Animals often need to signal to attract mates and behavioural signalling may impose
substantial energetic and fitness costs to signallers. Consequently, individuals often …

Lipids and carbohydrates have long been measured in organisms with various techniques.
The microseparation and calorimetric method for quantifying lipids with a vanillin reagent …

The terminal investment hypothesis proposes that decreased expectation of future
reproduction (eg, arising from a threat to survival) should precipitate increased investment in …

Circadian rhythms are ubiquitous in nature and endogenous circadian clocks drive the daily
expression of many fitness-related behaviors. However, little is known about whether such …

Dietary differences are often observed among generalist herbivores co‐occurring in the
same community. However, the factors underlying the differences remain poorly understood …

Acoustic communication is one of the most well-known behavioural traits of the Orthoptera.
Orthopteran insects and the sounds they produce are both extremely diverse, and species …

Sexual displays of acoustically signalling insects are used in the context of mate attraction
and mate choice. While energetic investment in sound production can increase the …

Evolutionary loss of sexual signals is widespread. Examining the consequences for
behaviours associated with such signals can provide insight into factors promoting or …

The immunocompetence handicap hypothesis (ICHH) postulates that testosterone supports
the development of secondary sexual traits while simultaneously suppressing immune …

Sexual ornaments are often considered honest signals of quality because potential costs or
constraints prevent their display by low-quality individuals. Testing for potential physiological …