The study, published this week in Nature, found that unrelated male flies compete more fiercely for females» attention than related flies, resulting in shorter lifespans for males and reduced
fecundity for females.
«This resulted in a much lower day - specific probability of ovulation and
fecundity for bonobos than comparable findings for chimpanzees,» said coauthor Tobias Deschner.
Not exact matches
The quest
for «strong, keen, efficient and great» offspring came to the fore during the past century, when the dominant classes became concerned with making
fecundity discriminating.
If we start with consciousness as a blank slate that then evolves (whether as an individual or as a species) to adapt to the necessities of its self - preservation (as an individual or as a species), we will never get to an argument
for the goodness of fidelity,
fecundity, etc..
(3:22) In the first, man is given a positive injunction,
for fecundity and dominion; in the second, in need of restraint, he is given a negative commandment.
Aristotle,
for example, was sympathetic to the landed aristocracy — who appropriate
for themselves the lion's share of nature's bounty — and hostile to merchants, who earn a living by exploiting the «unnatural»
fecundity of money in the marketplace.
One speaks,
for example, of the wheel as a solar symbol, of the cosmogonic egg as the symbol of the non-differentiated totality, or of the serpent as a chthonian, sexual, or funeral symbol, etc. (In like manner it is agreed that the term «symbolism» should be reserved
for a structurally coherent ensemble,
for example, we speak of aquatic symbolism, the structure of which can not be deciphered except through studying a great number of religious facts which are heterogeneous in appearance, such as baptismal and lustration rites, aquatic cosmogonies, myths relative to floods or to marine catastrophes, myths featuring
fecundity through contact with water, etc. [Cf. Eliade, Patterns in Comparative Religion, pp. 188 ff., and Images et symboles, pp. 164 ff.
The search
for Truth and Beauty, Science and Art, are able to tap «the infinite
fecundity of nature,» and thus become «sources of Harmony» Whitehead, Adventures 272).
Using these images and 20 years of genetic parentage data, the researchers assessed whether the variation in red ornaments influenced
fecundity — that is they produced more offspring — and is heritable in male and female rhesus macaques, two necessary conditions
for the trait to be considered under sexual selection.
These findings are important
for understanding the evolution of signals of female reproductive state, how they influence male and female mating strategies, and how decoupling visual signals of
fecundity from ovulation may affect intersexual conflict.
This work suggests that in snapping shrimp species that are less cooperative, female - female conflict within the colony has selected
for queens that retain weapons at a significant cost to
fecundity.
This limits the invasion of the roots by nematodes, reduces the nematodes»
fecundity and compromises the formation of root galls,» explains Dr. Ainhoa Martinez - Medina, first author of the study and scientist at the German Centre
for Integrative Biodiversity Research (iDiv) and the Friedrich - Schiller - University Jena (FSU).
Fecundity measurement following RNAi (injection method) was conducted using a total of 50 young adult worms (25 control and 25 inhibited by RNAi specific
for W01A8.1).
Because of quirks of their haplodiploid genetics, female workers share more genes with their sisters than with their own offspring, so it makes competitive sense
for them to sacrifice their own
fecundity to help their colony queen mother produce more sisters.
Because farm herds are large and often kept by families
for generations, farmers were able to «tease out» data indicating drops in production, increases in mortality, declining
fecundity, and a steady rise in disease and illness.
In the Main Space Self - Proliferation features over 30 internationally, nationally and locally renown artists whose work explores the natural female propensity
for replication and
fecundity.
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.
These paintings were far from negligible; in fact, painting
for painting, it could be persuasively argued that her 1944 canvas Natural History, a symbolical representation in blood colours of female
fecundity, is better than equivalent early works by Rothko and Pollock.
«The answer may lie in the fact that evolution selects
for survival and
fecundity, while we were selecting
for increased productivity,» he said.
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 somewha
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 somewha
for the full developmental cycle can mitigate this somewhat).
For example, McQuillan et al. [74] explored how preferred completed family size, attitudes toward motherhood, age, parity, ethnicity, and self - perceived
fecundity related to acceptance of a new pregnancy amongst women in the USA.