Study on the ecological characteristics and spatial pattern of Chreonoma atritarsis larvae in Camellia oleifera
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摘要:
目的 油茶蓝翅天牛的发生危害与生态环境因子关系密切,掌握该天牛幼虫的生态学特性及其空间分布规律是估计虫口密度、害虫预测预报的基础,可为害虫生态控制提供理论依据。 方法 通过对江西主要油茶基地蓝翅天牛幼虫危害情况的系统调查,应用6种聚集度指标和2种回归模型研究了蓝翅天牛幼虫种群的空间格局,运用SPSS 统计软件分析了蓝翅天牛幼虫的发生与林分因子等生态环境的关系。 结果 油茶蓝翅天幼虫种群的空间分布格局是均匀分布,种群中生物个体之间是相互排斥的。林分郁闭度、林下植被覆盖度是影响油茶蓝翅天牛有虫株率的2个关键林分因子,林分郁闭度与有虫株率呈极显著负相关,而林下植被覆盖度与有虫株率呈极显著正相关;林下植被覆盖度、林分郁闭度、林内林缘、树高、树龄这5个因子是油茶蓝翅天牛风险评估的关键因子。同时,坡向、坡位对蓝翅天牛有虫株率也存在不同程度的影响。油茶蓝翅天牛幼虫在油茶树枝干上的分布具有较强的选择性,喜欢选择3~6 a枝龄、1.5~2.2 cm枝径、枝角小于60°、枝下高40~59 cm的枝条处蛀食为害。 结论 本研究结果丰富了油茶蓝翅天牛的空间分布研究内容,表明该天牛幼虫的均匀分布空间格局是由该虫的生物学、生态学与环境因素共同作用的结果,探明了影响该天牛幼虫发生危害的关键林分因子及其在枝干上的分布规律,对指导预测预报及生物防治具有实用价值。 Abstract:Objective The occurrence and damage of Chreonoma atritarsis are closely related to its ecological environment factors. The ecological characteristics and spatial distribution of C. atritarsis larvae are the basis for estimating the population density and pest prediction, which can provide theoretical basis for pest ecological control. Method Based on the systematic investigation on the damage of C. atritarsis larvae in the main Camellia oleifera bases in Jiangxi Province, the spatial pattern of C. atritarsis larvae was studied by using six aggregation indexes and two regression models. The relationship between the occurrence of C. atritarsis larvae and ecological factors was analyzed by using SPSS statistical software. Result The results showed that the spatial distribution pattern of the larva population was uniform, and the individuals in the population were mutually exclusive. Forest canopy density and understory vegetation coverage are the two key factors affecting the pest population rate of C. oleifera. The relationship between forest canopy density and pest population rate is extremely significant negative correlation, while understory vegetation coverage and pest population rate are extremely significant positive correlation. Understory vegetation coverage, forest canopy density, forest edge, tree height and tree age were the key factors for risk assessment of C. atritarsis. At the same time, slope aspect and slope position also had different effects on the percentage of infected plants. The distribution of C. atritarsis. larvae on the branches of C. oleifera was highly selective. They preferred to choose the branches with the age of 3-6 a, diameter of 1.5-2.2 cm, angle less than 60°, and height within 40-59 cm. Conclusion The results of this study enriched the research content of spatial distribution of C. atritarsis, and showed that the spatial pattern of uniform distribution of C. atritarsis larvae was the result of the joint action of biological, ecological and environmental factors. The key forest factors affecting the occurrence and damage of C. atritarsis larvae and their distribution on branches were explored, which had practical value for guiding prediction and biological control. -
Key words:
- Camellia oleifera /
- Chreonoma atritarsis /
- larva /
- ecology /
- spatial distribution /
- stand factor /
- ecological factor /
- branch
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表 1 蓝翅天牛幼虫空间分布型差别标准
Table 1. Difference standard of spatial distribution pattern of Chreonoma atritarsis larvae
项目 C K m* I m*/m CA 分布型 Distributional pattern m = V = 1 >8 = m = 0 = 1 = 0 随机分布 Random distribution m<V >1 0<K<8 >m >0 >1 >0 聚集分布 Aggregation distribution m>V <1 <0 <m <0 <1 <0 均匀分布 Uniform distribution 注:m:虫口密度 ;V:方差
Note: m: Population density、V: Varianc表 2 各样地油茶蓝翅天牛幼虫聚集度指标值
Table 2. Index values of larval aggregation degree of Chreonoma atritarsis in Camellia oleifera
样地
Plot调查株数
Plant number虫口密度
Population density/
(头·株−1)方差
Variance扩散系数
diffusion
coefficient负二项分布
Negative binomial
distribution平均拥挤度
Average
congestion丛生指标
Cluster
index聚块性指标
Agglomerate
indexCA指标
CA index分布型判断
Distributional
patternm V C K m* I m*/m CA 1 253 0.6367 0.099 0.155 −0.754 0.364 −0.273 0.572 −1.326 均匀分布 Uniformity 2 162 0.4250 0.048 0.113 −0.479 0.342 −0.083 0.804 −2.087 均匀分布 Uniformity 3 471 0.6911 0.189 0.273 −0.951 0.079 −0.612 0.115 −1.051 均匀分布 Uniformity 4 331 0.1367 0.002 0.015 −0.139 0.134 −0.002 0.983 −7.208 均匀分布 Uniformity 5 205 0.1920 0.004 0.021 −0.196 0.187 −0.005 0.974 −5.100 均匀分布 Uniformity 6 463 0.3867 0.015 0.039 −0.402 0.362 −0.024 0.937 −2.486 均匀分布 Uniformity Total 1885 0.4525 0.116 0.256 −0.608 0.241 −0.212 0.532 −1.643 均匀分布 Uniformity 表 3 各林分因子与油茶林有虫株率的逐步回归分析结果
Table 3. The results of stepwise regression analysis between stand factors and the percentage of infested plants
因子
Factors树龄
Tree age/a树高
Tree height/m冠幅
Crown width/m2坡向
Aspect坡位
Slope position林内林缘
Forest within
and edged密度
Density/
(株·hm−2)郁闭度
Canopy
density植被盖度
Vegetation
coverage/%x1 x2 x3 x4 x5 x6 x7 x8 x9 均值 Mean 9.609 2.187 5.368 0.511 0.634 0.778 1621.233 0.468 35.684 相关系数R Pearson Correlation 0.175 −0.111 0.149 −0.078 −0.022 −0.135 −0.256 −0.864 0.938 P值 Sig. 0.044 0.203 0.088 0.370 0.798 0.121 0.003 0.000 0.000 表 4 蓝翅天牛幼虫在油茶枝干上的选择分布
Table 4. Selection and distribution of Chreonoma atritarsis larvae on Camellia oleifera branches
枝龄
Branch
age/a幼虫数占比
Proportion of
larvae/%枝径
Branch
diameter/cm幼虫数占比
Proportion of
larvae/%枝高
Branch
height/cm幼虫数占比
Proportion of
larvae/%枝角
Branch
angle/℃幼虫数占比
Proportion of
larvae/%枝向
Branch
direction幼虫数占比
Proportion of
larvae/%1~2 0.75 c 0.7~1.0 0.75 d 0~19 3.76 c 0~9 15.04 ab 正北 Due north 18.05 a 3~4 30.83 a 1.1~1.4 11.28 b 20~39 14.29 ab 10~19 14.29 ab 垂直 Vertical 12.03 b 5~6 34.59 a 1.5~1.8 27.82 a 40~59 24.81 a 20~29 15.79 ab 正东 Due east 18.05 a 7~8 14.29 b 1.9~2.2 29.32 a 60~79 18.80 ab 30~39 21.05 a 东北 Northeast 3.76 c 9~10 8.27 bc 2.3~2.6 13.53 b 80~99 19.55 ab 40~49 11.28 b 东南 Southeast 7.52 bc 11~12 2.26 c 2.7~3.0 6.02 c 100~119 9.02 b 50~59 11.28 b 正南 Due south 11.28 b 13~14 6.02 bc 3.1~3.4 4.51 c 120~139 3.01 c 60~69 8.27 bc 正西 Due west 15.79 ab 15~16 2.26 c 3.5~3.8 5.26 c 140~159 3.76 c 70~79 2.26 d 西北 Northwest 6.77 bc 17~ 0.75 c 3.9~ 1.54 d 160~179 3.01 c 80~90 0.75 d 西南 Southwest 6.77 bc 注:同列不同小写字母表示差异显著(SNK法, P<0.05)。
Note: Different lowercase letters in the same column show significant difference(SNK, P<0.05). -
[1] 张孝羲. 昆虫生态及预测预报[M]. 北京: 农业出版社, 1985. [2] 孙儒泳. 动物生态学原理(第2版)[M]. 北京: 北京师范大学出版社, 1996. [3] 王邵军, 彭九生. 江西油茶蓝翅天牛生物学特征及其生态控制技术 [J]. 林业实用技术, 2011(6):41−43.WANG S J, PENG J S. Biological characteristics and ecological control techniques of Chreonoma atritarsis of Camellia oleifera in Jiangxi [J]. Practical Forestry Technology,, 2011(6): 41−43.(in Chinese) [4] 诸瑞龙, 金德胜, 徐凌浩. 油茶枝干害虫—红颈蓝翅天牛 [J]. 江西植保, 1982(3):28.ZHU R L, JIN D S, XU L H. Red necked blue winged longicorn, a pest on branches and stems of Camellia oleifera [J]. Jiangxi Plant Protection, 1982(3): 28.(in Chinese) [5] 王跃连. 密度、郁闭度与油茶蛀干害虫发生数量的关系 [J]. 中南林业调查规划, 1983(2):28−32.WANG Y L. The relationship between density, canopy density and the number of stem borers in Camellia oleifera [J]. Central South Forest Inventory and Planning, 1983(2): 28−32.(in Chinese) [6] 石兴昌, 吴运辉, 李振东, 等. 油茶黑跗眼天牛防治技术调查研究 [J]. 绿色科技, 2020(11):103−105.SHI X C, WU Y H, LI Z D, et al. Investigation and study on control techniques of Chreonoma atritarsis [J]. Journal of Green science and technology, 2020(11): 103−105.(in Chinese) [7] 张显政, 成小飞. 蓝翅眼天牛幼虫空间分布型及用双重抽样调查幼虫密度研究初报 [J]. 湖南林业科技, 1988(2):59−61.ZHANG X Z, CHENG X F. Study on spatial distribution pattern of Chreonoma atritarsis larvae and density of larvae by double sampling [J]. Hunan Forestry Science & Technology, 1988(2): 59−61.(in Chinese) [8] 关继东. 林业有害生物控制技术[M]. 北京: 中国林业出版社, 2007. [9] 唐艳龙. 栗山天牛的生态学特性及其生物防治技术研究[D]. 北京: 中国林业科学研究院, 2011.TANG Y L. Studies on the ecology of Massicus raddei (Coleoptera: Cerambycidae)and its biological control[D]. Beijing: Chinese Academy of Forestry Sciences, 2011. (in Chinese). [10] 佟友贵, 张开存, 杨欣, 等. 桉树枝瘿姬小蜂幼虫空间分布型研究 [J]. 中国科技信息, 2013(10):95, 105.TONG Y G, ZHANG K C, YANG X, et al. Study on spatial distribution pattern of Leptocybe invasa larvae [J]. China Science and Technology Information, 2013(10): 95, 105.(in Chinese) [11] 赵丹阳, 叶燕华, 方天松, 等. 油茶象甲幼虫发生及空间分布型研究 [J]. 广东农业科学, 2015, 42(12):78−81. doi: 10.3969/j.issn.1004-874X.2015.12.016ZHAO D Y, YE Y H, FANG T S, et al. Occurrence and spatial distribution patterns of Curculio chinensis larvae [J]. Guangdong Agricultural Sciences, 2015, 42(12): 78−81.(in Chinese) doi: 10.3969/j.issn.1004-874X.2015.12.016 [12] 王小强, 刘虹伶, 蒲德强, 等. 四川凉山烟区烟蚜种群空间分布型及抽样技术研究 [J]. 中国烟草科学, 2017, 38(6):34−40.WANG X Q, LIU H L, PU D Q, et al. Spatial distribution pattern and sampling technique of Myzus persicae in Liangshan tobacco regions of Sichuan Province [J]. Chinese Tobacco Science, 2017, 38(6): 34−40.(in Chinese) [13] 冯雪莹, 张毅波, 黄玉翠, 等. 雄安新区及其周边地区烟粉虱的种群动态及空间分布格局 [J]. 中国农业科技导报, 2019, 21(10):115−124.FENG X Y, ZHANG Y B, HUANG Y C, et al. Population dynamics and spatial distribution of Bemisia tabaci in Xiongan New Area and its surrounding areas [J]. Journal of Agricultural Science and Technology, 2019, 21(10): 115−124.(in Chinese) [14] 沈佐锐. 关于Taylor幂法则的统计学讨论 [J]. 生态学杂志, 1990, 9(6):64−67.SHEN Z R. A statistical discussion on taylor's power law [J]. Chinese Journal of Ecology, 1990, 9(6): 64−67.(in Chinese) [15] 过婉珍. 茶天牛发生的田间调查及防治 [J]. 福建茶叶, 2010, 32(1):15−16. doi: 10.3969/j.issn.1005-2291.2010.01.005GUO W Z. Field investigation and control of Aeolesthes induta [J]. Tea in Fujian, 2010, 32(1): 15−16.(in Chinese) doi: 10.3969/j.issn.1005-2291.2010.01.005 [16] 王晓红. 锈色粒肩天牛生物学、生态学特性与生物防治技术研究[D]. 北京: 中国林业科学研究院, 2011.WANG X H. Studies on biology, ecology and biocontrol techniques of Apriona swainsoni Hope (Coleoptera: Cerambycidae)[D]. Beijing: Chinese Academy of Forestry Sciences, 2011. (in Chinese). [17] 戚裕锋. 星天牛幼虫空间分布型及抽样技术 [J]. 福建林业科技, 2016, 43(4):97−99, 124.QI Y F. Spatial distribution pattern and sampling techniques of Anoplophora chinensis larvae [J]. Journal of Fujian Forestry Science and Technology, 2016, 43(4): 97−99, 124.(in Chinese) [18] 陈潜, 许志春, 张连生, 等. 褐梗天牛幼虫和成虫空间分布的地统计学研究 [J]. 生态学报, 2018, 38(3):975−983.CHEN Q, XU Z C, ZHANG L S, et al. Geostatistical analysis of the spatial distribution of Arhopalus rusticus larvae and adults [J]. Acta Ecologica Sinica, 2018, 38(3): 975−983.(in Chinese) [19] 唐艳龙, 温小遂, 杨清培, 等. 影响萧氏松茎象发生的关键小气候因子 [J]. 南京林业大学学报(自然科学版), 2009, 33(5):117−120.TANG Y L, WEN X S, YANG Q P, et al. Key microclimate factors related to the outbreak of Hylobitelus xiaoi Zhang [J]. Journal of Nanjing Forestry University (Natural Sciences), 2009, 33(5): 117−120.(in Chinese) [20] 唐艳龙, 杨清培, 温小遂, 等. 萧氏松茎象发生与湿地松林地枯落物及土壤物理性质的关系 [J]. 林业科学研究, 2010, 23(4):554−559.TANG Y L, YANG Q P, WEN X S, et al. The relationship between physical characteristics of litterfall and soil in slash pine plantation and the occurring of Hylobitelus xiaoi Zhang [J]. Forest Research, 2010, 23(4): 554−559.(in Chinese) [21] 曾家丽, 邓白罗, 石卓功. 油茶枝条状态对油茶蓝翅天牛产卵易感性的初步研究 [J]. 经济林研究, 1984, 2(1):73−79.ZENG J L, DENG B L, SHI Z G. A preliminary study on the oviposition susceptibility of Chreonoma atritarsis [J]. Economic forest research, 1984, 2(1): 73−79.(in Chinese) [22] 申巍. 修剪施肥对油茶生长结实特性影响研究[D]. 重庆: 西南大学, 2008.SHEN W. Studies on effects of pruning and fertilization on Camellia oleifera growth and fruiting bearing characteristics[D]. Chongqing: Southwest University, 2008. (in Chinese).