کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2416348 1552232 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unravelling reward value: the effect of host value on memory retention in Nasonia parasitic wasps
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Unravelling reward value: the effect of host value on memory retention in Nasonia parasitic wasps
چکیده انگلیسی


• Memory retention depends on reward value in many animal species.
• A suitable host is the reward during conditioning for Nasonia parasitic wasps.
• We used three host species of different value in terms of offspring size and number.
• However, host value did not affect memory retention in Nasonia wasps.
• This result is in contrast to observations in other parasitic wasp species.

Learning can be instrumental in acquiring new skills or optimizing behaviour, but it is also costly in terms of energy and when maladaptive associations are formed: the balance between costs and benefits affects memory dynamics. Numerous studies have demonstrated that memory dynamics of animal species depend on the value of the reward during conditioning, even when animals are inexperienced with this reward. How an animal perceives reward value depends on a number of aspects, including the quantity or quality of the reward in terms of energy or fitness for the animal, the internal state of the animal and previous experience. The reliability of the learned association is another aspect, which can be assessed through the frequency of experiences, or through perception of inherent properties of the reward. The reward in oviposition learning of parasitic wasps is a host to parasitize. Different host species can differ in their reward value. This study focused on a specific aspect of reward value, namely host value, i.e. the number and size of emerging offspring, and tested the effect on oviposition learning in parasitic wasps of the genus Nasonia. We conditioned parasitic wasps of the species Nasonia vitripennis and Nasonia giraulti using three different host species as a reward, which differed greatly in their value as a host. However, for both parasitic wasp species, the resulting memory formation was independent of the value of the host. We discuss factors that may be responsible for this observation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Behaviour - Volume 96, October 2014, Pages 1–7
نویسندگان
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