Summer Diapause

Shimizu, Masaki

doi:10.1146/annurev.en.25.010180.000245

Cited by 352 publications

(269 citation statements)

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“…Seasonal variation in insolation may even influence the timing of leaf flush in 'aseasonal' tropical forests (van Schaik et al 1993). In many insects, diapause initiation and-perhaps less commonly-termination are controlled by photoperiod, although the resumption of activity following diapause is likely to depend on other factors, such as temperature, as well (Mazaki 1980;Tauber et al 1986). …”

Section: (B) Photoperiodmentioning

confidence: 99%

Toward a synthetic understanding of the role of phenology in ecology and evolution

Forrest

Miller‐Rushing

2010

Phil. Trans. R. Soc. B

597

525

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Phenology affects nearly all aspects of ecology and evolution. Virtually all biological phenomenafrom individual physiology to interspecific relationships to global nutrient fluxes-have annual cycles and are influenced by the timing of abiotic events. Recent years have seen a surge of interest in this topic, as an increasing number of studies document phenological responses to climate change. Much recent research has addressed the genetic controls on phenology, modelling techniques and ecosystem-level and evolutionary consequences of phenological change. To date, however, these efforts have tended to proceed independently. Here, we bring together some of these disparate lines of inquiry to clarify vocabulary, facilitate comparisons among habitat types and promote the integration of ideas and methodologies across different disciplines and scales. We discuss the relationship between phenology and life history, the distinction between organismal-and population-level perspectives on phenology and the influence of phenology on evolutionary processes, communities and ecosystems. Future work should focus on linking ecological and physiological aspects of phenology, understanding the demographic effects of phenological change and explicitly accounting for seasonality and phenology in forecasts of ecological and evolutionary responses to climate change.

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Section: (B) Photoperiodmentioning

confidence: 99%

Toward a synthetic understanding of the role of phenology in ecology and evolution

Forrest

Miller‐Rushing

2010

Phil. Trans. R. Soc. B

597

525

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“…However, the moth Operophtera brumata is said to undergo obligatory diapause as an embryo and as pupa (Pickfort,1953). This phenomenon commonly occurs in insects (Masaki, 1980).…”

mentioning

confidence: 98%

“…Ecdysteroids and juvenile hormones as well as a diapause hormone are engaged in its control (Behrens, 1984). The endocrine control of summer diapause conforms to the basic system governing winter diapause, according to a few endocrinological studies (Masaki, 1980).…”

mentioning

confidence: 99%

The Relationships between Pupal Development and Ecdysteroid Levels in Summer Diapausing Silkworm, Bombyx mandarina.

Shen

Hamano

Fugo

1993

Proceedings of the Japan Academy. Ser. B: Physical and Biologic

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In the silkworm, Bombyx mandarins, duration of pupal-adult development was mainly divided into three different types among the Japanese population: the first one was 2 weeks duration, the second was about 3 weeks and in the third type more than 30 to 40 days were necessary for the adult development, although these were dependent on the rearing seasons. However, the average number of days required for adult development was 14 in the majority of the Chinese population. In the third type of pupal-adult development of Japanese population, the development of pupal stage was arrested. Oxygen consumption of the animals of which adult eclosion occurred at 34 days after pupation was very low during the pupal development. Ovarian development of these animals was also suppressed considerably. The fluctuation patterns of ecdysteroid titer in haemolymph of Japanese population were quite different from that of the Chinese population. Ecdysteroid titer was undetectable at 4 to 13 days after pupation in the Japanese population, but the titer increased by day-15 and reached a maximum level of 4.5 µg at day-20. The reinitiation of ovarian development was coincident to the increase of ecdysteroids in haemolymph of these animals. It was suggested that the delay of pupal-adult development may be due to the low levels of ecdysteroids in the Japanese population of Bombyx mandarina.

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“…Although temperatures would allow continuous reproduction, there is often a seasonal pattern in the abundance of tropical insects (WoLDA 1988), however, few examples of diapause in tropical insects have so far been demonstrated (MASAKI 1980, DENUNGER 1986). Within Ensifera, ANno (1991) presented evidence for an adult diapause in a subtropical strain of the conehead Euconocephalus pallidus (Redtenbacher 1891) and MASAKI & NAGASE (1992) observed delayed hatching in a small portion of the eggs of the cricket Dianemobius fascipes (Walker 1869) of tropical and subtropical origin, of which diapause strains could be selected in the laboratory.…”

mentioning

confidence: 99%

Evidence of an embryonic diapause in a tropical Phaneropterinae (Insecta Ensifera Tettigonioidea)

Ingrisch

1996

Tropical Zoology

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Eggs of Stictophaula armata lngrisch 1994 from Chiang Mai, Thailand ( 18°4 7'N, 98°55'E), were incubated at 25 °C in the laboratory. Under constantly humid conditions, favourable for development, about half of the eggs hatched within 60 days after oviposition (peak 20-36 days), the other half hatched between 120 and 350 days after oviposition, most!) between 180-260 days. In the late hatching eggs, embryonic development ceased temporarily at mesentrepses. Eggs laid by females that themselves had hatched from early or from late hatching eggs gave similar results. When newly laid eggs were incuhated at 60% RH, no hatching occurred, but if the eggs were first incubated for a period varying between 2 and 12 months at 60% RH and then allowed to absorb water, hatching occurred with a unimodal distribution between 23 and 72 days after moistening of the eggs (peak 24-40 days). Hatching success was not reduced by a desiccation period of up to 6 months. The results are interpreted as the occurrence of an egg diapause that is eliminated by the incidence of drought.

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Summer Diapause

Cited by 352 publications

References 0 publications

Toward a synthetic understanding of the role of phenology in ecology and evolution

Toward a synthetic understanding of the role of phenology in ecology and evolution

The Relationships between Pupal Development and Ecdysteroid Levels in Summer Diapausing Silkworm, Bombyx mandarina.

Evidence of an embryonic diapause in a tropical Phaneropterinae (Insecta Ensifera Tettigonioidea)

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