Variasi-variasi lingkungan setempat

Variasi-variasi lingkungan setempat berupa iklim, lingkungan, topografi, dan usia geologi juga merupakan faktor-faktor yang memengaruhi pola kekayaan spesies (Huston 1994; Gaston 2000). Dalam komunitas daratan, kekayaan spesies cenderung meningkat seiring dengan penurunan elevasi, peningkatan radiasi sinar matahari, dan peningkatan curah hujan. Di lautan terbuka, ke anekaragaman spesies mencapai puncaknya pada kedalaman 2.000 sampai 3.000 m, dengan keanekaragarnan rendah pada daerah dekat permukaan dan daerah yang lebih dalam. Kekayaan spesies dapat lebih tinggi di daerah topografi yang kompleks, misalnya pegunungan dan lembah. Di sarnping itu, usia geologis yang lebih tua memberi lebih banyak variasi lingkungan, yang memungkinkan terjadinya isolasi genetik, adaptasi lokal, dan spesiasi. Daerah dengan geologi yang kompleks (misalnya, pulau-pulau di Indonesia bagian Timur, serta Filipina; lihat Bab 6) dapat menghasilkan berbagai kondisi tanah dengan batas-batas yang jelas, sehingga


Tabel 1.2. Jumlah spesies mamalia di sejurnlah negara tropika dan beriklim dingin dibuat berpasangan sebagai perbandingan.

mendorong terbentuknya berbagai komunitas dan spesies yang beradaptasi dengan masing-masing tipe tanah
.
Berapa banyak spesies di seluruh dunia?

Results (English) 1:

Variations of the local environment in the form of climate, environment, topography, geological age and also the factors that influenced the pattern of species richness (Huston 1994; Gaston 2000). The community's land, the richness of species tend to increase in line with the drop in elevation, enhancement of radiation rays, and increased rainfall. In the open ocean, to anekaragaman species culminated at a depth of 2,000 to 3,000 m, with low keanekaragarnan on the area near the surface and deeper areas. Species richness can be higher in regions of complex topography, such as mountains and valleys. In sarnping it, the older geological age give more environmental variation, which allows the occurrence of genetic isolation, local adaptation and speciation. Areas with geological complex (for example, the islands of the eastern part of Indonesia, and the Philippines; see Chapter 6) can produce a wide range of soil conditions with clear boundaries, so Table 1.2. The number of mammal species in tropical and temperate countries sejurnlah cold made in pairs by comparison. encourage the formation of various communities and species to adapt to each type of land. How many species around the world?

Results (English) 2:

Variations in the local environment such as climate, environment, topography, geology and age are all factors that affect patterns of species richness (Huston 1994; Gaston 2000). In mainland communities, species richness tends to increase with decreasing elevation, increased solar radiation, and increased rainfall. In the open ocean, to the diversity of species peaked at depths of 2,000 to 3,000 m, with a low keanekaragarnan the regions near the surface and the inner area. Species richness may be higher in areas of complex topography such as mountains and valleys. In sarnping the older geological age gives more environmental variation, allowing the occurrence of genetic isolation, local adaptation and speciation. Areas with complex geology (eg, islands in eastern Indonesia, and the Philippines; see Chapter 6) can produce a variety of soil conditions with clear boundaries, so that


Table 1.2. A number of the number of mammal species in tropical countries and cold climates are paired as a comparison.

Encourage the formation of communities and species that adapt to each type of land
.
How many species around the world?