Reproduction and mortality rates in ecologically distinct species of murid rodents

Новиков, Е. А.; Kondratuk, Ekaterina; Titova, Tatiana V.; Zadubrovsky, P. A.; Zadubrovskaya, I. V.; Потапов, М. А.; Potapova, O. F.; Proskurnyak, L. P.; Назарова, Г. Г.

doi:10.1007/s10522-018-9783-3

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…During the last decade, we realized the multi age-point approach in comparisons of life history, behavioral and physiological traits of some species of Cricetidae family. New results of this project were regularly published (Novikov et al 2015b(Novikov et al , 2017(Novikov et al , 2019(Novikov et al , 2020(Novikov et al , 2022. Since the list of the species involved in this study has been updated and the number of completed observations has steadily increased, the release of new data remains relevant.…”

Section: Introductionmentioning

confidence: 97%

Age-related dynamics of reproductive activity and physical conditions in Cricetidae of different ecological speciation (Rodentia)

Novikov¹

2023

lynx

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To understand the evolutionary preconditions of extended longevity, one can compare the key life-history events and age related changes in body conditions in related species with different ecological speciation. Cricetid rodents possessing a wide spectrum of adaptive forms with different life history strategies are an excellent model for this purpose. We compared median and maximum longevity, life expectancy, temporal distribution of reproductive efforts, and age related dynamic of several physical condition indexes: body mass, muscle strength, locomotor activity and frequency of vertical postures in open field tests in five species of this family. Studied species vary both in maximum (from three years in steppe lemmings (Lagurus lagurus) to more than six years in mole voles (Ellobius talpinus) and rock voles (Alticola strelzovi) and median longevity (from less than one year in Lagurus lagurus to 2.8 years in rock vole Alticola tuvinicus). Both species with high maximum longevity – Ellobius talpinus and Alticola strelzovi face chronic hypoxia in their native environment. The total amount of litters born varied from three in A. strelzovi to 13 in Phodopus sungorus. Species under study also differed in age-related dynamics of physical conditions. Among the studied species, the subterranean E. talpinus has the highest maximum longevity with relatively long duration of reproductive period and only weak age-related deterioration in body conditions, i.e. shares many aspects of the life history strategy of such a specialized group as the Bathyergidae family.

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Section: Introductionmentioning

confidence: 97%

Age-related dynamics of reproductive activity and physical conditions in Cricetidae of different ecological speciation (Rodentia)

Novikov¹

2023

lynx

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“…showed that they trade off longevity and reproductive output (Novikov et al, 2019), indicating that they cannot both live long and experience elevated reproduction.…”

Section: Trade-offs Between Fitness Conferring Traits Across Speciesmentioning

confidence: 99%

Are You What You Eat? How Protein and Carbohydrate Availability during Development Influence Cricket Cognition and other Fitness Conferring Traits in Adulthood

Doria¹

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The conditions experienced during development may influence adult cognition and fitness, especially when conditions are stressful. To test the developmental stress hypothesis, I manipulated Texas field crickets (Gryllus texensis) juvenile diet and observed its effects on cognition (Chapter 1) and other fitness-related traits; I also examined whether diet influenced trade-offs between traits (Chapter 2). Individuals improved their cognition scores with training, but not during the test trial, suggesting developmental diets were stressful, hindering spatial cognition. Female fecundity was greatest in larger females that grew quickly. Males that developed quickly and performed well cognitively had a high probability of adopting a caller strategy; these males also exhibited high calling effort, suggesting high overall condition. For all others, adopting a caller strategy and exhibiting high calling effort only occurred with trade-offs, either via slower development, poorer performance in the cognitive task, or both. Diet did not predict cognitive and reproductive trade-offs. i I am immeasurably grateful to my supervisor, Dr. Susan Bertram, for her support, guidance, and encouragement over the course of completing my Master's degree. I want to thank her for the huge involvement in my research, completion of my thesis, and meetings at Mike's Place that left my brain refreshed and my stomach full. Through the many times over these two years when life outside of academia made it seem too hard to continue, her unwavering reassurance, optimism, and belief in my abilities kept me going, and for that I am forever thankful. I am also extremely grateful to the Biology Department at Carleton University for making my graduate experience such a memorable one. Questions were never left unanswered and I always felt supported, even while being in the lab every morning at 5a.m. To my thesis advisory committee members, Dr. Tom Sherratt and Dr. Julie Morand-Ferron, thank you for your thought-provoking questions and genuine advice over the last two years. A ginormous thank you is needed for all members of the Bertram lab for their support with animal care, experimental assistance, and keeping me company during those incredibly early lab mornings, including Michelle Leveillee, Alyssa Froome, Wes Partington, Jory Curry, Jillian Sims, Angelica Ramos-Camacho, and Kathryn Hunt. I want to especially thank Mykell Reifer and Dr. Sarah Harrison for helping me get my experiment up and running and answering what probably felt like never-ending questions, Dr. Genevieve Ferguson for being there for brainstorming sessions, a constant support when 'thesis-ing' was overwhelming, and being my grad student inspiration, and Donovan Tremblay, for being my confidante through graduate school and someone who was always willing to help me with my frequent computer troubles-the laughs, board games, and beer helped me get through the last two years.

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Age-related differences in physiology and survival of northern red-backed voles (Myodes rutilus) in captivity

2019

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Reproduction and mortality rates in ecologically distinct species of murid rodents

Cited by 4 publications

References 22 publications

Age-related dynamics of reproductive activity and physical conditions in Cricetidae of different ecological speciation (Rodentia)

Age-related dynamics of reproductive activity and physical conditions in Cricetidae of different ecological speciation (Rodentia)

Are You What You Eat? How Protein and Carbohydrate Availability during Development Influence Cricket Cognition and other Fitness Conferring Traits in Adulthood

Age-related differences in physiology and survival of northern red-backed voles (Myodes rutilus) in captivity

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