How To Use Dimorphism In A Sentence
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Because intra- and intersexual selection can affect traits either jointly or separately, differences in sexual selection can provide insight into patterns of dimorphism between species.
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Predictions from the above hypotheses are not mutually exclusive, and associations between protandry and sexual dimorphism may be promoted by complex interactions between the suggested mechanisms acting in concert.
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Coupled with the lack of evidence for sexual dimorphism, we conclude that the simplest explanation of the diversity of plate patterns in stegosaurs is species recognition, a function also noted by Carpenter.
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Common yellowthroats are socially monogamous warblers that exhibit strong sexual dimorphism.
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These variables fishers and Bayes discriminant functions to distinguish sexual dimorphism the three strains.
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When the tests for dimorphism are now applied to these adults, it is clear that they are in fact dimorphic in just the same manner as other Jurassic ammonites.
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However, the degree of dimorphism in some clades of mammals, including perissodactyls, does not correlate with the degree of polygyny.
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Skuas and jaegers also display reversed size dimorphism to a similar degree to raptor species that feed on carrion, insects, reptiles, or mammals, but are less dimorphic than those that feed exclusively on birds.
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In some species such sexual dimorphism occurs year-round and might be explained by intersexual differences in foraging, dominance or habitat use.
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Songbirds like warblers, orioles, tanagers, grosbeaks, and sparrows are far from the only birds that display dimorphism.
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His research interests lies in: 1) insect fungal pathogenesis and strain improvement by genetic modification; 2) fungal conidiation, conidial germination and dimorphism.
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We used the relative degree of sexual size dimorphism in taxa as an approximate indicator of relative strength of sexual selection in this study.
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All eye-color mutations tested assorted independently of the dimorphisms.
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The data indicate that dimorphism in adult size may be associated with mortality bias differences brought about by dissimilar adult life styles.
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And my recent concentration on language regarding union or marriage types (homogamy and heterogamy), on the one hand, and sexual dimorphism/gender on the other, made me sensitive to my first lesson.
Philip N. Cohen: Good Woman Child Language (Talking Characters in Taiwan)
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I've been accused of being an "essentialist" on several feminist blogs, simply because I've pointed out the scientific evidence of sexual dimorphism in the brain.
Neural Dimorphism and Discrimination
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We determined the frequencies of polyandrous mating and multiple paternity in the ruff, a lekking shorebird with a genetic dimorphism in male mating behavior.
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Among the hypotheses to describe sex differences in foraging behavior are sexual size dimorphism, reduced intersexual competition for food, and differential roles of each sex during breeding.
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Sex chromosomes in M. violaceum were identified by the cosegregation of mating type and chromosome dimorphism and by mating-type-specific markers.
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The species are characterized by distinct velar dimorphism and high abundance in several localities.
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Since anisogamy (gametes of different sizes: eggs and sperm) is what defines the sexes it is thus a prerequisite for sexual dimorphism.
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They concluded that reversed size dimorphism in skuas and jaegers was not attributable to breeding role specialization.
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Although orangutans live solitary lives most of the time, they have a complex social structure and are characterized by extreme sexual dimorphism.
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Our model analyses size dimorphism with differential adult mortality.
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And my recent concentration on language regarding union or marriage types (homogamy and heterogamy), on the one hand, and sexual dimorphism/gender on the other, made me sensitive to my first lesson.
Philip N. Cohen: Good Woman Child Language (Talking Characters in Taiwan)
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Our model analyses size dimorphism with differential adult mortality.
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Numerous explanations exist for the evolution of reversed size dimorphism in raptorial species.
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The aurochs Bos primigenius, the wild ancestor of modern cattle, is now extinct, but the American bison also called the plains buffalo, which belongs to the same Bovidae family, displays enormous sexual dimorphism.
The Goddess and the Bull
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Thus, general patterns relating variation in male and female reproductive success to sexual size dimorphism in mammals remain unclear.
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The data indicate that dimorphism in adult size may be associated with mortality bias differences brought about by dissimilar adult life styles.
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Many genera in the subfamily Ambleminae, tribe Lampsilini exhibit sexual dimorphism.
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Given the strong sexual dimorphism and barred, brown female plumage of the Courol, its semi-zygodactyl feet, strong, reinforced jaws, and habit of eating caterpillars, this proposed link - which, ironically, puts the Coural back where it started in 1783 - is intriguing (cuckoos have really interesting jaws, as do the possibly related turacos and hoatzins) [sexual dimorphism in the cuckoo
ScienceBlogs Channel : Life Science
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Longspurs, buntings, towhees and seedeaters are the groups within Emberizidae that most often show sexual dimorphism.
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Common yellowthroats are socially monogamous warblers that exhibit strong sexual dimorphism.
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Chowen, JA, et al. Sexual dimorphisms and sex steroid modulation of glial fibrillary acidic protein messenger RNA and immunoreactivity levels in the hypothalamus.
T.S. Wiley: Estrogen Dilemma: There Is No Dilemma When You Know the Details
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Songbirds like warblers, orioles, tanagers, grosbeaks, and sparrows are far from the only birds that display dimorphism.
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The limbic system and hypothalamus are important because of roles in reproduction; specific nuclei show sexual dimorphism on postmortem studies bed nucleus of the stria terminalis, suprachiasmatic nucleus, and the interstitial nucleus of the anterior hypothalamus , although it is unknown when these differences emerge.
It's Easier to make a Hole than a Pole
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Many genera in the subfamily Ambleminae, tribe Lampsilini exhibit sexual dimorphism.
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The data indicate that dimorphism in adult size may be associated with mortality bias differences brought about by dissimilar adult life styles.
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Both species display an association of velar and size dimorphism in the three last instars.
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The data indicate that dimorphism in adult size may be associated with mortality bias differences brought about by dissimilar adult life styles.
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I then present a formal model for the evolution of recombination dimorphism on autosomes and on sex chromosomes.
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Analysis of heterochronic processes associated with sexual dimorphism requires the arbitrary choice of a reference morph in the dimorphic pair.
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The data indicate that dimorphism in adult size may be associated with mortality bias differences brought about by dissimilar adult life styles.
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The RSD species are also so obviously sexually dichromatic that it seems unlikely the tail length dimorphism could have evolved to reduce competition between mated pairs for access to ecological resources such as food.
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Her unadorned skull lends support to the hypothesis that Darwinopterus displayed sexual dimorphism, with males sporting a bony Mohawk-like crest.
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Then the hypothesis to be tested is whether differences among species in sexual dimorphism are related to the underlying genetic mating systems, perhaps with the most dimorphic species also being the most polyandrous.