28. Maya遗迹
The results from an autecological study of the growth, reproduction, and population dynamics of Brosimum alicastrum in southern Mexico are applied to the controversy surrounding the use of this species in Maya subsistence practice. The frequent occurrence of B. alicastrum near ruins is explained by its competitive advantage on shallow limestone soils coupled with a continual input of bat-dispersed seed. Populations of the tree at Tikal are then compared with other naturally occurring populations as an example of how a detailed ecological analysis may furnish valuable insight into the historical use of a plant species. The Tikal populations are shown to be atypical in terms of phenology, productivity and breeding systems, suggesting that some form of artificial selection may have been practiced by the Maya.
体坛英语资讯:Messi optimistic about fitness for Spain friendly
国内英语资讯:Chinas top political advisor stresses following and developing new type of party system
下班还不走?首尔市政府将强制关机
国内英语资讯:CCDI stresses duty performance in deepening reform of Party, state institutions
体坛英语资讯:Neuer may miss World Cup, says Kahn
国内英语资讯:Mainland policy opens new door for Taiwan youth: experts
体坛英语资讯:Chile coach Rueda hails players after victory over Sweden
体坛英语资讯:OSullivan eliminated after making 147 at World Snooker China Open
国内英语资讯:Xinhua Headlines: Chinas new push for a beautiful future
世界最佳教师!自学35门语言,只为教学生!
关于《十三个理由》第二季,你需要知道的几个点
体坛英语资讯:Neymar is irreplaceable, says Brazil coach
厉害了!《欲望都市》女星宣布参选纽约州长!
体坛英语资讯:Argentina striker Martinez says Inter Milan move almost set
国内英语资讯:Xi, Macron pledge over phone to deepen ties, jointly build open global trade system
国内英语资讯:China inaugurates national supervisory commission
体坛英语资讯:Report: Rafael Nadal considered to be ideal boss in Spanish survey
体坛英语资讯:China ready to take on tough opponents in China Cup
体坛英语资讯:Former Brazil keeper Cesar rules out new Flamengo deal
国内英语资讯:Qinghai to build, renovate 400 toilets for tourists
体坛英语资讯:Messi the hero again as Barca retain unbeaten record in matchday 30
国内英语资讯:Interview: International SOS taps China market on B&R initiative
体坛英语资讯:Bremen down Frankfurt 2-1 in German Bundesliga
体坛英语资讯:Massive health facilities prepared for Asian Games
体坛英语资讯:Colombia rally from 2-goal down to beat France 3-2 in football friendly
体坛英语资讯:Boca edge closer to Superliga Argentina title
Facebook要完?扎克伯格回应数据泄露事件
体坛英语资讯:Kenyas Mutai to challenge ex-Olympic champ Kiprotich in Hamburg Marathon
体坛英语资讯:Argentina World Cup winner Houseman dies
《西部世界》:和第二季相比第一季就是“小打小闹”