Articles with "sex ratios" as a keyword



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Rapid population sex-ratio changes in the moss Ceratodon purpureus.

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Published in 2018 at "American journal of botany"

DOI: 10.1002/ajb2.1128

Abstract: PREMISE OF THE STUDY Sex-ratio variation occurs widely in dioecious plants, but the mechanisms of population sex-ratio bias are poorly understood. In bryophytes, sex ratios are often female biased, and little information is available about… read more here.

Keywords: sex; sex ratio; population sex; sex ratios ... See more keywords
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Determination and analysis of sex ratios in heme oxygenase 1 gene targeted mouse embryos

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Published in 2022 at "Birth Defects Research"

DOI: 10.1002/bdr2.2087

Abstract: Heme oxygenase 1 or Hmox1 enzyme is involved in catalyzing the first and rate‐limiting step in heme breakdown reactions. Many studies have reported a partial lethality of Hmox1 knockout mice obtained from heterozygous breeding pairs.… read more here.

Keywords: sex ratios; embryonic stages; heme oxygenase; sex ... See more keywords
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Temperature along an elevation gradient determines Galapagos tortoise sex ratios

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Published in 2023 at "Ecology and Evolution"

DOI: 10.1002/ece3.10008

Abstract: Abstract Climate change threatens endemic island ectothermic reptiles that display small population sizes and temperature‐dependent sex determination (TSD). Studies of captive Galapagos tortoises demonstrate type A TSD with warmer incubation temperatures producing females. However, there… read more here.

Keywords: sex ratios; incubation; temperature; sex ... See more keywords
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Opposing effects of mortality factors on progeny operational sex ratio may thwart adaptive manipulation of primary sex ratio

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Published in 2017 at "Ecology and Evolution"

DOI: 10.1002/ece3.3071

Abstract: Abstract Despite extensive research on mechanisms generating biases in sex ratios, the capacity of natural enemies to shift or further skew operational sex ratios following sex allocation and parental care remains largely unstudied in natural… read more here.

Keywords: sex ratio; sex ratios; mortality; operational sex ... See more keywords
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Seasonal variation in the sex and age composition of the woodcock bag in Denmark

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Published in 2017 at "European Journal of Wildlife Research"

DOI: 10.1007/s10344-017-1114-5

Abstract: The Eurasian woodcock is a highly valued game bird in Western Europe from which c. 2.7 million individuals are harvested annually from an estimated population of 20–26 million birds. The population size and status remains… read more here.

Keywords: bag; age; woodcock; sex ratios ... See more keywords
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Potential male leatherback hatchlings exhibit higher fitness which might balance sea turtle sex ratios in the face of climate change

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Published in 2019 at "Climatic Change"

DOI: 10.1007/s10584-019-02462-1

Abstract: Sea turtles are vertebrates with temperature-dependent sex determination. Rising temperatures due to climate change cause female-biased sex ratios. We have assessed the influence of nest depth and shading conditions on nest temperatures and hatchling fitness… read more here.

Keywords: sea; sex ratios; sex; fitness ... See more keywords
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Convergent evidence for a theory of rapid, automatic, and accurate sex ratio tracking.

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Published in 2020 at "Acta psychologica"

DOI: 10.1016/j.actpsy.2020.103161

Abstract: It is presumed that people track the sex ratios in their environment (the number of males relative to number of females) in order to adaptively adjust their decisions and behaviors, but this actual tracking ability… read more here.

Keywords: research; sex ratio; convergent evidence; sex ratios ... See more keywords

Establishing optimal broodstock sex ratios for the royal gramma (Gramma loreto) in small scale system aquaculture

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Published in 2021 at "Aquaculture"

DOI: 10.1016/j.aquaculture.2021.736931

Abstract: Abstract The royal gramma (Gramma loreto) is vulnerable to anthropogenic impact in its coral reef habitats, and is deemed an “indicator” species of pollution. It is also heavily fished for the aquarium trade, being among… read more here.

Keywords: sex ratios; aquaculture; sex; gramma gramma ... See more keywords
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Major global changes interact to cause male-biased sex ratios in a reptile with temperature-dependent sex determination

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Published in 2018 at "Biological Conservation"

DOI: 10.1016/j.biocon.2018.03.006

Abstract: Abstract Habitat loss and pollution are two of the greatest global threats to biodiversity. Due to their widespread prevalence, these threats often co-occur, yet their interactive effects on organisms remain poorly understood. Some reptiles are… read more here.

Keywords: sex determination; sex ratios; temperature dependent; sex ... See more keywords
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Can offspring sex ratios help to explain the endocrine effects of toxoplasmosis infection on human behaviour?

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Published in 2018 at "Early human development"

DOI: 10.1016/j.earlhumdev.2018.06.001

Abstract: Humans infected with the parasite Toxoplasma gondii display a wide variety of abnormal behaviours, from suicide and depression to stuttering. These behaviours have been seen as so serious as to constitute a public health problem.… read more here.

Keywords: explain endocrine; ratios help; sex ratios; help explain ... See more keywords
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Skin coloration as a possible non-invasive marker for skewed sex ratios and gonadal abnormalities in immature common toads (Bufo bufo)

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Published in 2020 at "Ecological Indicators"

DOI: 10.1016/j.ecolind.2020.106175

Abstract: Abstract Environmental pollution and climate change can bias the sex ratios of animal populations in which sexual development is sensitive to environmental contaminants and temperature. Investigating these effects in field studies and ecotoxicological experiments is… read more here.

Keywords: sex ratios; non invasive; skin coloration; sex ... See more keywords