Energy budgets, growth rates, and thermal constraints: toward an integrative approach to the study of life-history variation

The American Naturalist
P H Niewiarowski

Abstract

Variation in thermal constraints on activity has been hypothesized to be an important ecological source of geographic variation in growth rates of juvenile eastern fence lizards Sceloporus undulatus. However, most of the evidence to support this hypothesis is either inferential or indirect. In this study, I quantitatively compared thermal constraints on activity and their relationship to growth rates of free-ranging juvenile fence lizards from two extremes of the range of variation in growth rate (Nebraska and New Jersey) used in a reciprocal transplant experiment. I also examined energy allocation made to growth and storage by yearling lizards. Reduced growth rates in New Jersey of normally fast-growing hatchlings from Nebraska were associated with a more stringent thermal constraint on activity corresponding to a 2-3-h shorter predicted daily activity period in New Jersey compared to Nebraska. The thermal constraint on activity was particularly strong (24% less time available in New Jersey compared to Nebraska) during the period when hatchling lizards emerge (August-October). An 8% reduction in total activity time available over the course of a single year was associated with a 7% reduction in the total amount of energy accum...Continue Reading

References

Jan 28, 1998·Annual Review of Entomology·S Nylin, K Gotthard
Aug 1, 1993·The American Naturalist·S C Adolph, W P Porter
May 1, 1993·Trends in Ecology & Evolution·J Bernardo
Jun 1, 1995·Trends in Ecology & Evolution·D O Conover, E T Schultz
Jun 1, 1997·Trends in Ecology & Evolution·D Atkinson, R M Sibly

❮ Previous
Next ❯

Citations

Feb 3, 2005·Zoological Science·Wen-San Huang, John Yuh-Lin Yu
Oct 14, 2005·Biological Reviews of the Cambridge Philosophical Society·Peter A Parsons
May 12, 2007·Evolution; International Journal of Organic Evolution·Ryan Calsbeek, Barry Sinervo
Jul 5, 2006·Evolution; International Journal of Organic Evolution·Christopher E Oufieroi, Michael J Angilletta
Mar 8, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Michael W Sears
Feb 18, 2006·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Stacey SpanovichRichard L Londraville
May 9, 2019·Integrative and Comparative Biology·Peter H NiewiarowskiAustin M Garner
Jun 1, 2007·Research in Human Development·David T TakeuchiMargarita Alegría
Nov 19, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Jorgelina M BorettoNora R Ibargüengoytía

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved