scholarly journals Chemical similarity and local community assembly in the species rich tropical genus Piper

Ecology ◽  
2016 ◽  
Vol 97 (11) ◽  
pp. 3176-3183 ◽  
Author(s):  
Diego Salazar ◽  
M. Alejandra Jaramillo ◽  
Robert J. Marquis
Keyword(s):  
Community Assembly ◽  
Local Community ◽  
Chemical Similarity

scholarly journals Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American Forests

2021 ◽  
Author(s):  
Brian E Sedio ◽  
Marko J Spasojevic ◽  
Jonathan A Myers ◽  
S Joseph Wright ◽  
Maria D Person ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Wood Density ◽  
Plant Diversity ◽  
Community Assembly ◽  
Seed Mass ◽  
Biotic Interactions ◽  
Morphological Trait ◽  
Chemical Similarity ◽  
Precipitation And Temperature

Plant diversity varies immensely over large-scale gradients in temperature, precipitation, and seasonality at global and regional scales. This relationship may be driven in part by climatic variation in the relative importance of abiotic and biotic interactions to the diversity and composition of plant communities. In particular, biotic interactions may become stronger and more host specific with increasing precipitation and temperature, resulting in greater plant species richness in wetter and warmer environments. This hypothesis predicts that the many defensive compounds found in plants’ metabolomes should increase in richness and decrease in interspecific similarity with precipitation, temperature, and plant diversity. To test this prediction, we compared patterns of chemical and morphological trait diversity of 140 woody plant species among seven temperate forests in North America representing 16.2°C variation in mean annual temperature (MAT), 2,115 mm variation in mean annual precipitation (MAP), and from 10 to 68 co-occurring species. We used untargeted metabolomics methods based on data generated with liquid chromatography-tandem mass spectrometry to identify, classify, and compare 13,480 unique foliar metabolites and to quantify the metabolomic similarity of species in each community with respect to the whole metabolome and each of five broad classes of metabolites. In addition, we compiled morphological trait data from existing databases and field surveys for three commonly measured traits (specific leaf area [SLA], wood density, and seed mass) for comparison with foliar metabolomes. We found that chemical defense strategies and growth and allocation strategies reflected by these traits largely represented orthogonal axes of variation. In addition, functional dispersion of SLA increased with MAP, whereas functional richness of wood density and seed mass increased with MAT. In contrast, chemical similarity of co-occurring species decreased with both MAT and MAP, and metabolite richness increased with MAT. Variation in metabolite richness among communities was positively correlated with species richness, but variation in mean chemical similarity was not. Our results are consistent with the hypothesis that plant metabolomes play a more important role in community assembly in wetter and warmer climates, even at temperate latitudes, and suggest that metabolomic traits can provide unique insight to studies of trait-based community assembly.

Integrating biogeographical processes and local community assembly

2012 ◽  
Vol 39 (4) ◽  
pp. 627-628 ◽  
Author(s):  
Joaquín Hortal ◽  
Paulo De Marco Jr ◽  
Ana M. C. Santos ◽  
J . Alexandre F. Diniz-Filho
Keyword(s):  
Community Assembly ◽  
Local Community

scholarly journals Local community assembly mechanisms shape soil bacterial β diversity patterns along a latitudinal gradient

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiao Zhang ◽  
Shirong Liu ◽  
Jingxin Wang ◽  
Yongtao Huang ◽  
Zachary Freedman ◽  
...  
Keyword(s):  
Community Assembly ◽  
Latitudinal Gradient ◽  
Local Community ◽  
Eastern China ◽  
Diversity Patterns ◽  
Geographical Patterns ◽  
Β Diversity ◽  
Species Pools ◽  
Regional Species Pool ◽  
Soil Bacterial

Abstract Biodiversity patterns across geographical gradients could result from regional species pool and local community assembly mechanisms. However, little has been done to separate the effects of local ecological mechanisms from variation in the regional species pools on bacterial diversity patterns. In this study, we compare assembly mechanisms of soil bacterial communities in 660 plots from 11 regions along a latitudinal gradient in eastern China with highly divergent species pools. Our results show that β diversity does not co-vary with γ diversity, and local community assembly mechanisms appear to explain variation in β diversity patterns after correcting for variation in regional species pools. The variation in environmental conditions along the latitudinal gradient accounts for the variation in β diversity through mediating the strength of heterogeneous selection. In conclusion, our study clearly illustrates the importance of local community assembly processes in shaping geographical patterns of soil bacterial β diversity.

scholarly journals Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American Forests

2021 ◽  
Vol 9 ◽  
Author(s):  
Brian E. Sedio ◽  
Marko J. Spasojevic ◽  
Jonathan A. Myers ◽  
S. Joseph Wright ◽  
Maria D. Person ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Wood Density ◽  
Plant Diversity ◽  
Community Assembly ◽  
Seed Mass ◽  
Biotic Interactions ◽  
Morphological Trait ◽  
Chemical Similarity ◽  
Precipitation And Temperature

Plant diversity varies immensely over large-scale gradients in temperature, precipitation, and seasonality at global and regional scales. This relationship may be driven in part by climatic variation in the relative importance of abiotic and biotic interactions to the diversity and composition of plant communities. In particular, biotic interactions may become stronger and more host specific with increasing precipitation and temperature, resulting in greater plant species richness in wetter and warmer environments. This hypothesis predicts that the many defensive compounds found in plants’ metabolomes should increase in richness and decrease in interspecific similarity with precipitation, temperature, and plant diversity. To test this prediction, we compared patterns of chemical and morphological trait diversity of 140 woody plant species among seven temperate forests in North America representing 16.2°C variation in mean annual temperature (MAT), 2,115 mm variation in mean annual precipitation (MAP), and from 10 to 68 co-occurring species. We used untargeted metabolomics methods based on data generated with liquid chromatography-tandem mass spectrometry to identify, classify, and compare 13,480 unique foliar metabolites and to quantify the metabolomic similarity of species in each community with respect to the whole metabolome and each of five broad classes of metabolites. In addition, we compiled morphological trait data from existing databases and field surveys for three commonly measured traits (specific leaf area [SLA], wood density, and seed mass) for comparison with foliar metabolomes. We found that chemical defense strategies and growth and allocation strategies reflected by these traits largely represented orthogonal axes of variation. In addition, functional dispersion of SLA increased with MAP, whereas functional richness of wood density and seed mass increased with MAT. In contrast, chemical similarity of co-occurring species decreased with both MAT and MAP, and metabolite richness increased with MAT. Variation in metabolite richness among communities was positively correlated with species richness, but variation in mean chemical similarity was not. Our results are consistent with the hypothesis that plant metabolomes play a more important role in community assembly in wetter and warmer climates, even at temperate latitudes, and suggest that metabolomic traits can provide unique insight to studies of trait-based community assembly.

scholarly journals Dissecting macroecological and macroevolutionary patterns of forest biodiversity across the Hawaiian archipelago

2019 ◽  
Vol 116 (33) ◽  
pp. 16436-16441 ◽  
Author(s):  
Dylan Craven ◽  
Tiffany M. Knight ◽  
Kasey E. Barton ◽  
Lalasia Bialic-Murphy ◽  
Jonathan M. Chase
Keyword(s):  
Species Diversity ◽  
Community Assembly ◽  
Native Species ◽  
Local Community ◽  
Regional Scale ◽  
Oceanic Islands ◽  
Local Scale ◽  
Hawaiian Archipelago ◽  
Biodiversity Patterns ◽  
Island Area

Biodiversity patterns emerge as a consequence of evolutionary and ecological processes. Their relative importance is frequently tested on model ecosystems such as oceanic islands that vary in both. However, the coarse-scale data typically used in biogeographic studies have limited inferential power to separate the effects of historical biogeographic factors (e.g., island age) from the effects of ecological ones (e.g., island area and habitat heterogeneity). Here, we describe local-scale biodiversity patterns of woody plants using a database of more than 500 forest plots from across the Hawaiian archipelago, where these volcanic islands differ in age by several million years. We show that, after controlling for factors such as island area and heterogeneity, the oldest islands (Kaua’i and O’ahu) have greater native species diversity per unit area than younger islands (Maui and Hawai’i), indicating an important role for macroevolutionary processes in driving not just whole-island differences in species diversity, but also local community assembly. Further, we find that older islands have a greater number of rare species that are more spatially clumped (i.e., higher within-island β-diversity) than younger islands. When we included alien species in our analyses, we found that the signal of macroevolutionary processes via island age was diluted. Our approach allows a more explicit test of the question of how macroevolutionary factors shape not just regional-scale biodiversity, but also local-scale community assembly patterns and processes in a model archipelago ecosystem, and it can be applied to disentangle biodiversity drivers in other systems.

Local community assembly processes shape β‐diversity of soil phoD ‐harbouring communities in the Northern Hemisphere steppes

2021 ◽  
Vol 30 (11) ◽  
pp. 2273-2285
Author(s):  
Lin Xu ◽  
Nianpeng He ◽  
Xiangzhen Li ◽  
Huili Cao ◽  
Chaonan Li ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
Community Assembly ◽  
Local Community ◽  
Β Diversity

scholarly journals Beta‐diversity of central European forests decreases along an elevational gradient due to the variation in local community assembly processes

Ecography ◽  
2017 ◽  
Vol 41 (6) ◽  
pp. 1038-1048 ◽  
Author(s):  
Francesco Maria Sabatini ◽  
Borja Jiménez‐Alfaro ◽  
Sabina Burrascano ◽  
Andrea Lora ◽  
Milan Chytrý
Keyword(s):  
Community Assembly ◽  
Beta Diversity ◽  
Local Community ◽  
Elevational Gradient ◽  
Central European ◽  
European Forests

scholarly journals Differentiation of Environmental Conditions Promotes Variation of Two Quercus wutaishanica Community Assembly Patterns

Forests ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 43
Author(s):  
Mao Wang ◽  
Jinshi Xu ◽  
Yongfu Chai ◽  
Yaoxin Guo ◽  
Xiao Liu ◽  
...  
Keyword(s):  
Loess Plateau ◽  
Community Assembly ◽  
Local Community ◽  
Environmental Filtering ◽  
Local Environment ◽  
Qinling Mountains ◽  
Forest Communities ◽  
The Loess Plateau ◽  
Ecological Processes ◽  
Phylogenetic Structure

Two contradictory niche-based processes, environmental filtering and competitive exclusion, are important ecological processes in community assembly. Quercus wutaishanica forests are the climax communities in the Qinling Mountains and the Loess Plateau, China. Since these areas are characterized by different climate and evolutionary histories, these forests could be a suitable study system to test the phylogenetic niche conservatism hypothesis. We compared variation in community assembly of two distinct Q. wutaishanica forest communities and analyzed how the variations are formed. Quercus wutaishanica forest communities had significantly different species pool, phylogenetic structure and phylogenetic diversity between the two regions that were driven by inconsistency in environment conditions and evolutionary history at the local scale. Soil ammonium nitrogen, soil water content, and nitrate nitrogen play a major role in phylogenetic beta diversity patterns. The effect of environmental filtering on community assembly was more significant on the Loess Plateau than in the Qinling Mountains. Our study also found that local environment is important in mediating the patterns of phylogenetic structure. These findings provide insights into the mechanisms of local community assembly.

scholarly journals Elevational Gradients in β-Diversity Reflect Variation in the Strength of Local Community Assembly Mechanisms across Spatial Scales

PLoS ONE ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. e0121458 ◽  
Author(s):  
J. Sebastián Tello ◽  
Jonathan A. Myers ◽  
Manuel J. Macía ◽  
Alfredo F. Fuentes ◽  
Leslie Cayola ◽  
...  
Keyword(s):  
Community Assembly ◽  
Local Community ◽  
Spatial Scales ◽  
Elevational Gradients ◽  
Β Diversity

scholarly journals Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American Forests

2021 ◽  
Author(s):  
Brian E Sedio ◽  
Marko J Spasojevic ◽  
Jonathan A Myers ◽  
S Joseph Wright ◽  
Maria D Person ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Wood Density ◽  
Plant Diversity ◽  
Community Assembly ◽  
Seed Mass ◽  
Biotic Interactions ◽  
Morphological Trait ◽  
Chemical Similarity ◽  
Precipitation And Temperature

Plant diversity varies immensely over large-scale gradients in temperature, precipitation, and seasonality at global and regional scales. This relationship may be driven in part by climatic variation in the relative importance of abiotic and biotic interactions to the diversity and composition of plant communities. In particular, biotic interactions may become stronger and more host specific with increasing precipitation and temperature, resulting in greater plant species richness in wetter and warmer environments. This hypothesis predicts that the many defensive compounds found in plants’ metabolomes should increase in richness and decrease in interspecific similarity with precipitation, temperature, and plant diversity. To test this prediction, we compared patterns of chemical and morphological trait diversity of 140 woody plant species among seven temperate forests in North America representing 16.2°C variation in mean annual temperature (MAT), 2,115 mm variation in mean annual precipitation (MAP), and from 10 to 68 co-occurring species. We used untargeted metabolomics methods based on data generated with liquid chromatography-tandem mass spectrometry to identify, classify, and compare 13,480 unique foliar metabolites and to quantify the metabolomic similarity of species in each community with respect to the whole metabolome and each of five broad classes of metabolites. In addition, we compiled morphological trait data from existing databases and field surveys for three commonly measured traits (specific leaf area [SLA], wood density, and seed mass) for comparison with foliar metabolomes. We found that chemical defense strategies and growth and allocation strategies reflected by these traits largely represented orthogonal axes of variation. In addition, functional dispersion of SLA increased with MAP, whereas functional richness of wood density and seed mass increased with MAT. In contrast, chemical similarity of co-occurring species decreased with both MAT and MAP, and metabolite richness increased with MAT. Variation in metabolite richness among communities was positively correlated with species richness, but variation in mean chemical similarity was not. Our results are consistent with the hypothesis that plant metabolomes play a more important role in community assembly in wetter and warmer climates, even at temperate latitudes, and suggest that metabolomic traits can provide unique insight to studies of trait-based community assembly.

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