 male katipo were found, with considerable differences in population structure between sites. The lack of juveniles at some sites suggests there is low reproductive output, but continued monitoring will be needed to confirm this. Most individuals were found… 

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References

SHOWING 1-10 OF 16 REFERENCES

Evidence for the displacement of an endemic New Zealand spider, Latrodectus katipo powell by the South African species Steatoda capensis Hann (Araneae : Theridiidae)

TLDR
Differences in reproductive potential and seasonal reproduction are proposed as the mechanism underlying the displacement of L. katipo from its natural habitat by competition from S. capensis.

THE HABITAT AND DISTRIBUTION OF THE KATIPO SPIDER AT SOUTH BRIGHTON BEACH, CHRISTCHURCH, NEW ZEALAND

TLDR
An analysis of the contents of 32 webs indicated that a weevil, Cecyropa modesta, is probably the most important prey of the Katipo spider.

Species status and conservation issues of New Zealand’s endemic Latrodectus spider species (Araneae : Theridiidae)

TLDR
The species status of the Latrodectus spiders of New Zealand was assessed using molecular and morphological methods and with cross-breeding experiments and it is concluded that L. atritus is a junior synonym of L. katipo.

Use of artificial cover objects for detecting red katipo, Latrodectus katipo Powell (Araneae: Theridiidae)

TLDR
Although red katipo appear to have declined in number and distribution, the scarcity of detailed historical records and lack of a nationallyimplemented standard survey methodology mean that current rates of population declines and range reductions are difficult to determine.

Distance to Nearest Neighbor as a Measure of Spatial Relationships in Populations

but since logging operations and the burning and reburning that followed this logging, aspen and white birch have taken over the role as dominants. Thirty-two islands and 5 mainland areas were chosen

Web site characteristics, dispersal and species status of New Zealand's katipo spiders, Latrodectus katipo and L. atritus

of a thesis submitted in fulfilment of the requirements for the degree of Ph. D. Web site characterictics, dispersal and species status of New Zealand's katipo spiders, Latrodectus katipo and L.

A preliminary study of development in two Latrodectus species (Araneae: Theridiidae)

Young spiders of two New Zealand Latrodectus species were reared to maturity. Considerable variability in growth rate, instar length, relative size, colouration, and patterning was observed both

Foredunes and blowouts: initiation, geomorphology and dynamics