Growth and Development of Lycosa T-insignita BOES. et STR. (Araneae : Lycosidae) under Different Feeding Conditions

Miyashita, Kazuyoshi

doi:10.1303/aez.3.81

Cited by 81 publications

(41 citation statements)

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“…The inter-annual size difference is probably caused by higher growth ratios (size after moult/size before moult) in years of early snowmelt. An increased growth ratio has also previously been documented for lycosids in response to increased food availability (Miyashita 1968). Alternatively, the variation in body size could arise by completion of an additional moult in early years.…”

Section: Discussionmentioning

confidence: 77%

Climate change and sexual size dimorphism in an Arctic spider

et al. 2009

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Climate change is advancing the onset of the growing season and this is happening at a particularly fast rate in the High Arctic. However, in most species the relative fitness implications for males and females remain elusive. Here, we present data on 10 successive cohorts of the wolf spider Pardosa glacialis from Zackenberg in HighArctic, northeast Greenland. We found marked inter-annual variation in adult body size (carapace width) and this variation was greater in females than in males. Earlier snowmelt during both years of its biennial maturation resulted in larger adult body sizes and a skew towards positive sexual size dimorphism (females bigger than males). These results illustrate the pervasive influence of climate on key life-history traits and indicate that male and female responses to climate should be investigated separately whenever possible.

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Section: Discussionmentioning

confidence: 77%

Climate change and sexual size dimorphism in an Arctic spider

et al. 2009

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“…First, there may be a large variation in the developmental time from emergence to adult molt. Spiders mature and become larger adults in a shorter period when they are given more prey (Miyashita 1968;Sato 1985;Vollrath 1987) Therefore, well-fed spiders may mature more rapidly and lay eggs earlier, whereas poorly-fed spiders may mature more slowly and lay eggs later. Since adults of T. praedonia collected in fields were larger than those reared, most individuals may mature earlier in nature.…”

Section: Discussionmentioning

confidence: 99%

Life history of Tetragnatha praedonia (Araneae: Tetragnathidae)

Yoshida

2002

Acta Arachnologica

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-The life history of a tetragnathid species, Tetragnatha praedonia was studied by both periodical field collectings and rearing spiders in the laboratory. Newly hatched spiderlings emerged repeatedly between June and September. Five spiders (two males and three females) were reared to adulthood. The developmental time from emergence to the adult molt was 57-59 days for males and 47-51 days for females. The repeated emergence of newly hatched spiderlings and the short life span suggest that T. praedonia has a turnover rate of a few generations per year.

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“…The number of nymphal instars is constant regardless of food conditions in some spiders including an agelenid (TURNBULL, 1962(TURNBULL, , 1965 but varies primarily depending on food conditions in other spiders (MIYASHITA, 1968;ROBINSON and ROBINSON, 1978). .Agelena limbata seems to be the former type of spider.…”

Section: Discussionmentioning

confidence: 99%

Life History of the Funnel-web Spider Agelena limbata: Web Site, Growth, and Reproduction.

Tanno¹

1992

Acta Arachnologica

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Growth and Development of Lycosa T-insignita BOES. et STR. (Araneae : Lycosidae) under Different Feeding Conditions

Cited by 81 publications

References 1 publication

Climate change and sexual size dimorphism in an Arctic spider

Climate change and sexual size dimorphism in an Arctic spider

Life history of Tetragnatha praedonia (Araneae: Tetragnathidae)

Life History of the Funnel-web Spider Agelena limbata: Web Site, Growth, and Reproduction.

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