INTERACTIONS BETWEEN COYPU (MYOCASTOR COYPUS) AND BIRD NESTS IN THREE MEDITERRANEAN WETLANDS OF CENTRAL ITALY

被引:31
作者
Bertolino, Sandro [1 ,2 ]
Angelici, Christian [3 ,4 ]
Monaco, Ernesto [5 ]
Monaco, Andrea [6 ]
Capizzi, Dario [6 ]
机构
[1] DIVAPRA Dept Protect & Exploitat Agr Resources En, I-10095 Grugliasco, TO, Italy
[2] Wildlife Sci, I-10029 Villastellone, TO, Italy
[3] Nazzano Tevere Farfa Nat Reserve, I-00060 Rome, Italy
[4] SROPU, I-00183 Rome, Italy
[5] Santa Marinella, Castello Santa Severa, Macchiatonda Nat Reserve, I-00058 Rome, Italy
[6] Reg Pk Agcy Latium, I-00166 Rome, Italy
来源
HYSTRIX-ITALIAN JOURNAL OF MAMMALOGY | 2011年 / 22卷 / 02期
关键词
Impact; invasive species; nest destruction; nutria; Myocastoridae; photo-camera survey; waterbirds; PREDATION RATES; HABITAT; ERADICATION; AGROSYSTEMS;
D O I
10.4404/Hystrix-22.2-4595
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
We evaluated the possible predation on eggs and the disturbance to waterbird nests by coypus by monitoring the breeding success of four bird species and a sample of dummy and natural nests by photo-cameras. The monitoring of waterbirds activity showed that 14.8% of Fulica atra and 9.5% of Gallinula chloropus nests failed, possibly as a consequence of disturbance by coypus. In 2009, 7.4% of ground dummy nests and 10.8% of water dummy nests showed signs of coypu activity with eggs either preyed or removed. Camera surveys confirmed that coypus used the nests as resting platforms, thus destroying or sinking the eggs. This study showed that in areas with high coypu density the disturbance to bird nests floating amid the vegetation or built in open water may be severe.
引用
收藏
页码:333 / 339
页数:7
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