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Hopkins' bioclimatic law states that in North America east of the Rockies, a 130-m (400-foot) increase in elevation, a 4° change in latitude North (444.48 km), or a 10° change in longitude East (two-thirds of a time zone) will cause a biological event to occur four days later in the spring or four days earlier in the fall. [1]
June 2 World Bicycle Day [75] June 3 World Environment Day: June 5 Solomon Memorial Day: June 5 World Oceans Day: June 8 Coral Triangle Day: June 9 International Lynx Day [76] [77] June 11 National Cougar Day [78] June 12 Global Wind Day: June 15 World Sea Turtle Day [79] June 16 World Day to Combat Desertification and Drought: June 17 World ...
It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 to 40 °F (−1.1 to 4.4 °C). Unless otherwise specified, in American contexts "hardiness zone" or simply "zone" usually refers to the USDA scale.
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Zone 7 may refer to: Travelcard Zones 7-9 , of the Transport for London zonal system Hardiness zone , a geographically defined zone in which a specific category of plant life is capable of growing
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In phytogeography, concerned with the geographic distribution of plant species, floristic provinces are used. The Sierra Nevada are primarily within the California Floristic Province, with the Rocky Mountain Floristic Province to the north, the Great Basin Floristic Province to the east, and Sonoran Floristic Province to the south.
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