Noel A. Heim
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View article: <scp>MOBS</scp> 1.0: A Database of Interspecific Variation in Marine Organismal Body Sizes
<span>MOBS</span> 1.0: A Database of Interspecific Variation in Marine Organismal Body Sizes Open
Motivation Body size is a fundamental trait influencing an organism's life history, ecology, physiology and evolutionary dynamics. While extensive body‐size databases exist for terrestrial vertebrates, equivalent datasets for marine animal…
View article: Navigating uncertainty in maximum body size in marine metazoans
Navigating uncertainty in maximum body size in marine metazoans Open
Body size is a fundamental biological trait shaping ecological interactions, evolutionary processes, and our understanding of the structure and dynamics of marine communities on a global scale. Accurately defining a species' body size, des…
View article: Decision: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR10
Decision: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR10 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR8
Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR8 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Recommendation: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR9
Recommendation: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR9 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR7
Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R1/PR7 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Decision: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR5
Decision: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR5 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Recommendation: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR4
Recommendation: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR4 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Reduced strength and increased variability of extinction selectivity during mass extinctions
Reduced strength and increased variability of extinction selectivity during mass extinctions Open
Two of the traits most often observed to correlate with extinction risk in marine animals are geographical range and body size. However, the relative effects of these two traits on extinction risk have not been investigated systematically …
View article: Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR3
Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR3 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR2
Review: A Global Ecological Signal of Extinction Risk in Marine Ray-Finned Fishes (Class Actinopterygii) — R0/PR2 Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Hyperthermal events have a greater effect on body size origination selectivity than extinction
Hyperthermal events have a greater effect on body size origination selectivity than extinction Open
Ancient hyperthermal events in Earth’s history are ideal to isolate the evolutionary consequences of climate change and other environmental factors from other anthropogenic influences. A key biological trait hypothesized to be sensit…
View article: A global ecological signal of extinction risk in marine ray-finned fishes (class Actinopterygii)
A global ecological signal of extinction risk in marine ray-finned fishes (class Actinopterygii) Open
Many marine fish species are experiencing population declines, but their extinction risk profiles are largely understudied in comparison to their terrestrial vertebrate counterparts. Selective extinction of marine fish species may result i…
View article: Using Machine Learning Models and Logistic Regression Analyses to Develop a Comprehensive Understanding of Extinction Risk For Marine Animal Phyla Across the Paleozoic
Using Machine Learning Models and Logistic Regression Analyses to Develop a Comprehensive Understanding of Extinction Risk For Marine Animal Phyla Across the Paleozoic Open
Extinction within the Paleozoic era has been studied in the past, but there still lacks a comprehensive understanding of how extinction risk changed throughout it. Our research project aims to bridge this gap by exploring extinction risk i…
View article: Investigating the Relationship between Metabolic Rate and Extinction Probability for Arthropoda, Brachiopoda, Echinodermata, and Mollusca Phyla during the Cenozoic Era
Investigating the Relationship between Metabolic Rate and Extinction Probability for Arthropoda, Brachiopoda, Echinodermata, and Mollusca Phyla during the Cenozoic Era Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Investigating the Relationship between Metabolic Rate and Extinction Probability for Arthropoda, Brachiopoda, Echinodermata, and Mollus…
View article: A global ecological signal of extinction risk in terrestrial vertebrates
A global ecological signal of extinction risk in terrestrial vertebrates Open
To determine the distribution and causes of extinction threat across functional groups of terrestrial vertebrates, we assembled an ecological trait data set for 18,016 species of terrestrial vertebrates and utilized phylogenetic comparativ…
View article: Mass extinctions alter extinction and origination dynamics with respect to body size
Mass extinctions alter extinction and origination dynamics with respect to body size Open
Whether mass extinctions and their associated recoveries represent an intensification of background extinction and origination dynamics versus a separate macroevolutionary regime remains a central debate in evolutionary biology. The previo…
View article: The evolution of complex life and the stabilization of the Earth system
The evolution of complex life and the stabilization of the Earth system Open
The half-billion-year history of animal evolution is characterized by decreasing rates of background extinction. Earth's increasing habitability for animals could result from several processes: (i) a decrease in the intensity of interactio…
View article: Respiratory medium and circulatory anatomy constrain size evolution in marine macrofauna
Respiratory medium and circulatory anatomy constrain size evolution in marine macrofauna Open
The typical marine animal has increased in biovolume by more than two orders of magnitude since the beginning of the Cambrian, but the causes of this trend remain unknown. We test the hypothesis that the efficiency of intra-organism oxygen…
View article: Evaluating the influences of temperature, primary production, and evolutionary history on bivalve growth rates
Evaluating the influences of temperature, primary production, and evolutionary history on bivalve growth rates Open
Organismal metabolic rates reflect the interaction of environmental and physiological factors. Thus, calcifying organisms that record growth history can provide insight into both the ancient environments in which they lived and their own p…
View article: Hierarchical complexity and the size limits of life
Hierarchical complexity and the size limits of life Open
Over the past 3.8 billion years, the maximum size of life has increased by approximately 18 orders of magnitude. Much of this increase is associated with two major evolutionary innovations: the evolution of eukaryotes from prokaryotic cell…
View article: Data File from Hierarchical complexity and the size limits of life
Data File from Hierarchical complexity and the size limits of life Open
Size (cubic mm) and complexity level for all taxa used in this study
View article: Data References from Hierarchical complexity and the size limits of life
Data References from Hierarchical complexity and the size limits of life Open
References for sizes in Data File
View article: Supplementary material from "Hierarchical complexity and the size limits of life"
Supplementary material from "Hierarchical complexity and the size limits of life" Open
Over the past 3.8 billion years, the maximum size of life has increased by approximately 18 orders of magnitude. Much of this increase is associated with two major evolutionary innovations: the evolution of eukaryotes from prokaryotic cell…
View article: Extinction intensity, selectivity and their combined macroevolutionary influence in the fossil record
Extinction intensity, selectivity and their combined macroevolutionary influence in the fossil record Open
The macroevolutionary effects of extinction derive from both intensity of taxonomic losses and selectivity of losses with respect to ecology, physiology and/or higher taxonomy. Increasingly, palaeontologists are using logistic regression t…
View article: Limited role of functional differentiation in early diversification of animals
Limited role of functional differentiation in early diversification of animals Open
The origin of most animal phyla and classes during the Cambrian explosion has been hypothesized to represent an ‘early burst’ of evolutionary exploration of functional ecological possibilities. However, the ecological history of marine ani…