Impacts of Climate Change on the Distribution of African Wild Olive Tree in the Arid Environments of Northern Ethiopia

International Journal of Ecology, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Climate change is impacting the sustainability of indigenous tree species. However, impacts climate on African olive ( Olea europaea subspecies Cuspidata ) are less‐explored. This study, conducted in Tigray, northern Ethiopia, aims to determine current and future distributions A total 225 presence points abundance O. within 20 m × plots at each location were collected. Additional input variables, such as 19 bioclimatic 3 topographic Pedologic data, used. Maxent software was employed predict distribution species under scenarios. The correlation between tree’s environmental factors ascertained using Spearman’s correlation. findings indicated that most crucial affecting temperature seasonality, altitude, precipitations during driest month. range covered 1979 km 2 (3.01%) Tigray. coverage expected increase by 13.64% 2070_RCP4.5 scenario. 2070_RCP8.5, a loss suitable habitats anticipated. Rainfall, slope, soil organic carbon, silt contents had positive with abundance, whereas sand, clay, bulk density, pH negative p < 0.05). In conclusion, may locally disappear due adverse effects RCP8.5. Hence, study recommends immediate situ ex conservation efforts sustain populations important values tree.

Language: Английский

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Response of Species to the Impact of Climate Change in the Gum Arabic Belt, Sudan: A Case Study in Acacia senegal

International Journal of Environment and Climate Change, Journal Year: 2024, Volume and Issue: 14(5), P. 305 - 323

Published: May 23, 2024

Sustainable management strategies of trees are important for indigenous agroforestry plant species, such as Acacia. Senegal (A. Senegal), due to the impacts rapid population growth, land use and climate change. The objective this investigation was predict spatio-temporal distribution A.senegal in Gum Arabic belt Sudan current (1985–2000) future scenarios (2021–2100). Bioclimatic data used modeling purposes utilizing Maxent, with assessment model precision conducted through utilization Area Under Curve (AUC) shown a high goodness-of-it (AUC=0.905±0.003 ). Significant differences were species between periods under selected Shared Socioeconomic Pathways (SSPs) SSP2-4.5 SSP5-8.5, scenario. Our findings indicated that main predictors influence precipitation wettest quarter maximum temperature warmest month. potential (25.4%), it is projected Acacia would expand 36.2%-87.7% (SSP2-4.5) 38.9-42.5% (SSP5-8.5). It expected A.cacia will create new environments suitable changes. Hence, research necessitates formulation strategic plan aimed rehabilitation plantations senegal cultivation these within existing prospective habitats conducive their existence.

Language: Английский

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Global Warming Will Drive Spatial Expansion of Prunus mira Koehn in Alpine Areas，Southeast Qinghai–Tibet Plateau

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 19, 2024

Global climate change exerts great effort for plants distributions. However the response of Prunus mira Koehn, one most important species ecological protection in southeast Qinghai-Tibet Plateau, to remains unclear. To explore factors on distribution Koehn context global change, MaxENT model is used predict suitable habitats Koehn. Our study indicated that primarily influenced by temperature rather than precipitation, warming can facilitate growth When seasonality (bio4) ranges from 134 576 and mean coldest quarter (bio11) − 2.6°C 2.7°C, it conducive Among four scenarios, optimal habitat predominantly concentrated river valley areas expected expand into higher altitude regions, particularly north southeast. SSP245 SSP370 pathways are spatial expansion findings highlight significant impact not precipitation this insight crucial stability conservation ecologically plant species.

Language: Английский

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Global Warming Will Drive Spatial Expansion of Prunus mira Koehne in Alpine Areas, Southeast Qinghai–Tibet Plateau

Forests, Journal Year: 2024, Volume and Issue: 15(11), P. 2022 - 2022

Published: Nov. 16, 2024

Global climate change exerts great effects on plant distributions. However, the response of Prunus mira Koehne, one most important species for ecological protection in southeast Qinghai–Tibet Plateau, to remains unclear. To explore factors affecting distribution P. context global change, MaxENT model is used predict suitable habitats mira. Our study indicated that Koehn primarily influenced by temperature rather than precipitation, and warming can facilitate growth When seasonality (bio4) ranges from 134 576 mean coldest quarter (bio11) −2.6 °C 2.7 °C, it conducive Among four scenarios, optimal habitat predominantly concentrated river valley areas expected expand into higher altitude regions, particularly north southeast. SSP245 SSP370 pathways are spatial expansion findings highlight significant impact not precipitation mira, this insight crucial stability conservation ecologically species.

Language: Английский

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