Ammonia-oxidizing archaea and bacteria are structured by geography in biological soil crusts across North American arid lands

Agriculture & Biology

• biological soil crusts 100%
• geography 76%
• arid lands 70%
• Archaea 68%
• ammonia 54%
• bacteria 36%
• deserts 23%
• oxidants 15%
• ammonia monooxygenase 13%
• biogeochemistry 12%
• Chihuahuan Desert 11%
• Sonoran Desert 11%
• Western United States 10%
• nitrification 9%
• ecological differentiation 9%
• coolers 8%
• gene targeting 8%
• basins 7%
• plateaus 7%
• quantitative polymerase chain reaction 6%
• clones 5%
• microorganisms 5%
• enzymes 3%
• temperature 3%
• genes 2%
• methodology 2%

Earth & Environmental Sciences

• soil crust 87%
• arid land 84%
• geography 62%
• ammonia 51%
• bacterium 41%
• desert 30%
• gene 11%
• crust 10%
• biogeochemistry 8%
• clone 7%
• targeting 7%
• fixation 7%
• niche 6%
• library 6%
• nitrification 6%
• enzyme 5%
• code 5%
• plateau 5%
• land 4%
• basin 3%
• temperature 2%
• method 1%