Sentences with phrase «on fecundity»
Recent answers focus on fecundity impairments brought on by postponement of fertility, the high opportunity cost of childbearing, and partnership dissolution (Bongaarts 2001; Morgan and Rackin 2010; Quesnel - Vallée and Morgan 2003).
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Neuter / return, however, is an effective brake on fecundity.
If these ancient rites hadn't been co-opted by capitalism, hadn't morphed into pastel M&M s, plastic grass and My Little Ponies with bunny ears, I might find it a relief to preach on the fecundity of spring, rather than trying to tell the story of a living, breathing dead man.
Not exact matches
Sanger's powerfully charged distinction between prudent and imprudent fecundity has grown to influence policies on everything from immigration to public schools.
He thought his theology thus to be an empirical one, founded on man's experience of the infinite fecundity of the creator's mind.
On the other hand, in presenting the first two points of his program, he lifts up principles of great value and fecundity.
Never on record has observed fertility fallen so fast or so far, from extreme fecundity to predictable extinction.
Everyone who has watched the television programmes on planet earth, or on wildlife, or who has visited a botanical garden, can not fail to be astonished at the variety and fecundity of the numerous...
«New research demands rethink on Darwin's theory of «fecundity selection».»
The study, published in the scientific journal Biological Reviews, concludes that the theory of «fecundity selection» — one of Charles Darwin's three main evolutionary principles, also known as «fertility selection» — should be redefined so that it no longer rests on the idea that more fertile females are more successful in evolutionary terms.
Based on previous studies of the life - history, physical and ecological aspects of fecundity, Dr Pincheira - Donoso's work also concludes that the theory should distinguish between fertility during an animal's lifetime and during one particular breeding season, rather than grouping all time periods together.
Other parameters that can be included are: primary depth range, geographic range, habitat preferences, information on life cycle and development, fecundity and spawning season, ecological requirements and limitations.
Given the multiple mating of honeybee queens it is unclear what the consequences of a reduction in sperm quality would actually have on queen fecundity.»
Incorrect regulation of body size has important consequences on the adult animal, impacting its survival and its fitness by altering its fecundity, longevity, and stress resistance [1 — 4].
Everyone remarks on how prolific Oates is, but the real significance of her literary fecundity liesin the power and daring of her novels and short stories and how they provoke and disturb us by tapping into our most elemental fears and desires.
They observed no effects from semen quality on fertility of fecundity regardless of age, despite the differences found in semen quality.
A decline in fecundity occurs if fleas don't feed on their preferred host species.
Feathers are strewn on the floor and poked through floral foam, as images of ripe fruits are inserted between them, all symbolising the fecundity of «Mother Nature».
Lee Krasner Fecundity 1960 Oil on canvas 87 3/8 x 70 1/2 inches © 2017 The Pollock - Krasner Foundation / Artists Rights Society (ARS), New York Image courtesy of Paul Kasmin Gallery
Assume vivid astro focus actual variations accelerate fecundity series # 1, 2014 Painting - KRINK paint on handmade Japanese paper in handpainted wood frame 104 x 73.5 cm (40.94 x 28.94 in)
Expanding on the rabbit and hare's traditional portrayal as symbols of lust and fecundity, Blake's «rabbit» has evolved into the artist's iconographic surrogate for gay men (playing off the stereotype of the promiscuous gay man) as well as a threshold figure for black / white and male / female.
For equivalent food supply and fecundity rates, this variability in generation time will obviously have a very strong effect on the number of adult beetles emerging per unit time to attack new host trees (although the thermal requirements for the full developmental cycle can mitigate this somewhat).
But Dr. Lenoir said he had observed that the fecundity of queen ants appeared to decrease when phthalates were placed on their abdomens, and that he planned to investigate that idea further.
Fat and female fecundity: Prospective study of effect of body fat distribution on conception rates.