The Experts below are selected from a list of 405 Experts worldwide ranked by ideXlab platform
Ken N Paige - One of the best experts on this subject based on the ideXlab platform.
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(Nymphalidae)
2014Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Blackwell Science, LtdLandscape scale genetic effects of habitat fragmentation on a high gene flow species: Speyeria idali
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landscape scale genetic effects of habitat fragmentation on a high gene flow species Speyeria idalia nymphalidae
Molecular Ecology, 2002Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Detection of the genetic effects of recent habitat fragmentation in natural populations can be a difficult task, especially for high gene flow species. Previous analyses of mitochondrial DNA data from across the current range of Speyeria idalia indicated that the species exhibited high levels of gene flow among populations, with the exception of an isolated population in the eastern portion of its range. However, some populations are found on isolated habitat patches, which were recently separated from one another by large expanses of uninhabitable terrain, in the form of row crop agriculture. The goal of this study was to compare levels of genetic differentiation and diversity among populations found in relatively continuous habitat to populations in both recently and historically isolated habitat. Four microsatellite loci were used to genotype over 300 individuals from five populations in continuous habitat, five populations in recently fragmented habitat, and one historically isolated population. Results from the historically isolated population were concordant with previous analyses and suggest significant differentiation. Also, microsatellite data were consistent with the genetic effects of habitat fragmentation for the recently isolated populations, in the form of increased differentiation and decreased genetic diversity when compared to nonfragmented populations. These results suggest that given the appropriate control populations, microsatellite markers can be used to detect the effects of recent habitat fragmentation in natural populations, even at a large geographical scale in high gene flow species.
Lorne M Wolfe - One of the best experts on this subject based on the ideXlab platform.
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The University of Chicago Reproduction in Flame Azalea ( Rhododendron calendulaceum , Ericaceae): A Rare Case of Insect Wing Pollination Reproduction in Flame Azalea (Rhododendron calendulaceum, Ericaceae): A Rare Case of Insect Wing Pollination
2020Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. . We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Over two seasons of observations, only butterflies (Papilio glaucus and Speyeria cybele) contacted both anthers and stigmas, yet because of differences in wing-flapping behavior, P. glaucus transferred pollen most efficiently. In contrast, bee species specialized either on pollen or nectar but did not contact both anthers and stigmas. A field experiment revealed that flowers excluding butterflies experienced almost complete fruit failure, whereas fruit set in open flowers did not differ from those that were hand pollinated. Additionally, butterflies had 56-fold more azalea pollen on their wings than bodies, while azalea stigmas bore both pollen and wing scales. These results suggest that plants with many visitors contacting reproductive organs may still specialize on a single guild of visitors for pollination and that wing-borne pollen transfer is a key mode of flame azalea pollination
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Papilio glaucus v. Speyeria cybele on flame azalea
2016Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:Field observations of contact between a butterfly and anthers versus stigmas during visits to _Rhododendron calendulaceum_ flowers by the butterflies _Papilio glaucus_ and _Speyeria cybele_. Contact with flower part during a flower visit = 1, absence of contact with a flower part = 0
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reproduction in flame azalea rhododendron calendulaceum ericaceae a rare case of insect wing pollination
The American Naturalist, 2015Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:AbstractAlthough many angiosperms are serviced by flying pollinators, reports of wings as pollen vectors are rare. Flame azalea (Rhododendron calendulaceum) is visited by diverse insects, yet previous observations suggested that only butterfly wings may transfer pollen to stigmas. We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Over two seasons of observations, only butterflies (Papilio glaucus and Speyeria cybele) contacted both anthers and stigmas, yet because of differences in wing-flapping behavior, P. glaucus transferred pollen most efficiently. In contrast, bee species specialized either on pollen or nectar but did not contact both anthers and stigmas. A field experiment revealed that flowers excluding butterflies experienced almost complete fruit failure, whereas fruit set in open flowers did not differ from those that were hand pollinated. Additionally, butterflies had 56-fold more azalea pollen on their wings than bodie...
Barry L Williams - One of the best experts on this subject based on the ideXlab platform.
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(Nymphalidae)
2014Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Blackwell Science, LtdLandscape scale genetic effects of habitat fragmentation on a high gene flow species: Speyeria idali
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Landscape scale genetic effects of habitat fragmentation on a high gene flow species: Speyeria idalia (Nymphalidae). Molecular Ecology 12
2003Co-Authors: Barry L Williams, R ‡ R Y L . W I L L I A M S , * J E F F R E B A, Y † And D B R A W N K E, N N P A I G EAbstract:Abstract Detection of the genetic effects of recent habitat fragmentation in natural populations can be a difficult task, especially for high gene flow species. Previous analyses of mitochondrial DNA data from across the current range of Speyeria idalia indicated that the species exhibited high levels of gene flow among populations, with the exception of an isolated population in the eastern portion of its range. However, some populations are found on isolated habitat patches, which were recently separated from one another by large expanses of uninhabitable terrain, in the form of row crop agriculture. The goal of this study was to compare levels of genetic differentiation and diversity among populations found in relatively continuous habitat to populations in both recently and historically isolated habitat. Four microsatellite loci were used to genotype over 300 individuals from five populations in continuous habitat, five populations in recently fragmented habitat, and one historically isolated population. Results from the historically isolated population were concordant with previous analyses and suggest significant differentiation. Also, microsatellite data were consistent with the genetic effects of habitat fragmentation for the recently isolated populations, in the form of increased differentiation and decreased genetic diversity when compared to nonfragmented populations. These results suggest that given the appropriate control populations, microsatellite markers can be used to detect the effects of recent habitat fragmentation in natural populations, even at a large geographical scale in high gene flow species
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landscape scale genetic effects of habitat fragmentation on a high gene flow species Speyeria idalia nymphalidae
Molecular Ecology, 2002Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Detection of the genetic effects of recent habitat fragmentation in natural populations can be a difficult task, especially for high gene flow species. Previous analyses of mitochondrial DNA data from across the current range of Speyeria idalia indicated that the species exhibited high levels of gene flow among populations, with the exception of an isolated population in the eastern portion of its range. However, some populations are found on isolated habitat patches, which were recently separated from one another by large expanses of uninhabitable terrain, in the form of row crop agriculture. The goal of this study was to compare levels of genetic differentiation and diversity among populations found in relatively continuous habitat to populations in both recently and historically isolated habitat. Four microsatellite loci were used to genotype over 300 individuals from five populations in continuous habitat, five populations in recently fragmented habitat, and one historically isolated population. Results from the historically isolated population were concordant with previous analyses and suggest significant differentiation. Also, microsatellite data were consistent with the genetic effects of habitat fragmentation for the recently isolated populations, in the form of increased differentiation and decreased genetic diversity when compared to nonfragmented populations. These results suggest that given the appropriate control populations, microsatellite markers can be used to detect the effects of recent habitat fragmentation in natural populations, even at a large geographical scale in high gene flow species.
Mary Jane Epps - One of the best experts on this subject based on the ideXlab platform.
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The University of Chicago Reproduction in Flame Azalea ( Rhododendron calendulaceum , Ericaceae): A Rare Case of Insect Wing Pollination Reproduction in Flame Azalea (Rhododendron calendulaceum, Ericaceae): A Rare Case of Insect Wing Pollination
2020Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. . We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Over two seasons of observations, only butterflies (Papilio glaucus and Speyeria cybele) contacted both anthers and stigmas, yet because of differences in wing-flapping behavior, P. glaucus transferred pollen most efficiently. In contrast, bee species specialized either on pollen or nectar but did not contact both anthers and stigmas. A field experiment revealed that flowers excluding butterflies experienced almost complete fruit failure, whereas fruit set in open flowers did not differ from those that were hand pollinated. Additionally, butterflies had 56-fold more azalea pollen on their wings than bodies, while azalea stigmas bore both pollen and wing scales. These results suggest that plants with many visitors contacting reproductive organs may still specialize on a single guild of visitors for pollination and that wing-borne pollen transfer is a key mode of flame azalea pollination
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Papilio glaucus v. Speyeria cybele on flame azalea
2016Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:Field observations of contact between a butterfly and anthers versus stigmas during visits to _Rhododendron calendulaceum_ flowers by the butterflies _Papilio glaucus_ and _Speyeria cybele_. Contact with flower part during a flower visit = 1, absence of contact with a flower part = 0
-
reproduction in flame azalea rhododendron calendulaceum ericaceae a rare case of insect wing pollination
The American Naturalist, 2015Co-Authors: Mary Jane Epps, Suzanne E Allison, Lorne M WolfeAbstract:AbstractAlthough many angiosperms are serviced by flying pollinators, reports of wings as pollen vectors are rare. Flame azalea (Rhododendron calendulaceum) is visited by diverse insects, yet previous observations suggested that only butterfly wings may transfer pollen to stigmas. We used an experimental approach to determine whether butterfly wings are the primary vehicle of pollination in flame azalea. Over two seasons of observations, only butterflies (Papilio glaucus and Speyeria cybele) contacted both anthers and stigmas, yet because of differences in wing-flapping behavior, P. glaucus transferred pollen most efficiently. In contrast, bee species specialized either on pollen or nectar but did not contact both anthers and stigmas. A field experiment revealed that flowers excluding butterflies experienced almost complete fruit failure, whereas fruit set in open flowers did not differ from those that were hand pollinated. Additionally, butterflies had 56-fold more azalea pollen on their wings than bodie...
Jeffrey D Brawn - One of the best experts on this subject based on the ideXlab platform.
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(Nymphalidae)
2014Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Blackwell Science, LtdLandscape scale genetic effects of habitat fragmentation on a high gene flow species: Speyeria idali
-
landscape scale genetic effects of habitat fragmentation on a high gene flow species Speyeria idalia nymphalidae
Molecular Ecology, 2002Co-Authors: Barry L Williams, Jeffrey D Brawn, Ken N PaigeAbstract:Detection of the genetic effects of recent habitat fragmentation in natural populations can be a difficult task, especially for high gene flow species. Previous analyses of mitochondrial DNA data from across the current range of Speyeria idalia indicated that the species exhibited high levels of gene flow among populations, with the exception of an isolated population in the eastern portion of its range. However, some populations are found on isolated habitat patches, which were recently separated from one another by large expanses of uninhabitable terrain, in the form of row crop agriculture. The goal of this study was to compare levels of genetic differentiation and diversity among populations found in relatively continuous habitat to populations in both recently and historically isolated habitat. Four microsatellite loci were used to genotype over 300 individuals from five populations in continuous habitat, five populations in recently fragmented habitat, and one historically isolated population. Results from the historically isolated population were concordant with previous analyses and suggest significant differentiation. Also, microsatellite data were consistent with the genetic effects of habitat fragmentation for the recently isolated populations, in the form of increased differentiation and decreased genetic diversity when compared to nonfragmented populations. These results suggest that given the appropriate control populations, microsatellite markers can be used to detect the effects of recent habitat fragmentation in natural populations, even at a large geographical scale in high gene flow species.