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Showing 1 to 16 of 16 for “"aestivation"”.
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Development of female sex organs during aestivation in the alfalfa weevil, Hypera postica (Gyll.) (Coleoptera, Curculionidae)
… female sex organs of the alfalfa weevil during aestivation, to study the role of this aestivation on sexual development, and to investigate the factors responsible for this interaction. Measurements of female sex organs were made in dissected weevils at monthly intervals to observe each of the …
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The reproductive seasonality and flight capability of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) and its pattern of larval establishment in Canterbury lucerne
… in December-January each year. Flight to aestivation sites remote from the host crop, was preceded by a vigorous feeding phase during which time the indirect flight muscles developed. The existence of aestivatory diapause was further supported by an observed suppression of reproductive …
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Alternative life history strategies in the West African reed frog, Hyperolius nitidulus
… two alternative life-cycle strategies favouring aestivation or immediate reproduction. The hypothesis for the life-cycles of Hyperolius nitidulus that differed from the commonly assumed reproductive strategy for this species was confirmed by the results of this study. Aestivated juveniles start …
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Conservation and recovery of the Yellow Mud Turtle (Kinosternon flavescens) in Mason and Tazewell counties, Illinois
… very little terrestrial habitat suitable for aestivation, nesting and overwintering. Because K. flavescens is a philopatric species it is important to focus initial habitat conservation on areas known to be used by K. flavescens. Based on radio-telemetry observations of 25 K. flavescens, 40 …
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Taxonomy, faunistics and life-history traits of Dytiscidae and Noteridae (Coleoptera) in a West African savannah
… of temporary and permanent water bodies for the aestivation of these aquatic beetles. The ecological studies focused on the question how the beetles cope with the temporary loss of their aquatic habitats during dry season. The climate in the study area is characterised by a pronounced dry season …
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Evaluating the suitability of Laricobius nigrinus Fender (Coleoptera: Derodontidae), a biological control agent for hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae)
… non-feeding stages and time of emergence from aestivation was examined. The most noteworthy finding, regarding rearing, is that aestivation can be extended by storing adults at high temperatures and long daylength throughout the summer and decreasing the temperature and daylength in the fall. …
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Release-Recovery in the Field and Reproductive Success in the Lab of Laricobius osakensis (Coleopera: Derodontidae) a Biological Control Agent for the Hemlock Woolly Adelgid, Adelges tsugae
… times such as reproduction and preparation for aestivation. No treatment helped increase beetle emergence.
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Fitness and Physiology of the Hemlock Woolly Adelgid, Adelges tsugae, in Relation to the Health of the Eastern Hemlock, Tsuga canadensis
… by measuring insect density, survival from aestivation, and peak fecundity. A. tsugae physiological health was determined similarly by measuring insect biomass, total carbon, carbohydrate, total nitrogen, and amino nitrogen. A. tsugae from moderately impacted trees exhibited significantly …
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The Distribution and Reproduction of the Plains Spadefoot Toad, "Scaphiopus Bombifrons", in Iowa
… be attained through much of spring and summer. Aestivation and hibernation appeared to consume more fat than did the production of gametes. Conclusions. "S. bombifrons" is a moderately abundant, possibly recent invader of the loess hills. It appears limited to loess habitats. The species …
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Biology of Laricobius nigrinus Fender (Coleoptera: Derodontidae) and its potential as a biological control agent of the hemlock woolly adelgid, Adelges tsugae Annand (Homoptera: Adelgidae) in the eastern United States
… HWA eggs at 12 and 18 °C, respectively. Post-aestivation activity period was 36.6 and 30.8 weeks for males and females at 13 °C, respectively. Mean lifetime fecundity was 100.8 eggs over a mean ovipositional period of 13.2 weeks. Laricobius nigrinus is host specific. In paired-choice and …
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Biology and Host-Range Testing of <i>Laricobius kangdingensis</i> sp. n. (Coleoptera: Derodontidae), a Newly Discovered Predator of Hemlock Woolly Adelgid, <i>Adelges tsugae</i> Annand (Homoptera: Adelgidae)
… 15ºC; however, these adults did not emerge from aestivation after pupation. <i>Laricobius kangdingensis</i> sp. n. appears to be host-specific. In paired-choice feeding tests, adults consumed significantly more HWA than two other adelgid species [eastern spruce gall adelgid, <i>Adelges …
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Metapopulation theory explains Black-stripe Minnow (Pisces: Galaxiidae, Galaxiella nigrostriata) distribution in seasonal wetlands in south-west Western Australia
… nigrostriata entered the sediment to aestivate. Aestivation was examined to determine whether any physical features may be lacking which could inhibit population persistence. Galaxiella nigrostriata specimens from each population had morphological measurements and counts taken prior to tissue …
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Populationsökologische Untersuchungen zur Spargelfliege (Platyparea poeciloptera) und Zwiebelfliege (Delia antiqua) unter besonderer Berücksichtigung des Einsatzes von Simulationsmodellen im Integrierten Pflanzenschutz
… bei hohen Temperaturen durch eine Sommerruhe (Aestivation) unterbrochen werden kann. Die Versuche weisen auf eine mögliche Kopplung von Sommer- und Winterdormanz hin.
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A Genomics Approach to Conservation, Systematics, and Phylogeography to Understand Two Lineages of Lamiales
… developmental character of quincuncial corolla aestivation (i.e., the arrangement of corolla lobes, with two pairs of lobes, one enclosed inside the other, and a fifth lobe intermediate between them). The tribe contains 13 genera, the two largest and most widespread of which are Barleria (ca. …
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Comparative hypoxia responses and oxygen sensing in galaxiid fishes
… kokopu) indicated an adaptation to emersion and aestivation, frequently observed in this species. HIF-1 alpha protein stabilisation at normoxic conditions indicated distinct differences between mammalian and piscine HIF-1 alpha pathway and hypoxia-inducible gene transcription. In conclusion, the …