Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate

During periods of high energy demand an animal may be constrained by a physiological maximum to its energy intake rate. Predictions by allometric equations describing this maximum for endotherms were significantly surpassed during a few recent laboratory experiments on birds and mammals, being given access to food 24 h day^-1. How relevant this is in the field remains to be assessed. We predicted that Bewick’s swans Cygnus columbianus bewickii might surpass this maximum during stopover on their migration. We determined intake rate by measuring initial and final biomass density, and dividing the biomass difference by the feeding time required to reach this difference. This feeding time was given by the functional response. After conversion to daily energy intake rates, these exceeded the previously assumed maximum on two of the three stopover sites studied. The exception was a stopover site where daily foraging time was limited by the tidal cycle. Our study confirms that intake rates may exceed the formerly generally supposed maximum under natural conditions when foraging is possible day and night.

Trace [book of poetry]

This collection of prose poetry creates a naturally intimate world while, at the same time, fluidly examining complex connections between popular and high culture.

Exhumed [book of poetry]

Unpredictable and boisterously entertaining, Cassandra Atherton’s Exhumed is a collection of interconnected prose poems exploring the reanimation of canonical texts against a backdrop of popular culture references: William Carlos Williams, Nabokov, Stevie Smith and Emily Dickinson are paired with ‘Happy Meals’, Hill’s Hoists, Bonds t-shirts and the Moonee Valley Bistro. Divided into two parts – ‘Inter’ with its play on intertexts and ‘Disinter’ where the references are unearthed, these prose poems are fractured moments centred on love, betrayal, abandonment and death. Atherton’s appeals to l’humour noir and the politicisation of the poet’s private spaces make for an exhilarating and intoxicating read.