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Length-mass allometries of the larvae of aquatic dipterans: differences between taxa, morphological traits, and methods.
J Insect Sci
January 2024
Faculty of Science, Department of Ecosystem Biology & Soil and Water Research Infrastructure, University of South Bohemia, Branišovská 1760, CZ-37005 České Budějovice, Czech Republic.
Body mass underpins many ecological processes at the level of individuals, populations, and communities. Often estimated in arthropods from linear morphological traits such as body length or head width, these relationships can vary even between closely related taxa. Length-mass relationships of mosquito (Diptera: Culicidae) larvae are poorly known despite the importance of this family to disease and aquatic ecology.
View Article and Find Full Text PDFMechanistic models project bird invasions with accuracy.
Nat Commun
May 2023
Center for Macroecology, Evolution, and Climate (CMEC), GLOBE Institute, University of Copenhagen, 2100, Copenhagen Ø, Denmark.
Invasive species pose a major threat to biodiversity and inflict massive economic costs. Effective management of bio-invasions depends on reliable predictions of areas at risk of invasion, as they allow early invader detection and rapid responses. Yet, considerable uncertainty remains as to how to predict best potential invasive distribution ranges.
View Article and Find Full Text PDFGiant, swimming mouths: oral dimensions of extant sharks do not accurately predict body size in (Placodermi: Arthrodira).
PeerJ
April 2023
Department of Biology, Case Western Reserve University, Cleveland, OH, United States of America.
Background: The size of and other late Devonian arthrodire placoderms has been a persistent problem in paleontology. The bony head and thoracic armor of these animals are typically the only elements preserved in the fossil record, with the rest of the body being lost during fossilization. Accurate length estimates of arthrodires are critical for reconstructing the paleobiology of these taxa and Devonian paleoecology more generally.
View Article and Find Full Text PDFGrowth constraints set an upper limit to theropod dinosaur body size.
Naturwissenschaften
January 2023
Royal Tyrrell Museum of Palaeontology, Alberta, Drumheller, Canada.
Despite nearly 200 years of scientific collecting and study, none of the extinct, bipedal, predatory, theropod dinosaurs have been reliably shown to exceed 12 m in length. Using digital 3D models of theropods with lengths spanning 80 cm to 12 m, their body masses were found to scale to the 3.5 power of body lengths.
View Article and Find Full Text PDFA Revision of the Traditional Analysis Method of Allometry to Allow Extension of the Normality-Borne Complexity of Error Structure: Examining the Adequacy of a Normal-Mixture Distribution-Driven Error Term.
Biomed Res Int
September 2022
Centro de Investigación Científica y de Estudios Superiores de Ensenada, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, 22860, 360 Ensenada, B.C., Mexico.
Huxley's model of simple allometry provides a parsimonious scheme for examining scaling relationships in scientific research, resource management, and species conservation endeavors. Factors including biological error, analysis method, sample size, and overall data quality can undermine the reliability of a fit of Huxley's model. Customary amendments enhance the complexity of the power function-conveyed systematic term while keeping the usual normality-borne error structure.
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