• Publications
  • Influence
Integrating landscape ecology and conservation physiology
The need to understand how anthropogenic landscape alteration affects fauna populations has never been more pressing. The importance of developing an understanding of the processes behind localExpand
  • 113
  • 12
Intake Responses in Nectar Feeding Birds: Digestive and Metabolic Causes, Osmoregulatory Consequences, and Coevolutionary Effects
Nectar-feeding vertebrates respond to variation in nectar sugar content by modulating volumetric intake. In some nectar feeding animals, the intake response to sugar concentration can be accuratelyExpand
  • 121
  • 7
Renal function in Palestine sunbirds: elimination of excess water does not constrain energy intake
SUMMARY Although the renal responses of birds to dehydration have received significant attention, the consequences of ingesting and processing large quantities of water have been less studied.Expand
  • 39
  • 7
  • PDF
The integration of digestion and osmoregulation in the avian gut
We review digestion and osmoregulation in the avian gut, with an emphasis on the ways these different functions might interact to support or constrain each other and the ways they support theExpand
  • 68
  • 6
The digestive adaptation of flying vertebrates: High intestinal paracellular absorption compensates for smaller guts
Anecdotal evidence suggests that birds have smaller intestines than mammals. In the present analysis, we show that small birds and bats have significantly shorter small intestines and less smallExpand
  • 114
  • 4
  • PDF
Modulation of ingested water absorption by Palestine sunbirds: evidence for adaptive regulation
SUMMARY Nectarivorous birds feed on dilute sugar solutions containing trace amounts of amino acids and electrolytes. To meet their high mass-specific energy demands they must often deal withExpand
  • 39
  • 4
  • PDF
Nectar concentration affects sugar preferences in two Australian honeyeaters and a lorikeet
1. Understanding avian diet preferences reveals a great deal about the birds' digestive physiology and relationships with food plants, and can make a valuable contribution towards directingExpand
  • 47
  • 4
Are Hummingbirds Facultatively Ammonotelic? Nitrogen Excretion and Requirements as a Function of Body Size
Most birds are uricotelic. An exception to this rule may be nectar‐feeding birds, which excrete significant amounts of ammonia under certain conditions. Although ammonia is toxic, because it isExpand
  • 32
  • 4
  • PDF
Avian thermoregulation in the heat: efficient evaporative cooling allows for extreme heat tolerance in four southern hemisphere columbids
ABSTRACT Birds show phylogenetic variation in the relative importance of respiratory versus cutaneous evaporation, but the consequences for heat tolerance and evaporative cooling capacity remainExpand
  • 54
  • 3
  • PDF
Hummingbirds arrest their kidneys at night: diel variation in glomerular filtration rate in Selasphorus platycercus
SUMMARY Small nectarivorous vertebrates face a quandary. When feeding, they must eliminate prodigious quantities of water; however, when they are not feeding, they are susceptible to dehydration. WeExpand
  • 33
  • 3
  • PDF
...
1
2
3
4
5
...