Brachypodium and the Abiotic Environment

2015 ◽  
pp. 291-311 ◽  
Author(s):  
David L. Des Marais ◽  
Thomas E. Juenger
Keyword(s):  
Abiotic Environment

scholarly journals Effect of Soil Diversity on Forest Plant Species Abundance: A Case Study from Central-European Highlands

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 534
Author(s):  
Pavel Samec ◽  
Jiří Volánek ◽  
Miloš Kučera ◽  
Pavel Cudlín
Keyword(s):  
Soil Properties ◽  
Plant Species ◽  
Plant Diversity ◽  
Species Abundance ◽  
Plant Distribution ◽  
Soil Diversity ◽  
Abiotic Environment ◽  
Soil Group ◽  
Biogeographical Regions ◽  
Forest Distribution

Plant distribution is most closely associated with the abiotic environment. The abiotic environment affects plant species’ abundancy unevenly. The asymmetry is further deviated by human interventions. Contrarily, soil properties preserve environmental influences from the anthropogenic perturbations. The study examined the supra-regional similarities of soil effects on plant species’ abundance in temperate forests to determine: (i) spatial relationships between soil property and forest-plant diversity among geographical regions; (ii) whether the spatial dependencies among compared forest-diversity components are influenced by natural forest representation. The spatial dependence was assessed using geographically weighted regression (GWR) of soil properties and plant species abundance from forest stands among 91 biogeographical regions in the Czech Republic (Central Europe). Regional soil properties and plant species abundance were acquired from 7550 national forest inventory plots positioned in a 4 × 4 km grid. The effect of natural forests was assessed using linear regression between the sums of squared GWR residues and protected forest distribution in the regions. Total diversity of forest plants is significantly dependent on soil-group representation. The soil-group effect is more significant than that of bedrock bodies, most of all in biogeographical regions with protected forest representation >50%. Effects of soil chemical properties were not affected by protected forest distribution. Spatial dependency analysis separated biogeographical regions of optimal forest plant diversity from those where inadequate forest-ecosystem diversity should be increased alongside soil diversity.

Conditional Outcomes in the Relationship between Pine and Ectomycorrhizal Fungi in Relation to Biotic and Abiotic Environment

Oikos ◽  
1997 ◽  
Vol 80 (1) ◽  
pp. 112 ◽  
Author(s):  
Heikki Setälä ◽  
Johanna Rissanen ◽  
Anna Mari Markkola ◽  
Heikki Setala
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Abiotic Environment ◽  
Conditional Outcomes ◽  
The Relationship

scholarly journals Functional diversity in European estuaries: Relating the composition of fish assemblages to the abiotic environment

2010 ◽  
Vol 88 (3) ◽  
pp. 329-338 ◽  
Author(s):  
D. Nicolas ◽  
J. Lobry ◽  
O. Le Pape ◽  
P. Boët
Keyword(s):  
Functional Diversity ◽  
Fish Assemblages ◽  
Abiotic Environment ◽  
European Estuaries

scholarly journals Phylogenetic and Functional Traits Verify the Combined Effect of Deterministic and Stochastic Processes in the Community Assembly of Temperate Forests along an Elevational Gradient

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 591
Author(s):  
Wensong Zhou ◽  
Yuxin Zhang ◽  
Shuang Zhang ◽  
Basil N. Yakimov ◽  
Keming Ma
Keyword(s):  
Stochastic Processes ◽  
Functional Traits ◽  
Community Assembly ◽  
Woody Plants ◽  
Elevational Gradient ◽  
Combined Effect ◽  
Abiotic Environment ◽  
Spatial Factors ◽  
Assembly Mechanism ◽  
Deterministic Processes

Explaining community assembly mechanisms along elevational gradients dominated by deterministic processes or stochastic processes is a pressing challenge. Many studies suggest that phylogenetic and functional diversity are significant indicators of the process. In this study, we analyzed the structure and beta diversity of phylogenetic and functional traits along an elevational gradient and discussed the effects of environmental and spatial factors. We found that the phylogenetic and functional traits showed inconsistent changes, and their variations were closely related to the abiotic environment. The results suggested that the community assembly of woody plants was obviously affected by the combined effect of deterministic processes and the stochastic hypothesis (primarily by the latter). Phylogenetic and functional traits had a certain relationship but changed according to different rules. These results enhance our understanding of the assembly mechanism of forest communities by considering both phylogenetic and functional traits.

Milankovitch cycles and their effects on species in ecological and evolutionary time

Paleobiology ◽  
1990 ◽  
Vol 16 (1) ◽  
pp. 11-21 ◽  
Author(s):  
K. D. Bennett
Keyword(s):  
Time Scales ◽  
Climatic Changes ◽  
Milankovitch Cycles ◽  
Mass Extinctions ◽  
Geological Time ◽  
Evolutionary Time ◽  
Abiotic Environment ◽  
Earth History ◽  
Microevolutionary Change ◽  
Second Tier

The Quaternary ice ages were paced by astronomical cycles with periodicities of 20–100 k.y. (Milankovitch cycles). These cycles have been present throughout earth history. The Quaternary fossil record, marine and terrestrial, near to and remote from centers of glaciation, shows that communities of plants and animals are temporary, lasting only a few thousand years at the most. Response of populations to the climatic changes of Quaternary Milankovitch cycles can be taken as typical of the way populations have behaved throughout earth history. Milankovitch cycles thus force an instability of climate and other aspects of the biotic and abiotic environment on time scales much less than typical species durations (1–30 m.y.). Any microevolutionary change that accumulates on a time scale of thousands of years is likely to be lost as communities are reorganized following climatic changes. A four-tier hierarchy of time scales for evolutionary processes can be constructed as follows: ecological time (thousands of years), Milankovitch cycles (20–100 k.y.), geological time (millions of years), mass extinctions (approximately 26 m.y.). “Ecological time” and “geological time” are defined temporally as the intervals between events of the second and fourth tiers, respectively. Gould's (1985) “paradox of the first tier” can be resolved, at least in part, through the undoing of Darwinian natural selection at the first tier by Milankovitch cycles at the second tier.

scholarly journals DEVELOPMENT OF SILVOFISHERY IN MANGROVE FOREST, BUDENG VILLAGE - JEMBRANA, BALI

2019 ◽  
Vol 1 (2) ◽  
pp. 13
Author(s):  
Ajeng Nurul Fitriawati ◽  
Joko Triwanto ◽  
Amir Syarifuddin
Keyword(s):  
Mangrove Forest ◽  
Vegetation Density ◽  
Abiotic Environment ◽  
Mangrove Environment ◽  
Density Factor ◽  
Qualitative Descriptive ◽  
Vegetation Stand ◽  
Environment Parameters ◽  
Descriptive Method

The transfer of mangrove forest into ponds of the silvofishery system becomes one of the solutions in managing the environmental impact. Many areas that have succeeded in developing and highly relevant are applied in other areas such as the area of ponds located in Budeng Village, Jembrana regency, Bali which began to be abandoned threatening to decrease the quality of the environment. The purpose of this research is to study the development of silvofishery system in Budeng village mangrove area.The study was conducted during January - February 2017. The method of plotting plot with combination of stripping path was used to obtain the biotic and abiotic environment of mangrove. Data analysis with qualitative descriptive method according to land criteria for silvofishery development.Biotic and abiotic mangrove environment parameters obtained by pond location in Budeng Village were matched with development table for silvofishery system recommended for silvofishery area. However, it is necessary to stage the addition of mangrove vegetation stand before the silvofishery system is applied because only the vegetation density factor is lacking.

scholarly journals LIMITING FACTORS OF THE ABIOTIC ENVIRONMENT AND BIOLOGICAL CHARACTERISTICS OF IMPORTANT COMMERCIAL MIGRATORY FISH SPECIES OF THE AZOV SEA

2020 ◽  
Vol 3 (1) ◽  
pp. 27-41 ◽  
Author(s):  
S. Yu. Cherednikov ◽  
E. S. Vlasenko ◽  
N. A. Zherdev ◽  
I. D. Kuznetsova ◽  
S. V. Lukyanov
Keyword(s):  
Fish Species ◽  
Biological Characteristics ◽  
Limiting Factors ◽  
Migratory Fish ◽  
Abiotic Environment ◽  
Azov Sea

Chapter 11. Variation II Biotic and Abiotic Environment

Mate Choice ◽  
2017 ◽  
pp. 288-305
Keyword(s):  
Abiotic Environment

The Abiotic Environment

Entomology ◽  
2005 ◽  
pp. 655-690
Keyword(s):  
Abiotic Environment
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