...
【24h】

Allometric scaling of plant life history

机译:植物生活史的异速生长比例

获取原文
获取原文并翻译 | 示例
           

摘要

Plant mortality and birth rates are critical components of plant life history affecting the stability of plant populations and the ecosystems they form. Although allometric theory predicts that both plant birth and mortality rates should be size-dependent, this prediction has not yet been tested across plants ranging the full size spectrum. Here we show that both population mortality and population birth rates scale as the -1/4 power and plant lifespan as the Va power of plant mass across plant species spanning from the tiniest phototrophs to the largest trees. Whereas the controls on plant lifespans are as yet poorly understood, our findings suggest that plant mortality rates have evolved to match population birth rates, thereby helping to maintain plant communities in equilibrium and optimizing plant life histories.
机译:植物死亡率和出生率是植物生命史的重要组成部分,会影响植物种群及其形成的生态系统的稳定性。尽管异速生长理论预测植物的出生率和死亡率均应取决于大小,但尚未在全尺寸范围的所有植物上对该预测进行检验。在这里,我们表明,从最小的营养养分到最大的树种,种群死亡率和种群出生率均以-1/4幂和植物寿命随植物质量的Va幂定标。尽管对植物寿命的控制方法了解甚少,但我们的发现表明植物死亡率已经与种群出生率匹配,从而有助于维持植物群落的平衡并优化植物生活史。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号