Spider Populations in New Jersey Apple Orchards
Spider Populations in New Jersey Apple Orchards
复制标题
新泽西州苹果园的蜘蛛种群
DOI：
10.1093/jee/53.5.810
复制
发表时间：
1960
期刊：
影响因子：
--
通讯作者：
C. D. Dondale
中科院分区：
文献类型：
--
作者：
H. B. Specht;C. D. Dondale
1957年，新泽西三个未喷洒杀虫剂的苹果园的蜘蛛平均数量高于七个喷洒杀虫剂的苹果园。“狩猎”蜘蛛似乎比织网蜘蛛更容易受到喷雾剂的影响。喷施药剂的果园，蜘蛛在捕食性节肢动物（不包括螨类）中所占的比例低于未喷施药剂的果园。注意到人口密度的季节性趋势与在其他地方观察到的相似。7 - 10月，未喷洒药剂的果园，8种占总个体数的87%。这些物种仅占喷施果园个体数的60%，其差异主要是由于erigonid、gramonota inornata Emerton的相对丰度。研究中发现的34个物种都附有注释。
Mean numbers of spiders in three unsprayed New Jersey apple orchards were higher than in seven sprayed orchards during 1957. “Hunting” spiders appeared to be more strongly affected by sprays than web-builders. Spiders formed a lower proportion of total predatory arthropods (excluding mites) in sprayed orchards than in unsprayed. A seasonal trend was noted in population density similar to that observed elsewhere. Eight species comprised about 87% of the individuals from July to October in unsprayed orchards. These species made up only 60% of the individuals in sprayed orchards, the difference being mainly owing to the relative abundance of the erigonid, Grammonota inornata Emerton. The 34 species found in the study are listed with annotations.