Kime, Nicole M Goutte, Sandra Ryan, Michael J
Published in
Hormones and behavior
Arginine vasotocin (AVT) and its homolog arginine vasopressin (AVP) modulate social behavior, including social communication. In anuran amphibians, male-male competition and female mate choice rely heavily on acoustic signaling. Behavioral experiments show that AVT influences motivation to call and vocal production. It may also influence how males ...
Wirobski, G Range, F Schaebs, F S Palme, R Deschner, T Marshall-Pescini, S
Published in
Hormones and behavior
Dogs are exceptionally well adapted to life close to humans, and alterations in their endocrine system during the domestication process may be an underlying mechanism. In particular, it has been suggested that low circulating cortisol concentrations in conjunction with simultaneously high oxytocin concentrations may have resulted in dogs' increased...
Antunes, Diogo F Reyes-Contreras, Maria Glauser, Gaétan Taborsky, Barbara
Published in
Hormones and behavior
In cooperatively breeding cichlid fish, the early social environment has lifelong effects on the offspring's behaviour, life-history trajectories and brain gene expression. Here, we asked whether the presence or absence of parents and subordinate helpers during early life also shapes fluctuating levels of cortisol, the major stress hormone in the c...
Whelan, Shannon Hatch, Scott A Benowitz-Fredericks, Z M Parenteau, Charline Chastel, Olivier Elliott, Kyle H
Published in
Hormones and behavior
Current food supply is a major driver of timing of breeding in income-breeding animals, likely because increased net energy balance directly increases reproductive hormones and advances breeding. In capital breeders, increased net energy balance increases energy reserves, which eventually leads to improved reproductive readiness and earlier breedin...
Henriksen, Rie Holm, Ann-Charlotte Svensson Jensen, Per
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Hormones and behavior
Birds use contact incubation to warm their eggs above ambient temperature required for embryonic development. In contrast, birds in the industry as well as many birds in breeding programs and scientific studies are incubated in conventional incubators that warm eggs via circulating warm air. This means that contact incubated eggs have different the...
Cheng, Leveda Lucchesi, Stefano Mundry, Roger Samuni, Liran Deschner, Tobias Surbeck, Martin
Published in
Hormones and behavior
Intergroup competition is a widespread phenomenon across taxa and groups typically compete over access to limited resources, such as food and mates. Such competition may be quantified by changes in individuals' behavioral and physiological status in response to intergroup encounters (IGEs). Bonobos, one of our closest living relatives, are often re...
Bradley, Ellen R Tai, Marlene Hankin, Michael Woolley, Joshua D
Published in
Hormones and behavior
Mentalizing, the ability to infer other people's intentions and emotions, is commonly impaired in schizophrenia and may represent an endophenotype. The hypothalamic neuropeptide oxytocin has been shown to improve mentalizing in men with schizophrenia, but its effects in women remain unclear. Given sex differences in the clinical manifestations of s...
Wilson, Rachel C LeMaster, Michael P Lutterschmidt, Deborah I
Published in
Hormones and behavior
Despite the established dichotomy between investment in either reproduction or self-maintenance, a hormonal mechanism that influences an organism's decision to prioritize these behaviors remains elusive. The protein hormone leptin is a likely candidate because it is secreted from adipocytes in proportion to the amount of stored fat in numerous spec...
Singh, D Reed, S M Kimmitt, A A Alford, K A Stricker, C A Polly, P D Ketterson, E D
Published in
Hormones and behavior
Many seasonally breeding animals exhibit a threshold day length (critical photoperiod; CPP) for gonadal growth, and populations breeding at higher latitudes typically have a higher CPP. Much less is known about latitudinal variation in CPP in migratory population that winter away from their breeding range and must time their reproduction to match f...
Mentesana, Lucia Adreani, Nicolas M
Published in
Hormones and behavior
Aerobically demanding activities like aggression can lead to an elevated oxidative metabolism affecting the concentration of pro-oxidant and antioxidant compounds and can result in an overall perturbation of the oxidative status. Aggression may also alter the oxidative status indirectly through an increase in testosterone and progesterone concentra...
