Resource use efficiency as a function of species richness and stand composition in upper montane conifer forests of the Sierra Nevada

DeClerck, Fabrice; Barbour, Michael G.; Sawyer, John O.

doi:10.1658/1100-9233(2005)016[0443:rueaaf]2.0.co;2

Cited by 10 publications

(8 citation statements)

References 29 publications

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“…The co-existence of species is substantially explained through neutral theory 45,46 and niche theories. 47,48 Higher diversity is hypothesized to enhance the ecosystem productivity 62 . Because larger the number of species, greater would be the interactions of physiological, morphological traits that will help in enhancing the efficiency of ecosystem functioning in subjecting the resources to more efficient use.…”

Section: Biological Diversitymentioning

confidence: 99%

“…This suggests that the canopy species as well as the shade tolerant species are less in number compared to those that need moderate light. Such an arrangement of species depending on their light saturations would optimize the light use efficiency of the ecosystem 39,47 resulting in good growth. This was evident from many of the growth attributes such as biomass accumulation, girth increment, distribution, tree density and regeneration as described below.…”

Section: Structural Composition Of Sacred Grovesmentioning

confidence: 99%

“…3 The subtle climatic variations seen in the vertical and horizontal profiles of the ecosystem provide variable climatic conditions congenial for diverse species, enabling many species to co-exist. 47,48,50 When the conditions are favorable for growth it should also be reflected in the tree population. Tree density in the groves varied from 299 to 431 tree/ha across the size class of the groves, with an average 360 tree ha -1 ( Table 2).…”

Section: Structural Composition Of Sacred Grovesmentioning

confidence: 99%

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Role of community conserved sacred groves in biodiversity conservation and climate resilience

Devakumar

Srinath

Khaple

et al. 2018

FREIJ

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The community conserved sacred groves which exist over generations, is a testimony for positive anthropogenic intervention in biodiversity conservation. Groves existing across diverse climatic conditions of Central Western Ghats has recorded144 tree species of which 15 were endemic in nature with a high Shanon's diversity index of 4.15. High tree density (360 trees ha-1) with a basal area of 32.8-49m 2 ha-1 is an indication of favorable growing conditions as well as efficient functioning of the groves. This was further substantiated from the typical inverted "J" curve of girth class distribution, indicating the normal regeneration process prevailing in the groves. The carbon sequestered from above ground biomass of standing trees, soil organic carbon and litter was 139.78, 62.3 and 0.38 tC ha-1 respectively. About 196.43 tCha-1 sequestered in the groves is highest so far reported among the forest ecosystems of India. Thus results indicate the importance of community conserved forest ecosystems in sustaining the biodiversity which impart functional diversity and in turn resilience of the ecosystem. Such self sustaining ecosystems under changing climatic conditions are most essential in mitigating climate change.

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Section: Biological Diversitymentioning

confidence: 99%

Section: Structural Composition Of Sacred Grovesmentioning

confidence: 99%

Section: Structural Composition Of Sacred Grovesmentioning

confidence: 99%

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Role of community conserved sacred groves in biodiversity conservation and climate resilience

Devakumar

Srinath

Khaple

et al. 2018

FREIJ

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“…Next, some tried to predict results for this relationship on a global scale, in order to be able to predict changes in plant distribution, the species composition of different communities or carbon sequestration (Mittelbach et al 2001(Mittelbach et al , 2003Whittaker et al 2001Whittaker et al , 2003Rahbek 2005;Jacob et al 2010). Some researchers came to regard the relationship between above-ground biomass and species diversity as a negative one (Waide et al 1999;Mouquet et al 2002;Chen et al 2003;DeClerck et al 2005), while others found a positive one (Caspersen et al 2001;Vilà et al 2007), unimodal like U-shaped ones, a humped-back shaped processes (Mittelbach et al 2001), or simply no relationship (Szwagrzyk and Gazda 2007b;Whittaker 2010). All studied forests differed in terms of climatic features and geographical location (biome, latitude and altitude).…”

Section: Introductionmentioning

confidence: 99%

Tree species diversity and above-ground biomass of natural temperate forest: montane versus lowland forest

Gazda¹,

Miścicki²,

Chwistek³

2015

Dendrobiology

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Abstract:We studied the relationship between tree-species diversity and the above-ground biomass on an example of two natural Polish forest with different altitiudinal range, plant species pool, vegetation and climatic conditions. The study sought to determine whether: (1) above-ground biomass in natural forests correlates with tree-species diversity irrespective of the kind of forest (montane or lowland), and (2) the relationship in question is negative, (3) the above-ground biomass is greater in montane forests than in lowland ones.Natural forests present in 1º Polish Gorce Mountains (montane forest) alongside comparable data for the 2º world-renowned lowland forest that is present in the Białowieża National Park. Data were collected within 558 sample plots (á 200-square-metre). The diameter at breast height of all trees with girths of or exceeding 12 cm was measured. To compute above-ground biomass we calculated dry masses for each tree on the basis of values for dbh and height, next we summed these values for all species present within each plot. The number of tree species on a plot ranged from only one (mainly in spruce stands) to six (in mixed deciduous lowland forest stands). The above-ground accumulated biomass ranged from 6 to 1155 (average 251±13) t ha -1 within the lowland forest, and from 2 to 849 (average 242±8) t ha -1 within the montane forest.We concluded that there was a humped-back shaped relationship between tree-species diversity and aboveground biomass in both lowland and montane natural forests.

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“…One-Way ANOVA analyses (DeClerck, Barbour, & Sawyer, 2005;Fraterrigo et al, 2006;Lindquist, 2004a) were used to illustrate significant differences between regenerating redwood stands and unharvested old-growth stands. Data were tested for normality using a skewness test and an Aabel© Probability Chart, which displayed the cumulative distribution of the data relative to a normal distribution function (Gigawiz, 2007) Linear regression (DeClerck et al, 2005;Lindquist, 2004aLindquist, , 2004bKoch, Sillett, Jennings, & Davis, 2004) was used to illustrate significant changes and trends in regenerating stands over time following clearcut timber harvest not demonstrated in the One-Way ANOVA results. Regression analysis for total tree density and total basal area were included in the analysis.…”

Section: Methodsmentioning

confidence: 99%

Vegetation change over time in naturally-regenerating Coast Redwood communities

Hageseth

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show abstract

Resource use efficiency as a function of species richness and stand composition in upper montane conifer forests of the Sierra Nevada

Cited by 10 publications

References 29 publications

Role of community conserved sacred groves in biodiversity conservation and climate resilience

Role of community conserved sacred groves in biodiversity conservation and climate resilience

Tree species diversity and above-ground biomass of natural temperate forest: montane versus lowland forest

Vegetation change over time in naturally-regenerating Coast Redwood communities

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