Sentences with phrase «number of eggs laid»

NestWatch is a nationwide monitoring program designed to track status and trends in the reproductive biology of birds, including when nesting occurs, number of eggs laid, how many eggs hatch, and how many hatchlings survive.

I guarantee that there's also a correlation of more than 80 % between the height of a baby kangaroo in Melbourne and the cumulative number of eggs laid by a hen in Oklahoma since early 2009.

Believe it or not, by monitoring the number of eggs laid, scientists are able to better understand how our genes affect brain function.

Compare wingspan, weight, number of eggs laid and...

The researchers looked at correlations between egg shape and traits associated with the species of bird, including nest type and location, clutch size (the number of eggs laid at a time), diet and flight ability.

The study assessed the potential changes in number of eggs laid in a nest, incubation start date and nest survival for 2050 and 2080.

Every aspect of the beetle's life is affected by temperature — from the number of eggs it lays, to its ability to disperse, to the rate at which the beetle moves from one life stage to the next (for example, from pupa to adult), to the survival of the beetle during cold periods.

Not exact matches

A number of tribes of Australian Aboriginals believe that the World was created by a great snake shaking and laying an egg during the dreamtime.

Laying hens have also been selectively bred to produce unnaturally large numbers of eggs - up to 330 per year.

If the number of eggs hatching at La Escobilla plummets, the number of females that arrive each year to lay should follow suit a few years later.

After an egg is laid, researchers can tell how much sperm the female has left by counting the number of sperm caught between the egg membrane and the shell.

So females that lay a larger number of smaller eggs end up with more surviving offspring.

As the eggs hatch, she will try to determine the effect of their parents» synchronized singing — whether truly harmonious matings produce unexpected benefits, such as offspring that have a longer life span or that lay an increased number of eggs.

Then he looks for families that lay the greatest number of eggs, rather than individual birds that perform well.

A team at the University of Cambridge in the United Kingdom has discovered that the reclusive 15 - millimeter insect, which lays its eggs underground next to small animal corpses, uses a slime cocktail to manipulate the number and kinds of microbes its young are exposed to as they eat the provided meat.

There are a number of wasp species that puncture other insects and lay eggs directly inside their bodies.

This doesn't achieve much in terms of controlling toad populations, because a single male can fertilize the clutches of many females — so the few lucky males that are left behind may have a pretty exciting life, and the number of fertilized eggs laid in that pond isn't reduced at all.

But labeling won't help the increasing numbers of people who are starting to react to the flesh of fish, poultry, lamb or cattle that were fattened on soy feed and to eggs laid by soy fed chickens.

This is the beauty of digital eggs: They are unbreakable, and I can lay an infinite number of them.

Veterinarians have found that an injection of Depo - Provera (medroxyprogesterone acetate) sometimes ends egg - laying and seasonal aggression in parrots; but this hormone can have a number of undesirable side effects as well.

Roundworms are another particularly difficult parasite to eliminate in that they lay extreme numbers of eggs that can survive outside the body of a host in soil for as long as ten years.

Clinical studies showed this isoxazoline started killing fleas in three hours, virtually eliminated fleas within eight hours, and it reduced the number of live fleas from ≥ 96.2 % to 100 % through day 35.1 Simparica's rapid onset of action means that fleas are killed before they have a chance to lay eggs, 1 preventing home infestations and providing relief to dogs suffering with flea allergy dermatitis.1 Studies also showed that Simparica started killing ticks in eight hours, 5 remaining ≥ 96.9 % effective for 35 days against weekly re - infestations.6 - 9

Complications to egg laying is the number - one cause of death in cockatiels.

The number of flea eggs laid then declines until it reaches the lowest point shortly after sunrise.

Since hens lay large numbers of eggs generally for no more than 2 - 3 years, you can also adopt a retired hen (that may still produce a few eggs per week) from a rescue or sanctuary.

These actions have led to an increase in the number of turtles coming to the beach for laying eggs.

He might as well deduct the number of eggs our chickens used to lay in a week (about 28) from total atmospheric CO2.

Over sufficient time, you'll see the population oscillate up and down due to random fluctuations, but everytime you'll see that the number of eggs increases before the number of chickens increase (since chickens can lay extra eggs, but a single egg can't — or almost never — gives rise to multiple chickens).

Illegal logging in the Mexican forests where they spend the winter, new climate patterns and the disappearance of milkweed — the only plant on which monarchs lay their eggs and on which their caterpillars feed — are being blamed for their shrinking numbers.