Article
Behavioral Sciences
Stella A. Encel, Timothy M. Schaerf, Ashley J. W. Ward
Summary: This study examined the effects of an immune challenge, induced through exposure to bacterial lipopolysaccharides (LPS), on individual and social behavior in female guppies. The research found that healthy individuals showed a preference to associate with saline-injected fish rather than LPS-injected fish. In addition, LPS-injected fish exhibited greater dispersion and less collective behavior cohesion at the group level.
BEHAVIORAL ECOLOGY
(2023)
Article
Environmental Sciences
Jessica C. S. Rabelo, Alex L. Hanusch, Lazaro Wender O. de Jesus, Lorena A. Mesquita, Fernanda C. Franco, Raquel A. Silva, Simone M. T. Saboia-Morais
Summary: The study showed that exposure to the cyanotoxin cylindrospermopsin (CYN) led to genotoxic effects in the brain, liver, blood cells, and erythrocytes of P. reticulata. The findings suggest potential harm of CYN to aquatic organisms and human health.
ENVIRONMENTAL TOXICOLOGY
(2021)
Article
Multidisciplinary Sciences
Stephanie Fong, Bjorn Rogell, Mirjam Amcoff, Alexander Kotrschal, Wouter van der Bijl, Severine D. Buechel, Niclas Kolm
Summary: Experimental evidence from artificial selection in guppies supports the mosaic brain evolution hypothesis, suggesting that different brain regions can evolve independently, potentially playing a crucial role in cognitive evolution.
Article
Biotechnology & Applied Microbiology
Xiuxia Chen, Hui Gong, Hongshu Chi, Binfu Xu, Zaiyu Zheng, Yulin Bai
Summary: The study reveals that guppies exposed to seawater can adapt to various salinity changes and shows significant gene expression changes in their gills, particularly in processes related to ion transport, metabolism, and immunity. Oxidative phosphorylation plays a crucial role in osmoregulation, while pathways involving ER-mediated phagocytosis, starch and sucrose metabolism, and cytokine-cytokine receptor interaction are downregulated. The study emphasizes the importance of gene expression in guppy adaptation to seawater, shedding light on osmotic regulation, metabolism, and immune response.
MARINE BIOTECHNOLOGY
(2021)
Article
Ecology
Mingjia Xu, Chunnuan Zhang, Qian Qi, Renpeng Wang, Shibo Zhang, Runkun Yan, Bin Li, Shengnan Li
Summary: The study aimed to investigate the impact of salinity on anxiety behavior and liver antioxidant capacity in guppies. Guppies were exposed to different salinities and their behavior and antioxidant enzyme activity were analyzed. Results showed that high salinity enhanced anxiety behavior in guppies and increased the activity of antioxidant enzymes. Drastic changes in salinity should be avoided during culture.
Article
Environmental Sciences
Xuefu Li, Shaoguo Ru, Hua Tian, Suqiu Zhang, Zhenxian Lin, Ming Gao, Jun Wang
Summary: The co-exposure of copper and 2,2'-dithiobis-pyridine ((PS)(2)) resulted in significant reproductive toxicity in male guppies, causing decreased testosterone levels, spermatozoon apoptosis and necrosis, reduced sexual interest, and ultimately reproductive failure. This study highlights the potential ecological risks associated with the widespread use of metal pyrithiones in antifouling paints.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Ecology
Mayuko Kawamoto, Yuu Ishii, Masakado Kawata
Summary: This study investigates the genetic basis of orange spot formation in guppies, a model organism for sexual selection research. Through RNA-seq analysis, it was found that orange spots in male guppies might be formed by secondary differentiation of xanthophores induced by specific signaling pathways. The study also identified candidate genes associated with the areas and saturation levels of orange spots, providing insights into the genetic and cellular regulatory mechanisms underlying sexual ornamentation.
BMC ECOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Josephine R. Paris, James R. Whiting, Mitchel J. Daniel, Joan Ferrer Obiol, Paul J. Parsons, Mijke J. van der Zee, Christopher W. Wheat, Kimberly A. Hughes, Bonnie A. Fraser
Summary: Extreme colour pattern variation in male Trinidadian guppies is influenced by both natural selection and sexual selection. This study found that colour pattern is associated with genetic diversity on an autosome, rather than a 'supergene' on the sex chromosome.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
K. J. G. Diaz-Resendiz, A. T. Hermosillo-Escobedo, G. H. Ventura-Ramon, G. A. Toledo-Ibarra, D. A. Giron-Perez, A. Y. Bueno-Duran, M. I. Giron-Perez
Summary: This study evaluated and compared the effects of pesticides Temephos and spinosad on leukocytes in guppy fish. The results showed that Temephos caused leukocyte death, while spinosad did not. This indicates that Temephos has chronic effects on immune response cells.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH
(2022)
Article
Environmental Sciences
Lunara Kenida Lessa Martins, Joao Marcos De Lima-Faria, Lucas Nunes Guimaraes, Victoria Costa da Silva, Paulo Cesar Moreira, Simone Maria Teixeira de Saboia-Morais
Summary: This study investigates the interaction between citrate functionalized iron oxide nanoparticles (IONPs) and glyphosate-based herbicides in water and their effects on the liver of female Poecilia reticulata. The results indicate that the association of herbicides with IONPs induces liver damage and inflammatory responses, leading to cellular detoxification processes and immune responses. The damage is time and concentration dependent, increasing with exposure time and glyphosate concentration.
ENVIRONMENTAL TOXICOLOGY
(2022)
Article
Environmental Sciences
Nicholas Silvestre de Souza Trigueiro, Bruno Bastos Gonsalves, Felipe Cirqueira Dias, Emilia Celma de Oliveira Lima, Thiago Lopes Rocha, Simone Maria Teixeira Saboia-Morais
Summary: The co-exposure of iron oxide nanoparticles and glyphosate-based herbicide induced genotoxicity and mutagenicity in freshwater fish, with effects becoming more pronounced over time.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Serena Ricci, Maurizio Lazzari, Maria Gabriella Maurizii, Valeria Franceschini, Liliana Milani, Pietro Cacialli
Summary: CLASP2 plays an important role in microtubule dynamics and chromosome movement. While its role in germ cell development has been well studied in Drosophila and mice, its role in fish germ cell differentiation remains unclear. This study using zebrafish and guppy models suggests a potential role for CLASP2 in the later stage of spermiogenesis in fish.
Article
Behavioral Sciences
Anna Li, Jean M. L. Richardson, F. Helen Rodd
Summary: Research has shown that for guppies, shoaling can reduce the number of successful attacks by ambush predators, and the optimal strategy is to form shoals only when an attack is imminent. However, shoaling can also lead to increased competition for resources, transmission of parasites, and increased visibility to predators.
BEHAVIORAL ECOLOGY
(2022)
Article
Ecology
Pamela M. Prentice, Alex Thornton, Niclas Kolm, Alastair J. Wilson
Summary: Individual variation in cognitive traits is necessary for natural selection and may result from complex interactions between genetic and environmental factors.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2023)
Article
Geriatrics & Gerontology
Moeno Imai, Takamasa Mizoguchi, Meng Wang, Yingyi Li, Yoshinori Hasegawa, Ayako Tonoki, Motoyuki Itoh
Summary: Aging is a major risk factor for chronic diseases, and small teleost fish have been used as animal models to study aging due to the similarities in their genetic structures and organs with humans. This study investigated the age-related changes in metabolism, activity, and gene expression in guppies. The findings suggest that guppies experience a decline in metabolic rate and activity from an earlier age compared to mice, and some gene expression changes in aged guppy brains are consistent with aged mammals.
EXPERIMENTAL GERONTOLOGY
(2022)
Article
Behavioral Sciences
James A. Klarevas-Irby, Damien R. Farine
Summary: Little is known about how animals overcome temporal constraints on movement during dispersal. This study used GPS tracking of vulturine guineafowl and found that dispersers showed the greatest increase in movement at the same times of day when they moved the most prior to dispersal. These findings suggest that individuals face the same ecological constraints during dispersal as they do in daily life and achieve large displacements by maximizing movement when conditions are most favorable.
Article
Behavioral Sciences
Simone Ciaralli, Martina Esposito, Stefano Francesconi, Daniela Muzzicato, Marco Gamba, Matteo Dal Zotto, Daniela Campobello
Summary: Male cuckoos may transfer nest location information to females as a nonmaterial nuptial gift through specific postures and behaviors, potentially influencing mating choices of female cuckoos.
Article
Behavioral Sciences
Anne E. Aulsebrook, Rowan Jacques-Hamilton, Bart Kempenaers
Summary: Accelerometry and machine learning have been used to quantify mating behaviors of captive male ruffs. Different machine learning methods were compared and evaluated for their classification performance. The study highlights the challenges and potential pitfalls in classifying mating behaviors using accelerometry and provides recommendations and considerations for future research.
Article
Behavioral Sciences
Maria G. Smith, Joshua B. LaPergola, Christina Riehl
Summary: This study analyzed individual contributions to parental care in the greater ani bird and found that workload inequality varied between groups of two and three pairs. However, there was no clear evidence of division of labour within the groups, suggesting individual differences in overall work performed.
Article
Behavioral Sciences
Noah M. T. Smith, Reuven Dukas
Summary: Winner and loser effects are observed in many animals, and recent experiments suggest that they may also occur in humans. In two experiments involving video games and reading comprehension, participants who won in the first phase performed significantly better in the second phase compared to those who lost. The effect size was larger in the video game experiment, and men and women showed similar magnitudes of winner and loser effects.
Article
Behavioral Sciences
Bianca J. L. Marcellino, Peri Yee, Shannon J. Mccauley, Rosalind L. Murray
Summary: This study examines the trade-off between mating effort and thermoregulatory behavior in dragonflies in response to temperature changes, and investigates the effect of wing melanin on these behaviors. The results indicate that as temperature increases, dragonflies reduce their mating effort and increase their thermoregulatory behavior.
Article
Behavioral Sciences
Rafael Rios Moura, Paulo Inacio Prado, Joao Vasconcellos-Neto
Summary: This study examined the escape behavior and decision-making of Aglaoctenus castaneus spiders on different substrates. It was found that spiders inhabiting injurious substrates displayed shorter flight initiation distances and lower sensitivity to predators.
Article
Behavioral Sciences
Luigi Baciadonna, Cwyn Solvi, Francesca Terranova, Camilla Godi, Cristina Pilenga, Livio Favaro
Summary: In this study, it was found that African penguins could use ventral dot patterns to recognize their lifelong partner and nonpartner colonymates. This challenges the previous assumption of limited visual involvement in penguin communication, highlighting the complex and flexible recognition process in birds.
Article
Behavioral Sciences
Nick A. R. Jones, Jade Newton-Youens, Joachim G. Frommen
Summary: Environmental conditions, particularly temperature, have a significant impact on animal behavior. This study focused on aggression in Neolamprologus pulcher fish and found that aggression rates increased with temperature at lower levels, but decreased after reaching a peak. Additionally, the influence of high temperatures on aggression changed over time during the trials. These findings provide a more comprehensive understanding of the short-term effects of temperature on aggression and highlight the importance of considering non-linear changes in thermal performance.
Article
Behavioral Sciences
Bruno Herlander Martins, Andrea Soriano-Redondo, Aldina M. A. Franco, Ines Carry
Summary: Human activities have affected the availability of resources for wildlife, particularly through the provision of anthropogenic food subsidies at landfill sites. This study explores the influence of age on landfill attendance and foraging behavior in white storks. Adult storks visit landfills more frequently and show dominance over juveniles in food acquisition. Juveniles have limited access to landfill resources and are forced to use lower quality areas.