Estradiol induces proliferation of peroxisome-like microbodies and the production of 3-hydroxy fatty acid diesters, the female pheromones, in the uropygial glands of male and female mallards

Bohnet, Stewart; Rogers, Linda; Sasaki, Glenn C.; Kolattukudy, P.E.

doi:10.1016/s0021-9258(18)92890-5

Cited by 55 publications

(11 citation statements)

References 32 publications

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“…For example, the preen oil of Eurasian moorhens ( Gallinula chloropus ) is less volatile during breeding than non‐breeding, and olfactory crypsis was proposed as an explanation (López‐Perea & Mateo, 2019). In mallards ( Anas platyrhynchos ), a shift from monoesters to diesters at the onset of breeding was observed in females but not in males (Jacob et al ., 1979; Bohnet et al ., 1991). The shift was first thought to be involved in mate choice, by providing an olfactory cue that males might use to identify females in breeding condition (see Section IV.2).…”

Section: Discussionmentioning

confidence: 99%

Olfactory camouflage and communication in birds

Grieves

Gilles

Cuthill³

et al. 2022

Biological Reviews

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Smell is a sensory modality that is rarely considered in birds, but evidence is mounting that olfaction is an important aspect of avian behaviour and ecology. The uropygial gland produces an odoriferous secretion (preen oil) that can differ seasonally and between the sexes. These differences are hypothesized to function in olfactory camouflage, i.e. minimizing detection by nest predators (olfactory crypsis hypothesis), and/or intraspecific olfactory communication, particularly during breeding (sex semiochemical hypothesis). However, evidence for seasonal and sex differences in preen oil is mixed, with some studies finding differences and others not, and direct evidence for the putative function(s) of seasonal variation and sex differences in preen oil remains limited. We conducted a systematic review of the evidence for such changes in preen oil chemical composition, finding seasonal differences in 95% of species (57/60 species in 35 studies) and sex differences in 47% of species (28/59 species in 46 studies). We then conducted phylogenetic comparative analyses using data from 59 bird species to evaluate evidence for both the olfactory crypsis and sex semiochemical hypotheses. Seasonal differences were more likely in the incubating than non‐incubating sex in ground‐nesting species, but were equally likely regardless of incubation strategy in non‐ground‐nesting species. This result supports the olfactory crypsis hypothesis, if ground nesters are more vulnerable to olfactorily searching predators than non‐ground nesters. Sex differences were more likely in species with uniparental than biparental incubation and during breeding than non‐breeding, consistent with both the olfactory crypsis and sex semiochemical hypotheses. At present, the data do not allow us to disentangle these two hypotheses, but we provide recommendations that will enable researchers to do so.

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Section: Discussionmentioning

confidence: 99%

Olfactory camouflage and communication in birds

Grieves

Gilles

Cuthill³

et al. 2022

Biological Reviews

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“…Males whose olfactory nerves were severed exhibited signifi cantly fewer sexual and social behaviors toward females than sham-operated (control) males (Balthazart and Schoff eniels 1979). Diff erences in responses were correlated with seasonal changes in the uropygial secretions of females (Jacob et al 1979, Bohnet et al 1991, which suggests that an intact sense of smell is required for males to detect female chemicals and exhibit appropriate behaviors. However, the general mechanism by which chemical compounds are transmitt ed between individuals of this species remains unclear.…”

Section: An Assessment Of Chemical Defensementioning

confidence: 99%

“…Sweeney et al 2004). Avian uropygial glands can vary seasonally in size and secretory chemistry (Kennedy 1971, Bohnet et al 1991, Piersma et al 1999, Reneerkens et al 2002, Soini et al 2007. Secretions can also diff er by sex (Jacob et al 1979, Bhatt acharyya andChowdhury 1995) and by age and diet (Sandilands et al 2004a, b), which indicates that they could reveal important patt erns of information relevant to social interactions.…”

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confidence: 99%

Bird Odors and Other Chemical Substances: A Defense Mechanism or Overlooked Mode of Intraspecific Communication?

Hagelin

Jones

2007

The Auk

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“…Another area of potential exploration for this sampling technique is chemical communication in bird species. As hypothesized in the recent literature, [45][46][47] bird wing feather surfaces can be an important source of chemosignaling substances within a species. Our preliminary studies of VOCs in preen gland composition 48 strongly suggest that VOC profiles change due to hormones and breeding season.…”

Section: Resultsmentioning

confidence: 99%

In Situ Surface Sampling of Biological Objects and Preconcentration of Their Volatiles for Chromatographic Analysis

et al. 2006

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This report describes a rolling stir bar sampling procedure for volatile organic compounds (VOCs) present on various biological surfaces. In combination with thermal desorption/gas chromatography/mass spectrometry, this analytical technique was initially tested for quantitative profiling of human skin VOCs. It is also applicable to additional hydrophobic surfaces such as agricultural products, plant materials, and bird feathers. Use of embedded internal standards provides highly reproducible and quantitative results for a wide variety of sampled trace components. The samples of collected human skin VOCs and standards were found stable under cool storage conditions for at least 14 days, making this approach suitable for field biological and agricultural studies. Additionally, this methodology appears to have potential for forensic and toxicological investigations, as suggested through the analyses of VOC profiles of the human thumb prints recovered from a nonbiological smooth surface.

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Estradiol induces proliferation of peroxisome-like microbodies and the production of 3-hydroxy fatty acid diesters, the female pheromones, in the uropygial glands of male and female mallards

Cited by 55 publications

References 32 publications

Olfactory camouflage and communication in birds

Olfactory camouflage and communication in birds

Bird Odors and Other Chemical Substances: A Defense Mechanism or Overlooked Mode of Intraspecific Communication?

In Situ Surface Sampling of Biological Objects and Preconcentration of Their Volatiles for Chromatographic Analysis

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