Sentences with phrase «mating patterns»

This suggests potentially complex mating patterns with ample scope for female choice.»

Despite their monogamous mating patterns, however, the birds really don't spend much time together, according to a new study.

This is extremely difficult to do, as humpbacks are too large to be put in captivity for study, and no good methods for tracking individual mating patterns exist.

Höglund adds that these observations may change scientists» views of how much mating patterns in birds can change.

«I thought she might not know what she's doing here,» says Parham, noting the MHC genetics are notoriously difficult to study and that her fieldwork had focused on mating patterns.

Alternatively, as Underhill delicately puts it, «nonrandom mating patterns,» in which only a few males pass their Y chromosomes to many females, could explain the difference.

Then, beginning about 1900 years ago or somewhat later, mating patterns shifted dramatically.

This is the first study of its kind and it furthers our understanding of the relationship between female mating patterns and the number of micropyles in her eggs.

Modern climate change may also affect future mating patterns and sexual dimorphism of pinnipeds, Cullen said.

Other superficial changes between the Porsche and regular Mate 9's are a redesigned bottom edge, with one following the familiar Mate pattern while the Porsche assumes an iPhone 6 layout with a headphone jack on one side and speaker on the other.

There are mountains of supporting data that show differences in brain size, skull shape, testosterone levels, crime rates, mating patterns, etc — and yet liberals retain the FANTASY that «all the races are equal» and that Blacks are just as likely as Whites to launch space shuttles, but somehow — they just haven't had the chance yet.

From an anthropological perspective, different marriage and mating patterns (including monogamy) are adaptations to different economic, social, and demographic conditions.

The study, led by Dr Allan Debelle and Dr Rhonda Snook in the University's Department of Animal and Plant Sciences, looked at the mating patterns of fruit flies after they evolved for 100 generations in either polyandrous populations (where several males have to compete for a single female) and monogamous populations (where each male has access to only one female).

The researchers saw the same trend when they applied the model to the mating pattern of humans societies in which a female leaves home to join her husband's family.

In the new study, Johnstone and Cant used a mathematical model to analyze the kinship dynamics in a population with this mating pattern.

A. arktos follows the mating patterns of others in its genus, copulating for up to 14 hours at a time and with multiple partners in order to ensure the survival of its lineage.

In the following season, the researchers noted the birds» mating patterns, and how these were influenced by changes that might have occurred in particular birds» feather colours.

Previously, scientists didn't know whether this was attributable to feeding or mating patterns.

Berkeley evolutionary biologist Erica Bree Rosenblum is studying this phenomenon in multiple species, including lizards, invertebrates and mammals, comparing them with their brown relatives in the adjacent desert and tracking changes in everything from genes to mating patterns.

What do these mating patterns mean?

Researchers examined the two pure swordtail species, Xiphophorus birchmanni and Xiphophorus malinche, as well as the hybrids, tagging the animals and extracting DNA to probe their mating patterns.

He is also made privy to the mating patterns of these creatures, whose tendency to inter-breed creates such new strains of monsters as the «shadmock» (a vampire - like entity with a deadly high - pitched whistle) and the «humgoo» (the sullen offspring of a human and a flesh - eating ghoul).

Meanwhile, light pollution wreaks all kinds of havoc on the natural world, from affecting birds» nighttime navigation to disorienting baby sea turtles to disrupting the mating patterns of fireflies.