Assessment of the habitat quality of the threatened butterfly, Zizina emelina (Lepidoptera, Lycaenidae) in the agro-ecosystem of Japan and implications for conservation
Assessment of the habitat quality of the threatened butterfly, Zizina emelina (Lepidoptera, Lycaenidae) in the agro-ecosystem of Japan and implications for conservation
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日本农业生态系统中受威胁蝴蝶 Zizina emelina（鳞翅目、狼科）的栖息地质量评估及其对保护的影响
DOI：
10.18984/lepid.60.1_25
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Tachikawa
中科院分区：
文献类型：
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作者：
Takato Kobayashi;M. Kitahara;Yuta Suzuki;S. Tachikawa
在日本中部千叶县神户川市的农田里，我们对日本受威胁的蝴蝶Zizina Emelina的栖息地质量进行了评估。我们在三个地点建立了5条50米的脊状杂草修剪路线，这些脊状杂草只在spin.q修剪(此后，脊状修剪仅在spting中修剪)。春季以后每隔一年割一次田脊杂草(此后每月割一次田脊)和三脚草甸，计算每条路线上的成虫数量。在春季修剪的垄条和修剪整齐的垄条上，两条垄间4月上旬至下旬的成虫数量差异不显著。但在1月下旬至9月上旬期间，春耕成虫数量显著高于各月收割垄上的成虫数量，9月初至10月下旬，成虫在每隔一年的垄上有增加的趋势，春季在垄上割的成虫数量则呈下降趋势，因此，垄间成虫的数量没有明显的变化。在草地上，成虫发育期为8月下旬至10月下旬，成虫数量高峰在9月。毛竹属植物Lotusj‘oponicus的合成滴度较高，在春季才割和每隔一次割的垄条的下部，在一条未铺设的沼泽小路的两侧是一片宽阔的水田。在春季刈割的垄上，S的综合优势度从5~10月开始下降，而在刈割的垄上，从5~8月呈下降趋势，8~9月呈上升趋势。这表明，在8月中旬至10月上旬的为害期间，稻纵卷叶蝉的综合优势对成虫数量的增加有很大的贡献。根据这些结果，我们认为，为了在农业生态系统中保持埃美丽娜的高密度和S的数量，在它们的栖息地建立一个春季和每月都修剪的脊状混交林是很重要的，因为我们在草甸生境中观察到了埃美斑潜蝇的卵和幼虫。本研究还认为，草甸生境对保护斑潜蝇也是重要的。
We assessed habitat qua]ity of Zizina emelina, a threatened butterfiy in Japan, in the farmlands of Kamogawa City, Chiba Prefeeture, in central Japan, We established fivc 50 m ccnsus routes at three gitcs, ridgcs whcrc weeds are mowed only in sprin.q (hereaftcr, ridgcs mowed oniy in spting). ridges vv'hcre weeds arc mawed every menth after spring (hereaftcr, ridgcs mowed every month) and meadow of Trijioti"m repens to count the adult Z. emetina aiong each route. On the ridges mowed only in sprh]g and the ridgcs mowed evcry menth, thcre werc no significunt diffcrences in the number of adult Z. emelina individuals during the period from early Apri] to late Jime between the two ridges. However, during the period from late Jllne to early Septemhcr, the number of adults on the tidges mvwed on!y in $pring was sig]ificantly highcr than that en the ridgcs mowed in every month, During the period from early September to late October, the number of adults tended to increase on tl]e ridges niowed every rnonth, and decrease on those mowed on]y in spring; as a result, no significant ditfercnces wcre detected in the number of adults betwccn the ridges. In a meadow of Tlr(tblium repens, the adult emcrgencc period was from late August to late October, and thc peak in the number of adu]ts was in latc September. The synthetic doTminance of LotusJ'oponicus, the laiva] hest plant of Z. emalina, was high at the Iower part of beth ridges mowed only in spring and those mowed every rnonth, and at both sides of a nonpaved fbetpath present arDund paddy fields. On the Tidges mowed on]y in spring, the synthetic dominance of L. J'aponicu,s' declined from May te October, while on the ridges mowed eyery menth, it declined from May to August, and went up from August Lo Septcmber. This suggcsts that the synthetic dominance of L. jc{poni(,us centributed much to the increasc in the nLumber of adults during the pcriod from mid August to early Octoher on the ridges mowed in eveTy rnonth. From these results, it is suggested thaL, in ordcr to retain a high dcnsity of Z. emelina and the predeminance of L. japonic"s in agroecosystems, it is important that a mixturc of both ridgcs [hat are mowed both in spring and cvery month is established in their habitats, Since we observed eggs and Iarvae of Z. emeiina on T. rqi?ens in thc meadow habitat et' this study, a meadow habitat is also thought to be important for conservatjon or Z, ernelina.
河岸和次生林在维持日本近危蝴蝶 Sasakia charonda（鳞翅目，蛱蝶科）种群中的作用。
DOI：
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发表时间：
2008
期刊：
Ecological Research 23
影响因子：
--
作者：
Kobayashi T;Nakashizuka T;Kitahara M;Kubo M;Ito S
通讯作者：
Ito S