The Effect of Temperature on Egg Development in the Australian Mayfly Genus Coloburiscoides (Ephemeroptera: Coloburiscidae) and its Relationship to Distribution and Life History

1991 ◽  
Vol 18 (2) ◽  
pp. 231 ◽  
Author(s):  
John E. Brittain ◽  
Ian C. Campbell
Keyword(s):  
Life History ◽  
Effect Of Temperature ◽  
Egg Development

Effect of Temperature on the Predator, (Reuter) (Hemiptera: Anthocordiae) Feeding on Cryptolestes pusillus (Schon.) (Coleoptera: Cucujidae)

1970 ◽  
Vol 15 ◽  
pp. 41-46 ◽  
Author(s):  
MM Rahman ◽  
W Islam ◽  
KN Ahmed
Keyword(s):  
Life History ◽  
Insect Pest ◽  
Developmental Time ◽  
Effect Of Temperature ◽  
Hatching Rate ◽  
Immature Stages ◽  
Egg Hatching ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Cryptolestes Pusillus

Xylocoris flavipes (Reuter) is one of the dominant predators of many stored product insect pest including Cryptolestes pusillus. The influence of temperature on predator development, survival and some selected life history parameters was determined. Eggs laid/female (27.27±2.52) and egg hatching rate (%) (88.25±2.19) were highest at 30°C and lowest at 20°C (5.43±1.19 and 30.79±4.63%) respectively but no eggs laid at 15°C. Mortality among immature stages (%) was highest (51.71±1.48) at 35°C and lowest (24.25c±1.14) at 25°C. Developmental times decreasing with the increasing of temperature. Maximum numbers of progeny/female/day (3.55±0.76) were produced at 25°C and minimum (0.83±0.04) were at 20°C.The sex ratios (% female) of X. flavipes were 47.04, 56.68, 51.66 and 50.07 for 20, 25, 30 and 35°C respectively. Survivorship of ovipositing females was highest at 25°C but lowest at 35°C respectively. Key words: Xylocoris flavipes, Cryptolestes pusillus, life history, temperature, developmental time   doi: 10.3329/jbs.v15i0.2201 J. bio-sci. 15: 41-46, 2007

scholarly journals Linking thermal adaptation and life-history theory explains latitudinal patterns of voltinism

2019 ◽  
Vol 374 (1778) ◽  
pp. 20180547 ◽  
Author(s):  
Jacinta D. Kong ◽  
Ary A. Hoffmann ◽  
Michael R. Kearney
Keyword(s):  
Life History ◽  
Thermal Sensitivity ◽  
Thermal Adaptation ◽  
Thermal Response ◽  
Life Cycles ◽  
Development Rate ◽  
Latitudinal Gradients ◽  
Seasonal Temperature ◽  
Egg Development ◽  
Latitudinal Patterns

Insect life cycles are adapted to a seasonal climate by expressing alternative voltinism phenotypes—the number of generations in a year. Variation in voltinism phenotypes along latitudinal gradients may be generated by developmental traits at critical life stages, such as eggs. Both voltinism and egg development are thermally determined traits, yet independently derived models of voltinism and thermal adaptation refer to the evolution of dormancy and thermal sensitivity of development rate, respectively, as independent influences on life history. To reconcile these models and test their respective predictions, we characterized patterns of voltinism and thermal response of egg development rate along a latitudinal temperature gradient using the matchstick grasshopper genus Warramaba . We found remarkably strong variation in voltinism patterns, as well as corresponding egg dormancy patterns and thermal responses of egg development. Our results show that the switch in voltinism along the latitudinal gradient was explained by the combined predictions of the evolution of voltinism and of thermal adaptation. We suggest that latitudinal patterns in thermal responses and corresponding life histories need to consider the evolution of thermal response curves within the context of seasonal temperature cycles rather than based solely on optimality and trade-offs in performance. This article is part of the theme issue ‘Physiological diversity, biodiversity patterns and global climate change: testing key hypotheses involving temperature and oxygen’.

scholarly journals Effect of temperature on life history traits of the invasive calanoid copepod Arctodiaptomus dorsalis (Marsh, 1907) from Lake Taal, Philippines

2016 ◽  
Vol 11 (4) ◽  
pp. 105-111 ◽  
Author(s):  
Dino T. Tordesillas ◽  
Nick Khryzzan P. Abaya ◽  
Moira Allyssa S. Dayo ◽  
Lou Erika B. Marquez ◽  
Rey Donne S. Papa ◽  
...  
Keyword(s):  
Life History ◽  
Life History Traits ◽  
Calanoid Copepod ◽  
Effect Of Temperature
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