شرایط اکولوژیک مثل دسترسی به غذای کافی و مناسب از عواملی است که می‌تواند روی رفتار جانوران تاثیرگذار باشد. حشرات مختلفی در زمان گرسنگی سعی می‌کنند تا رفتارهای آمیزشی طول مدت آمیزش را کاهش دهند. هدف این مطالعه، بررسی اثر بر عملکرد کفشدوزک Hippodamia variegata بود. آزمایش، نرها ماده‌های ۱۰ ۱۵ روزه باکره استفاده شد. هر تکرار، یک نر ماده ۳ ساعت (از ۱۲ الی ۱۵) برای کنار هم قرار داده شدند ‌زمان تاخیر...

Adult aphid predators disperse across the landscape seasonally in search of prey aggregations that are patchily distributed and temporally variable. However, flight is energetically costly consumes resources could be invested reproduction. Hippodamia convergens an important predator North American cereal crops other agricultural systems. Consumption floral can enhance adult survival during peri...

The suitability of two prey species, Aphis pomi De Geer (Hemiptera: Aphididae) and Brevicoryne brassicae (L.), for two generalist aphidophagous coccinellids, Adalia tetraspilota (Hope) (Coleoptera: Coccinellidae) and Hippodamia variegata (Goeze), at various abundance levels was investigated under laboratory conditions. While both A. pomi and B. brassicae were found to be suitable, the predators...

this paper is an attempt to fill all of previous literature of coccinellidae records and species distribution in different provinces of iran. distribution was extracted for each species from literatures. there are 6 subfamilies, 16 tribes, 32 genus and 117 species in iran. the largest subfamily, tribe and genus in iran were scymninae, scymnini and scymnus, respectively. the most distribution wa...