Article
Biology
Yong Zhi Foo, Malgorzata Lagisz, Rose E. O'Dea, Shinichi Nakagawa
Summary: Finding the balance between survival and reproduction is a central problem in life-history theory. The terminal investment hypothesis predicts that individuals facing a survival threat will increase immediate reproductive investment to maximize fitness. However, research on this hypothesis has yielded mixed results. In this study, a meta-analysis was conducted to examine reproductive investment in multicellular animals after an immune challenge. The results provided some support for the hypotheses, showing stronger terminal investment responses in older individuals with lower residual reproductive values, as well as an increase in variance, particularly in longer-living species.
Article
Agriculture, Dairy & Animal Science
Kun Guo, Xiang-Mo Li, Yan-Qing Wu, Yan-Fu Qu, Xiang Ji
Summary: The study of female reproductive traits of the red-banded wolf snake (Lycodon rufozonatus) in Zhejiang, East China over four years showed that postpartum body mass, clutch mass, and egg size were significantly greater in 2010 compared to other years, after accounting for female size. Contrary to traditional views, females did not trade off egg size against number.
Article
Ecology
Alycia C. R. Lackey, Howard H. Whiteman
Summary: Climate change has diverse effects on populations, with variations in response across different populations and life stages. An experimental study on mole salamanders found that a slight increase in temperature during larval development had complex consequences, including density-dependent effects on growth and body mass, density-independent effects on fat storage, and no effects on survival and reproductive investment. Although warming reduced growth rates, size at maturity, and fat storage, it did not significantly impact survival and reproductive investment in the first year. However, smaller body size and lower fat reserves may limit overwintering survival and future reproduction.
Article
Marine & Freshwater Biology
Scott C. Burgess, Marilia Bueno
Summary: The study found that the growth rate of marine bryozoans is not simply dependent on body size, but directly affects variation in fitness, especially in terms of the impact of early juvenile growth and growth rate just prior to reproduction on fitness.
Article
Multidisciplinary Sciences
Bianca Stapelfeldt, Alexander Scheuerlein, Christoph Tress, Ralf Koch, Johannes Tress, Gerald Kerth
Summary: Bats' reproductive success, especially for young females, is significantly affected by increased precipitation during a short time window in spring. Additionally, larger females have higher reproductive success.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Review
Ecology
Mariko Nagano, Masaki Sakamoto, Kwang-Hyeon Chang, Hideyuki Doi
Summary: Predator-induced plasticity is an adaptive response in prey to predation risks. This study compares the predator-induced plasticity of Daphnia against size-selective predators and shows that body size is a key trait influencing its plasticity expression and evolution.
FRESHWATER BIOLOGY
(2023)
Article
Biology
Kaitlyn G. Holden, Eric J. Gangloff, David A. W. Miller, Ashley R. Hedrick, Carli Dinsmore, Alison Basel, Greta Kutz, Anne M. Bronikowski
Summary: Changing climates and severe weather events can impact population viability, and individuals can buffer these negative effects through physiological plasticity. Prioritizing maintenance and survival over current reproduction may be a more effective strategy for surviving changing climates. In a study on garter snakes, it was found that animals with a slow pace-of-life (POL) exhibited higher baseline corticosterone and lower baseline glucose, indicating a greater resilience to environmental stressors.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Ecology
Will Sowersby, Simon Eckerstrom-Liedholm, Alexander Kotrschal, Joacim Naslund, Piotr Rowinski, Alejandro Gonzalez-Voyer, Bjorn Rogell
Summary: Research suggests that there may not be a trade-off between brain size and life-history pace in killifish, as fast-living species have larger relative brain sizes in adulthood compared to slow-living species. This discrepancy could potentially be due to differences in the timing of somatic versus neural growth or cognitive demands in their respective environments.
Article
Ecology
Kelly K. Hastings, Devin S. Johnson, Grey W. Pendleton, Brian S. Fadely, Thomas S. Gelatt
Summary: The study found that maternal care beyond age 1 is common among Steller sea lions, with variations in weaning time and survival rate among populations in different regions, and lower survival rate for yearlings in the southeastern area.
ECOLOGY AND EVOLUTION
(2021)
Article
Biochemistry & Molecular Biology
Michael Le Pepke, Thomas Kvalnes, Bernt Ronning, Henrik Jensen, Winnie Boner, Bernt-Erik Saether, Pat Monaghan, Thor Harald Ringsby
Summary: The study investigated the impact of artificial selection on body size on wild house sparrows and found that selecting for larger individuals led to a decrease in telomere length, while selecting for smaller individuals did not have a significant effect.
Article
Ecology
Jacint Tokolyi
Summary: Body size strongly depends on developmental temperature, with individuals developing at lower temperatures typically achieving larger sizes. Reproduction and survival are more influenced by size in cold environments, favoring larger body sizes for enhanced reproductive success. Size manipulation is temperature-dependent, with cold environments posing constraints on physiological performance related to sexual development and compensatory growth.
FUNCTIONAL ECOLOGY
(2023)
Article
Ecology
Elisabeth G. Chapman, Jill G. Pilkington, Josephine M. Pemberton
Summary: Life history trade-offs are common and place constraints on the timing of reproduction events. However, studies on male mammals' lifetime breeding success are scarce due to sex-biased dispersal and genetic paternity requirements. We investigated early life reproduction in male Soay sheep and found that individuals born in years with low-density population had higher early breeding success. Singleton individuals were more successful than twins. Successful breeding at 7 months increased survival chances for the first winter. There was no association between early breeding success and later breeding success for individuals that survived their first winter. We believe that individual quality variations mask the costs of early reproduction in this population.
ECOLOGY AND EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Andrew I. Furness, Chris Venditti, Isabella Capellini
Summary: The study analyzes data from over 800 amphibian species and finds that amphibians with direct development and those that lay eggs in terrestrial environments have larger eggs and smaller clutches. The effects of different care behaviors and adaptations on the trade-off vary.
Article
Ecology
Nadja Verspagen, Suvi Ikonen, Dirk Maes, Constanti Stefanescu, Michelle F. Dileo, Marjo Saastamoinen
Summary: Trade-offs among traits vary within species living across environmental clines, possibly as a consequence of natural selection to local environmental conditions or other genetic constraints. Understanding these variations is important in predicting species' responses to climate change.
FUNCTIONAL ECOLOGY
(2023)
Article
Ecology
Cristhiana Ropke, Tiago H. S. Pires, Jansen Zuanon, Carlos E. C. Freitas, Marina C. Hernandes, Flavia Souza, Sidineia Amadio
Summary: Understanding the factors that regulate temporal changes in population size is crucial in ecology for maintaining species interactions, ecosystem stability, and biodiversity conservation. This study examined the population stability of 70 Amazonian floodplain fish species in relation to life-history traits and fishing pressure, finding significant relationships with certain life-history traits but not with fishing pressure. The findings stress the importance of life-history traits in controlling population size variation and can inform fisheries and conservation management strategies.
FRESHWATER BIOLOGY
(2021)
Article
Ecology
Gabriela Cardozo, Sergio Naretto, Cecilia S. Blengini, Margarita Chiaraviglio
ANNALES ZOOLOGICI FENNICI
(2015)
Article
Ecology
Sergio Naretto, Gabriela Cardozo, Cecilia S. Blengini, Margarita Chiaraviglio
Article
Zoology
Guadalupe Lopez Juri, Sergio Naretto, Ana Carolina Mateos, Margarita Chiaraviglio, Gabriela Cardozo
SOUTH AMERICAN JOURNAL OF HERPETOLOGY
(2015)
Article
Evolutionary Biology
Cecilia S. Blengini, Sergio Naretto, Gabriela Cardozo, Laura C. Giojalas, Margarita Chiaraviglio
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2016)
Article
Zoology
C. S. Blengini, S. Naretto, G. Cardozo, L. C. Giojalas, M. Chiaraviglio
ZOOLOGISCHER ANZEIGER
(2017)
Article
Biology
Guadalupe Lopez Juri, Margarita Chiaraviglio, Gabriela Cardozo
JOURNAL OF THERMAL BIOLOGY
(2018)
Article
Reproductive Biology
Guadalupe Lopez Juri, Margarita Chiaraviglio, Gabriela Cardozo
Article
Evolutionary Biology
Guadalupe Lopez Juri, Margarita Chiaraviglio, Gabriela Cardozo
BMC EVOLUTIONARY BIOLOGY
(2018)
Article
Multidisciplinary Sciences
N. Rossi, S. Benitez-Vieyra, A. Cocucci, M. Chiaraviglio, G. Cardozo
SCIENTIFIC REPORTS
(2019)
Article
Zoology
Imanol Cabana, Margarita Chiaraviglio, Valeria Di Cola, Antoine Guisan, Olivier Broennimann, Cristina N. Gardenal, Paula C. Rivera
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2020)
Article
Evolutionary Biology
Guadalupe Lopez Juri, Nicola Rossi, Margarita Chiaraviglio, Gabriela Cardozo
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2020)
Article
Zoology
S. Naretto, M. Chiaraviglio
CANADIAN JOURNAL OF ZOOLOGY
(2020)
Article
Zoology
Cecilia Soledad Blengini, Guadalupe Lopez Juri, Margarita Chiaraviglio, Diego Rafael Unates, Sergio Naretto
Article
Biology
N. Rossi, G. Lopez Juri, M. Chiaraviglio, G. Cardozo
Summary: This study investigates the impact of global warming on sperm dynamics in ectotherms, finding that high temperatures negatively affect sperm movement and survival, but oviductal fluid can mitigate these effects.
Article
Biology
Sergio Naretto, Cecilia S. Blengini, Gabriela Cardozo, Margarita Chiaraviglio