Spatial variation in below-ground seed germination and divergent mycorrhizal associations correlate with spatial segregation of three co-occurring orchid species

Orchid seed germination pdf

Spatial Segregation in Demography: A Short Review

  Abstract. Spatial has always been an inherent component of demography, and demographic processes are inherently spatiotemporal. Recognizing the importance of spatial in general and spatial segregation in particular in demographic analysis has created new positions in demography and its conceptual and analytical frameworks. The notion of spatial segregation refers to the distribution of social...

Seed germination requirements of four species co-occurring in a Wisconsin sedge meadow

Seeds of four colonizing species which occur together in a recently revegetated sedge meadow were tested for germination after storage under three different conditions. Seeds were tested at an alternating temperature regime of 21° C dark, and 32° C light. Three species, Bidens frondosa, B. coronata, and Scirpus cyperinus germinated most successfully when stored under moist-cool conditions. Germ...

Spatial segregation of interacting species.

The distributional pattern formation of the populations of two competitive species in heterogeneous environments is analyzed. In the mathematical formulation, a non-linear dispersive force due to mutual interferences of individuals and an environmental potential function are introduced as a behavioral version of Morisita’s phenomenological theory of “Environmental density”. Mathematical analyse...

A STUDY ON COMPARISON OF SEED DORMANCY AND GERMINATION IN THREE SPECIES OF DODDER