STUDIES ON THE SCORPIONT <i>NEBO HIEROCHONTICUS</i>

Rosin, R.; Shulov, A.

doi:10.1111/j.1469-7998.1963.tb01989.x

Cited by 31 publications

(12 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The average ratio of length increase at each ecdysis varied from 1.37 to 1.42 for three measurements. These progression factors are slightly higher than those reported in the literature (Rosin & Shulov, 1963;Matthiesen, 1969-70;Probst, 1972;Francke, 1977) for other species of scorpions : 1.04-1 -35 (mean = 1.28 f 0.04). The progression factor for the scorpion, P. mesaensis, is higher than that predicted by Przibram's rule (Przibram & Megugar, 1912).…”

mentioning

confidence: 50%

“…The difference between the number of embryos and the number of newborn may be attributed to many factors. Prenatal resorption of embryos (Rosin & Shulov, 1963;) may occur during the period of low food availability and high metabolism which occurs in early summer. We observed female resorption in the laboratory during an adult starvation experiment.…”

Section: Reproductionmentioning

confidence: 99%

“…If a post-reproductive moult were present, the existence of two instar stages would make these final progression factors relatively larger. There are no reports of post-reproductive moults in the literature (see references in Table X) although some authors were uncertain (Rosin & Shulov, 1963;Vachon, Roy & Condamin, 1970).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Characteristics and environmental determinants of natality, growth and maturity in a natural population of the desert scorpion, Paruroctonus mesaensis (Scorpionida: Vaejovidae)

Polis

Farley

1979

Journal of Zoology

View full text Add to dashboard Cite

The scorpion, Paruroctonus mesaensis (Vaejovidae) has seven instar stages and moults six times. There is no post‐reproductive moult. The average growth ratio between successive instars is 1–38. The average rate of weight increase is 000249/day. This rate fluctuates seasonally: it is highest in spring and lowest in winter and summer. Growth rate is a function of ambient burrow temperature and prey abundance. Body size is determinate. The growth rate of the pectines is significantly greater in males as compared with females. Analysis indicates that the pectines are a secondary sexual trait in males. Animals mature from 19 to 24 months of age. Matings were observed from May through October. Gestation lasts 10–14 months. First surface appearance of newborn (instar II) is synchronous throughout the population and occurred in early August for five consecutive years. Some females were observed to be gravid for at least three consecutive years. Gravid females carry an average of 48–8 embryos. However, on the average only 19–9 young/female survive to appear on the surface. Factors which may be responsible for this observed decrease include resorption of embryos; death at birth, eclosion or first moult; and maternal and sibling cannibalism. The influence of various environmental factors on reproduction were analyzed. The number of newborn appearing on the surface and the population biomass of newborn showed a high positive correlation with precipitation and vegetation cover.

show abstract

mentioning

confidence: 50%

Section: Reproductionmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics and environmental determinants of natality, growth and maturity in a natural population of the desert scorpion, Paruroctonus mesaensis (Scorpionida: Vaejovidae)

Polis

Farley

1979

Journal of Zoology

View full text Add to dashboard Cite

show abstract

“…Pflugfelder (1930) distinguished between three kinds of diverticulae: those containing embryos, the degenerated diverticulae, and the young diverticulae. Rosin and Shulov (1963) studying Nebo hierichonticus , recognized two sizes of small spherical diverticulae, developed diverticulae and degenerated diverticulae of two sizes (see Fig. 4.…”

Section: Structure and Function Of Ovariuterusmentioning

confidence: 98%

Reproductive System of Female Scorpion: A Partial Review

Warburg

2010

The Anatomical Record

View full text Add to dashboard Cite

The female scorpion ovariuterus was examined in 10 scorpion species belonging to five families: Buthidae, Vaejovidae, Scorpionidae, Urodacidae, and Diplocentridae. Two main patterns of development are known in scorpions: (1) The apoikogenic type with an ovariuterus containing yolkrich eggs housed in follicles. This type is found in many scorpion taxa (largely buthids). A peculiar case of apoikogenic ovariuterus is a ''beaded'' ovariuterus where most of the ova's embryogenesis takes place inside the ovariuterus rather than on pedicels situated on the external wall of the ovariuterus as in most buthids. This type is found in a few scorpion species. (2) The katoikogenic type with an ovariuterus where the embryo develops in a diverticulum composed of four parts: a stalk (pedicel), a thickened collar, a conical portion containing the ovum, and an appendix containing the oral feeding apparatus where the embryos' chelicerae grip a ''teat''-like structure, described in four families: Hemiscorpiidae, Scorpionidae, Urodacidae, and Diplocentridae. There are three kinds of diverticulae: small rudimentary finger-like diverticulae, embryonic (ED) large projections, and postpartum diverticulae (PPD) empty diverticulae, which are remnants after parturition. The subject is reviewed and its bearing on reproduction in scorpions are discussed. Anat Rec, 293:1738Rec, 293: -1754

show abstract

“…The shorter this period is the sooner a larva can climb onto its mother's back and the greater its chances of surviving. The larvae of katoikogenic, viviparous scorpions do not face the same risk as those of N. hierichonticus Rosin & Shulov (1963). However, the larvae are not immediately mobile.…”

Section: Duration Of An Individual's Birthmentioning

confidence: 92%

Pre- and post-parturial aspects of scorpion reproduction: a review

Warburg¹

2012

Eur. J. Entomol.

View full text Add to dashboard Cite

Abstract. Although scorpions are an ancient group their method of reproduction is rather complex and poorly studied. This review aims at clarifying some of the aspects of their reproduction that are important for understanding the reproductive ecology of other arthropods, including insects. The following aspects of scorpion reproduction are discussed and reviewed: mating, insemination, fertilization, gestation, parturition and birth. The onset of gestation and its duration are difficult to determine as both depend on the time of fertilization, for which there are no accurate estimates. There are only a few records of the time between birth and emergence of a larva from the maternal envelope in apoikogenic scorpions, which is important for a better understanding of ovoviviparity. All these questions are important as the answers will greatly enhance our understanding of the population ecology of scorpions in terms of the recruitment rates of cohorts and their chances of survival.

show abstract

STUDIES ON THE SCORPIONT NEBO HIEROCHONTICUS

Cited by 31 publications

References 15 publications

Characteristics and environmental determinants of natality, growth and maturity in a natural population of the desert scorpion, Paruroctonus mesaensis (Scorpionida: Vaejovidae)

Characteristics and environmental determinants of natality, growth and maturity in a natural population of the desert scorpion, Paruroctonus mesaensis (Scorpionida: Vaejovidae)

Reproductive System of Female Scorpion: A Partial Review

Pre- and post-parturial aspects of scorpion reproduction: a review

Contact Info

Product

Resources

About