Male Bicyclus anynana Butterflies Choose Females on the Basis of Their Ventral UV-Reflective Eyespot Centers
Male Bicyclus anynana Butterflies Choose Females on the Basis of Their Ventral UV-Reflective Eyespot Centers
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DOI：
10.1093/jisesa/iez014
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发表时间：
2019-02-26
影响因子：
2.2
通讯作者：
Monteiro, Antonia
中科院分区：
文献类型：
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作者：
Huq, Manizah;Bhardwaj, Shivam;Monteiro, Antonia
蝴蝶经常使用它们的背翅和腹翅的颜色模式来实现不同的信号功能。隐藏的背翅表面的颜色图案通常用于性信号，而暴露的腹侧图案通常用于抵御捕食者的攻击。然而，在休息时，前翅腹侧的一部分通常被后翅隐藏，这使得个体也可以使用翅膀表面的图案来发出性信号。在这里，我们测试这一假设在Bicyclus anynana（巴特勒，鳞翅目，蛱蝶科）蝴蝶的腹前翅模式的性二型性的程度，专注于眼点，从潮湿和干燥的季节形式，然后测试的作用较大的腹前翅眼点的旱季女性在男性择偶。我们还测试了男性在生殖方面的投资。我们发现，腹侧前翅紫外线反射眼点中心，除了背侧前翅眼点中心以前在这个物种中检查，发挥作用，在性信号作为男性优先交配与女性的腹侧眼点中心完整，而不是用黑色油漆堵塞。然而，这种男性偏好，并没有转化为一个可检测到的更高的生殖投资，通过一个单一的交配对adminented女性。这项研究提供了一个例子，腹前翅模式，往往隐藏在后翅，是如何使用在性交流，在这种情况下，由女性吸引男性。
Butterflies often use their dorsal and ventral wing color patterns for distinct signaling functions. Color patterns on hidden dorsal wing surfaces are often used in sexual signaling, while exposed ventral patterns are often used to ward off predator attacks. At rest, however, part of the ventral forewings are often hidden by the hindwings, allowing individuals to also use the patterns on this wing surface for sexual signaling. Here, we test this hypothesis in Bicyclus anynana (Butler, Lepidoptera, Nymphalidae) butterflies by first determining the degree of sexual dimorphism in ventral forewing patterns, focusing on the eyespots, from both wet and dry season forms, and then testing the role of the larger ventral forewing eyespots of dry season females in male mate choice. We also test male investment in reproduction. We show that ventral forewing UV-reflective eyespot centers, in addition to dorsal forewing eyespot centers previously examined in this species, play a role in sexual signaling as males preferentially mated with females with their ventral eyespot centers intact instead of blocked with black paint. This male preference, however, did not translate into a detectable higher reproductive investment via a single mating toward ornamented females. This study provides an example of how ventral forewing patterns, often hidden by hindwings, are used in sexual communication, in this case by females to attract males.