PROXIMATE DEVELOPMENTAL CAUSES OF LIMB LENGTH VARIATION BETWEEN HYLA-CINEREA AND HYLA-GRATIOSA (ANURA, HYLIDAE)

被引:7
作者
BLOUIN, MS [1 ]
机构
[1] FLORIDA STATE UNIV,DEPT BIOL,TALLAHASSEE,FL 32306
关键词
D O I
10.1002/jmor.1052090306
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
Hyla cinerea and H. gratiosa are closely related treefrogs that differ at metamorphosis in the length of the hind limb relative to snout vent length. A developmental series of larvae of the two species raised under uniform laboratory conditions reveals that H. cinerea have proportionately longer legs at metamorphosis than H. gratiosa for the following reasons: 1) Hyla cinerea initiate limb growth at a smaller body size than H. gratiosa, 2) H. cinerea have a faster rate of limb growth, and 3) body growth rates in H. cinerea and H. gratiosa are nearly identical until just before metamorphosis.
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页码:305 / 310
页数:6
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