The potential geographical distribution of Haloxylon across Central Asia under climate change in the 21st century

Agricultural and Forest Meteorology, Journal Year: 2019, Volume and Issue: 275, P. 243 - 254

Published: June 4, 2019

Language: Английский

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MaxEnt Modeling for Predicting Suitable Habitat for Endangered Tree Keteleeria davidiana (Pinaceae) in China

Forests, Journal Year: 2023, Volume and Issue: 14(2), P. 394 - 394

Published: Feb. 15, 2023

Understanding species response to climate change is essential for the conservation and utilization of resources under rapid in future. In this study, present future suitable distribution range Keteleeria davidiana, a tertiary relict gymnosperm, was predicted based on maximum entropy model (MaxEnt). A total 158 occurrence records were collected after removing duplicated records. Six low-correlation variables used predict distributions. The three key factors that affect K. davidiana temperature seasonality (34.96%), mean coldest quarter (28.30%) precipitation (13.58%). most zone between 377.4 843.4. highly area located mountainous regions central southeast China, which accounted 13.39% whole study area. With warming future, estimated decrease by 35% (SSP1-2.6 scenario) or 85% (SSP5-8.5 scenario). This has provided sufficient scientific basis situ ex davidiana.

Language: Английский

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Impacts of anthropogenic climate change on tropical montane forests: an appraisal of the evidence

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2023, Volume and Issue: 98(4), P. 1200 - 1224

Published: March 29, 2023

ABSTRACT In spite of their small global area and restricted distributions, tropical montane forests (TMFs) are biodiversity hotspots important ecosystem services providers, but also highly vulnerable to climate change. To protect preserve these ecosystems better, it is crucial inform the design implementation conservation policies with best available scientific evidence, identify knowledge gaps future research needs. We conducted a systematic review an appraisal evidence quality assess impacts change on TMFs. identified several skews shortcomings. Experimental study designs controls long‐term (≥10 years) data sets provide most reliable were rare gave incomplete understanding Most studies based predictive modelling approaches, short‐term (<10 cross‐sectional designs. Although methods moderate circumstantial they can advance our effects. Current suggests that increasing temperatures rising cloud levels have caused distributional shifts (mainly upslope) biota, leading alterations in ecological functions. Neotropical TMFs studied, thus derived there serve as proxy for responses under‐studied regions elsewhere. focused vascular plants, birds, amphibians insects, other taxonomic groups poorly represented. at species or community levels, marked paucity genetic studies, limiting adaptive capacity TMF biota. highlight need widen methodological, thematic geographical scope under address uncertainties. short term, however, in‐depth well‐studied advances computer approaches offer sources information expeditious action threatened forests.

Language: Английский

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Cost-efficiency analysis of seedling introduction vs. direct seeding of Oreomunnea mexicana for secondary forest enrichment

Forest Ecology and Management, Journal Year: 2017, Volume and Issue: 409, P. 399 - 406

Published: Nov. 29, 2017

Language: Английский

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Current and Future Distribution of Five Timber Forest Species in Amazonas, Northeast Peru: Contributions towards a Restoration Strategy

Diversity, Journal Year: 2020, Volume and Issue: 12(8), P. 305 - 305

Published: Aug. 8, 2020

Forest and land degradation is a serious problem worldwide the Peruvian National Map of Degraded Areas indicates that 13.78% (177,592.82 km2) country’s territory degraded. plantations can be restoration strategy, while conserving economically important species affected by climate change providing forestry material for markets. This study modelled distribution under current conditions scenarios five Timber Species (TFS) in Amazonas Department, northeastern Peru. Modelling was conducted with Maximum Entropy (MaxEnt) using 26 environmental variables. Of total Cedrelinga cateniformis, Ceiba pentandra, Apuleia leiocarpa, Cariniana decandra Cedrela montana, 34.64% (2985.51 km2), 37.96% (2155.86 35.34% (2132.57 33.30% (1848.51 35.81% (6125.44 respectively, correspond to degraded areas and, therefore, there potential these species. By 2050 2070, all TFS are projected their compared ranges, regardless whether it will an expansion and/or contraction. Consequently, this methodology intended guide economic ecological success forest reducing deforestation or similar activities.

Language: Английский

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Plant functional traits related to aboveground tree biomass in cloud forests of southeastern Mexico

Trees Forests and People, Journal Year: 2025, Volume and Issue: unknown, P. 100767 - 100767

Published: Jan. 1, 2025

Language: Английский

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Temporal and Spatial Dynamics of Rodent Species Habitats in the Ordos Desert Steppe, China

Animals, Journal Year: 2025, Volume and Issue: 15(5), P. 721 - 721

Published: March 3, 2025

Climate change is driving the restructuring of global biological communities. As a species sensitive to climate change, studying response small rodents helpful indirectly understand changes in ecology and biodiversity certain region. Here, we use MaxEnt (maximum entropy) model predict distribution patterns, main influencing factors, range various Ordos desert steppe China under different scenarios future (2050s: average for 2041-2060). The results show that when parameters are FC = LQHPT, RM 4, optimal AUC 0.833. We found NDVI (normalized difference vegetation index), Bio 12 (annual precipitation), TOC (total organic carbon) important factors affecting suitability rodent habitat At same time, were also species. selected 4 dominant analysis that, situation warming, high-suitability area Allactaga sibirica Phodopus roborovskii will decrease, while Meriones meridianus unguiculatus increase. Our research suggest local governments should take early preventive measures, strengthen protection, respond ecological challenges brought about by promptly.

Language: Английский

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Potential geographical distribution of Stipa purpurea across the Tibetan Plateau in China under climate change in the 21st century

Global Ecology and Conservation, Journal Year: 2022, Volume and Issue: 35, P. e02064 - e02064

Published: Feb. 17, 2022

Stipa purpurea (S. purpurea), a dominant herbage resource in alpine steppe, has an important impact on animal husbandry and the maintenance of natural environmental stability Tibetan Plateau (TP). As hot spot global warming, TP been greatly affected by climate change. Based MaxEnt model, we simulated potential habitat changes S. 21st century using 197 distribution records combined with current (2000–2018) future (2021–2100) data. We also analyzed critical factors influencing driving The results showed that model performed well, area under curve (AUC) value training data test being 0.845 0.722, respectively. Annual precipitation, elevation, annual average temperature were identified as most shaping purpurea, was factor Under climate, 55.15 × 104 km2, mainly distributed Eastern Qinghai-Qilian montane Southern Tibet shrub-steppe, Ngari desert. By end century, overall increasing trend, two shared socio-economic pathways (SSP245 SSP585) 87.37 km2 57.80 A comparison warming scenarios indicated had positive effect within certain range, but continued would limit ranges. In response to habitats will shift northwestward higher altitudes. These provide reference for implementing long-term conservation management strategies similar regions.

Language: Английский

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Distribution Models of Timber Species for Forest Conservation and Restoration in the Andean-Amazonian Landscape, North of Peru

Sustainability, Journal Year: 2020, Volume and Issue: 12(19), P. 7945 - 7945

Published: Sept. 25, 2020

The Andean-Amazonian landscape has been universally recognized for its wide biodiversity, and is considered as global repository of ecosystem services. However, the severe loss forest cover rapid reduction timber species seriously threaten this biodiversity. In study, we have modeled distribution ten most exploited in Amazonas (Peru) to identify priority areas conservation restoration. Statistical cartographic protocols were applied with 4454 records 26 environmental variables using a Maximum Entropy model (MaxEnt). result showed that altitudinal variable was main regulatory factor significantly controls species. We found nine are distributed below 1000 m above sea level (a.s.l.), except Cedrela montana, which 1500 a.s.l., covering 40.68%. Eight 10 can coexist, highest percentage potential restoration area montana (14.57% from Amazonas). less than 1.33% Amazon some protected under category conservation. Our study will contribute tool sustainable management forests provide geographic information complement plans.

Language: Английский

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Morphological and genetic diversification ofRussula floriformis, sp. nov., along the Isthmus of Panama

Mycologia, Journal Year: 2021, Volume and Issue: 113(4), P. 807 - 827

Published: May 27, 2021

Species of Russula are ubiquitous members ectomycorrhizal fungal communities in tropical ecosystems. However, an important part the total diversity this genus and its biogeographic patterns is unknown due to lack studies on We combined molecular, morphological, ecological, data elaborate concepts for two new subspecies R. floriformis (subsection Substriatinae). subsp. symphoniae described as from montane forest dominated by Quercus and/or Oreomunnea (Fagales) Colombia Panama, respectively. Phylogenies were constructed using nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS), D1-D2 domains 28S (28S), partial regions second largest subunit RNA polymerase II (rpb2) translation elongation factor 1-alpha (tef1). Similar environmental conditions, similar morphology, ITS sequence similarity higher than 99% with only three different positions indicate that these closely related. Detailed observations microscopic structures analyses further DNA loci, however, revealed morphological molecular characteristics allow distinguishing floriformis. Spatial distribution phylogenetic proximity their hosts, i.e., species Quercus, suggest diversification a result comigration, adaptation, geographic isolation along Isthmus Panama during Pliocene Pleistocene.

Language: Английский

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