Effects of branching spatial structure and life history on the asymptotic growth rate of a population
Goldberg, Emma E.
Lynch, Heather J.
Neubert, Michael G.
Fagan, William F.
MetadataShow full item record
The dendritic structure of a river network creates directional dispersal and a hierarchical arrangement of habitats. These two features have important consequences for the ecological dynamics of species living within the network.We apply matrix population models to a stage-structured population in a network of habitat patches connected in a dendritic arrangement. By considering a range of life histories and dispersal patterns, both constant in time and seasonal, we illustrate how spatial structure, directional dispersal, survival, and reproduction interact to determine population growth rate and distribution. We investigate the sensitivity of the asymptotic growth rate to the demographic parameters of the model, the system size, and the connections between the patches. Although some general patterns emerge, we find that a species’ mode of reproduction and dispersal are quite important in its response to changes in its life history parameters or in the spatial structure. The framework we use here can be customized to incorporate a wide range of demographic and dispersal scenarios.
Author Posting. © The Author(s), 2009. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Theoretical Ecology 3 (2010): 137-152, doi:10.1007/s12080-009-0058-0.
Suggested CitationPreprint: Goldberg, Emma E., Lynch, Heather J., Neubert, Michael G., Fagan, William F., "Effects of branching spatial structure and life history on the asymptotic growth rate of a population", 2010-09-08, https://doi.org/10.1007/s12080-009-0058-0, https://hdl.handle.net/1912/3905
Showing items related by title, author, creator and subject.
Spatial patterns of bacterial richness and evenness in the NW Mediterranean Sea explored by pyrosequencing of the 16S rRNA Pommier, Thomas; Neal, Phillip R.; Gasol, Josep M.; Coll, Montserrat; Acinas, Silvia G.; Pedros-Alio, Carlos (Inter-Research, 2010-12-30)Due to analytical limitations, patterns of richness and evenness of microbes are scarce in the current literature. The newest and powerful pyrosequencing technology may solve this issue by sampling thousands of sequences ...
Frosch, Robert A. (2011-08-25)This paper discusses a simple problem in detection theory using a model with a simple discretized space. This allows the probability problem to be analyzed algebraically to demonstrate that separate targets, independent ...
Seasonal succession and spatial patterns of Synechococcus microdiversity in a salt marsh estuary revealed through 16S rRNA gene oligotyping Mackey, Katherine R. M.; Hunter-Cevera, Kristen R.; Britten, Gregory L.; Murphy, Leslie G.; Sogin, Mitchell L.; Huber, Julie A. (Frontiers Media, 2017-08-09)Synechococcus are ubiquitous and cosmopolitan cyanobacteria that play important roles in global productivity and biogeochemical cycles. This study investigated the fine scale microdiversity, seasonal patterns, and spatial ...