Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1466-822X.2004.00111.x |
Environmental control of flowering periodicity in Costa Rican and Mexican tropical dry forests | |
Borchert, R; Meyer, SA; Felger, RS; Porter-Bolland, L | |
通讯作者 | Borchert, R |
来源期刊 | GLOBAL ECOLOGY AND BIOGEOGRAPHY
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ISSN | 0960-7447 |
出版年 | 2004 |
卷号 | 13期号:5页码:409-425 |
英文摘要 | Aim We analyse the proximate causes of the large variation in flowering periodicity among four tropical dry forests (TDF) and ask whether climatic periodicity or biotic interactions are the ultimate causes of flowering periodicity. Location The four TDFs in Guanacaste (Costa Rica), Yucatan, Jalisco and Sonora (Mexico) are characterized by a 5-7 month long dry season and are located along a gradient of increasing latitude (10-30degreesN). Methods To dissect the differences in flowering periodicity observed at the community level, individual tree species were assigned to ’flowering types’, i.e. groups of species with characteristic flowering periods determined by similar combinations of environmental flowering cues and vegetative phenology. Results Large variation in the fraction of species and flowering types blooming during the dry and wet season, respectively, indicates large differences in the severity of seasonal drought among the four forests. In the dry upland forests of Jalisco, flowering of leafless trees remains suppressed during severe seasonal drought and is triggered by the first rains of the wet season. In the other forests, leaf shedding, exceptional rainfall or increasing daylength cause flowering of many deciduous species at various times during the dry season, well before the summer rains. The fraction of deciduous species leafing out during the summer rains and flowering when leafless during the dry season is largest in the Sonoran TDF. Main conclusions In many wide-ranging species the phenotypic plasticity of flowering periodicity is large. The distinct temporal separation of spring flowering on leafless shoots and subsequent summer flushing represents a unique adaptation of tree development to climates with a relatively short rainy season and a long dry season. Seasonal variation in rainfall and soil water availability apparently constitutes not only the proximate, but also the ultimate cause of flowering periodicity, which is unlikely to have evolved in response to biotic adaptive pressures. |
英文关键词 | Costa Rica flower induction flowering phenology Mexico photoperiodic control rainfall periodicity tropical deciduous forest tropical tree phenology |
类型 | Article |
语种 | 英语 |
国家 | USA ; Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000223112700003 |
WOS关键词 | DECIDUOUS FOREST ; SONORAN DESERT ; TREES ; PHENOLOGY ; RAIN ; INDUCTION ; LOWLANDS ; REGION ; CACTI ; WET |
WOS类目 | Ecology ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/146902 |
作者单位 | (1)Univ Kansas, Div Biol Sci, Lawrence, KS 66045 USA;(2)Drylands Inst, Tucson, AZ 85719 USA;(3)Inst Ecol, AC, Xalapa 91070, Veracruz, Mexico |
推荐引用方式 GB/T 7714 | Borchert, R,Meyer, SA,Felger, RS,et al. Environmental control of flowering periodicity in Costa Rican and Mexican tropical dry forests[J],2004,13(5):409-425. |
APA | Borchert, R,Meyer, SA,Felger, RS,&Porter-Bolland, L.(2004).Environmental control of flowering periodicity in Costa Rican and Mexican tropical dry forests.GLOBAL ECOLOGY AND BIOGEOGRAPHY,13(5),409-425. |
MLA | Borchert, R,et al."Environmental control of flowering periodicity in Costa Rican and Mexican tropical dry forests".GLOBAL ECOLOGY AND BIOGEOGRAPHY 13.5(2004):409-425. |
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