USE OF LIPID RESERVES BY MONARCH BUTTERFLIES OVERWINTERING IN MEXICO: IMPLICATIONS FOR CONSERVATION
USE OF LIPID RESERVES BY MONARCH BUTTERFLIES OVERWINTERING IN MEXICO: IMPLICATIONS FOR CONSERVATION
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墨西哥帝王蝶利用脂质储备越冬:对保护的影响
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
L. Brower
中科院分区:
文献类型:
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作者:
A. Alonso;Eduardo Rendón;Eneida Montesinos;L. Brower
During their 5-mo overwintering period in Mexico, tens of millions of monarch butterflies (Danaus plexippus) form dense aggregations in forests dominated by oyamel fir trees (Abies religiosa). These forests provide a cool, moist environment that most monarchs use to maintain a state of reproductive diapause and to remain largely inactive until March, when they migrate back to the southern United States. In 1986, the Mexican government created the Monarch Butterfly Special Biosphere Reserve (MBSBR), but it is under pressure to allow forest extractions from core areas of the reserve. A recent argument to justify logging maintains that tree extraction would benefit monarchs by creating forest openings in which more plants would flower. The increased availability of nectar might mean that fewer monarchs would deplete their lipid contents, and therefore, more monarchs would survive the overwintering period. We investigated this hypothesis by comparing, throughout the overwintering period, lipid utilization and...