Causality and Persistence in Ecological Systems: A Nonparametric Spectral Granger Causality Approach

因果关系(物理学) 格兰杰因果关系 计量经济学 非参数统计 计算机科学 多元统计 生态学 数学 生物 机器学习 物理 量子力学
作者
Matteo Detto,Annalisa Molini,Gabriel G. Katul,Paul C. Stoy,Sari Palmroth,Dennis D. Baldocchi
出处
期刊:The American Naturalist [University of Chicago Press]
卷期号:179 (4): 524-535 被引量:67
标识
DOI:10.1086/664628
摘要

Directionality in coupling, defined as the linkage relating causes to their effects at a later time, can be used to explain the core dynamics of ecological systems by untangling direct and feedback relationships between the different components of the systems. Inferring causality from measured ecological variables sampled through time remains a formidable challenge further made difficult by the action of periodic drivers overlapping the natural dynamics of the system. Periodicity in the drivers can often mask the self-sustained oscillations originating from the autonomous dynamics. While linear and direct causal relationships are commonly addressed in the time domain, using the well-established machinery of Granger causality (G-causality), the presence of periodic forcing requires frequency-based statistics (e.g., the Fourier transform), able to distinguish coupling induced by oscillations in external drivers from genuine endogenous interactions. Recent nonparametric spectral extensions of G-causality to the frequency domain pave the way for the scale-by-scale decomposition of causality, which can improve our ability to link oscillatory behaviors of ecological networks to causal mechanisms. The performance of both spectral G-causality and its conditional extension for multivariate systems is explored in quantifying causal interactions within ecological networks. Through two case studies involving synthetic and actual time series, it is demonstrated that conditional G-causality outperforms standard G-causality in identifying causal links and their concomitant timescales.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
大帅发布了新的文献求助10
1秒前
星辰大海应助dudu采纳,获得10
2秒前
westbobo完成签到,获得积分10
2秒前
寸愿发布了新的文献求助10
2秒前
cj完成签到,获得积分10
2秒前
dsf发布了新的文献求助20
3秒前
3秒前
4秒前
whitedawn发布了新的文献求助10
4秒前
55155255完成签到,获得积分10
4秒前
惠惠不会完成签到,获得积分10
5秒前
westbobo发布了新的文献求助10
6秒前
橙子发布了新的文献求助30
7秒前
uu发布了新的文献求助10
7秒前
7秒前
你想不想变成一粒芝麻完成签到,获得积分10
8秒前
Marjorie完成签到,获得积分10
8秒前
去晒月亮发布了新的文献求助10
8秒前
8秒前
9秒前
领导范儿应助神奇小鹿采纳,获得10
10秒前
无私竺完成签到,获得积分10
10秒前
深情的鑫鹏完成签到,获得积分10
10秒前
Rondab应助宛拗采纳,获得10
11秒前
11秒前
桐桐应助高序采纳,获得10
11秒前
12秒前
13秒前
大帅完成签到,获得积分20
13秒前
雁夜完成签到,获得积分10
13秒前
13秒前
落寞之云发布了新的文献求助10
13秒前
14秒前
上官若男应助cyw采纳,获得10
15秒前
细腻亦巧完成签到,获得积分10
15秒前
机智念桃完成签到,获得积分20
15秒前
15秒前
儒雅的翎完成签到,获得积分10
16秒前
反向大笨钟完成签到,获得积分10
16秒前
16秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3974882
求助须知:如何正确求助?哪些是违规求助? 3519431
关于积分的说明 11198315
捐赠科研通 3255698
什么是DOI,文献DOI怎么找? 1797904
邀请新用户注册赠送积分活动 877237
科研通“疑难数据库(出版商)”最低求助积分说明 806219