Winter is a particularly difficult time to breed and survive. Animals monitor day length
(photoperiod) to engage seasonally appropriate adaptations in anticipation of harsh winter …

The ingestion of lead (Pb) shot pellets is a well-known cause of avian mortality, but exposure
of birds to Pb may have other sublethal effects that can affect population sustainability. One …

Once-abundant aerial insectivores, such as the Tree Swallow (Tachycineta bicolor), have
declined steadily in the past several decades, making it imperative to understand all aspects …

We investigated seasonality of gender differences in the patterns of flea infestation in nine
rodent species to test if sex-biased parasitism in terms of mean abundance, species …

The avian spleen has been frequently used in studies of avian ecology, parasitology, and
evolution to infer immune system strength in birds. Traditionally, it has been assumed that a …

A central hypothesis of eco-immunology proposes trade-offs between immune defences and
competing physiological and behavioural processes, leading to immunological variation …

We examine the role of host seasonal breeding, host seasonal social aggregation and
partial immunity in affecting wildlife disease dynamics, focusing on the dynamics of house …

The allocation into T–cell–mediated immunocompetence was experimentally increased in
68 out of 139 nestlings by supplementary feeding methionine to half of the nestlings in 15 …

In this review, I focus on three key questions in avian comparative immunoecology: variation
in immune responses in relation to sex; latitude (and pace-of-life); and the annual cycle. I …

The phenology of spring migration depends on the severity of the preceding winter and
approaching spring. This severity can be quantified using the North Atlantic Oscillation …