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Desert. A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid.
Desert ecology is the study of interactions between both biotic and abiotic components of desert environments. A desert ecosystem is defined by interactions between organisms, the climate in which they live, and any other non-living influences on the habitat. Deserts are arid regions that are generally associated with warm temperatures; however ...
A biome ( / ˈbaɪ.oʊm /) is a distinct geographical region with specific climate, vegetation, and animal life. It consists of a biological community that has formed in response to its physical environment and regional climate. [ 1][ 2] Biomes may span more than one continent. A biome encompasses multiple ecosystems within its boundaries.
Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. [ 1] Deserts and xeric (ancient Greek xērós, “dry") shrublands form the largest terrestrial biome, covering 19% of Earth 's land surface area. [ 2] Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than ...
Chaparral is a coastal biome with hot, dry summers and mild, rainy winters. The chaparral area receives about 38–100 cm (15–39 in) of precipitation a year. This makes the chaparral most vulnerable to fire in the late summer and fall. Chamise (Adenostoma fasciculatum) resprouting after a high-intensity chaparral fire.
Pilocereus engelmannii Lem. The saguaro ( / səˈ ( ɡ) wɑːroʊ / sə-(G)WAH-roh, [ 5] Spanish: [saˈɣwaɾo]; Carnegiea gigantea) is a tree-like cactus species in the monotypic genus Carnegiea that can grow to be over 12 meters (40 feet) tall. It is native to the Sonoran Desert in Arizona, the Mexican state of Sonora, and the Whipple ...
Nefud Desert – a desert in northern part of the Arabian Peninsula. Ramlat al-Sab`atayn – a desert in north-central Yemen. Wahiba Sands – a desert covering great parts of Oman. Aerial view of Negev. Judaean Desert – a desert in eastern Israel and the West Bank. Negev – a desert located in southern Israel.
e. An ecosystem (or ecological system) is a system that environments and their organisms form through their interaction. [ 2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which ...