Pinon and Juniper Seed Dispersal and Seedling Recruitment at Woodland Ecotones
Pinon and Juniper Seed Dispersal and Seedling Recruitment at Woodland Ecotones
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发表时间：
1999
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通讯作者：
E. Schupp;J. Chambers;S. B. Wall;J. Gómez;Marcelino Fuentes;T. Milleron
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作者：
E. Schupp;J. Chambers;S. B. Wall;J. Gómez;Marcelino Fuentes;T. Milleron
松林对草地和灌丛的入侵是由林地交错带种子传播和幼苗建立驱动的，但我们对这些过程知之甚少。我们提出了一个初步的概述树种传播和树苗招募在交错带。林地外的扩散取决于种子传播器的类型及其栖息地用途、运动模式和觅食后的行为，以及邻近群落的物理结构。幼苗的建立取决于种子沉积地点的生物和非生物环境，因此还受邻近群落的物理结构和整体气候的影响。最后，我们举例说明了解种子和苗木生态对科学家和土地管理者的价值。
Invasion of grasslands and shrublands by pinon-juni- per woodlands is driven by seed dispersal and seedling establish- ment at woodland ecotones, yet we know little about these pro- cesses. We present a preliminary overview of tree seed dispersal and seedling recruitment at ecotones. Dispersal out of woodlands depends on the type of seed disperser and their habitat use, movement patterns, and post-foraging behavior, and on the physi- cal structure of the adjacent community. Seedling establishment depends on the biotic and abiotic environment of seed deposition sites, and thus is also affected by the physical structure of the adjacent community as well as by the overall climate. We conclude with examples of the value to scientists and land managers of understanding seed and seedling ecology.