Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/81201
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Type: Journal article
Title: A review of the energetics of pollination biology
Author: McCallum, K.
McDougall, F.
Seymour, R.
Citation: Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology, 2013; 183(7):867-876
Publisher: Springer
Issue Date: 2013
ISSN: 0174-1578
1432-136X
Statement of
Responsibility: 
Kimberly P. McCallum, Freya O. McDougall, Roger S. Seymour
Abstract: Pollination biology is often associated with mutualistic interactions between plants and their animal pollen vectors, with energy rewards as the foundation for co-evolution. Energy is supplied as food (often nectar from flowers) or as heat (in sun-tracking or thermogenic plants). The requirements of pollinators for these resources depend on many factors, including the costs of living, locomotion, thermoregulation and behaviour, all of which are influenced by body size. These requirements are modified by the availability of energy offered by plants and environmental conditions. Endothermic insects, birds and bats are very effective, because they move faster and are more independent of environmental temperatures, than are ectothermic insects, but they are energetically costly for the plant. The body size of endothermic pollinators appears to be influenced by opposing requirements of the animals and plants. Large body size is advantageous for endotherms to retain heat. However, plants select for small body size of endotherms, as energy costs of larger size are not matched by increases in flight speed. If high energy costs of endothermy cannot be met, birds and mammals employ daily torpor, and large insects reduce the frequency of facultative endothermy. Energy uptake can be limited by the time required to absorb the energy or eliminate the excess water that comes with it. It can also be influenced by variations in climate that determine temperature and flowering season.
Keywords: Energy; Metabolic rate; Pollinator; Insect; Bird; Bat; Nectar; Torpor; Endothermy; Body size; Scaling; Allometry
Rights: © Springer-Verlag Berlin Heidelberg 2013
RMID: 0020131914
DOI: 10.1007/s00360-013-0760-5
Appears in Collections:Earth and Environmental Sciences publications

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