Preprints
Filtering by Subject: Integrative Biology
Larval cannibalism in Phyllobates poison frogs
Published: 2023-03-02
Subjects: Biology, Integrative Biology, Life Sciences
Cannibalistic behaviour between tadpoles of dendrobatoid poison frogs has been observed in several species with complex parental care dynamics, leading to the idea that it may have played a role in the evolution of parental care. However, the existence or characteristics of this behaviour remain largely unknown beyond a handful of well-studied species. I report direct and indirect observations of [...]
Kinematics and behaviour in fish escape responses: guidelines for conducting, analysing, and reporting experiments
Published: 2023-02-16
Subjects: Biology, Integrative Biology, Life Sciences
Work carried out since the late 70s has provided key insights into the comparative biomechanics, kinematics, behaviour, and neurobiology of fish escape responses. With environmental change expected to affect the physiology and biomechanics of aquatic ectotherms, there is a growing interest in understanding how environmental stressors impact the swimming performance and behaviour of fishes during [...]
Why do some fish grow faster than others?
Published: 2023-01-23
Subjects: Ecology and Evolutionary Biology, Integrative Biology, Physiology
All animals must acquire food to grow, but there is a vast diversity in how different species and even different individuals approach and achieve this task. Individuals within a species appear to fall along a bold-shy continuum, whereby some fish acquire food aggressively and with seemingly high risk, while others appear more submissive and opportunistic. Greater food consumption generally [...]
Developmental environments do not affect thermal physiological traits in reptiles: An experimental test and meta-analysis
Published: 2023-01-18
Subjects: Evolution, Integrative Biology, Other Ecology and Evolutionary Biology
On a global scale, organisms face significant challenges due to climate change and anthropogenic disturbance. In many ectotherms, developmental and physiological processes are sensitive to changes in temperature and resources. Developmental plasticity in thermal physiology may provide adaptive advantages to environmental extremes if early environmental conditions are predictive of late-life [...]
Inferring the identifying features underlying association preferences in wild mixed species parrot groups
Published: 2022-09-16
Subjects: Biology, Integrative Biology, Life Sciences
Many animals participate in mixed-species aggregations for a variety of reasons, leading to species specific differences in benefits and costs, resulting in a variety of community assemblage patterns and dynamics based on what information individuals use to make joining decisions. Current research tends to focus specifically on "species" as a defining factor affecting joining decisions. However, [...]
Behavioural ecology at the spatial-social interface
Published: 2022-02-11
Subjects: Biology, Integrative Biology, Life Sciences
Spatial and social behaviour are fundamental aspects of an animal’s biology, and the social and spatial environments are indelibly linked through mutual causes and shared consequences. Behavioural variation at the “spatial-social interface”, which we define as the intersection of social and spatial aspects of individuals’ phenotypes and environments, has implications for ecological and [...]
Latitudinal but not elevational variation in blood glucose level is linked to life history across passerine birds
Published: 2022-01-13
Subjects: Animal Sciences, Biology, Comparative and Evolutionary Physiology, Ecology and Evolutionary Biology, Evolution, Integrative Biology, Life Sciences, Physiology, Zoology
Macrophysiological research is vital to our understanding of mechanisms underpinning global life history variation and adaptation under diverse environments. Birds represent an important model taxon in this regard, yet our knowledge is limited to only a few physiological traits, mostly studied in temperate and Neotropical species. Here, we examined latitudinal and elevational variation in an [...]
Ecogeography of group size suggests differences in drivers of sociality among cooperatively breeding fairywrens
Published: 2022-01-05
Subjects: Behavior and Ethology, Biology, Ecology and Evolutionary Biology, Evolution, Integrative Biology, Life Sciences
Cooperatively breeding species exhibit a range of social behaviors associated with different costs and benefits to group-living, often in association with different environmental conditions. For example, species in which collective-care of offspring reduces the cost of reproduction are more common in harsh environments (true cooperative breeding), while species that collectively defend resources [...]
Bothersome burrowers: tracking gopher (Thomomys bottae) time-averaging in a late-Holocene site in California
Published: 2021-12-04
Subjects: Biology, Integrative Biology, Life Sciences
Understanding the taphonomic biases affecting fossil deposits is necessary in order to extract their true ecological signals. In terrestrial sites, the mixing of fossil material by mammalian bioturbators can substantially increase time-averaging, obscuring or even erasing stratification. In particular, pocket gophers (Thomomys sp.) are known to burrow in Holocene sites and thereby complicate the [...]
Mitochondria as the powerhouses of sexual selection: testing mechanistic links between development, cellular respiration, and bird song
Published: 2021-12-04
Subjects: Biology, Integrative Biology, Life Sciences
Although the influence of developmental conditions on the expression of sexually selected traits is established, the physiological mechanisms that modulate such effects remain a matter of intense debate. Here, we test the role of the developmental environment in shaping adult mitochondrial function and link mitochondrial function to expression of a sexually selected trait in males (bird song). We [...]
The role of sexual isolation during rapid ecological divergence: evidence for a new dimension of isolation in Rhagoletis pomonella
Published: 2021-11-16
Subjects: Biology, Integrative Biology, Life Sciences
The pace of divergence and likelihood of complete speciation may depend how and when different types of reproductive barriers evolve. After initial reproductive barriers evolve, questions remain about how subsequently evolving barriers may facilitate additional divergence and potential speciation. We tested for the presence of sexual isolation (reduced mating between populations due to divergent [...]
Functions for simulating data and designing studies of physiological flexibility in the acute glucocorticoid response to stressors.
Published: 2021-09-16
Subjects: Biology, Ecology and Evolutionary Biology, Endocrinology, Integrative Biology, Life Sciences, Physiology
Wild animals often experience unpredictable challenges that demand rapid and flexible responses. The glucocorticoid mediated stress response is one of the major systems that allows vertebrates to rapidly adjust their physiology and behavior. Given its role in responding to challenges, evolutionary physiologists have focused on the consequences of between-individual and, more recently, [...]
Unreciprocated allogrooming hierarchies in a population of wild group-living mammals
Published: 2021-08-06
Subjects: Biology, Integrative Biology, Life Sciences
Allogrooming can relate to social status in mammalian societies, and thus, be used to infer social structure. This relationship has previously been investigated by examining an individual’s dominance rank and their total amount of allogrooming. This, however, does not account for the identity of allogrooming partners. We applied a novel approach, calculating the linearity and steepness of [...]
Day and night camera trap video is effective for identifying wild Asian elephants
Published: 2021-07-24
Subjects: Biodiversity, Biology, Comparative Psychology, Integrative Biology, Life Sciences, Psychology, Social and Behavioral Sciences
Camera traps provide a virtual window into the natural world of wild animals, as they provide a noninvasive way to capture anatomical and behavioral information. Regular monitoring of wild populations through the collection of behavioral and demographic data is critical for the conservation of endangered species like the Asian elephant (Elephas maximus). Identifying individual elephants can [...]
Quantifying the dynamics of nearly 100 years of dominance hierarchy research
Published: 2021-07-19
Subjects: Biology, Integrative Biology, Life Sciences
Dominance hierarchies have been studied for almost 100 years. A science of science approach can help provide high-level insight into how the dynamics of dominance hierarchy research have shifted or been maintained over this long timescale. To summarize these general patterns, I extracted publication metadata using a Google Scholar search of "dominance hierarchy, resulting in over 26,000 [...]