Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 The effect of variation among floral traits on the flower constancy of pollinators
- 2 Behavioral and neural mechanisms of learning and memory as determinants of flower constancy
- 3 Subjective evaluation and choice behavior by nectar-and pollen-collecting bees
- 4 Honeybee vision and floral displays:from detection to close-up recognition
- 5 Floral scent, olfaction, and scent-driven foraging behavior
- 6 Adaptation, constraint, and chance in the evolution of flower color and pollinator color vision
- 7 Foraging and spatial learning in hummingbirds
- 8 Bats as pollinators: foraging energetics and floral adaptations
- 9 Vision and learning in some neglected pollinators: beetles, flies, moths, and butterflies
- 10 Pollinator individuality: when does it matter?
- 11 Effects of predation risk on pollinators and plants
- 12 Pollinator preference, frequency dependence, and floral evolution
- 13 Pollinator-mediated assortative mating: causes and consequences
- 14 Behavioural responses of pollinators to variation in floral display size and their influences on the evolution of floral traits
- 15 The effects of floral design and display on pollinator economics and pollen dispersal
- 16 Pollinator behavior and plant speciation: looking beyond the “ethological isolation” paradigm
- Index
14 - Behavioural responses of pollinators to variation in floral display size and their influences on the evolution of floral traits
Published online by Cambridge University Press: 13 August 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 The effect of variation among floral traits on the flower constancy of pollinators
- 2 Behavioral and neural mechanisms of learning and memory as determinants of flower constancy
- 3 Subjective evaluation and choice behavior by nectar-and pollen-collecting bees
- 4 Honeybee vision and floral displays:from detection to close-up recognition
- 5 Floral scent, olfaction, and scent-driven foraging behavior
- 6 Adaptation, constraint, and chance in the evolution of flower color and pollinator color vision
- 7 Foraging and spatial learning in hummingbirds
- 8 Bats as pollinators: foraging energetics and floral adaptations
- 9 Vision and learning in some neglected pollinators: beetles, flies, moths, and butterflies
- 10 Pollinator individuality: when does it matter?
- 11 Effects of predation risk on pollinators and plants
- 12 Pollinator preference, frequency dependence, and floral evolution
- 13 Pollinator-mediated assortative mating: causes and consequences
- 14 Behavioural responses of pollinators to variation in floral display size and their influences on the evolution of floral traits
- 15 The effects of floral design and display on pollinator economics and pollen dispersal
- 16 Pollinator behavior and plant speciation: looking beyond the “ethological isolation” paradigm
- Index
Summary
The number of flowers open at any one time on a plant, i.e., floral display size, varies greatly among plant species. For example, some species flower during a brief period and have many open flowers, while others have extended flowering with only a few open flowers at one time (Gentry 1974; Bawa 1983). Also, floral display size often varies among individuals of the same plant species (e.g., Willson & Price 1977; Pleasants & Zimmerman 1990). The causes of such variations in floral display size are enduring interest to plant ecologists (reviewed by de Jong et al. 1992).
Numerous studies have reported that variation in floral display size produces marked alterations in pollinator behavior. Especially, two types of pollinator response to increased floral display size have been recognized from the perspective of their influences on pollen dispersal. First, larger floral displays attract more pollinators per unit of time (Fig 14.1A; reviewed by Ohashi & Yahara 1998). This will promote cross-pollination in terms of increased pollen receipt, removal, or potential mate diversity (Harder & Barrett 1996). Second, the number of flowers that individual pollinators probe per plant also increases with floral display size (Fig. 14.1B; also reviewed by Ohashi & Yahara 1998). This will increase self-pollination among flowers on the same plant (“geitonogamy”; Richards 1986; de Jong et al. 1993). Thus, variation in floral display size may lead to a substantial difference in pollen dispersal and, in turn, plant fitness.
- Type
- Chapter
- Information
- Cognitive Ecology of PollinationAnimal Behaviour and Floral Evolution, pp. 274 - 296Publisher: Cambridge University PressPrint publication year: 2001
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