The Experts below are selected from a list of 2256 Experts worldwide ranked by ideXlab platform
R. Van Damme - One of the best experts on this subject based on the ideXlab platform.
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climate related environmental variation in a visual Signalling Device the male and female dewlap in anolis sagrei lizards
Journal of Evolutionary Biology, 2017Co-Authors: Tess Driessens, Simon Baeckens, Manuela Balzarolo, Bieke Vanhooydonck, Katleen Huyghe, R. Van DammeAbstract:Animals communicate using a variety of signals that differ dramatically among and within species. The astonishing dewlap diversity in anoles has attracted considerable attention in this respect. Yet, the evolutionary processes behind it remain elusive and have mostly been explored for males only. Here, we considered Anolis sagrei males and females to study signal divergence among populations. First, we assessed the degree of variation in dewlap design (size, pattern, colour) and displays by comparing 17 populations distributed across the Caribbean. Second, we assessed whether the observed dewlap diversity is associated to variation in climate-related environmental conditions. Results showed that populations differed in all dewlap characteristics, with the exception of display rate in females. We further found that males and females occurring in ‘xeric’ environments had a higher proportion of solid dewlaps with higher UV-reflectance. In addition, lizards inhabiting ‘mesic’ environments had primarily marginal dewlaps showing high reflectance in red. For dewlap display, a correlation with environment was only observed in males. Our study provides evidence for a strong relationship between signal design and prevailing environmental conditions, which may result from differential selection on signal efficacy. Moreover, our study highlights the importance of including females when studying dewlaps in an evolutionary context. This article is protected by copyright. All rights reserved.
Tess Driessens - One of the best experts on this subject based on the ideXlab platform.
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climate related environmental variation in a visual Signalling Device the male and female dewlap in anolis sagrei lizards
Journal of Evolutionary Biology, 2017Co-Authors: Tess Driessens, Simon Baeckens, Manuela Balzarolo, Bieke Vanhooydonck, Katleen Huyghe, R. Van DammeAbstract:Animals communicate using a variety of signals that differ dramatically among and within species. The astonishing dewlap diversity in anoles has attracted considerable attention in this respect. Yet, the evolutionary processes behind it remain elusive and have mostly been explored for males only. Here, we considered Anolis sagrei males and females to study signal divergence among populations. First, we assessed the degree of variation in dewlap design (size, pattern, colour) and displays by comparing 17 populations distributed across the Caribbean. Second, we assessed whether the observed dewlap diversity is associated to variation in climate-related environmental conditions. Results showed that populations differed in all dewlap characteristics, with the exception of display rate in females. We further found that males and females occurring in ‘xeric’ environments had a higher proportion of solid dewlaps with higher UV-reflectance. In addition, lizards inhabiting ‘mesic’ environments had primarily marginal dewlaps showing high reflectance in red. For dewlap display, a correlation with environment was only observed in males. Our study provides evidence for a strong relationship between signal design and prevailing environmental conditions, which may result from differential selection on signal efficacy. Moreover, our study highlights the importance of including females when studying dewlaps in an evolutionary context. This article is protected by copyright. All rights reserved.
Simon Baeckens - One of the best experts on this subject based on the ideXlab platform.
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climate related environmental variation in a visual Signalling Device the male and female dewlap in anolis sagrei lizards
Journal of Evolutionary Biology, 2017Co-Authors: Tess Driessens, Simon Baeckens, Manuela Balzarolo, Bieke Vanhooydonck, Katleen Huyghe, R. Van DammeAbstract:Animals communicate using a variety of signals that differ dramatically among and within species. The astonishing dewlap diversity in anoles has attracted considerable attention in this respect. Yet, the evolutionary processes behind it remain elusive and have mostly been explored for males only. Here, we considered Anolis sagrei males and females to study signal divergence among populations. First, we assessed the degree of variation in dewlap design (size, pattern, colour) and displays by comparing 17 populations distributed across the Caribbean. Second, we assessed whether the observed dewlap diversity is associated to variation in climate-related environmental conditions. Results showed that populations differed in all dewlap characteristics, with the exception of display rate in females. We further found that males and females occurring in ‘xeric’ environments had a higher proportion of solid dewlaps with higher UV-reflectance. In addition, lizards inhabiting ‘mesic’ environments had primarily marginal dewlaps showing high reflectance in red. For dewlap display, a correlation with environment was only observed in males. Our study provides evidence for a strong relationship between signal design and prevailing environmental conditions, which may result from differential selection on signal efficacy. Moreover, our study highlights the importance of including females when studying dewlaps in an evolutionary context. This article is protected by copyright. All rights reserved.
Katleen Huyghe - One of the best experts on this subject based on the ideXlab platform.
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climate related environmental variation in a visual Signalling Device the male and female dewlap in anolis sagrei lizards
Journal of Evolutionary Biology, 2017Co-Authors: Tess Driessens, Simon Baeckens, Manuela Balzarolo, Bieke Vanhooydonck, Katleen Huyghe, R. Van DammeAbstract:Animals communicate using a variety of signals that differ dramatically among and within species. The astonishing dewlap diversity in anoles has attracted considerable attention in this respect. Yet, the evolutionary processes behind it remain elusive and have mostly been explored for males only. Here, we considered Anolis sagrei males and females to study signal divergence among populations. First, we assessed the degree of variation in dewlap design (size, pattern, colour) and displays by comparing 17 populations distributed across the Caribbean. Second, we assessed whether the observed dewlap diversity is associated to variation in climate-related environmental conditions. Results showed that populations differed in all dewlap characteristics, with the exception of display rate in females. We further found that males and females occurring in ‘xeric’ environments had a higher proportion of solid dewlaps with higher UV-reflectance. In addition, lizards inhabiting ‘mesic’ environments had primarily marginal dewlaps showing high reflectance in red. For dewlap display, a correlation with environment was only observed in males. Our study provides evidence for a strong relationship between signal design and prevailing environmental conditions, which may result from differential selection on signal efficacy. Moreover, our study highlights the importance of including females when studying dewlaps in an evolutionary context. This article is protected by copyright. All rights reserved.
Bieke Vanhooydonck - One of the best experts on this subject based on the ideXlab platform.
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climate related environmental variation in a visual Signalling Device the male and female dewlap in anolis sagrei lizards
Journal of Evolutionary Biology, 2017Co-Authors: Tess Driessens, Simon Baeckens, Manuela Balzarolo, Bieke Vanhooydonck, Katleen Huyghe, R. Van DammeAbstract:Animals communicate using a variety of signals that differ dramatically among and within species. The astonishing dewlap diversity in anoles has attracted considerable attention in this respect. Yet, the evolutionary processes behind it remain elusive and have mostly been explored for males only. Here, we considered Anolis sagrei males and females to study signal divergence among populations. First, we assessed the degree of variation in dewlap design (size, pattern, colour) and displays by comparing 17 populations distributed across the Caribbean. Second, we assessed whether the observed dewlap diversity is associated to variation in climate-related environmental conditions. Results showed that populations differed in all dewlap characteristics, with the exception of display rate in females. We further found that males and females occurring in ‘xeric’ environments had a higher proportion of solid dewlaps with higher UV-reflectance. In addition, lizards inhabiting ‘mesic’ environments had primarily marginal dewlaps showing high reflectance in red. For dewlap display, a correlation with environment was only observed in males. Our study provides evidence for a strong relationship between signal design and prevailing environmental conditions, which may result from differential selection on signal efficacy. Moreover, our study highlights the importance of including females when studying dewlaps in an evolutionary context. This article is protected by copyright. All rights reserved.
