Modeling the Boundaries of Plant Ecotones of Mountain Ecosystems

Ivanova, Yulia; Soukhovolsky, V. G.

doi:10.3390/f7110271

Cited by 6 publications

(7 citation statements)

References 43 publications

(45 reference statements)

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“…The variation of λ will simply modify or eventually destroy ecotones. The corresponding transition, as λ varies, appears to be akin to continuous phase transitions [63]. Again, qualitatively, this is what we observe from the CA lattices' time evolution considering distinct values of I (see Figures 4 and 11).…”

Section: Discussionsupporting

confidence: 65%

“…It is important to mention that actual ecotones have been associated with phase transitions [61,62], in fact to second-order ones, i.e., to critical phenomena [63]. Thus, in spite of the great simplicity of our CA model, it readily reproduces two of the most important aspects of ecotones:…”

Section: Discussionmentioning

confidence: 99%

“…(ii) Ecotones' boundary extensions and shapes usually are driven by climate conditions and species competition [26][27][28]63]. Such boundaries may or may not arise depending on the strength and interplay of these factors (say, quantified by a parameter λ).…”

Section: Discussionmentioning

confidence: 99%

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Emergence of Distinct Spatial Patterns in Cellular Automata with Inertia: A Phase Transition-Like Behavior

Kramer

Koehler

Fiore

et al. 2017

Entropy

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Abstract:We propose a Cellular Automata (CA) model in which three ubiquitous and relevant processes in nature are present, namely, spatial competition, distinction between dynamically stronger and weaker agents and the existence of an inner resistance to changes in the actual state S n (=−1,0,+1) of each CA lattice cell n (which we call inertia). Considering ensembles of initial lattices, we study the average properties of the CA final stationary configuration structures resulting from the system time evolution. Assuming the inertia a (proper) control parameter, we identify qualitative changes in the CA spatial patterns resembling usual phase transitions. Interestingly, some of the observed features may be associated with continuous transitions (critical phenomena). However, certain quantities seem to present jumps, typical of discontinuous transitions. We argue that these apparent contradictory findings can be attributed to the inertia parameter's discrete character. Along the work, we also briefly discuss a few potential applications for the present CA formulation.

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 99%

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Emergence of Distinct Spatial Patterns in Cellular Automata with Inertia: A Phase Transition-Like Behavior

Kramer

Koehler

Fiore

et al. 2017

Entropy

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“…The ecological function and services of wetlands are essential for the sustainable development of lives (Gurung et al, 2009). Ecotones are transition areas between different natural systems (ecosystems, landscapes), between natural and anthropogenic systems, between different media (water-land), and between biomes (Ivanova and Soukhovolsky, 2016). The ecological environment of land-lake ecotone is complex and changeable.…”

Section: Introductionmentioning

confidence: 99%

“…Floral assessment is an important criterion for the assessment of life forms and habitat for an area (Klosowski, 1993). Riparian vegetation is a typical element of the lake district landscapes (Ivanova and Soukhovolsky, 2016). In the world, wetlands and their associated species are under pressure of decline and system degradation.…”

Section: Introductionmentioning

confidence: 99%

Ecotone vegetation and water quality of Rara and Begnas Lakes, Nepal

et al. 2018

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Land-water interfaces of lakes are highly dynamic and are responsible for the stability and maintenance of ecosystems. This study was carried out to understand the ecotone vegetation and the physico-chemical characteristics of waters of Begnas and Rara lakes of Nepal. For vegetation survey, line transects (perpendicular bi-sector to lake boundary), were used along the lake boundaries at an interval of 500 m; three quadrats of 1 m x 1 m size were laid on each line transect (off shore, boundary line, and on shore). All vegetation species in the sample quadrates were recorded. For probing water quality, lakes were divided into three blocks, then sampling was conducted on a consecutive day. Physico-chemical parameters —temperature, pH, electric conductivity (EC), dissolved oxygen (DO), total dissolved solid (TDS), ammonia, and nitrate—were measured. A total of 55 species under 38 families and 28 orders were recorded from ecotone of Begnas lake. In Rara lake, 56 species of 41 families and 22 orders were recorded. Poaceae was the dominant largest family in Begnas which was followed by Asteraceae. In Rara lake, Rosaceae was the dominant family which was followed by Pinaceae. Temperature, pH, and DO values decreased with depth, but EC and TDS e increased with depth, in both Begnas and Rara lakes. Ammonia and Nitrate were below the detectable limit of the instrument, indicating low nutrient contents of both lakes. The study established the baseline information about the diversity of ecotone vegetation; both the lakes show clear changes in physiochemical parameters with lake depths.

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Allogenic succession of Korean fir (Abies koreana Wils.) forests in different climate condition

Lim

Jung

et al. 2018

Ecological Research

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This study was conducted to clarify the changes in vegetation that occurred due to changing environmental factors, especially climate, at Korean fir (Abies koreana) stands with different climatic conditions established on Mt. Halla, which is located on a southern island of South Korea. The difference of species composition between sites was large and depended on elevation and slope aspect at lower elevations, whereas not as much among stands or between sites at the highest elevations of each slope aspect. It was interpreted that differences and similarities among sites were dominated by the microclimate determined by the topographic conditions of each site. The result of vegetation dynamics analysis predicted that the Korean fir forests would be replaced by temperate forests such as Mongolian oak (Quercus mongolica) forests or shade intolerant forests composed of early successional species such as Korean cherry (Prunus maximowiczii) and Spreading yew (Taxus cuspidata) at lower elevations, while would continuously persist at the highest elevations. We interpreted the vegetation changes appeared at the lower elevations as an allogenic succession, as the recent rapid climate changes directly and indirectly dominated the change. The species distribution modeling predicted that the distributional range of Korean fir would decrease to 13.4 and 10.1% of the current distribution in 2050 and 2070, respectively. Further, the distribution modeling showed that the sites located at lower elevations would no longer be within the distributional range of Korean fir forest, and those at the highest elevations would be sparsely scattered in fragmented states.

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Modeling the Boundaries of Plant Ecotones of Mountain Ecosystems

Cited by 6 publications

References 43 publications

Emergence of Distinct Spatial Patterns in Cellular Automata with Inertia: A Phase Transition-Like Behavior

Emergence of Distinct Spatial Patterns in Cellular Automata with Inertia: A Phase Transition-Like Behavior

Ecotone vegetation and water quality of Rara and Begnas Lakes, Nepal

Allogenic succession of Korean fir (Abies koreana Wils.) forests in different climate condition

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