Discontinuous carbon dioxide release in the Eastern lubber grasshopper Romalea guttata and its effect on respiratory transpiration
Discontinuous carbon dioxide release in the Eastern lubber grasshopper Romalea guttata and its effect on respiratory transpiration
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东方蚱蜢Romalea guttata的不连续二氧化碳释放及其对呼吸蒸腾的影响
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
M. Quinlan
中科院分区：
文献类型：
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作者：
N. F. Hadley;M. Quinlan
通气模式进行了研究，在东部lubber蝗虫Romalea guttata和呼吸蒸腾。不连续释放的CO2只观察到在静止的个人在他们的暗期。间歇期（气门关闭）交替发作的CO2排放和O2消耗（突发阶段），没有真正的“扑动”阶段观察。循环持续时间随着温度的升高而降低，在水合和脱水的个人。这一大型，缓慢的物种的代谢率低于较小和/或更活跃的蚱蜢。水分流失率下降的预期范围内的值为节肢动物中温环境。在15和30 sC之间，呼吸蒸腾仅占总水分损失的1.9- 3.9%，并且在循环的爆发阶段仅占水分损失的7%。这些数据表明，这种成虫循环释放CO2不会导致大量节水。
Ventilatory patterns were examined in the Eastern lubber grasshopper Romalea guttata and correlated with respiratory transpiration. Discontinuous release of CO2 was only observed in quiescent individuals during their scotophase. Interburst periods (spiracles closed) alternated with bouts of CO2 emission and O2 consumption (burst phase); no true ‘flutter’ phase was observed. Cycle duration decreased with increasing temperature in both hydrated and dehydrated individuals. Metabolic rates for this large, sluggish species are lower than those reported for smaller and/or more active grasshoppers. Water loss rates fell within an expected range of values for arthropods from mesic environments. Respiratory transpiration accounted for only 1.9-3.9 % of the total water loss between 15 and 30 sC and for only 7 % of the water loss during the burst phase of the cycle. These data indicate that the cyclic release of CO2 in this adult insect does not result in substantial savings of water.