Reproductive phenology of the cerrado plant community in Emas National Park (central Brazil)

被引:142
作者
Batalha, MA
Martins, FR
机构
[1] Univ Fed Sao Carlos, Dept Bot, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Estadual Campinas, Dept Bot, BR-13084971 Campinas, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
D O I
10.1071/BT03098
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The cerrado, a savanna-like formation, is the second-most widespread vegetation type in Brazil. Its core region occupies the Brazilian Central Plateau, with a seasonal climate, including wet summer and dry winter. We studied the reproductive phenological patterns of the cerrado plant community in Emas National Park (central Brazil). Monthly field trips revealed 601 species, classified, according to their dispersal syndromes, into anemo-, auto-, or zoochorous species, when they were dispersed by wind, explosion or gravity, or animals, respectively. We analysed the flowering and fruiting patterns of the community in relation to dispersal syndromes, comparing the herbaceous and the woody components. The herbaceous component was characterised by a majority of autochorous species, and the woody component, by a majority of zoochorous species. There was a striking seasonality in the community-wide pattern of flowering and fruiting, although this was different between the herbaceous and the woody components. Woody species flowered mainly during late dry and early wet seasons, whereas herbaceous species flowered especially during late wet season. In the dry season, when their diaspores can be dispersed more efficiently, the proportions of anemo- and autochorous fruiting species were higher. During the rainy season, when their fruits can be kept attractive for longer time, the number of fruiting zoochorous species reached its peak.
引用
收藏
页码:149 / 161
页数:13
相关论文
共 44 条
  • [1] [Anonymous], 1997, ACTA BOT BRAS, DOI DOI 10.1590/S0102-33061997000100007
  • [2] AOKI H, 1980, THESIS I NACL PESQUI
  • [3] WIND DISPERSAL OF ARTIFICIAL FRUITS VARYING IN MASS, AREA, AND MORPHOLOGY
    AUGSPURGER, CK
    FRANSON, SE
    [J]. ECOLOGY, 1987, 68 (01) : 27 - 42
  • [4] Batalha M. A., 2000, Revista Brasileira de Biologia, V60, P129, DOI 10.1590/S0034-71082000000100016
  • [5] BATALHA MA, 2002, CONTRIBUTIONS BOT, V20, P295
  • [6] BIANCO S, 1986, PESQUI AGROPECU BRAS, V21, P1229
  • [7] Bourliere F., 1983, Ecosystems of the world. 13. Tropical savannas, P1
  • [8] COUTINHO LM, 1990, ECOL STU AN, V84, P82
  • [9] Ferri MG, 1944, BOTANICA, V4, P155
  • [10] FIGUEIREDO-RIBEIRO R C L, 1981, Revista Brasileira de Botanica, V4, P73