High blowfly parasitic loads affect breeding success in a Mediterranean population of blue tits
High blowfly parasitic loads affect breeding success in a Mediterranean population of blue tits
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DOI：
10.1007/s004420050339
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发表时间：
1997-12-01
期刊：
影响因子：
2.7
通讯作者：
Blondel, J
中科院分区：
文献类型：
--
作者：
HurtrezBousses, S;Perret, P;Blondel, J
体外寄生虫对鸟类繁殖成功的不利影响在影响雏鸡及其父母的体外寄生虫的案例中得到了特别充分的证明。由于原丽蝇属的苍蝇幼虫只攻击雏鸟，因此它们是测试雏鸟寄生后果的良好模型。科西嘉岛的蓝山雀种群遭受苍蝇侵扰的几率极高，怀疑会对幼鸟产生负面影响。比较实验去寄生虫（处理）和自然感染（对照）的雏鸟，我们发现原毛虫的攻击会导致贫血并对雏鸟造成严重干扰，因此，我们预计这些影响会对受感染雏鸟的身体状况和生存产生负面影响。对照组与治疗组比较。这表明在这个种群中，苍蝇降低了招募幼年蓝山雀的可能性。
The detrimental effects of ectoparasites on the breeding success of birds have been especially well demonstrated in the case of ectoparasites that affect both chicks and their parents. Since blowfly larvae of the genus Protocalliphora attack only nestling birds, they represent a good model for testing the consequences of parasitism on nestlings, A Corsican population of blue tit suffers extremely high rates of infestation by blow-flies, which are suspected to negatively affect young birds. Comparing experimentally deparasitized (treated) and naturally infested (control) broods, we showed that the attack by Protocalliphora causes anaemia and an important disturbance to the chicks, Therefore, we expected that these effects would have a negative impact on body condition and survival in the infested broods, Although we did not find any effect of treatment on fledging success, our predictions were confirmed by lower growth rate, body mass at fledging and tarsus length at fledging in the control compared with the treated group. This suggests that in this population, blowflies decrease the probability of recruitment of young blue tits.