Trade-offs between life-history traits are due to limited resources or constraints in the regulation of genetic and physiological networks. Tail autotomy, with subsequent regeneration, is a common anti-predation mechanism in lizards and is predicted to trade-off with life-history traits, such as reproduction. We utilize the brown anole lizard with its unusual reproductive pattern of single-egg clutches every 7-10 days to test for a trade-off in reproductive investment over 8 weeks of tail regeneration on a limited diet. In contrast to predictions, we found that investing in tissue regeneration had a positive effect on reproduction in terms of egg size (11.7% relative to controls) and hatchling size (11.5% relative to controls), and no effect on egg number or survival, with the increase in reproduction starting at peak regeneration. We discuss mechanistic hypotheses that the process of regeneration may cause increased energetic efficiency or utilized shared physiological pathways with reproductive investment.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8423523 | PMC |
| http://dx.doi.org/10.1002/jez.2472 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Parental effects provide an opportunity for coral resilience following major bleaching events.
PLoS One
January 2025
School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, United States of America.
Identifying processes that promote coral reef recovery and resilience is crucial as ocean warming becomes more frequent and severe. Sexual reproduction is essential for the replenishment of coral populations and maintenance of genetic diversity; however, the ability for corals to reproduce may be impaired by marine heatwaves that cause coral bleaching. In 2014 and 2015, the Hawaiian Islands experienced coral bleaching with differential bleaching susceptibility in the species Montipora capitata, a dominant reef-building coral in the region.
View Article and Find Full Text PDFSeasonal Influenza Vaccination Programs in the Americas: A Platform for Sustainable Life-Course Immunization and Its Role for Pandemic Preparedness and Response.
Vaccines (Basel)
December 2024
Country Office for the Dominican Republic, Pan American Health Organization (PAHO)/World Health Organization (WHO), Ensanche La Fé, Santo Domingo 10514, Dominican Republic.
Vaccination is one of the most effective measures to prevent influenza illness and its complications. Since the 1980s, countries and territories in the Americas have progressively implemented influenza vaccination operations in high-risk priority groups-such as older adults, pregnant persons, persons with comorbidities and health workers. In this review, we present the history and progress of the seasonal influenza program in the Americas, how the program contributed to the efficient and timely roll-out of the COVID-19 vaccines during the pandemic, and how the program can be used to promote immunization operations across the life span for existing and future vaccines.
View Article and Find Full Text PDFEnd of the Season Blues: Senescence and Reproductive Trade-Offs in Male Scorpions.
Insects
November 2024
Laboratorio de Biología Reproductiva y Evolución, Instituto de Diversidad y Ecología Animal (IDEA), CONICET-UNC, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba Av. Vélez Sarsfield 299, Córdoba X5000, Argentina.
Seasonal reproductive dynamics and senescence have profound impacts on male fertility, yet these processes remain understudied in scorpions. This study investigates how reproductive parameters-such as testicular mass, sperm quantity, and viability-change over the course of the reproductive season in males. We found that early-season males exhibited higher sperm quality and testicular mass compared to their older counterparts, suggesting that senescence, rather than reproductive effort, drives the decline in sperm viability.
View Article and Find Full Text PDFFibrinogen Structural Changes and Their Potential Role in Endometriosis-Related Thrombosis.
Antioxidants (Basel)
November 2024
Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Firenze, 50134 Firenze, Italy.
Endometriosis (EM), a chronic inflammatory condition predominantly affecting women of reproductive age, has been linked to an elevated risk of thrombosis, though its underlying molecular mechanisms remain incompletely understood. In this case-control study, involving 71 EM patients and 71 matched controls, we explored the structural and functional changes in fibrinogen and their potential role in thrombosis. Key oxidative stress markers, such as reactive oxygen species (ROS) levels in blood lymphocytes, monocytes, and granulocytes, along with plasma lipid peroxidation markers and total antioxidant capacity, were measured.
View Article and Find Full Text PDFMeaningful Engagement as a Cornerstone for Implementing the Key Recommendations to Advance the Sexual and Reproductive Health and Rights of Women Living With HIV Across Policy, Practice, and Research in Canada.
J Int Assoc Provid AIDS Care
January 2025
Faculty of Health Sciences, Simon Fraser University, Vancouver BC, Canada.
In 2022, a community-academic collaborative team published 5 key recommendations for developing a national action plan to advance the sexual and reproductive health and rights (SRHR) of women living with HIV in Canada. In 2023, a national gathering was convened to strategize implementation of the recommendations across policy, practice, and research settings. Discussions highlighted that meaningful engagement of women living with HIV (recommendation 1) is foundational to implementing the other recommendations.
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!