The process of redlining can lead to further decline as houses are left vacant for long periods, leading to further decline in value. Though accurate information about the population of wild Mexican axolotls is hard to come by, recent evidence suggests that the population has declined alarmingly in recent decades.
The axolotl is a lentic species, meaning it inhabits still-water lakes. The declining axolotl population in Mexico City is an example of _____ in overcrowded cities.
The ecologist Luis Zambrano attributes the axolotl’s rapid decline to two primary threats: non-native fish and pollution.
For example, in 1998 there were thought to be around 6,000 axolotls per square kilometre of the Xochimilco. Axolotl soup is considered a remedy for respiratory diseases.
Changes to natural environments and native species". Current efforts revolve around building axolotl “sanctuaries” in Lake Xochimilco, in which the axolotl are separated from the invasive fish by wooden gates. While there are multiple reasons for the decline of the axolotl population in Lake Xochimilco, including invasive species of fish, one of the main problems is that the lake is very polluted.
Accustomed to being a top predator in its habitat, this species has begun to suffer from the introduction of large fish into its lake habitat.
But in Lake Xochimilco, it does not look like the wild axolotl population as a whole will rebound quickly or easily. Draining the lakes of Xochimilco for farming, the use of water-contaminating pesticides, and water pollution from nearby plants and from local residents has led to a catastrophic decline in axolotl populations.
The axolotl reproduces relatively quickly, but the real challenge begins when the animals are reintroduced into their compromised habitat. Even though they grow four legs, they don’t leave the water even as adults. The Axolotl is a critically endangered species because of its extensive use in scientific research. If the wild population were to die off, it would be a severe lost to the scientific community that studies them. Native populations of the axolotl (Ambystoma mexicanum), a microendemic salamander from Central Mexico, have seen alarming decline in the last decades owing to habitat loss caused by urban growth. In the lake complex of Xochimilco, the axolotl is the top predator, but now is facing a new problem leading to a decline in population numbers.
The dramatic decline of axolotls has raised awareness about the deteriorating Xochimilco ecosystem. A prior estimation (1998) resulted in more than 6000 individuals found in … The reduction of water quality is the main contributing factor in the decline of population of axolotls. 4.6 5 …
The recent decline in population has substantially impacted genetic diversity among populations of axolotl, making it difficult to further progress scientifically.
Use of the animals for food and medicinal purposes, and predation from introduced fish have also contributed to Axolotl decline, and a 2004 survey failed … Poorer neighborhoods will lose future investment.
1 See answer Answer 4.6 /5 6. mariemkliz +10 dome7w and 10 others learned from this answer The correct answer is "B.
Population decline of axolotls—Bioscience. In 2009, experts estimated that the axolotl population had fallen 90 percent in the past four years, a decline further exacerbated by urbanization. Unfortunately, it was drained artificially in order to avoid the potential risk of flooding on residential areas. The ecologist Luis Zambrano attributes the axolotl’s rapid decline to two primary threats: non-native fish and pollution.
It is composed mostly of fresh water which is the ideal condition for the Axolotl. (1) The rate of regeneration slows as the axolotl increases in age, from weeks in larval animals to months in sexually mature adults.
Population crash. The axolotls have been labeled as critically endangered since 2006, due to the small population size and declining trend.
Axolotls are on the IUCN red list of critically endangered species with a continued trend of population decline in the wild.
Encroaching plants can cut off oxygen in lakes and rivers. Wild axolotls are critically endangered. The last remnant of its distribution is in a highly heterogeneous urban–rural water system in the Xochimilco region, at the southern edge of Mexico City.
The axolotl’s natural habitat in the lake complex has changed dramatically in recent decades as its water has been used to quench thirsty Mexico City and as predatory fish have been introduced into the system.