کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2840789 | 1165357 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cost of oviposition site selection in a water strider Aquarius paludum insularis: Egg mortality increases with oviposition depth
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش حشره شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cost of oviposition site selection in a water strider Aquarius paludum insularis: Egg mortality increases with oviposition depth Cost of oviposition site selection in a water strider Aquarius paludum insularis: Egg mortality increases with oviposition depth](/preview/png/2840789.png)
چکیده انگلیسی
Females generally avoid selecting sites for oviposition which have a high predation risk to increase offspring survival. Previous studies have focused on costs to ovipositing females. However, although offspring may also incur costs by being oviposited at low predation risk sites, no studies have focused on costs to offspring. Such costs to offspring were examined by using Aquarius paludum insularis, females of which avoid eggs parasitism by ovipositing at deep sites. Deep sites are safe from egg parasitism but may be unsuitable for hatching due to environmental factors. We examined the costs to offspring at deep sites by comparing the hatching rate, the duration to hatching and the proportion of drowned larvae between eggs that were set at three levels of water depth (0Â cm, 25Â cm and 50Â cm depth). While the hatching rate at 50Â cm was lower than that at 0Â cm, the rate at 25Â cm did not differ from that at 0Â cm. Duration to hatching and the proportion of drowned larvae did not differ between the three depths. It is suggested that the declining survival rate of A. paludum eggs was due to increased water pressure at greater depth. Such a cost may exist in other species and such an observation may aid in understanding oviposition site selection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Insect Physiology - Volume 56, Issue 6, June 2010, Pages 646-649
Journal: Journal of Insect Physiology - Volume 56, Issue 6, June 2010, Pages 646-649
نویسندگان
Hiroyuki Hirayama, Eiiti Kasuya,