Is there a latitudinal gradient in seed production?
نویسندگان
چکیده
A. T. Moles ([email protected]), Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, Univ. of New South Wales, NSW 2052, Australia. I. J. Wright and M. Westoby, Dept of Biological Sciences, Macquarie Univ., NSW 2109, Australia. A. J. Pitman, Climate Change Research Centre, Univ. of New South Wales, NSW 2052, Australia. B. R. Murray, Inst. for Water and Environmental Resource Management, Univ. of Technology, Sydney, NSW 2065, Australia.
منابع مشابه
Global patterns in seed size
Aim To provide the first global quantification of the slope and shape of the latitudinal gradient in seed mass, and to determine whether global patterns in seed mass are best explained by growth form, vegetation type, seed dispersal syndrome, or net primary productivity (NPP).
متن کاملHerbivory Differentially Affects Plant Fitness in Three Populations of the Perennial Herb Lythrum salicaria along a Latitudinal Gradient
Herbivory can negatively and selectively affect plant fitness by reducing growth, survival and reproductive output, thereby influencing plant population dynamics and evolution. Latitudinal variation in intensity of herbivory is common, but the extent to which it translates into corresponding variation in effects on plant performance is still poorly known. We tested the hypothesis that variation...
متن کاملSpecialization of Mutualistic Interaction Networks Decreases toward Tropical Latitudes
Species-rich tropical communities are expected to be more specialized than their temperate counterparts. Several studies have reported increasing biotic specialization toward the tropics, whereas others have not found latitudinal trends once accounting for sampling bias or differences in plant diversity. Thus, the direction of the latitudinal specialization gradient remains contentious. With an...
متن کاملCorrelates of interspecific synchrony and interannual variation in seed production by deciduous trees
Eastern deciduous forests are populated with a variety of hardwood species, with composition at large scales determined by a complex interplay of temperature, moisture, and disturbance. An understanding of seed production is important in the context of forest regeneration and wildlife management. We analyzed time series data obtained from the literature to investigate (1) the effects of life-hi...
متن کاملDarwin's wind hypothesis: does it work for plant dispersal in fragmented habitats?
Using the wind-dispersed plant Mycelis muralis, we examined how landscape fragmentation affects variation in seed traits contributing to dispersal. Inverse terminal velocity (Vt(-1)) of field-collected achenes was used as a proxy for individual seed dispersal ability. We related this measure to different metrics of landscape connectivity, at two spatial scales: in a detailed analysis of eight l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009