scholarly journals Topographic heterogeneity lengthens the duration of pollinator resources

2020 ◽  
Vol 10 (17) ◽  
pp. 9301-9312
Author(s):  
Rachael L. Olliff‐Yang ◽  
David D. Ackerly
Keyword(s):  
Topographic Heterogeneity

Micro-topographic heterogeneity increases plant diversity in old stages of restored grasslands

2015 ◽  
Vol 16 (4) ◽  
pp. 291-299 ◽  
Author(s):  
Balázs Deák ◽  
Orsolya Valkó ◽  
Péter Török ◽  
András Kelemen ◽  
Tamás Miglécz ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Topographic Heterogeneity

scholarly journals Lichen Distribution Patterns in the Ecoregions of Italy

Diversity ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 294 ◽  
Author(s):  
Stefano Martellos ◽  
Marco d’Agostino ◽  
Alessandro Chiarucci ◽  
Pier Luigi Nimis ◽  
Juri Nascimbene
Keyword(s):  
Information System ◽  
Species Richness ◽  
Regional Scale ◽  
Distribution Patterns ◽  
Environmental Features ◽  
Ecological Requirements ◽  
Surface Climate ◽  
Lichen Biota ◽  
Topographic Heterogeneity ◽  
First Time

An outline of the main distribution patterns of lichens in the ecoregions of Italy, accounting for their climatic, geographic, and environmental features, is still missing. On the basis of a GIS-based analysis, we summarized: (1) the main features (e.g., surface, climate, landscape, topographic heterogeneity, bedrock, eutrophication) of the 9 ecoregions adopted in ITALIC, the information system on Italian lichens, and (2) the patterns of richness, functional traits, and ecological requirements of lichens in the ecoregions. Our GIS-based analysis describes for the first time the main features of the 9 ecoregions adopted in ITALIC, highlighting differences which could explain the main lichen patterns. Overall, the exploration of the Italian lichen biota is still a work in progress, some regions being still underexplored, especially in the South, with new taxa being reported every year. Our research could provide a baseline for further advancements in the understanding of species richness and community composition of Italian lichens, at a regional scale.

scholarly journals Limited Vegetation Development on a Created Salt Marsh Associated with Over-Consolidated Sediments and Lack of Topographic Heterogeneity

2014 ◽  
Vol 38 (1) ◽  
pp. 325-336 ◽  
Author(s):  
Katherine L. Brooks ◽  
Hannah L. Mossman ◽  
Joanna L. Chitty ◽  
Alastair Grant
Keyword(s):  
Salt Marsh ◽  
Vegetation Development ◽  
Topographic Heterogeneity

The Use of Elevation Map Histograms for Topographic Heterogeneity Analysis

2012 ◽  
Vol 26 (7) ◽  
pp. 2529-2531
Author(s):  
Rogerio P. Mota ◽  
Elson de Campos ◽  
Eleasar M. Marins ◽  
Emerson F. Lucena ◽  
Francisco C. L. Melo ◽  
...  
Keyword(s):  
Heterogeneity Analysis ◽  
Topographic Heterogeneity

scholarly journals Multispecies coexistence of trees in tropical forests: spatial signals of topographic niche differentiation increase with environmental heterogeneity

2013 ◽  
Vol 280 (1764) ◽  
pp. 20130502 ◽  
Author(s):  
C. Brown ◽  
D. F. R. P. Burslem ◽  
J. B. Illian ◽  
L. Bao ◽  
W. Brockelman ◽  
...  
Keyword(s):  
Spatial Structure ◽  
Environmental Heterogeneity ◽  
Neutral Theory ◽  
Strong Support ◽  
Empirical Support ◽  
Niche Differentiation ◽  
Heterogeneous Environments ◽  
Strong Positive Relationship ◽  
Species Pairs ◽  
Topographic Heterogeneity

Neutral and niche theories give contrasting explanations for the maintenance of tropical tree species diversity. Both have some empirical support, but methods to disentangle their effects have not yet been developed. We applied a statistical measure of spatial structure to data from 14 large tropical forest plots to test a prediction of niche theory that is incompatible with neutral theory: that species in heterogeneous environments should separate out in space according to their niche preferences. We chose plots across a range of topographic heterogeneity, and tested whether pairwise spatial associations among species were more variable in more heterogeneous sites. We found strong support for this prediction, based on a strong positive relationship between variance in the spatial structure of species pairs and topographic heterogeneity across sites. We interpret this pattern as evidence of pervasive niche differentiation, which increases in importance with increasing environmental heterogeneity.

Designing topographic heterogeneity for tidal wetland restoration

2018 ◽  
Vol 123 ◽  
pp. 212-225 ◽  
Author(s):  
Heida L. Diefenderfer ◽  
Ian A. Sinks ◽  
Shon A. Zimmerman ◽  
Valerie I. Cullinan ◽  
Amy B. Borde
Keyword(s):  
Wetland Restoration ◽  
Tidal Wetland ◽  
Topographic Heterogeneity
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