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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2018 Vol.37 No.2

Continental Island Effect in Sichuan Basin, Based on Morphological Variation of Passer montanus
Author of the article:ZHAO Wenhai1,2, LIU Fangqing2*, WEN Longying2*
Author's Workplace:1. College of Animal Science, Xinjiang Agricultural University, Urumqi 830001, China;
2. Key Laboratory of Sichuan Institute for Protecting Endangered Birds in the Southwest Mountains, College of Life Sciences, Leshan Normal University, Leshan, Sichuan Province 614000, China
Key Words:Passer montanus; Sichuan Basin; altitude difference; morphological variation; continental island effect; Bergman's rule
Abstract:We collected 7 morphological characteristics of 558 tree sparrow (Passer montanus) samples in Sichuan Basin and surrounding areas. By using partial correlation analysis, the results showed that: the body mass, tail length, tarsus length had an extremely significant positive correlation with altitude by controlling latitude (P<0.01), and body length had a significant positive correlation with altitude (P<0.05); the body mass, wing length had an extremely significant positive correlation with latitude by controlling altitude factor (P<0.01). The samples were divided into 3 groups based on different altitudes: Sichuan Basin (mean: 484.25 m, range: 219-725 m), Central China Plain (mean: 250.70 m, range: 46-784 m) and surrounding mountarns outside Sichuan Basin (mean: 2 260.42 m, range: 807-4 472 m). One-Way ANOVA was performed in the 3 populations of tree sparrow. The results indicated that the body mass, wing length, tail length and tarsus length were extreme significantly different (P<0.01), while the body mass of surrourding mountains outside Sichuan Basin was significantly or extreme significantly greater than those of Sichuan Basin and Central China Plain (P<0.05 or P<0.01). The body size was getting bigger with altitude increasing, and this indicated that the morphology variation was closely correlated with altitude, and was consistent with Bergman's rule. However, no significant difference in body mass, body length, tail length, tarsus length, culmen length and rictus was observed between Sichuan Basin and Central China Plain (P>0.05). This result failed to show continental island effect of Sichuan Basin.
2018,37(2): 172-178 收稿日期:2017-10-13
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