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Species-Specific Relationships between Water Transparency and Male Coloration within and between Two Closely Related Lake Victoria Cichlid Species
المؤلفون المشاركون
Selz, Oliver M.
Castillo Cajas, Ruth F.
Ripmeester, Erwin A. P.
Seehausen, Ole
Maan, Martine E.
المصدر
International Journal of Evolutionary Biology
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-07-19
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Environmental variation in signalling conditions affects animal communication traits, with possible consequences for sexual selection and reproductive isolation.
Using spectrophotometry, we studied how male coloration within and between populations of two closely related Lake Victoria cichlid species (Pundamilia pundamilia and P.
nyererei) covaries with water transparency.
Focusing on coloration patches implicated in sexual selection, we predicted that in clear waters, with broad-spectrum light, (1) colours should become more saturated and (2) shift in hue away from the dominant ambient wavelengths, compared to more turbid waters.
We found support for these predictions for the red and yellow coloration of P.
nyererei but not the blue coloration of P.
pundamilia.
This may be explained by the species difference in depth distribution, which generates a steeper gradient in visual conditions for P.
nyererei compared to P.
pundamilia.
Alternatively, the importance of male coloration in intraspecific sexual selection may differ between the species.
We also found that anal fin spots, that is, the orange spots on male haplochromine anal fins that presumably mimic eggs, covaried with water transparency in a similar way for both species.
This is in contrast to the other body regions studied and suggests that, while indeed functioning as signals, these spots may not play a role in species differentiation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Castillo Cajas, Ruth F.& Selz, Oliver M.& Ripmeester, Erwin A. P.& Seehausen, Ole& Maan, Martine E.. 2012. Species-Specific Relationships between Water Transparency and Male Coloration within and between Two Closely Related Lake Victoria Cichlid Species. International Journal of Evolutionary Biology،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-450728
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Castillo Cajas, Ruth F.…[et al.]. Species-Specific Relationships between Water Transparency and Male Coloration within and between Two Closely Related Lake Victoria Cichlid Species. International Journal of Evolutionary Biology No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-450728
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Castillo Cajas, Ruth F.& Selz, Oliver M.& Ripmeester, Erwin A. P.& Seehausen, Ole& Maan, Martine E.. Species-Specific Relationships between Water Transparency and Male Coloration within and between Two Closely Related Lake Victoria Cichlid Species. International Journal of Evolutionary Biology. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-450728
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-450728
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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