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As of 2020, New York City Department of Parks and Recreation is the steward of most of the 2.5+ million trees growing within New York City. [18] The New York City Tree Map is an interactive map by the parks department that catalogues more than 850,000 trees in the city.
The climate of New York City shapes the environment with its cool, wet winters and hot, humid summers with plentiful rainfall all year round. As of 2020, New York City held 44,509 acres of urban tree canopy with 24% of its land covered in trees. [1] [2] As of 2020, the population of New York City numbered 8.8 million human beings. [3]
The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5. The path along the chain can form either a one-way ...
In the simplest scheme, the first trophic level (level 1) is plants, then herbivores (level 2), and then carnivores (level 3). The trophic level equals one more than the chain length, which is the number of links connecting to the base. The base of the food chain (primary producers or detritivores) is set at zero.
A pyramid of biomass shows the relationship between biomass and trophic level by quantifying the biomass present at each trophic level of an ecological community at a particular time. It is a graphical representation of biomass (total amount of living or organic matter in an ecosystem) present in unit area in different trophic levels.
This list includes street trees of New York City; as well as trees planted in New York City parks and public spaces: [1] [2] [3] ... New York City Tree Map
Of all the net primary productivity at the producer trophic level, in general only 10% goes to the next level, the primary consumers, then only 10% of that 10% goes on to the next trophic level, and so on up the food pyramid. [1] Ecological efficiency may be anywhere from 5% to 20% depending on how efficient or inefficient that ecosystem is.
In New York, specifically, the South Bronx has far fewer trees than New York City neighborhoods with higher income levels. Tree canopy coverage in the Bronx, in general, is the lowest of all five New York City boroughs. There is only 19.86% canopy coverage provided by street trees, which is much lower than the citywide average of 23.98%.