Habitability Is Binary, But It Is Used by Astrobiologists to Encompass Continuous Ecological Questions.
Habitability Is Binary, But It Is Used by Astrobiologists to Encompass Continuous Ecological Questions.
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宜居性是二元的，但天体生物学家用它来涵盖连续的生态问题。
DOI：
10.1089/ast.2021.0038
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发表时间：
2022
期刊：
影响因子：
4.2
通讯作者：
Cockell CS
中科院分区：
文献类型：
--
作者：
Cockell CS
“宜居性”一词在空间科学和天体生物学文献中随处可见，被广泛用来描述环境维持生命的能力。在这里，我们认为，尽管从根本上讲，生物体能否在环境中生存是一个二元问题，但这些二元评估导致了持续的生态测量，这些测量通常被天体生物学家归类为“宜居性”。尽管以这种方式使用宜居性为那些研究环境支持生命的潜力的人提供了一个框架，包括对陆地环境和外星环境的比较分析，但它也可能造成混乱，限制跨学科理解。也就是说，作为宜居性代理的不同生态指标可以根据所选的指标产生不同的结论。因此，我们认为，在这种连续的意义上，术语宜居和宜居失去了意义，除非为解决它而选择的具体科学问题和生物学指标得到了定义。作为推论，寻找通用的单一指标来进行宜居评估是不受鼓励的，正如我们所说的那样，试图这样做将过于简单地分析环境维持生命的能力。
The term “habitability” is pervasive throughout the space sciences and astrobiology literature and is broadly used to describe an environment's ability to support life. Here, we argue that, while it is fundamentally a binary matter whether an organism can persist in an environment or not, these binary assessments lead to continuous ecological measurements that are often collected under the umbrella term “habitability” by astrobiologists. Although the use of habitability in this way has provided a framework for those studying the potential of environments to support life, including comparative analyses between terrestrial and extraterrestrial environments, it can also generate confusion and limit interdisciplinary understanding. Namely, differing ecological metrics used as proxies for habitability can yield differing conclusions depending upon the metrics chosen. Therefore, we suggest that in this continuous sense, the terms habitable and habitability lose meaning unless the specific scientific question and biological metric chosen to address it are defined. As a corollary, the search for universal single metrics to make habitability assessments is not to be encouraged, and as we argue, attempting to do so would oversimply analyses of the ability of environments to support life.
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影响因子：
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