Variation in species richness and species pool size across a pH gradient in forests of the southern Blue Ridge Mountains

2003 ◽  
Vol 38 (4) ◽  
pp. 391-401 ◽  
Author(s):  
Robert K. Peet ◽  
Jason D. Fridley ◽  
Joel M. Gramling
Keyword(s):  
Species Richness ◽  
Pool Size ◽  
Ph Gradient ◽  
Species Pool ◽  
Blue Ridge ◽  
Blue Ridge Mountains

Species pool size and realized species richness affect productivity differently: A modeling study

2010 ◽  
Vol 36 (6) ◽  
pp. 578-586 ◽  
Author(s):  
Terezie Stachová ◽  
Jan Lepš
Keyword(s):  
Species Richness ◽  
Pool Size ◽  
Species Pool ◽  
Modeling Study

The composition, species richness and species pool size of mono- and oligodominant forest stands of the Western Caucasus

2018 ◽  
pp. 3-18
Author(s):  
V. V. Akatov
Keyword(s):  
Species Richness ◽  
Plant Cover ◽  
Species Abundance ◽  
Pool Size ◽  
Species Pool ◽  
Forest Stands ◽  
Western Caucasus ◽  
Number Of Species ◽  
Dominance Structure ◽  
The Western Caucasus

There is an opinion that the pressure of competition in the plant communities of stable and productive habitats leads to the decrease in evenness of structure of species abundance and species richness up to the monopolization of plots by the most successful competitor (Huston, 1979; Bengtsson et al., 1994). Hence, between the species richness of phytocoenoses and relative density of individuals of dominant species (RDD), negative dependence should be observed. However, according to another view, the number of species and structure of their abundance are determined by the different processes. The number of species is determined by the species pool size and the rate of species immigration, while the abundance structure — by the competition (Stirling, Wilsey, 2001; Ma, 2005; Wilsey, Stirling, 2007). In particular, in some communities a decrease of RDD leads to an increase in abundance of subdominant species and to oligodominant structure. These changes in relative abundance could occur without changes in species richness. Therefore these variables could be weakly related (Ma, 2005; Wilsey, Stirling, 2007; Munson, Lauenroth, 2009). However, it is unclear how widely these scenarios are realized in the plant cover. The aim of our study was to examine the relationship between RDD, the dominance structure as a whole (mono- or oligodominant), the species richness and the size of the species pool in the forest stands of the Western Caucasus.

scholarly journals Probing the troublesome peaked relationship between avian species richness and natural land cover

2021 ◽  
Author(s):  
Rafael Xavier De Camargo ◽  
David Currie
Keyword(s):  
Species Richness ◽  
Land Cover ◽  
Landscape Heterogeneity ◽  
New York State ◽  
Pool Size ◽  
Avian Species ◽  
Temperature Gradients ◽  
Species Pool ◽  
Natural Land ◽  
The Relationship

Abstract Context : Biodiversity models postulate that the relationship between richness and the proportion of natural land cover (pNLC i.e., not dominated by human uses) is: 1) monotonic positive, 2) reasonably strong , 3) consistent in different geographic areas . Earlier work examining 100-km 2 human-dominated landcover in Ontario, Canada, observed that surveyed avian species richness is a peaked function of pNLC. Objective : We tested whether the same relationship between avian species richness and pNLC is also observed in an independent geographic area that has similar biomes. We also tested whether the peaked relations might be caused by temperature gradients, gradients in the size of species pools, grain size in the analyses, and landscape heterogeneity. Methods : Using breeding bird atlases of Ontario (Canada) and New York State (USA), we estimated species richness in landscapes varying from 25 to 900 km 2 . We related richness to the pNLC in each landscape and examined the same relationships after controlling for temperature, habitat heterogeneity, and species pool size. Results : Landscape-level species richness is a peaked, and not very strong function of pNLC. The relationship is not an artefact of temperature gradients, species pool size, or land cover heterogeneity. Conclusions : The proposition that increased amounts of natural land cover promotes species richness is clearly true at the limit, in landscapes with relatively little (<30%) natural cover. In landscapes with higher amounts of natural cover, a certain amount of human-modified land covers can provide habitat for species that prefer open habitats.

NEAR-STREAM DEPOSITIONAL SEDIMENT TRAITS, INTERPRETATION, AND HYDROLOGICAL IMPLICATIONS IN HEADWATERS OF THE SOUTHERN BLUE RIDGE MOUNTAINS

2018 ◽  
Author(s):  
Bryce Vascik ◽  
◽  
Mark Lord ◽  
David Kinner ◽  
Ted Campbell
Keyword(s):  
Blue Ridge ◽  
Blue Ridge Mountains

THERMAL EVOLUTION OF ULTRAMAFIC BODIES IN THE EASTERN BLUE RIDGE MOUNTAINS, NC

2018 ◽  
Author(s):  
Anna VanDusen ◽  
◽  
Katharine Johanesen ◽  
Kaylee Pennell ◽  
Adam J. Ianno ◽  
...  
Keyword(s):  
Thermal Evolution ◽  
Blue Ridge ◽  
Blue Ridge Mountains

Writing the Geography of the Blue Ridge Mountains: How Displacement Recorded the Land

Biography ◽  
2002 ◽  
Vol 25 (1) ◽  
pp. 73-94 ◽  
Author(s):  
Katrina M. Powell
Keyword(s):  
Blue Ridge ◽  
Blue Ridge Mountains

Reproductive success of Acadian Flycatchers in the Blue Ridge Mountains of Virginia

2005 ◽  
Vol 76 (2) ◽  
pp. 150-157 ◽  
Author(s):  
Peter T. Fauth ◽  
Paul R. Cabe
Keyword(s):  
Reproductive Success ◽  
Blue Ridge ◽  
Blue Ridge Mountains ◽  
Acadian Flycatchers

Tony Earley

2020 ◽  
pp. 603-615
Keyword(s):  
North Carolina ◽  
Creative Writing ◽  
San Antonio ◽  
Blue Ridge ◽  
University Of Alabama ◽  
Blue Ridge Mountains ◽  
The University ◽  
Vanderbilt University ◽  
Wilson College

Tony Earley was born in San Antonio, Texas, and grew up in North Carolina near the Blue Ridge Mountains. He graduated from Warren Wilson College in 1983 and earned an MFA in creative writing from the University of Alabama. Since 1997 he has taught writing at Vanderbilt University....

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