Why the long beak? Phylogeny, convergence, feeding ecology, and evolutionary allometry shaped the skull of the Giant Cowbird Molothrus oryzivorus (Icteridae)
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DOI: 10.1002/jmor.21408
Abstract: Cowbirds are a successful group of obligate brood parasites in the Neotropical passerine family Icteridae that offer an interesting model to explore the factors behind the evolution of the bird craniomandibular complex. The Giant Cowbird,… read more here.
Keywords: feeding ecology; giant cowbird; evolutionary allometry; ecology ... See more keywords
Evolutionary allometry reveals a shift in selection pressure on male horn size
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DOI: 10.1111/jeb.13142
Abstract: How selection pressures acting within species interact with developmental constraints to shape macro‐evolutionary patterns of species divergence is still poorly understood. In particular, whether or not sexual selection affects evolutionary allometry, the increase in trait… read more here.
Keywords: horn size; selection; evolutionary allometry; size ... See more keywords
Evolution of static allometry and constraint on evolutionary allometry in a fossil stickleback
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DOI: 10.1111/jeb.13984
Abstract: Allometric scaling describes the relationship of trait size to body size within and among taxa. The slope of the population‐level regression of trait size against body size (i.e. static allometry) is typically invariant among closely… read more here.
Keywords: static allometry; evolutionary allometry; size; constraint ... See more keywords
Static allometries do not reflect evolutionary allometry in exaggerated weaponry of male New Zealand sheetweb spiders (Cambridgea spp.)
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DOI: 10.1111/jeb.14100
Abstract: Across the animal kingdom, exaggerated weaponry is frequently used by one sex to contest access for potential mates. Within species, if disproportionate investment in weaponry confers an advantage to larger individuals, this may result in… read more here.
Keywords: static allometries; zealand sheetweb; new zealand; evolutionary allometry ... See more keywords