To advance understanding of biodiversity and ecosystem function, ecologists seek widely applicable relationships among species diversity and other ecosystem characteristics such as species productivity, biomass, and abundance. These metrics vary widely across ecosystems and no relationship among any combination of them that is valid across habitats, taxa, and spatial scales, has heretofore been found. Here we derive such a relationship, an equation of state, among species richness, energy flow, biomass, and abundance by combining results from the Maximum Entropy Theory of Ecology and the Metabolic Theory of Ecology. It accurately captures the relationship among these state variables in 42 data sets, including vegetation and arthropod communities, that span a wide variety of spatial scales and habitats. The success of our ecological equation of state opens opportunities for estimating difficult-to-measure state variables from measurements of others, adds support for two current theories in ecology, and is a step toward unification in ecology.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9411111 | PMC |
| http://dx.doi.org/10.1038/s42003-022-03817-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pre-disability resilience and well-being following the onset of functional impairments.
Br J Health Psychol
February 2025
Department of Primary Care and Rural Medicine, Texas A&M University School of Medicine, Bryan, Texas, USA.
Objectives: Tested the prospective relationship of a resilient personality prototype determined prior to disability onset to well-being among persons with and without debilitating functional impairments nine to 10 years later. A resilient profile was expected to predict well-being through its beneficial associations with positive affect, perceived control and social support.
Design: Longitudinal, prospective observation study.
New Torsional Surface Elastic Waves in Cylindrical Metamaterial Waveguides for Sensing Applications.
Sensors (Basel)
December 2024
Institute of Fundamental Technological Research, Polish Academy of Sciences, ul. Pawińskiego 5B, 02-106 Warsaw, Poland.
In this paper, we demonstrate that torsional surface elastic waves can propagate along the curved surface of a metamaterial elastic rod (cylinder) embedded in a conventional elastic medium. The crucial parameter of the metamaterial rod is its elastic compliance s44(1)ω, which varies as a function of frequency ω analogously to the dielectric function εω in Drude's model of metals. As a consequence, the elastic compliance s44(1)ω can take negative values s44(1)ω<0 as a function of frequency ω.
View Article and Find Full Text PDFMetabolic Adaptation and Its Determinants in Adolescents Two Years After Sleeve Gastrectomy.
Nutrients
December 2024
Division of Pediatric Endocrinology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
Weight loss is associated with reductions in resting energy expenditure (REE), which are impacted by changes in body composition following sleeve gastrectomy (SG). Current data regarding changes in measured REE (mREE) and metabolic adaptation in adolescents after SG are limited. We evaluated changes in mREE, metabolic adaptation, and body composition in youths after SG vs.
View Article and Find Full Text PDFPhysico-Chemical Properties of Granular Sorbents Based on Natural Bentonite Modified by Polyhydroxocations of Aluminum and Iron (III) by Co-Precipitation.
Molecules
January 2025
Department of General and Biological Chemistry, Astana Medical University, 010000 Astana, Kazakhstan.
The physicochemical and adsorption properties of granular sorbents based on natural bentonite and modified sorbents based on it have been studied. It was found that modification of natural bentonite with iron (III) polyhydroxocations (mod. 1_Fe_5 GA) and aluminum (III) (mod.
View Article and Find Full Text PDFThe association between neighborhood social vulnerability and community-based rehabilitation after stroke.
BMC Health Serv Res
January 2025
Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, USA.
Background: Timely rehabilitative care is vital for functional recovery after stroke. Social determinants may influence access to and use of post-stroke care but have been inadequately explored. The study examined the relationship between the Social Vulnerability Index (SVI) and community-based rehabilitation utilization.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!