Scaling of biological community structure: A systems approach to community complexity

1987 ◽  
Vol 127 (1) ◽  
pp. 97-110 ◽  
Author(s):  
Brian A. Maurer
Keyword(s):  
Community Structure ◽  
Systems Approach ◽  
Biological Community ◽  
Community Complexity

scholarly journals Phylogeny, phylogeography, phylobetadiversity and the molecular analysis of biological communities

2011 ◽  
Vol 366 (1576) ◽  
pp. 2391-2402 ◽  
Author(s):  
Brent C. Emerson ◽  
Francesco Cicconardi ◽  
Pietro P. Fanciulli ◽  
Peter J. A. Shaw
Keyword(s):  
Community Structure ◽  
Community Composition ◽  
Molecular Genetic ◽  
Species Assemblages ◽  
Molecular Evidence ◽  
Biological Communities ◽  
Geographical Scale ◽  
Recent Developments ◽  
Community Complexity ◽  
Taxonomic Groups

There has been much recent interest and progress in the characterization of community structure and community assembly processes through the application of phylogenetic methods. To date most focus has been on groups of taxa for which some relevant detail of their ecology is known, for which community composition is reasonably easily quantified and where the temporal scale is such that speciation is not likely to feature. Here, we explore how we might apply a molecular genetic approach to investigate community structure and assembly at broad taxonomic and geographical scales, where we have little knowledge of species ecology, where community composition is not easily quantified, and where speciation is likely to be of some importance. We explore these ideas using the class Collembola as a focal group. Gathering molecular evidence for cryptic diversity suggests that the ubiquity of many species of Collembola across the landscape may belie greater community complexity than would otherwise be assumed. However, this morphologically cryptic species-level diversity poses a challenge for attempts to characterize diversity both within and among local species assemblages. Recent developments in high throughput parallel sequencing technology, combined with mtDNA barcoding, provide an advance that can bring together the fields of phylogenetic and phylogeographic analysis to bear on this problem. Such an approach could be standardized for analyses at any geographical scale for a range of taxonomic groups to quantify the formation and composition of species assemblages.

scholarly journals Biological community structure in Krueng Sarah River, Aceh Besar District

2021 ◽  
Vol 674 (1) ◽  
pp. 012065
Author(s):  
C Octavina ◽  
N M Razi ◽  
M Agustiar ◽  
R Sakinah ◽  
M R Fazillah ◽  
...  
Keyword(s):  
Community Structure ◽  
Biological Community

scholarly journals Determining Boundaries between Abundance Biozones Using Minimal Equipment

2010 ◽  
Vol 2010 ◽  
pp. 1-13 ◽  
Author(s):  
Brent Wilson ◽  
Richard Dawe ◽  
Anesh Gopee ◽  
Sherezz Grant ◽  
Arianna Kissoon ◽  
...  
Keyword(s):  
Community Structure ◽  
Statistical Techniques ◽  
Areal Extent ◽  
Inexpensive Method ◽  
Biological Communities ◽  
Biological Community ◽  
Large Samples ◽  
Caroni Swamp ◽  
She Analysis

The areal extent of a biological community is usually determined using statistical techniques that only give reliable results where samples contain similar and high numbers of specimens. This paper presents a simple, inexpensive method for determining the geographical limits of biological communities applicable where adjacent samples contain widely differing numbers of specimens. The method is a development of SHE Analysis, which discerns boundaries between adjacent abundance biozones (ABs), an AB being an area with a distinct community structure. As originally conceived, SHEbi(SHE Analysis for the identification of Biozones) commences with species' absolute abundances and works best with large samples of equal sizes. If the variance in (per sample) is high, SHEbimay place AB boundaries in unexpected locations. A modification, based on proportional abundances, is developed here using species' proportional abundances () for each sample where is the number of specimens in theith species in the sample. For intertidal foraminifera from the Caroni Swamp, Trinidad, where , the number of specimens, fluctuates widely between samples, the modification (SHEbip) gives ecologically more sensible results than does traditional SHEbi.

scholarly journals Biological community structure on patch reefs in Biscayne National Park, FL, USA

2009 ◽  
Vol 164 (1-4) ◽  
pp. 513-531 ◽  
Author(s):  
Ilsa B. Kuffner ◽  
Rikki Grober-Dunsmore ◽  
John C. Brock ◽  
T. Don Hickey
Keyword(s):  
Community Structure ◽  
National Park ◽  
Patch Reefs ◽  
Biological Community ◽  
Biscayne National Park

scholarly journals BRIDGING LEVELS OF PHARMACEUTICALS IN RIVER WATER WITH BIOLOGICAL COMMUNITY STRUCTURE IN THE LLOBREGAT RIVER BASIN (NORTHEAST SPAIN)

2009 ◽  
Vol 28 (12) ◽  
pp. 2706 ◽  
Author(s):  
Isabel Muñoz ◽  
Julio C. López-Doval ◽  
Marta Ricart ◽  
Marta Villagrasa ◽  
Rikke Brix ◽  
...  
Keyword(s):  
Community Structure ◽  
River Water ◽  
River Basin ◽  
Biological Community ◽  
Llobregat River

Aquatic Coleoptera and Hemiptera in some Canadian saline lakes: patterns in community structure

1987 ◽  
Vol 65 (6) ◽  
pp. 1383-1390 ◽  
Author(s):  
J. Lancaster ◽  
G. G. E. Scudder
Keyword(s):  
Cluster Analysis ◽  
Community Structure ◽  
Saline Lakes ◽  
Species Distributions ◽  
Ecological Classification ◽  
Feeding Guild ◽  
Classification Schemes ◽  
Fishless Lakes ◽  
Wide Range ◽  
Community Complexity

Communities of aquatic Coleoptera and Hemiptera were examined in eight fishless lakes of varying salinities in central British Columbia. A total of 28 coleopteran and 8 hemipteran species were collected. Taxonomic and ecological classification schemes, cluster analysis, and quantitative parameters were used to elucidate patterns of community structure from survey data. Species were characteristic of high, moderate, or low salinities, or tolerant of all salinities encountered. Species distributions were disjunct at conductivities of 80 and 5000 μS cm−1, yet community complexity changed more gradually with salinity. Densities increased and species richness, species diversity, feeding guild diversity, and ecological category diversity decreased with increased conductivity. Predatory Coleoptera were well represented in all lakes, but herbivores were less abundant with increased salinity. A curious size–distribution pattern was observed: a wide range of species sizes occurred in the most freshwater lake, but fewer size classes and only small sizes were represented in more saline lakes. Several mechanistic hypotheses are suggested to explain the observed patterns.

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