• Publications
  • Influence
Global Patterns and Drivers of Avian Extinctions at the Species and Subspecies Level
Birds have long fascinated scientists and travellers, so their distribution and abundance through time have been better documented than those of other organisms. Many bird species are known to haveExpand
  • 98
  • 3
  • PDF
Flexibility but no coordination of visits in provisioning riflemen
Parental care strategies occupy a continuum from fixed investments that are consistent across contexts to flexible behaviour that largely depends on external social and environmental cues.Expand
  • 9
  • PDF
Sex Allocation Patterns across Cooperatively Breeding Birds Do Not Support Predictions of the Repayment Hypothesis
The repayment hypothesis predicts that reproductive females in cooperative breeding systems overproduce the helping sex. Thanks to well-documented examples of this predicted sex ratio bias, repaymentExpand
  • 8
Investment patterns and kinship cues in a cooperatively breeding bird
In cooperatively breeding species, ‘helpers’ provide care for other individuals’ offspring. Research into cooperative breeding, which initially asked the deceptively simple question ‘why?’, hasExpand
  • 3
  • PDF
Testing the predictions of sex allocation hypotheses in dimorphic, cooperatively breeding riflemen
Abstract Evolutionary theory predicts that parents should invest equally in the two sexes. If one sex is more costly, a production bias is predicted in favour of the other. Two well‐studied causes ofExpand
  • 4
  • PDF
Do Parents Synchronise Nest Visits as an Antipredator Adaptation in Birds of New Zealand and Tasmania?
Birds with altricial offspring need to feed them regularly, but each feeding visit risks drawing attention to the nest and revealing its location to potential predators. Synchronisation of visits byExpand
Frostbite of the gluteal region.
Frostbite is a freezing injury of the skin and local tissues due to prolonged exposure to cold. The severity of injury is related to the temperature gradient at the skin surface and the duration ofExpand
  • 2
Individuality, kin similarity and experimental playback of contact calls in cooperatively breeding riflemen
ABSTRACT Riflemen/tītipounamu (Acanthisitta chloris) are kin-based cooperatively breeding birds, which appear able to recognise their relatives. Here, we investigate the potential for vocalisationsExpand
  • 1