growth
- Telomere dynamics from hatching to sexual maturity and maternal effects in the ‘multivariate egg’
Highlighted Article: Antagonistic effects of maternal antibodies and egg testosterone modulate offspring telomere length over growth in zebra finch fledglings.
- High-lipid prey reduce juvenile survivorship and delay egg laying in a small linyphiid spider Hylyphantes graminicola
Summary: Feeding on high-lipid prey reduces survival before maturation and delays egg laying among females in a small, sit-and-wait, sheet web-building spider, Hylyphantes graminicola.
- Rapid-warming tolerance correlates with tolerance to slow warming but not growth at non-optimal temperatures in zebrafish
Summary: We show that critical thermal maximum (CTmax), measured at a rapid warming rate, is a relevant proxy for more prolonged thermal challenges, but cannot be used to predict growth rate in zebrafish.
- Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark (Carcharhinus melanopterus) neonates
Summary: Thermal tolerance is associated with hypoxia tolerance in blacktip reef shark (Carcharhinus melanopterus) neonates. Both tolerance traits change with thermal acclimation, but aerobic scope and growth rates do not.
- Oxidative status and telomere length are related to somatic and physiological maturation in chicks of European starlings (Sturnus vulgaris)
Summary: Physiological maturation in birds, prior to fledging may occur at the expense of telomere length when growth occurs under sub-optimal environmental conditions.
- Divergent mechanisms for regulating growth and development after imaginal disc damage in the tobacco hornworm, Manduca sexta
Highlighted Article: Manduca sexta is proposed as a new model to study the effects of imaginal disc damage on developmental timing. After disc damage, critical weight is altered although growth rate is not, and juvenile hormone appears uncoupled from critical mass.
- Ontogenetic scaling of pelvic limb muscles, tendons and locomotor economy in the ostrich (Struthio camelus)
Summary: The ontogenetic scaling of muscle–tendon morphology and tendon material properties suggests maintained or relatively increased muscle force generation, increased elastic energy storage and locomotor economy in adult versus juvenile ostriches.
- Repeated stimulation of the pituitary–adrenal axis alters offspring phenotype of a wild passerine
Summary: Developmental stress has negative effects on pied flycatcher offspring growth and physiology, but may have short-term benefits on performance by enhancing antipredator behaviour.
- The importance of incorporating natural thermal variation when evaluating physiological performance in wild species
Summary: Physiological responses associated with stable temperatures are distinct from those in thermally variable environments and we need to understand these differences to truly predict how animals will respond to climate change.
- Growth hormone transgenesis in coho salmon disrupts muscle immune function impacting cross-talk with growth systems
Summary: Growth hormone transgenesis in coho salmon alters the immune response of skeletal muscle, leading to a disruption in normal cross-talk between the growth and immune systems.