Fecundity, Longevity, and Parthenogenesis of the American Roach, Periplaneta americana L.

Griffiths, James T.; Tauber, Oscar E.

doi:10.1086/physzool.15.2.30151818

Cited by 47 publications

(18 citation statements)

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“…Our results are similar to other studies that have recorded the lifespan of adult cockroaches (Griffiths and Tauber, 1942;Pope, 1953;Willis and Lewis, 1957;. There are a number of factors that could influence the lifespan of cockroaches including temperature, diet, reproductive experience, and degree of isolation (Griffiths and Tauber, 1942;Pope, 1953;Willis and Lewis, 1957;.…”

Section: American and Death-head Cockroaches Have Similar Adult Lifessupporting

confidence: 91%

“…There are a number of factors that could influence the lifespan of cockroaches including temperature, diet, reproductive experience, and degree of isolation (Griffiths and Tauber, 1942;Pope, 1953;Willis and Lewis, 1957;. However, we have limited this variability by raising each of these cohorts under the same environmental conditions (temperature and diet).…”

Section: American and Death-head Cockroaches Have Similar Adult Lifesmentioning

confidence: 99%

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Effects of aging on behavior and leg kinematics during locomotion in two species of cockroach

Ridgel

Ritzmann

Schaefer

2003

Journal of Experimental Biology

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SUMMARY Aging is often associated with locomotor deficits. Behavior in aged Blaberus discoidalis cockroaches was analyzed during horizontal walking, climbing, righting and inclined walking. Adult animals showed a decrease in spontaneous locomotion with increasing age. Tarsal abnormalities,termed `tarsus catch', were often present in aged individuals. In `tarsus catch', the prothoracic leg catches on the mesothoracic leg during the swing phase. This deficit causes alterations of the gait, but animals are able to regain a tripod gait after the perturbation. The tibio-tarsal joint angle in individuals with `tarsus catch' was significantly less than in intact animals. Structural defects were consistently associated with `tarsus catch'. The tracheal tubes in the tarsus and around the tibio-tarsal joint were often discolored and the tarsal pads were hardened in aged cockroaches. All aged individuals were able to climb. However, prior to climbing, some animals with`tarsus catch' failed to show postural changes that are normally seen in young animals. Aged individuals can right as rapidly as 1-week-old adults. However,animals with `tarsus catch' take longer to right than aged intact individuals. Old cockroaches have difficulty climbing an incline of 45°, and leg slipping is extensive. Slipping may be caused by tarsal degeneration, but animals that are unsuccessful in inclined walking often show uncoordinated gaits during the attempt. Escape behavior was examined in aged American cockroaches (Periplaneta americana). They do not show normal escape. However, after decapitation, escape movements return, suggesting that degeneration in head ganglia may actually interfere with escape. These findings provide evidence for age-related changes both in the periphery and in the central nervous system of cockroaches and stress the importance of multi-level approaches to the study of locomotion.

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Section: American and Death-head Cockroaches Have Similar Adult Lifessupporting

confidence: 91%

Section: American and Death-head Cockroaches Have Similar Adult Lifesmentioning

confidence: 99%

Effects of aging on behavior and leg kinematics during locomotion in two species of cockroach

Ridgel

Ritzmann

Schaefer

2003

Journal of Experimental Biology

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“…In other species of cockroaches, at least one of these factors, namely mating, is involved in reproduction. In Periplaneta americana, for instance, mating accelerates growth of the eggs and consequently more eggs are produced during the animal's lifetime if it is permitted to mate (Griffiths and Tauber, 1942;Roth and Willis, 1956). In this species, however, the influence of mating seems less pronounced than in Diploptera.…”

Section: Discussionmentioning

confidence: 99%

“…A variety of intrinsic and extrinsic factors, such as pregnancy, egg resorption, or involution of the corpus luteum (Liischer and Engelmann, 1955;Engelmann, 1957), food supply (Scharrer, 1946;Johansson, 1955Johansson, , 1958von Harnack, 1958), and probably humidity and temperature are involved in the control of the function of the corpora allata. Furthermore, in some cockroach species, mating accelerates the growth rate of the eggs and, therefore, increases the total number of eggs produced during the lifetime of the animal (Griffiths and Tauber, 1942;Roth and Willis, 1956;Wharton and Wharton, 1957).…”

mentioning

confidence: 99%

The Control of Reproduction in Diploptera Punctata (Blattaria)

Engelmann

1959

The Biological Bulletin

118

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“…Although the effects of mating may differ between species, in most cases mating activates the CA (Buhlmann, 1976;Lanzrein et al, 1980), optimizes the timing of ovulation (Engelmann, 1960;Roth and Stay, 1962;Goudey-Perri6re, 1987), accelerates oocyte growth (Roth and Stay, 1961;1962; Roth, 1970), and enhances female fecundity (Griffiths and Tauber, 1942.). Oocyte growth in virgins of Blaberus craniifer Burm.…”

Section: Introductionmentioning

confidence: 99%

Relationship between haemolymphatic levels of juvenile hormone and the duration of the spermatophore in the bursa copulatrix of the cockroach Blaberus craniifer Burm

Goudey‐Perriere¹,

Baehr²,

Brousse‐Gaury³

1989

Reprod. Nutr. Dévelop.

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Summary -In Blaberus craniifer females, fecundation is not required for oviposition. However, during the first gonadotrophic cycle, oviposition occurs about 1 wk earlier in mated females. As ovarian activity is essentially under the control of juvenile hormone (JH), haemolymphatic hormone levels were measured by radioimmunoassay in both virgin and mated females. In the latter, the duration of the spermatophore in the bursa copulatrix was manipulated.Matings were performed with single pairs : a 7-day-old virgin female was allowed to mate with a virgin male, and the spermatophore was extirpated from the bursa copulatrix just after completion of mating, or 24 h after pairing. The females were then isolated, and JH levels were measured from the 8th to the 12th post-imaginal day.The results show that the haemolymphatic level of JH (JH 111) remained low in virgin females for 12 d after the imaginal molt (< 16 ng/ml). The juvenile hormone titre following mating was higher when the spermatophore was left in the bursa for around 22 h after copulation, reaching a peak of 239 ng/ml. The longer the spermatophore remained in the bursa copulatrix, the sooner oviposition took place.The results show for the first time that there is a relationship between the duration of the spermatophore in the bursa copulatrix and haemolymphatic levels of juvenile hormone and basal oocyte growth during the first gonadotrophic cycle. The stimulating effect of the spermatophore from the bursa is discussed. Les données expérimentales établissent, pour la première fois, des corrélations positives entre la présence prolongée du spermatophore dans la bourse copulatrice, le taux d'hormone juvénile circulante et la croissance des ovocytes terminaux, au cours du premier cycle ovarien. Cet effet stimulateur du spermatophore, à partir de la bourse, est discuté.

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Fecundity, Longevity, and Parthenogenesis of the American Roach, Periplaneta americana L.

Cited by 47 publications

References 1 publication

Effects of aging on behavior and leg kinematics during locomotion in two species of cockroach

Effects of aging on behavior and leg kinematics during locomotion in two species of cockroach

The Control of Reproduction in Diploptera Punctata (Blattaria)

Relationship between haemolymphatic levels of juvenile hormone and the duration of the spermatophore in the bursa copulatrix of the cockroach Blaberus craniifer Burm

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