Interactions among multiple selective pressures on the form–function relationship in insular stream fishes
Interactions among multiple selective pressures on the form–function relationship in insular stream fishes
复制标题
多重选择压力对岛流鱼类形态与功能关系的相互作用
DOI：
10.1093/biolinnean/blab098
复制
发表时间：
2021
影响因子：
1.9
通讯作者：
Blob, Richard W
中科院分区：
文献类型：
--
作者：
Diamond, Kelly M;Lagarde, Raphaël;Griner, J Gill;Ponton, Dominique;Powder, Kara E;Schoenfuss, Heiko L;Walker, Jeffrey A;Blob, Richard W
许多物种的体型和逃生能力之间的关系已经很好地建立起来。然而，生物体可能面临多重选择压力，这些压力可能会带来相互竞争的需求。许多鱼类使用快速启动来逃避捕食者的攻击，而一些种类的虎鱼已经进化出爬出捕食者密集栖息地的瀑布的能力。祖先的“爆发力”攀爬机制使用横向身体波动来沿着瀑布向上移动，而派生的“微动”机制使用直线运动。我们研究了快速启动性能是否受到攀登新功能需求的选择的影响。我们预测，非攀爬物种将显示形态和快速启动性能，促进捕食者逃避，因为这些鱼生活一贯与捕食者，不受限制的要求攀登。我们还预测，通过使用横向起伏，爆发力攀登者将表现出上级的逃生性能比英寸。我们比较了六种虾虎鱼的快速启动和体型。正如预测的那样，非攀爬鱼表现出独特的形态，更频繁地响应攻击刺激比攀爬物种。与我们的预测相反，我们发现不同攀岩风格的逃生表现没有差异。这些结果表明，竞争压力的选择不需要限制猎物逃避捕食者攻击的能力。
Relationships between body shape and escape performance are well established for many species. However, organisms can face multiple selection pressures that might impose competing demands. Many fishes use fast starts for escaping predator attacks, whereas some species of gobiid fishes have evolved the ability to climb waterfalls out of predator-dense habitats. The ancestral ‘powerburst’ climbing mechanism uses lateral body undulations to move up waterfalls, whereas a derived ‘inching’ mechanism uses rectilinear locomotion. We examined whether fast-start performance is impacted by selection imposed from the new functional demands of climbing. We predicted that non-climbing species would show morphology and fast-start performance that facilitate predator evasion, because these fish live consistently with predators and are not constrained by the demands of climbing. We also predicted that, by using lateral undulations, powerburst climbers would show escape performance superior to that of inchers. We compared fast starts and body shape across six goby species. As predicted, non-climbing fish exhibited distinct morphology and responded more frequently to an attack stimulus than climbing species. Contrary to our predictions, we found no differences in escape performance among climbing styles. These results indicate that selection for a competing pressure need not limit the ability of prey to escape predator attacks.
登录
查看更多内容
影响因子：
2.9
作者：
Alfaro, ME;Bolnick, DI;Wainwright, PC
通讯作者：
Wainwright, PC
对比定居后选择导致夏威夷爬瀑布虾虎鱼 Sicyopterus stimpsoni 高性能表型的多对一映射
影响因子：
1.9
作者：
K. N. Moody;Sandy M. Kawano;W. Bridges;R. Blob;H. Schoenfuss;M. Ptacek
通讯作者：
M. Ptacek
影响因子：
2
作者：
Cediel, Roberto A.;Blob, Richard W.;Schoenfuss, Heiko L.
通讯作者：
Schoenfuss, Heiko L.
功能形态学对渔业保护和管理的重要性：在夏威夷双性鱼类中的应用
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
H. E. L. S. Choenfuss;R. I. W. B. Lob
通讯作者：
R. I. W. B. Lob
两种攀爬瀑布的戈壁鱼运动行为的差异对应于形态选择的不同模式
影响因子：
1.9
作者：
Sandy M. Kawano;W. Bridges;H. Schoenfuss;T. Maie;R. Blob
通讯作者：
R. Blob