Other changes prior to migration often include reorganisation of body composition to reduce
maintenance costs for tissues not necessary during endurance exercise (Piersma et al …

Telomere length (TL) shortens with age but telomere dynamics can relate to fitness
components independent of age. Immune function often relates to such fitness components …

Many songbirds migrate twice a year to exploit seasonally available resources. These
journeys are energetically demanding and energy reserves of these small birds are limited …

Estrogenic endocrine disrupting compounds (EEDCs) can cause alterations in sexual
development and reproductive function of fish. Growing evidence suggests that EEDCs can …

Oxidative status and immune function are energy-demanding traits closely linked to diet
composition, particularly resource availability and nutritional value. In seasonal …

Telomeres are protective, nucleoprotein structures at the end of chromosomes that have
been associated with lifespan across taxa. However, the extent to which these associations …

Non-lethal infections are common in free-living animals and the associated sickness
behaviours can impact crucial life-history trade-offs. However, little is known about the …

Predators affect the survival of developing young by eating them. More recently, the fear of
being eaten has been uncovered as a powerful driver of offspring survival reducing recruited …

Climate change is driving changes in fire frequency and intensity, making it more urgent for
conservation managers to understand how species and ecosystems respond. In tropical …

Highlights•Nestling mortality before day 12 was entirely due to starvation.•Mortality after day
12 was mainly due to predation.•Both size and immune function influenced predation risk in …