Please answer the following question: Information: - Guadalajara is the capital and largest city of the Mexican state of Jalisco, and the seat of the municipality of Guadalajara. The city is in the central region of Jalisco in the Western-Pacific area of Mexico. With a population of 1,495,189 it is Mexico's fourth most populous municipality. The Guadalajara Metropolitan Area includes seven adjacent municipalities with a reported population of 4,328,584 in 2009, making it the second most populous metropolitan area in Mexico, behind Mexico City. The municipality is the second most densely populated in Mexico, the first being Ciudad Nezahualcoyotl in the State of Mexico. It is a strong business and economic center in the Bajio region. - Bean is a common name for large seeds of several genera of the flowering plant family Fabaceae (also known as Leguminosae) which are used for human or animal food. - Toluca , officially called Toluca de Lerdo , is the state capital of State of Mexico as well as the seat of the Municipality of Toluca. It is the center of a rapidly growing urban area, now the fifth largest in Mexico. It is located west-southwest of Mexico City, about 40 minutes by car to the western edge of the city. According to the 2010 census, the city of Toluca has a population of 819,561. The city is the fifth largest in Mexico in population. The municipality of Toluca, along with thirteen other municipalities, make up the metropolitan population of 1,775,337 in Greater Toluca , making it the fifth most populous metropolitan area in Mexico. - Guatemala (, or ), officially the Republic of Guatemala, is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, Honduras to the east and El Salvador to the southeast. With an estimated population of around 15.8 million, it is the most populated state in Central America. A representative democracy, Guatemala's capital and largest city is Nueva Guatemala de la Asuncion, also known as Guatemala City. - The Gulf of Mexico is an ocean basin largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Alabama, Florida, Louisiana, Mississippi and Texas border the Gulf on the north, which are often referred to as the "Third Coast" in comparison with the U.S. Atlantic and Pacific coasts, or sometimes the "south coast", in juxtaposition to the Great Lakes region being the "north coast." One of the gulf's seven main areas is the Gulf of Mexico basin. - Firs (Abies) are a genus of 4856 species of evergreen coniferous trees in the family Pinaceae. They are found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the range. Firs are most closely related to the genus "Cedrus" (cedar). Douglas firs are not true firs, being of the genus "Pseudotsuga". - In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are usable as lumber or plants above a specified height. Trees are not a taxonomic group but include a variety of plant species that have independently evolved a woody trunk and branches as a way to tower above other plants to compete for sunlight. In looser senses, the taller palms, the tree ferns, bananas and bamboos are also trees. Trees tend to be long-lived, some reaching several thousand years old. The tallest known tree, a coast redwood named Hyperion, stands high. Trees have been in existence for 370 million years. It is estimated that there are just over 3 trillion mature trees in the world. - Mexico (, modern Nahuatl ), officially the United Mexican States, is a federal republic in the southern half of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Covering almost two million square kilometers (over 760,000sqmi), Mexico is the sixth largest country in the Americas by total area and the 13th largest independent nation in the world. With an estimated population of over 120 million, it is the eleventh most populous country and the most populous Spanish-speaking country in the world while being the second most populous country in Latin America. Mexico is a federation comprising 31 states and a federal district that is also its capital and most populous city. Other metropolises include Guadalajara, Monterrey, Puebla, Toluca, Tijuana and Leon. - Pine squirrels are squirrels of the genus Tamiasciurus, in the Sciurini tribe, of the large family Sciuridae. - The Douglas squirrel ("Tamiasciurus douglasii") is a pine squirrel found in the Pacific coastal states and provinces of North America. It is sometimes known as the chickaree or pine squirrel, although these names are also used for the American red squirrel. Variant spellings of the common name are Douglas' squirrel and Douglas's squirrel. The Native Americans of Kings River called it the "Pillillooeet", in imitation of its characteristic alarm call. - In botany, an evergreen is a plant that has leaves throughout the year, always green. This contrasts with deciduous plants, which completely lose their foliage during the winter or dry season. There are many different kinds of evergreen plants, both trees and shrubs. Evergreens include: - The genus Sciurus contains most of the common, bushy-tailed squirrels in North America, Europe, temperate Asia, Central America and South America. - An invasive species is a plant, fungus, or animal species that is not native to a specific location (an introduced species), and which has a tendency to spread to a degree believed to cause damage to the environment, human economy or human health. - Monterrey, is the capital and largest city of the northeastern state of Nuevo Leon, in Mexico. The city is anchor to the third-largest metropolitan area in Mexico and is ranked as the ninth-largest city in the nation. Monterrey serves as a commercial center in the north of the country and is the base of many significant international corporations. - Cedrus (common name cedar) is a genus of coniferous trees in the plant family Pinaceae. They are native to the mountains of the western Himalayas and the Mediterranean region, occurring at altitudes of 1,5003,200m in the Himalayas and 1,0002,200m in the Mediterranean. - The American red squirrel ("Tamiasciurus hudsonicus") is one of three species of tree squirrel currently classified in the genus "Tamiasciurus", known as the pine squirrels (the others are the Douglas squirrel, "T. douglasii" and Mearns's squirrel, "T. mearnsi"). American red squirrels are also referred to as pine squirrels, North American red squirrels, boomers, and chickarees. They are medium-sized (200250g) diurnal mammals that defend a year-round exclusive territory. The diet of these tree squirrels is specialized on the seeds of conifer cones. As such, they are widely distributed across North America wherever conifers are common, except on the Pacific coast, where they are replaced by Douglas squirrels. Recently, American red squirrels have been expanding their range to include primarily hardwood areas. - Tree squirrels are the members of the squirrel family (Sciuridae) most commonly referred to as "squirrels". They include over a hundred primarily tree-dwelling species, native to all continents except Antarctica and Australia. They do not form a single natural, or monophyletic, group, but instead are related to the various other animals in the squirrel family, including ground squirrels, flying squirrels, marmots, and chipmunks. The defining characteristic that is used to determine which of the various species of Sciuridae are tree squirrels is therefore not so dependent on their physiology, but their habitat. Tree squirrels live mostly among trees, as opposed to other squirrels that live in burrows in the ground or among rocks. However, there is one exception to this rule, as physiological distinction does make a difference in regard to flying squirrels, who also make their home in trees, but have unique physical characteristics that separate them from their tree squirrel cousins (specifically, special flaps of skin that act as glider wings, allowing them to "fly"). - Pseudotsuga is a genus of evergreen coniferous trees in the family Pinaceae. Common names include Douglas fir, Douglas-fir, Douglas tree, and Oregon pine. "Pseudotsuga menziesii" is widespread in western North America and is an important source of timber. The number of species has long been debated, but two in western North America and two to four in eastern Asia are commonly acknowledged. Nineteenth-century botanists had problems in classifying Douglas-firs, due to the species' similarity to various other conifers better known at the time; they have at times been classified in "Pinus", "Picea", "Abies", "Tsuga", and even "Sequoia". Because of their distinctive cones, Douglas-firs were finally placed in the new genus "Pseudotsuga" (meaning "false hemlock") by the French botanist Carriere in 1867. The genus name has also been hyphenated as "Pseudo-tsuga". - The Pinaceae (pine family) are trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, larches, pines and spruces. The family is included in the order Pinales, formerly known as Coniferales. Pinaceae are supported as monophyletic by their protein-type sieve cell plastids, pattern of proembryogeny, and lack of bioflavonoids. They are the largest extant conifer family in species diversity, with between 220 and 250 species (depending on taxonomic opinion) in 11 genera, and the second-largest (after Cupressaceae) in geographical range, found in most of the Northern Hemisphere, with the majority of the species in temperate climates, but ranging from subarctic to tropical. The family often forms the dominant component of boreal, coastal, and montane forests. One species, "Pinus merkusii", grows just south of the equator in Southeast Asia. Major centres of diversity are found in the mountains of southwest China, Mexico, central Japan, and California. - Asia is Earth's largest and most populous continent, located primarily in the eastern and northern hemispheres and sharing the continental landmass of Eurasia with the continent of Europe. Asia covers an area of , about 30% of Earth's total land area and 8.7% of the Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Asia is notable for not only its overall large size and population, but also dense and large settlements as well as vast barely populated regions within the continent of 4.4 billion people. - Pseudotsuga menziesii, commonly known as Douglas fir or Douglas-fir, is an evergreen conifer species native to western North America. - Mearns 's squirrel ( Tamiasciurus mearnsi ) is a species of rodent in the family Sciuridae . It is endemic to pine and fir forests at altitudes of 2,100 -- 2,400 metres ( 6,900 -- 7,900 ft ) in central Baja California in Mexico . This endangered species occurs in low densities and is threatened by habitat loss . It is possibly also threatened by competition from the eastern gray squirrel , which was introduced to the range of Mearns 's squirrel in 1946 , but may not be present anymore . Mearns 's squirrel is closely related to the Douglas squirrel , but far less is known about its behavior , which was first studied in detail in 2004 - 2005 . - Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus "Sciurus". It is native to eastern North America, but has since been introduced to European regions where it has become an invasive species. What is the relationship between 'mearns's squirrel' and 'pine squirrel'?
Answer:
parent taxon