8 hasil untuk "Devi Stuart-Fox"
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Artikel Jurnal Teks lengkap
Selection for Social Signalling Drives the Evolution of Chameleon Colour Change
Rapid colour change is a remarkable natural phenomenon that has evolved in several vertebrate and invertebrate lineages. The two principal explanations for the evolution of this adaptive strategy are (1) natural selection for crypsis (camouflage) against a range of different backgrounds and (2)…
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Testosterone-Induced Expression of Male Colour Morphs in Females of the Polymorphic Tawny Dragon Lizard, Ctenophorus decresii
Many colour polymorphisms are present only in one sex, usually males, but proximate mechanisms controlling the expression of sex-limited colour polymorphisms have received little attention. Here, we test the hypothesis that artificial elevation of testosterone in females of the colour polymorphic…
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Artikel Jurnal Teks lengkap
Cyclic Colour Change in the Bearded Dragon Pogona vitticeps under Different Photoperiods
The ability to change colour rapidly is widespread among ectotherms and has various functions including camouflage, communication and thermoregulation. The process of colour change can occur as an aperiodic event or be rhythmic, induced by cyclic environmental factors or regulated by internal…
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Artikel Jurnal Teks lengkap
The gender gap in science: How long until women are equally represented?
Women comprise a minority of the Science, Technology, Engineering, Mathematics, and Medicine (STEMM) workforce. Quantifying the gender gap may identify fields that will not reach parity without intervention, reveal underappreciated biases, and inform benchmarks for gender balance among conference…
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Artikel Jurnal Teks lengkap
Does Predation Risk Affect Mating Behavior? An Experimental Test in Dumpling Squid ( Euprymna tasmanica )
Introduction: One of the most important trade-offs for many animals is that between survival and reproduction. This is particularly apparent when mating increases the risk of predation, either by increasing conspicuousness, reducing mobility or inhibiting an individual's ability to detect…
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Artikel Jurnal Teks lengkap
Multiple Fitness Benefits of Polyandry in a Cephalopod
Background: Sex differences in reproductive investment play a crucial role in sexual conflict. One intriguing aspect of sexual conflict is the evolution of female multiple mating (polyandry), particularly in systems where females receive no obvious direct benefits from males, and where mating is…
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Artikel Jurnal Teks lengkap
The microstructure of white feathers predicts their visible and near-infrared reflectance properties
Abstract: Research on the optical properties of animal integuments, including fur, feather, skin and cuticle, has focussed almost exclusively on animal-visible wavelengths within the narrow range of 300–700 nm. By contrast, the near-infrared (NIR) portion of direct sunlight, spanning 700–2600 nm…
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Artikel Jurnal Teks lengkap
Variation in Phenotype, Parasite Load and Male Competitive Ability across a Cryptic Hybrid Zone
Background: Molecular genetic studies are revealing an increasing number of cryptic lineages or species, which are highly genetically divergent but apparently cannot be distinguished morphologically. This observation gives rise to three important questions: 1) have these cryptic lineages diverged…