...Juan D. Zuluaga; Raymond M. Danner ABSTRACT Using thermography and behavioral analyses, we found that heat exchange and thermoregulatory behaviors changed seasonally in chipping sparrows ( Spizella passerina ). Studies on seasonal acclimatization in birds have primarily involved metabolic...

... to unveil the neural organization of natural behaviors has grown considerably during the last decade. In this Perspective, we provide an account of the roots and strategies that led to the present state of neuroethology in the Southern Cone of America, with a forward-looking vision of its role in education...

... and ventricle mass ( r =0.285, P =0.015). Overall, our results indicate that selection for a behavioral trait can yield large changes in behavior without proportional modifications to underlying morphological or physiological traits. * Author for correspondence ( tgarland@ucr.edu ) Competing...

...Alexandra Venuto; Stacey Thibodeau-Beganny; Josef G. Trapani; Timothy Erickson ABSTRACT Larval zebrafish achieve neutral buoyancy by swimming up to the surface and taking in air through their mouths to inflate their swim bladders. We define this behavior as ‘surfacing’. Little is known about...

... and environmental conditions that may influence behavior and locomotion. This article considers how study setting influences the selection of animals, behaviors and methodologies for studying animal motion. We highlight the benefits of both field- and laboratory-based studies and discuss how recent work leverages...

...Emily J. Ray; Julie M. Butler; Karen P. Maruska ABSTRACT Parental care has evolved several times and is present across taxa. Parental care behaviors, such as food provisioning and protection, are critical for offspring success. However, infanticide can co-exist with parental care in the same...

...Ralph L. Albuquerque; Peter A. Zani; Theodore Garland ABSTRACT The standard paradigm of organismal biology views lower-level traits (e.g. aspects of physiology) as determining organismal performance ability (e.g. maximal sprint speed), which in turn constrains behavior (e.g. social interactions...

...Joshua J. Faber-Hammond; Suzy C. P. Renn ABSTRACT Parental care in Astatotilapia burtoni entails females protecting eggs and developing fry in a specialized buccal cavity in the mouth. During this mouthbrooding behavior, which can last 2–3 weeks, mothers undergo voluntary fasting accompanied...

... interests The authors declare no competing or financial interests. 16 9 2022 18 1 2023 © 2023. Published by The Company of Biologists Ltd 2023 Summary: Selective breeding for high levels of voluntary wheel-running behavior in house mice alters the gut microbiota composition...

... mechanism for mitigating oxygen shortages is behavior – moving to cooler, more oxygenated or faster flowing microhabitats. Whether stream insects can make meaningful choices, however, depends on: (i) how temperature, oxygen and flow vary at microspatial scales and (ii) the ability of insects to sense...

... compounds associated with the loss of gustatory receptors, and increased appetite for host fatty acids. Bitter receptor Host plant specialization Ecological adaptation Chemosensation Gustatory receptors Behavior Noni Drosophila sechellia National Institutes of Health http...

... tank test. We found that MK-801 caused a general decrease in predator-avoidance/anxiety-like behavior (bottom dwelling) and an increase in locomotion in male fish, but not females. Our simple, easy to prepare and individually tailored gelatin-based feed enables precisely dosed, non-invasive drug...

... have poor spatial resolution compared with thermal imaging cameras. Nevertheless, behavioral studies occasionally suggest pits may have better resolution than predicted by biophysical models, indicating that processing in the central nervous system may improve imaging. To estimate the spatial...

... electrotaxis). This planarian behavior was first described by Raymond Pearl more than a century ago. However, planarian electrotaxis has received little attention since, and the underlying mechanisms and evolutionary significance remain unknown. To close this knowledge gap, we developed an apparatus...

...Jackson R. Phillips; Amanda E. Hewes; Molly C. Womack; Kurt Schwenk ABSTRACT Frog larvae (tadpoles) undergo many physiological, morphological and behavioral transformations throughout development before metamorphosing into their adult form. The surface tension of water prevents small tadpoles from...

... are critical for functional sensorimotor development in zebrafish. Cannabinoid Motor Sensory Locomotor Behavior To exert its wide array of physiological influences, the endocannabinoid system (eCS) depends on the signaling of endogenous cannabinoid compounds. The endocannabinoids (eCBs) known...

...-hydroxykynurenine (3-OHK) yellow wing coloration from non-3-OHK yellow wing coloration found in other heliconiines. These results provide some of the first behavioral evidence for female H. erato UV color discrimination in the context of foraging, lending support to the hypothesis ( Briscoe et al., 2010...

... an unexpected role in contamination of aquatic ecosystems that receive wastewater discharges. Here, we show that methamphetamine, considered as one of the most important global health threats, causes addiction and behavior alteration of brown trout Salmo trutta at environmentally relevant concentrations (1 µg l...

...Valeria Silva; Angelina Palacios-Muñoz; Zeynep Okray; Karen L. Adair; Scott Waddell; Angela E. Douglas; John Ewer ABSTRACT The gut microbiome has been proposed to influence diverse behavioral traits of animals, although the experimental evidence is limited and often contradictory. Here, we made use...

..., the availability of wider-field tracking technology has allowed for high-throughput measurements of voluntary behavior, an approach that produces large volumes of data. Here, we show how these data allow for measures of inter-individual variation that are necessary to evaluate how performance depends on other...