桂林地区克氏原螯虾对泽蛙蝌蚪的捕食

doi:10.3724/SP.J.1003.2008.07223

摘要/Abstract

摘要：

克氏原螯虾(Procambarus clarkii)已入侵我国江苏、湖北、江西、安徽等多个省(市)。为研究克氏原螯虾对其生境中主要两栖动物泽蛙(Rana limnocharis)的影响, 我们于2006年5-6月对广西桂林地区自然生境中克氏原螯虾和泽蛙蝌蚪的数量和密度进行了调查, 7月在室内进行了克氏原螯虾对泽蛙蝌蚪和饰纹姬蛙(Microhyla ornata)蝌蚪的捕食实验。野外调查结果表明克氏原螯虾的密度与泽蛙蝌蚪的密度呈显著负相关。室内实验结果表明克氏原螯虾对泽蛙蝌蚪的捕食强度与克氏原螯虾体长呈显著正相关, 且对泽蛙蝌蚪的捕食强度高于饰纹姬蛙蝌蚪。表明克氏原螯虾对两栖类幼体有比较严重的危害, 应加强监测, 采取相应措施预防和控制其危害。

关键词: Procambarus clarkii, Rana limnocharis, Microhyla ornata, 捕食, 外来物种

Abstract

Procambarus clarkiihas invaded many provinces in China, such as Jiangsu, Hubei, and Anhui. In order to evaluate its effect onRana limnocharis, we investigated the population density of P. clarkii and R.limnocharis in their natural habitat in Guilin between May and June in 2006. As a comparison, we also carried out indoor experiments to study P. clarkii predation on the tadpole of R. limnocharis and Microhyla ornata. The field investigation showed that there was a significantly negative correlation between the density of P. clarkii and that of R. limnocharis tadpoles, while indoor experiments showed that the number of R. limnocharis tadpoles preyed by Procambarus clarkii was positively correlated with P. clarkii’s body length, and moreR. limnocharis tadpoles were preyed than M. ornata tadpoles. Our results suggest that P. clarkii is likely to endanger amphibian larva, therefore, it should be monitored and controlled.

Key words: Procambarus clarkii, Rana limnocharis, Microhyla ornata, predation, alien species

武正军, 蔡凤金, 贾运锋, 鲁建鑫, 蒋勇福, 黄乘明 (2008) 桂林地区克氏原螯虾对泽蛙蝌蚪的捕食. 生物多样性, 16, 150-155. DOI: 10.3724/SP.J.1003.2008.07223.

Zhengjun Wu, Fengjin Cai, Yunfeng Jia, Jianxin Lu, Yongfu Jiang, Chengming Huang (2008) Predation impact ofProcambarus clarkii on Rana limnocharis tadpoles in Guilin area. Biodiversity Science, 16, 150-155. DOI: 10.3724/SP.J.1003.2008.07223.

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链接本文: https://www.biodiversity-science.net/CN/10.3724/SP.J.1003.2008.07223

https://www.biodiversity-science.net/CN/Y2008/V16/I2/150

图/表 4

参考文献 29

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样方编号 Plot	面积 Area (m²)	克氏原螯虾数 Number of Procambarus clarkii	克氏原螯虾密度 Density of Procambarus clarkii (ind./ m²)	泽蛙蝌蚪数 Number of Rana limnocharis tadpole	泽蛙蝌蚪密度 Density of Rana limnocharis tadpole (ind./m²)
1	4.40	0	0	40	9.09
2	4.25	7	1.65	2	0.47
3	5.75	10	1.74	0	0
4	11.00	3	0.27	1	0.09
5	13.50	3	0.22	14	1.04
6	7.75	0	0	19	2.45
7	9.60	1	0.10	8	0.83
8	7.00	2	0.29	5	0.71
9	8.00	0	0	11	1.38
10	6.00	1	0.17	20	3.33
11	4.50	6	1.33	0	0
12	3.20	2	0.63	3	0.94
13	16.00	1	0.06	7	0.44
14	27.56	8	0.29	13	0.47
15	5.40	1	0.19	6	1.11
16	6.25	0	0	11	1.76
17	7.00	0	0	14	2.00
18	12.15	2	0.16	25	2.06
19	5.94	3	0.51	0	0
20	3.84	4	1.04	7	1.83
21	4.00	3	0.75	8	2.00
22	39.00	32	0.82	9	0.23
23	8.32	1	0.12	11	1.32
24	5.98	1	0.17	32	5.35
25	14.00	3	0.21	20	1.43
26	12.00	3	0.25	8	0.67
27	10.08	4	0.40	2	0.20
合计Total	262.47	101	0.42±0.50*	296	1.53±1.92*

样方编号 Plot	面积 Area (m²)	克氏原螯虾数 Number of Procambarus clarkii	克氏原螯虾密度 Density of Procambarus clarkii (ind./ m²)	泽蛙蝌蚪数 Number of Rana limnocharis tadpole	泽蛙蝌蚪密度 Density of Rana limnocharis tadpole (ind./m²)
1	4.40	0	0	40	9.09
2	4.25	7	1.65	2	0.47
3	5.75	10	1.74	0	0
4	11.00	3	0.27	1	0.09
5	13.50	3	0.22	14	1.04
6	7.75	0	0	19	2.45
7	9.60	1	0.10	8	0.83
8	7.00	2	0.29	5	0.71
9	8.00	0	0	11	1.38
10	6.00	1	0.17	20	3.33
11	4.50	6	1.33	0	0
12	3.20	2	0.63	3	0.94
13	16.00	1	0.06	7	0.44
14	27.56	8	0.29	13	0.47
15	5.40	1	0.19	6	1.11
16	6.25	0	0	11	1.76
17	7.00	0	0	14	2.00
18	12.15	2	0.16	25	2.06
19	5.94	3	0.51	0	0
20	3.84	4	1.04	7	1.83
21	4.00	3	0.75	8	2.00
22	39.00	32	0.82	9	0.23
23	8.32	1	0.12	11	1.32
24	5.98	1	0.17	32	5.35
25	14.00	3	0.21	20	1.43
26	12.00	3	0.25	8	0.67
27	10.08	4	0.40	2	0.20
合计Total	262.47	101	0.42±0.50*	296	1.53±1.92*

克氏原螯虾编号 No. ofProcambarus clarkii	克氏原螯虾体长 Length ofProcambarus clarkii (cm)	克氏原螯虾每天捕食的泽蛙蝌蚪数 Number of Rana limnocharis tadpole preyed by Procambarus clarkii per day (mean±SD)
1	3.6	1.33±0.58
2	4.4	1.33±1.15
3	4.7	1.67±0.58
4	5.4	3.00±1.00
5	6.1	3.33±0.58
6	6.5	4.67±1.53
7	6.9	9.00±2.00
8	7.7	5.00±2.00
9	8.2	6.00±1.00

克氏原螯虾编号 No. ofProcambarus clarkii	克氏原螯虾体长 Length ofProcambarus clarkii (cm)	克氏原螯虾每天捕食的泽蛙蝌蚪数 Number of Rana limnocharis tadpole preyed by Procambarus clarkii per day (mean±SD)
1	3.6	1.33±0.58
2	4.4	1.33±1.15
3	4.7	1.67±0.58
4	5.4	3.00±1.00
5	6.1	3.33±0.58
6	6.5	4.67±1.53
7	6.9	9.00±2.00
8	7.7	5.00±2.00
9	8.2	6.00±1.00

克氏原螯虾编号 No. ofProcambarus clarkii	克氏原螯虾体长 Length ofProcambarus clarkii (cm)	被捕食的泽蛙蝌蚪个体数 Tadpoles of Rana limnocharispreyed by Procambarus clarkii	被捕食的饰纹姬蛙蝌蚪个体数 Tadpoles of Microhyla ornata preyed by Procambarus clarkii
1	3.6	3	1
2	4.4	4	2
3	4.7	4	1
4	5.4	6	3
5	6.1	7	4
6	6.5	7	4
7	6.9	8	8
8	7.7	7	2
9	8.2	10	6