Environmental constraints on life histories in Antarctic ecosystems: tempos, timings and predictability
Environmental constraints on life histories in Antarctic ecosystems: tempos, timings and predictability
复制标题
南极生态系统生命史的环境限制：节奏、时间和可预测性
DOI：
--
复制
发表时间：
2005
影响因子：
--
通讯作者：
D. Barnes
中科院分区：
文献类型：
--
作者：
L. Peck;P. Convey;D. Barnes
近年来，对南极生物和环境的了解急剧增加。新技术的使用也在迅速增加。尽管如此，南极生物生理、生态和生活史特征的环境控制的一些基本方面却很少受到关注。其中最重要的可能是资源的时机和可用性，以及它们决定生活节奏或步调的方式。这种效应最清晰的观点来自于对生活在不同栖息地的物种的比较。在这里，我们(i)表明资源可用性的时间和程度，从营养物质到可定居空间，在南极海洋，潮间带和陆地栖息地之间存在差异，并且（ii）说明这些差异影响生物功能的速度。因此，生活在相距仅10米的生物之间存在着许多巨大的生物学差异，但它们之间在生态上却存在着巨大的空白。
Knowledge of Antarctic biotas and environments has increased dramatically in recent years. There has also been a rapid increase in the use of novel technologies. Despite this, some fundamental aspects of environmental control that structure physiological, ecological and life‐history traits in Antarctic organisms have received little attention. Possibly the most important of these is the timing and availability of resources, and the way in which this dictates the tempo or pace of life. The clearest view of this effect comes from comparisons of species living in different habitats. Here, we (i) show that the timing and extent of resource availability, from nutrients to colonisable space, differ across Antarctic marine, intertidal and terrestrial habitats, and (ii) illustrate that these differences affect the rate at which organisms function. Consequently, there are many dramatic biological differences between organisms that live as little as 10 m apart, but have gaping voids between them ecologically.