Snowshoe hare is the primary food of the lynx. The population cycles of these two species are closely linked.
When hares are plentiful, lynx eat little else and take about two hares every three days.
Lynx prey upon mice, voles, squirrels, grouse, ptarmigan and carrion when hares are scarce. These food sources often do not meet the lynx's nutritional needs. Some lynx cannot maintain their body fat reserves on this type of diet and become more vulnerable to starvation or predation. Other lynx manage to remain healthy by using alternative prey and food sources when the hare population is low. When snowshoe hares are scarce, many lynx leave their home range in search of food.
Hare populations across most of the boreal forest experience dramatic fluctuations in a cycle that lasts 8-11 years. At the peak of the cycle, snowshoe hares can reach a density of up to 1500 animals per km2. The habitat cannot support this many animals. As predation increases and starvation sets in, the population starts to decline. Continued predation due to high populations of lynx and other predators increases the hare population decline.
When the hare population reaches a low level, it stabilizes, for several years. The food plants slowly recover and the hare population starts to increase again. Since hares have several litters each year, the hare population increases rapidly. After a year or two at high densities, the hare cycle repeats itself.
The lynx population decline follows the snowshoe hare population crash after a lag of one to two years. As hare numbers start to decline, lynx continue to eat well because they can easily catch the starving hares.
When hares become scarce, lynx numbers also decline. Their lack of fat reserves makes them less able to live through starvation and cold temperatures. Food shortages also cause behavioural changes such as increased roaming and loss of caution. This increases their vulnerability to predation.
Malnourishment has the most significant effect upon lynx reproduction and population levels. When females are in poor condition, fewer breed and not all of those bred produce litters. Litters are smaller, and most, if not all, of the few kittens born die soon after birth. This means that for a period of three to five years, few or no kittens survive to adulthood. Studies have shown the level of kittens in a lynx population may be zero at the population low and as high as 60 percent when t numbers increase. Low lynx population levels last for three or four years. When hares become plentiful again, the lynx population begins to increase as well.
The highs and lows of the lynx population cycle do not occur at the same time across the NWT. For example, in the early 1990s, lynx numbers peaked two years later in northwestern NWT than in the southwestern NWT.
Answer: Higher rents causing displacement of existing residents.
Explanation:
Gentrification is the process of remodeling a neighborhood, street or building to increase its value and attract a population of a higher social status.
This process is highly controversial since the current inhabitants of the area usually cannot bear the costs of continuing to live in the same neighborhood and must move. Residents are sometimes forcibly evicted before remodeling.
<em>I hope this information can help you.</em>
Answer:
Mountains over 3,000 feet (914 metres) in height are called the Munros.
Explanation:
The answer to this question is probably B. They were not limited to growing under water and could therefore spread in land. Gymnosperms are plants that produce seeds that are not carried in the ovary or fruit. Their seeds do not have an outer covering or shell. The Gymnosperms are believed to be the first plants to have seeds.
Answer:
1-false, since its shape is only elliptical
2-true, Large elliptical galaxies often have a system of globular clusters, double nuclei, and large numbers of satellite galaxies. One possible interpretation is galactic cannibalism, that is, the absorption of a smaller galaxy by a larger one - for example, our Milky Way is known to be "digesting" a couple of smaller galaxies today. Therefore they are assimilating or appearing new stars.
3- false, type 2 irregular galaxies are generally new galaxies but the same does not happen with elliptical ones.
4-true, since elliptical galaxies have new and old stars and irregular ones almost all new stars
Explanation:
Types of galaxies. Galaxies have three different configurations: elliptical, spiral, and irregular. A somewhat more specific description, based on its appearance, is provided by the Hubble sequence, proposed in 1936
