QUANTITATIVE BIONOMICS OF CULEX-NIGRIPALPUS (DIPTERA, CULICIDAE) POPULATIONS IN FLORIDA .2. DISTRIBUTION, DISPERSAL AND SURVIVAL PATTERNS
QUANTITATIVE BIONOMICS OF CULEX-NIGRIPALPUS (DIPTERA, CULICIDAE) POPULATIONS IN FLORIDA .2. DISTRIBUTION, DISPERSAL AND SURVIVAL PATTERNS
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DOI：
10.1093/jmedent/17.1.40
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发表时间：
1980-01-01
影响因子：
2.1
通讯作者：
HANSEN, CW
中科院分区：
文献类型：
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作者：
NAYAR, JK;PROVOST, MW;HANSEN, CW
C.用放射性核素~（32）P标记黑须螨4龄幼虫，并将标记成虫放归田间，研究其分布、扩散和存活规律。释放成年人收集的比例较大的数量在橡树吊床[栎]比其他地区，这表明这是一个林地物种。从8月到8月，在佛罗里达的Tiger Hammock研究区释放了四窝幼崽，每窝都有不同的营养经历（羽化时、饥饿24小时后、喂食蔗糖24小时并喂食蔗糖和血液）1976年10月，在释放的25万只蚊子中，有4682只（1.87%）被重新捕获在橡木吊床中。从释放前饥饿24 h的一窝中重新捕获的成虫数量（0.8%）明显少于其他3窝（1.86-3.01%）。在重新捕获的蚊子中，82.4%是在释放点（老虎吊床研究区）周围0.4公里半径内捕获的，另外17.6%是在0.4至1.2公里半径内捕获的。释放后，有标记的成虫很快就主要转移到橡树吊床地区。在每次实验期间，它们在那里被回收长达12天。在释放的前2天后，4个实验中雌性的日存活率（p）在0.66-0.79之间变化，平均值为0.72。雄性的日存活率显著更高，4个实验的平均值为0.84。这些实验表明，大多数C。在佛罗里达中部正常的夏季气候条件下，任何一窝黑须螨在羽化后可能存活不到14天。
C. nigripalpus larvae were marked with radioactive P-32 during the 4th instar and marked adults were released in the field to study their distribution, dispersal and survival patterns. Released adults were collected in proportionately larger numbers in oak hammocks [Quercus] than in other areas, suggesting that this is a woodland species. Four broods, each with differing nutritional experiences (at emergence, after 24 h starvation, fed on sucrose for 24 h and fed on sucrose and blood) were released in the Tiger Hammock study area, Florida, from Aug.-Oct. 1976; 4682 (1.87%) of the 250,000 mosquitoes released were recaptured in oak hammocks. Substantially fewer (0.8%) adults were recaptured from a brood whose adults were starved for 24 h prior to release than from the other 3 broods (1.86-3.01%). Of the recaptured mosquitoes, 82.4% were taken within a 0.4-km radius around the release point (Tiger Hammock study area) and the other 17.6% within a radius of 0.4 to 1.2 km. After release, marked adults soon moved predominantly to oak hammock areas. They were recovered there up to 12 days during each experiment. After the first 2 days of release, the daily survival rate (p) for females varied from 0.66-0.79 in the 4 experiments, with an average of 0.72. The daily survival rate for males was substantially higher, with an average of 0.84 for the 4 experiments. These experiments suggest that the majority of C. nigripalpus from any 1 brood probably survive less than 14 days after emergence during normal summer weather conditions of central Florida.