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Nurse plants also aid with recovery after herbivore grazing, because they provide higher levels of resources to the plant. [8] The effect of nurse plants on any particular species is dependent upon species richness and the dispersal strategy of the organism. [8] Nurse plants can help with seedling recruitment and protect plants from granivory.
This plant acts as a nurse plant for other species, providing shade and increased soil nitrogen for young growing plants. It also protects seedlings from herbivory. It is the main nurse plant for saguaro in Organ Pipe National Monument. [4] It also serves as nurse plant for yellow paloverde, ocotillo, and some prickly pear species. [7]
A nurse tree in an Oregon forest Young saguaros under a nurse tree. A nurse tree is a larger, faster-growing tree that shelters a smaller, slower-growing tree or plant. The nurse tree can provide shade, shelter from wind, and protection from animals that would feed on the smaller plant and significant changes in temperature. [1]
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For example, seed germination and survival in harsh environments is often higher under so-called nurse plants than on open ground. [1] [3] A nurse plant is one with an established canopy, beneath which germination and survival are more likely due to increased shade, soil moisture, and nutrients. Thus, the relationship between seedlings and ...
Oats as nurse crop for alfalfa. In agriculture, a nurse crop is an annual crop used to assist in establishment of a perennial crop. [1] The widest use of nurse crops is in the establishment of legumaceous plants such as alfalfa, clover, and trefoil. [1] [2] Occasionally, nurse crops are used for establishment of perennial grasses. [citation needed]
Some plants use coarse woody debris as habitat. Mosses and lichens may cover logs, while ferns and trees may regenerate on the top of logs. Large fragments of CWD that provide such habitat for herbs, shrubs, and trees are called nurse logs. [8] CWD can also protect young plants from herbivory damage by
Further, the Forest Service fought fires on 2.996 million acres (12,120 km 2) of land in 2007. [15] The Forest Service organization includes ranger districts, national forests, regions, research stations and research work units and the Northeastern Area Office for State and Private Forestry. Each level has responsibility for a variety of functions.