推断已灭绝的鱼类的生活方式,使用骨皮的装饰
Mariana Valéria de Araújo Sena1,2, Jorge Cubo3
1Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS, Centre de Recherche en Paléontologie-Paris (CR2P, UMR 7207), 4 Place Jussieu, 104, 75005, Paris, BC, France. mari.araujo.sena@gmail.com.
Die Naturwissenschaften
|August 7, 2023
概括
鱼的骨皮装饰与生活方式有关. 下部装饰 (坑的相对面积) 与陆地生活方式相关,表明适应不同热环境.
科学领域:
- 古生物学的古生物学
- 脊椎动物动物学 脊椎动物动物学
- 热调节 热调节 热调节
背景情况:
- 骨皮体是许多脊椎动物,特别是鱼类动物中发现的皮肤骨板,通常具有表面装饰.
- 假设这种装饰物有助于半水生物种的温度调节,通过增强太阳能热吸收来抵消水中的热损失.
研究的目的:
- 调查鱼形动物骨皮装饰的功能意义.
- 确定骨皮的装饰和生活方式 (陆地与水生) 之间的关系.
主要方法:
- 使用了家族遗传逻辑回归分析.
- 该研究分析了骨皮动物的相对孔面积 (RAP) 与各种鱼形动物的生活方式之间的关系.
主要成果:
- 生活方式在很大程度上是由RAP解释的;较低的装饰 (较低的RAP) 与陆地生活方式的更高概率有关.
- 这种模型被用来推断灭绝的鱼类,Peirosaurus torminni和Microsuchus schilleri的生活方式.
- 陆地notosuchians可能由于空气中的热量损失相比于水的减少而失去骨皮的装饰.
结论:
- 陆地鱼可能已经失去了骨皮的装饰,因为它对空气中的温度调节不那么重要.
- 对于陆地notosuchians的温度调节的假设包括大型物种的热惯性和较小物种的行为适应 (basking, burrowing).
- 海洋大猩猩可能由于不断游泳而失去骨皮,产生热量,从而否定了对吸收性结构的需求.
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