Article
Endocrinology & Metabolism
Matthew Ridenour, Leon J. Spicer, Jennifer L. Grindstaff
Summary: In altricial animals, the ability to outcompete siblings for parental provisioning has clear fitness benefits, and this may be influenced by hormones such as insulin-like growth factor 1 (IGF-1). In a study on eastern bluebirds, the effects of IGF-1 on body size, growth, and sibling rivalry were analyzed. The results suggest that IGF-1 can influence the growth of bluebird nestlings.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2023)
Article
Entomology
Yui Imasaki, Tomoji Endo
Summary: Sibling cannibalism is observed in the solitary wasp Isodontia harmandi, with more frequent occurrences in low-prey conditions and female pairs. Cannibalism tended to occur earlier as the amount of remaining prey decreased rapidly. Cannibals were larger than their victims, and cannibalism provided nutritional gains and reduced resource competition.
ENVIRONMENTAL ENTOMOLOGY
(2023)
Article
Zoology
Juan Jose Soler, Manuel Martin-Vivaldi, Sona Nuhlickova, Cristina Ruiz-Castellano, Monica Mazorra-Alonso, Ester Martinez-Renau, Manfred Eckenfellner, Jan Svetlik, Herbert Hoi
Summary: Sibling cannibalism is found to be common in the Eurasian hoopoe, with a higher incidence in the Spanish population compared to the Austrian population. The higher occurrence of sibling cannibalism in the southern population may be due to more nestlings condemned to die. Factors such as hatching failure, food scarcity, and hatching asynchrony influence the likelihood and intensity of sibling cannibalism.
ZOOLOGICAL RESEARCH
(2022)
Article
Ornithology
Sara J. Miller, Cheryl R. Dykstra, Virginie Rolland, Melinda M. Simon, Jeffrey L. Hays, James C. Bednarz
Summary: In raptor species, hatching asynchrony leads to a size hierarchy among nestlings, which may facilitate brood reduction through sibling aggression-induced mortality. This study investigated the relationships among hatching asynchrony, sibling aggression, and nestling feeding rates in Red-shouldered Hawk nestlings. The study found that hatch rank was an important predictor of aggression exhibited by individual nestlings, but not a determinant of nestling food consumption rates.
JOURNAL OF RAPTOR RESEARCH
(2023)
Article
Multidisciplinary Sciences
Ethan P. Damron, Ashlee N. Smith Momcilovitch, Dane Jo, Mark C. Belk
Summary: Although multigenerational effects are common in nature, their impact on offspring fitness is often overlooked. This study found that parental body size and natal carcass size did not significantly affect the lifetime fitness of burying beetles, but the size of the carcass used for reproduction was a significant predictor of offspring fitness.
Article
Behavioral Sciences
Sage A. Madden, Molly T. McDermott, Rebecca J. Safran
Summary: This study manipulated brood size and parental costs in the wild barn swallow population to investigate the interactive effects of these manipulations on parent behavior. The researchers measured multiple aspects of parent behavior at the nest and away from the nest, including spatial foraging behavior tracked with GPS tags. The results showed no significant interactive effects of manipulated brood size and parental costs, but the foraging behavior of females was highly variable. The findings highlight the importance of considering foraging tactics alongside visitation rate in understanding parental investment.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2022)
Article
Physiology
Coline Marciau, David Costantini, Sophie Bestley, Olivia Hicks, Mark A. Hindell, Akiko Kato, Thierry Raclot, Cecile Ribout, Yan Ropert-Coudert, Frederic Angelier
Summary: In vertebrates, developmental conditions can have long-term effects on individual performance. It is increasingly recognized that oxidative stress could be one physiological mechanism connecting early-life experience to adult phenotype.
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Vincent A. Viblanc, Quentin Schull, Antoine Stier, Laureline Durand, Emilie Lefol, Jean-Patrice Robin, Sandrine Zahn, Pierre Bize, Francois Criscuolo
Article
Multidisciplinary Sciences
Pierre de Villemereuil, Anne Charmantier, Debora Arlt, Pierre Bize, Patricia Brekke, Lyanne Brouwer, Andrew Cockburn, Steeve D. Cote, F. Stephen Dobson, Simon R. Evans, Marco Festa-Bianchet, Marlene Gamelon, Sandra Hamel, Johann Hegelbach, Kurt Jerstad, Bart Kempenaers, Loeske E. B. Kruuk, Jouko Kumpula, Thomas Kvalnes, Andrew G. McAdam, S. Eryn McFarlane, Michael B. Morrissey, Tomas Part, Josephine M. Pemberton, Anna Qvarnstrom, Ole Wiggo Rostad, Julia Schroeder, Juan Carlos Senar, Ben C. Sheldon, Martijn van de Pol, Marcel E. Visser, Nathaniel T. Wheelwright, Jarle Tufto, Luis-Miguel Chevin
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Ecology
Alexandra H. M. Jebb, Daniel T. Blumstein, Pierre Bize, Julien G. A. Martin
Summary: The research found that in yellow-bellied marmots, body mass is under stabilizing viability selection in the early years of life, which transitions to positive directional selection as animals age. There were no significant differences in viability selection on body mass between sexes across age classes. The ability to escape predators varies across age classes.
ECOLOGY AND EVOLUTION
(2021)
Article
Biochemistry & Molecular Biology
Antoine Stier, Pierre Bize, Sylvie Massemin, Francois Criscuolo
Summary: This study investigated the effects of long-term DNP treatment on zebra finches, showing that DNP led to a mild increase in energy expenditure without significantly affecting body mass changes with age. Additionally, DNP did not significantly impact physical performance, oxidative damage, or telomere shortening with age.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2021)
Article
Ornithology
Laure Cauchard, Elise Isabella Macqueen, Rhona Lilley, Pierre Bize, Blandine Doligez
Summary: Our study reveals that variations in feeding rate, prey number, and size were influenced by individual factors (sex and age) and breeding decisions (brood size and timing of breeding). Feeding rate was found to be the best proxy for the total biomass delivered to the nestlings, regardless of the provisioning strategy adopted.
Article
Environmental Sciences
Segolene Humann-Guilleminot, Shirley Laurent, Pierre Bize, Alexandre Roulin, Gaetan Glauser, Fabrice Helfenstein
Summary: Monitoring the exposure of wildlife to neonicotinoid insecticides, especially in birds, is crucial for assessing potential negative impacts on biodiversity. This study found measurable concentrations of NNIs in feathers of both carnivorous Barn owl and insectivorous Alpine swift, indicating the need for further research on non-granivorous birds and their potential effects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Psychology, Biological
Tracey L. Hammer, Pierre Bize, Claire Saraux, Benoit Gineste, Jean-Patrice Robin, Rene Groscolas, Vincent A. Viblanc
Summary: This study examined the repeatability of alert distance and flight initiation distance in flightless king penguins and found moderate repeatability in flight initiation distance but not in alert distance.
Article
Endocrinology & Metabolism
Susanne Jenni-Eiermann, Juanita Olano Marin, Pierre Bize
Summary: Feather corticosterone values are used as an indicator of an individual's physiological state during feather growth in birds, but may not always accurately reflect exposure to energy-demanding or stressful conditions in nestlings. Some species are able to down-regulate their metabolism and potentially their CORT release during food scarcity. Research on altricial Alpine swift nestlings suggests that CORTf values are influenced by body condition and weather, and a meaningful interpretation should consider species-specific traits.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2022)
Article
Ornithology
Guillaume Emaresi, Pierre Bize, Alexandre Roulin
Summary: The allocation of resources in reproduction involves a trade-off with self-maintenance such as antioxidant response. Genetic and environmental factors influence the production of GSH in nestlings, and different colored individuals may have varying life-history strategies. Contrary to expectations, dark pheomelanic nestlings did not have higher levels of (ox)GSH compared to light ones.
JOURNAL OF AVIAN BIOLOGY
(2022)
Article
Ecology
Bibiana Montoya, Zsofia Toth, Adam Z. Lendvai, Antoine Stier, Francois Criscuolo, Sandrine Zahn, Pierre Bize
Summary: Hormonal pathways are crucial in shaping the growth, reproduction, and lifespan of animals. This study focuses on the role of insulin-like growth factor 1 (IGF-1) in modulating the life history of wild birds. Using a long-lived bird species, the Alpine swift, the study found that individuals with higher levels of IGF-1 had longer wings and shorter telomeres, suggesting a potential influence of IGF-1 on the growth-lifespan trade-off.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Behavioral Sciences
Camille Lemonnier, Pierre Bize, Rudy Boonstra, F. Stephen Dobson, Francois Criscuolo, Vincent A. Viblanc
Summary: Social interactions play a crucial role in shaping the dynamics of social systems and impacting the health and fitness of vertebrate species. Understanding the relationship between social interactions and physiological functions is key to comprehending the effects on individual well-being in both controlled and wild environments.
HORMONES AND BEHAVIOR
(2022)
Editorial Material
Behavioral Sciences
Anne Cillard, Tatiana Fuentes Rodriguez, Jean -Patrice Robin, Pierre Bize, Antoine Stier, Vincent A. Viblanc
Summary: This article reports a highly unusual observation of chick-chick feeding behavior in King penguins. Non-sibling chicks hatched at different times were observed, with the older chick feeding the younger one. This raises questions about the role of the early social environment in the acquisition of essential parenting skills in this species.
Article
Parasitology
Luca Ilahiane, Roger Colominas-Ciuro, Pierre Bize, Giovanni Boano, Marco Cucco, Mauro Ferri, Giulia Masoero, Christoph M. Meier, Marco Pavia, Gloria Ramello, Gary Voelker, Irene Pellegrino
Summary: This study investigates the relationships between swifts, their louse flies, and blood parasites. PCR screening of blood samples from 34 common swifts, 44 pallid swifts, and 45 alpine swifts, as well as morphological and COI barcode identification of 20 ectoparasitic louse flies, reveals no evidence of blood parasite infection in the tested swifts or identified louse fly species. These findings suggest that highly aerial swift species are unlikely to be infected by blood parasites through louse fly ectoparasites during nesting.
PARASITOLOGY RESEARCH
(2023)
Article
Multidisciplinary Sciences
Lucyna Halupka, Debora Arlt, Jere Tolvanen, Alexandre Millon, Pierre Bize, Peter Adamik, Pascal Albert, Wayne J. Arendt, Alexander V. Artemyev, Vittorio Baglione, Jerzy Banbura, Miroslawa Banbura, Emilio Barba, Robert T. Barrett, Peter H. Becker, Eugen Belskii, Mark Bolton, E. Keith Bowers, Joel Bried, Lyanne Brouwer, Monika Bukacinska, Dariusz Bukacinski, Lesley Bulluck, Kate F. Carstens, Ines Catry, Motti Charter, Anna Chernomorets, Rita Covas, Monika Czuchra, Donald C. Dearborn, Florentino de Lope, Adrian S. Di Giacomo, Valery C. Dombrovski, Hugh Drummond, Michael J. Dunn, Tapio Eeva, Louise M. Emmerson, Yngve Espmark, Juan A. Fargallo, Sergey I. Gashkov, Elena Yu. Golubova, Michael Griesser, Michael P. Harris, Jeffrey P. Hoover, Zuzanna Jagielio, Patrik Korell, Janusz Kloskowski, Walter D. Koenig, Heikki Kolunen, Magorzata Korczak-Abshire, Erkki Korpimaeki, Indrikis Krams, Milos Krist, Sonja C. Kruger, Boris D. Kuranov, Xavier Lambin, Michael P. Lombardo, Andrey Lyakhov, Alfonso Marzal, Anders P. Moller, Veronica C. Neves, Jan Tottrup Nielsen, Alexander Numerov, Beata Orlowska, Daniel Oro, Markus oest, Richard A. Phillips, Hannu Pietiaeinen, Vicente Polo, Jiri Porkert, Jaime Potti, Hannu Poeysae, Thierry Printemps, Jouke Prop, Petra Quillfeldt, Jaime A. Ramos, Pierre-Alain Ravussin, Robert N. Rosenfield, Alexandre Roulin, Dustin R. Rubenstein, Irina E. Samusenko, Denis A. Saunders, Michael Schaub, Juan C. Senar, Fabrizio Sergio, Tapio Solonen, Diana V. Solovyeva, Janusz Stepniewski, Paul M. Thompson, Marcin Tobolka, Janos Toeroek, Martijn van de Pol, Louis Vernooij, Marcel E. Visser, David F. Westneat, Nathaniel T. Wheelwright, Jaroslaw Wiacek, Karen L. Wiebe, Andrew G. Wood, Andrzej Wuczynski, Dariusz Wysocki, Marketa Zarybnicka, Antoni Margalida, Konrad Halupka
Summary: Climate change has different effects on the annual reproductive output of bird species, with some populations experiencing a decline in offspring production while others show an increase. The study finds that changes in ecological and life history traits, as well as temperature, play a role in these variations. Migratory and larger-bodied species tend to produce fewer offspring with increasing temperatures, while smaller-bodied, sedentary species tend to produce more.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Ecology
Heloise Moullec, Sophie Reichert, Pierre Bize
Summary: This study investigates the aging patterns in a wild bird species and finds gender and age-dependent variations in multiple traits. Most traits show both improvements and declines at different stages of aging. The rates and effects of aging differ between males and females. Selective disappearance and terminal effects also contribute to these variations.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Behavioral Sciences
Farrah N. Madison, Verner P. Bingman, Tom Smulders, Christine R. Lattin
Summary: Although research on the avian hippocampus has been limited, it is crucial for understanding its evolution and changes over time. The avian hippocampus plays important roles in spatial cognition as well as regulating anxiety, approach-avoidance behavior, and stress responses. Future research should focus on elucidating the cellular and molecular mechanisms, including endocrinology, to resolve outstanding questions about avian hippocampal function and organization.
HORMONES AND BEHAVIOR
(2024)
Article
Behavioral Sciences
Judith A. H. Smit, Riet Vooijs, Peter Lindenburg, Alexander T. Baugh, Wouter Halfwerk
Summary: This study investigates the effects of urbanization on hormone levels in tungara frogs and found that urban frogs and forest frogs have different endocrine phenotypes. Exposure to urban noise and light pollution led to an increase in testosterone and a decrease in corticosterone in urban frogs, while forest frogs showed no endocrine response to sensory pollutants. These results suggest that urbanization can modulate hormone levels and influence behavior in frogs.
HORMONES AND BEHAVIOR
(2024)
Article
Behavioral Sciences
Hannah D. Fulenwider, Yangmiao Zhang, Andrey E. Ryabinin
Summary: Social hierarchies have significant effects on overall health of individuals in animal groups, particularly the lowest-ranking individuals. Tube test can be used to determine social rank in male and female mice, and the complex interactions between social rank, sex, environment, and testing length influence peptide levels.
HORMONES AND BEHAVIOR
(2024)