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Shang X, Qin W, Yang B, Dai Q, Pan H, Yang X, Gu X, Yang Z, Zhang Z, Zhang L. Integrated framework for dynamic conservation of bamboo forest in giant panda habitat under climate change. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 368:122052. [PMID: 39128359 DOI: 10.1016/j.jenvman.2024.122052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/28/2024] [Accepted: 07/29/2024] [Indexed: 08/13/2024]
Abstract
Climate change presents formidable challenges to forest biodiversity and carbon storage. Bamboo forests will be affected particularly in Southwest China's mountainous regions. Bamboo serves as not only a key food resource and habitat for giant panda Ailuropoda melanoleuca but also a potential carbon sink due to its rapid energy-to-matter conversion capability. We employ the MaxEnt model to project the distribution shifts of 20 giant panda foraged bamboo species in Sichuan Province under future climate scenarios, utilizing climate data of 30m resolution. Based on the changes in the diversity and distribution area of bamboo communities caused by climate change, the changing of giant pandas' food resources and the carbon storage of bamboo forests were calculated. The results indicated that the area of bamboo communities is projected to expand by 17.94%-60.88% more than now by the end of the 21st century. We analyzed the energy balance between the dietary needs of giant pandas and the energy provided by bamboo. We predicted that bamboo communities from 2000 to 2150 could support the continuous growth of the giant panda population (6533 wild individuals by 2140-2150 in an ideal state in Sichuan province). However, the species diversity and carbon storage of bamboo forests face out-of-sync fluctuations, both temporally and spatially. This is a critical issue for subalpine forest ecosystem management under climate change. Therefore, we propose a dynamic conservation management framework for giant panda habitats across spatial and temporal scales. This framework aims to facilitate the adaptation of subalpine forest ecosystems to climate change. This innovative approach, which integrates climate change into the conservation strategy for endangered species, contributes a conservation perspective to global climate action, highlighting the interconnectedness of biodiversity preservation and climate mitigation.
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Affiliation(s)
- Xiaotong Shang
- Key Laboratory of Biodiversity and Ecological Engineering, School of Life Sciences, Ministry of Education, Beijing Normal University, Beijing, 100875, China
| | - Weirui Qin
- School of Life Science (School of Giant Panda), China West Normal University, Nanchong, 637009, China; Daxiangling Nature Reserve Management and Protection Center of Yingjing County, Ya'an, Sichuan, 625000, China
| | - Biao Yang
- School of Life Science (School of Giant Panda), China West Normal University, Nanchong, 637009, China; Society of Entrepreneurs and Ecology (SEE) Foundation, Beijing, 100020, China.
| | - Qiang Dai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; University of Chinese Academy of Sciences, Beijing, China
| | - Han Pan
- Society of Entrepreneurs and Ecology (SEE) Foundation, Beijing, 100020, China
| | - Xuyu Yang
- Sichuan Station of Wildlife Survey and Management, Chengdu, 610081, China
| | - Xiaodong Gu
- Giant Panda National Park Administration, Chengdu, 610081, China
| | - Zhisong Yang
- Sichuan Academy of Giant Panda, Chengdu, 610081, China
| | - Zejun Zhang
- School of Life Science (School of Giant Panda), China West Normal University, Nanchong, 637009, China
| | - Li Zhang
- Key Laboratory of Biodiversity and Ecological Engineering, School of Life Sciences, Ministry of Education, Beijing Normal University, Beijing, 100875, China.
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Ortega-Rosas CI, Gutiérrez-Ruacho OG, Brito-Castillo L, Calderón-Ezquerro MC, Guerrero-Guerra C, Amaya-García V. Five-year airborne pollen calendar for a Sonoran Desert city and the relationships with meteorological variability. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2023; 67:1853-1868. [PMID: 37718383 DOI: 10.1007/s00484-023-02546-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/04/2023] [Accepted: 08/20/2023] [Indexed: 09/19/2023]
Abstract
Aerobiological studies are still scarce in northwestern Mexico where allergenic pollen have great impacts on health. Current global pollution and climate change problems are closely related to many allergic diseases, enhancing the need to continue researching these issues and improve life quality. This study provides the first Pollen Calendar for Hermosillo, Sonora, México. Airborne pollen were continuously collected for 5 years (2015-2019). The standardized methodology with a Hirst-type spore trap proposed for global aerobiological studies was used. Weather data were also taken from a station located in the city and used to explore correlations between climate and airborne pollen concentrations in different seasons. The most important pollen taxa recorded in air belongs to herbaceous pollen, such as Poaceae, Ambrosia, Asteraceae, Chenopodiaceae-Amaranthaceae, and some shrub trees typical of this arid region, such as Nyctaginaceae, Prosopis, Parkinsonia, and Fabaceae. The most critical herbaceous pollen related to allergies have a long mean pollen season throughout the years, and the most critical periods with high pollen concentration in air occur in two seasons, spring (March-April) and summer-fall (August-October). In these 5 years, the correlation analyses for these two peaks indicate that a link exists between pollen in the air and decreases in precipitation and temperatures, and an increase in relative humidity. An inter-annual variability in pollen concentrations was recorded related to different weather conditions. Although pollen calendars are location-specific, they are useful for future research on biological air quality scenarios in different cities. Using this standardized method for other regions can provide pollen calendars that have been proven clinically important in allergic disease management worldwide.
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Affiliation(s)
- C I Ortega-Rosas
- Cuerpo Académico de Recursos Naturales, Licenciatura en Ecología, Unidad Académica Hermosillo, Universidad Estatal de Sonora, Ley Federal del Trabajo S.N. Col. Apolo. Hermosillo, C.P. 83100, Sonora, Mexico.
| | - O G Gutiérrez-Ruacho
- Cuerpo Académico de Recursos Naturales, Licenciatura en Ecología, Unidad Académica Hermosillo, Universidad Estatal de Sonora, Ley Federal del Trabajo S.N. Col. Apolo. Hermosillo, C.P. 83100, Sonora, Mexico
| | - L Brito-Castillo
- Centro de Investigaciones Biológicas del Noroeste S.C., Guaymas, Sonora, Mexico
| | - M C Calderón-Ezquerro
- Red Mexicana de Aerobiología, Instituto de Ciencias de La Atmósfera Y Cambio Climático, UNAM, Mexico City, Mexico
| | - C Guerrero-Guerra
- Red Mexicana de Aerobiología, Instituto de Ciencias de La Atmósfera Y Cambio Climático, UNAM, Mexico City, Mexico
| | - V Amaya-García
- Cuerpo Académico de Recursos Naturales, Licenciatura en Ecología, Unidad Académica Hermosillo, Universidad Estatal de Sonora, Ley Federal del Trabajo S.N. Col. Apolo. Hermosillo, C.P. 83100, Sonora, Mexico
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Ahmadi N, Barry MB, Frouin J, de Navascués M, Toure MA. Genome Scan of Rice Landrace Populations Collected Across Time Revealed Climate Changes' Selective Footprints in the Genes Network Regulating Flowering Time. RICE (NEW YORK, N.Y.) 2023; 16:15. [PMID: 36947285 PMCID: PMC10033818 DOI: 10.1186/s12284-023-00633-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Analyses of the genetic bases of plant adaptation to climate changes, using genome-scan approaches, are often conducted on natural populations, under hypothesis of out-crossing reproductive regime. We report here on a study based on diachronic sampling (1980 and 2011) of the autogamous crop species, Oryza sativa and Oryza glaberrima, in the tropical forest and the Sudanian savannah of West Africa. First, using historical meteorological data we confirmed changes in temperatures (+ 1 °C on average) and rainfall regime (less predictable and reduced amount) in the target areas. Second, phenotyping the populations for phenology, we observed significantly earlier heading time in the 2010 samples. Third, implementing two genome-scan methods (one of which specially developed for selfing species) on genotyping by sequencing genotypic data of the two populations, we detected 31 independent selection footprints. Gene ontology analysis detected significant enrichment of these selection footprints in genes involved in reproductive processes. Some of them bore known heading time QTLs and genes, including OsGI, Hd1 and OsphyB. This rapid adaptive evolution, originated from subtle changes in the standing variation in genetic network regulating heading time, did not translate into predominance of multilocus genotypes, as it is often the case in selfing plants, and into notable selective sweeps. The high adaptive potential observed results from the multiline genetic structure of the rice landraces, and the rather large and imbricated genetic diversity of the rice meta-population at the farm, the village and the region levels, that hosted the adaptive variants in multiple genetic backgrounds before the advent of the environmental selective pressure. Our results illustrate the evolution of in situ diversity through processes of human and natural selection, and provide a model for rice breeding and cultivars deployment strategies aiming resilience to climate changes. It also calls for further development of population genetic models for adaptation of plant populations to environmental changes. To our best knowledge, this is the first study dealing with climate-changes' selective footprint in crops.
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Affiliation(s)
- Nourollah Ahmadi
- UMR AGAP, CIRAD, TA-A 108/03, Avenue Agropolis, 34398, Montpellier Cedex 5, France.
- AGAP, CIRAD, INRA, Montpellier SupAgro, Univ Montpellier, Montpellier, France.
| | | | - Julien Frouin
- UMR AGAP, CIRAD, TA-A 108/03, Avenue Agropolis, 34398, Montpellier Cedex 5, France
- AGAP, CIRAD, INRA, Montpellier SupAgro, Univ Montpellier, Montpellier, France
| | - Miguel de Navascués
- CBGP, CIRAD, INRAE, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France
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Pfeilsticker TR, Jones RC, Steane DA, Vaillancourt RE, Potts BM. Molecular insights into the dynamics of species invasion by hybridisation in Tasmanian eucalypts. Mol Ecol 2023; 32:2913-2929. [PMID: 36807951 DOI: 10.1111/mec.16892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/26/2022] [Accepted: 01/26/2023] [Indexed: 02/22/2023]
Abstract
In plants where seed dispersal is limited compared with pollen dispersal, hybridisation may enhance gene exchange and species dispersal. We provide genetic evidence of hybridisation contributing to the expansion of the rare Eucalyptus risdonii into the range of the widespread Eucalyptus amygdalina. These closely related tree species are morphologically distinct, and observations suggest that natural hybrids occur along their distribution boundaries and as isolated trees or in small patches within the range of E. amygdalina. Hybrid phenotypes occur outside the range of normal dispersal for E. risdonii seed, yet in some hybrid patches small individuals resembling E. risdonii occur and are hypothesised to be a result of backcrossing. Using 3362 genome-wide SNPs assessed from 97 individuals of E. risdonii and E. amygdalina and 171 hybrid trees, we show that (i) isolated hybrids match the genotypes expected of F1 /F2 hybrids, (ii) there is a continuum in the genetic composition among the isolated hybrid patches from patches dominated by F1 /F2 -like genotypes to those dominated by E. risdonii-backcross genotypes, and (iii) the E. risdonii-like phenotypes in the isolated hybrid patches are most-closely related to proximal larger hybrids. These results suggest that the E. risdonii phenotype has been resurrected in isolated hybrid patches established from pollen dispersal, providing the first steps in its invasion of suitable habitat by long-distance pollen dispersal and complete introgressive displacement of E. amygdalina. Such expansion accords with the population demographics, common garden performance data, and climate modelling which favours E. risdonii and highlights a role of interspecific hybridisation in climate change adaptation and species expansion.
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Affiliation(s)
- Thais R Pfeilsticker
- School of Natural Sciences and ARC Training Centre for Forest Value, University of Tasmania, Hobart, Tasmania, Australia
| | - Rebecca C Jones
- School of Natural Sciences and ARC Training Centre for Forest Value, University of Tasmania, Hobart, Tasmania, Australia
| | - Dorothy A Steane
- School of Natural Sciences and ARC Training Centre for Forest Value, University of Tasmania, Hobart, Tasmania, Australia
| | - René E Vaillancourt
- School of Natural Sciences and ARC Training Centre for Forest Value, University of Tasmania, Hobart, Tasmania, Australia
| | - Brad M Potts
- School of Natural Sciences and ARC Training Centre for Forest Value, University of Tasmania, Hobart, Tasmania, Australia
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Li Y, Li X, Sylvester SP, Zhang M, Wang X, Duan Y. Plastid genomes reveal evolutionary shifts in elevational range and flowering time of Osmanthus (Oleaceae). Ecol Evol 2022; 12:e8777. [PMID: 35386867 PMCID: PMC8975774 DOI: 10.1002/ece3.8777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/20/2022] Open
Abstract
Species of Osmanthus are economically important ornamental trees, yet information regarding their plastid genomes (plastomes) have rarely been reported, thus hindering taxonomic and evolutionary studies of this small but enigmatic genus. Here, we performed comparative genomics and evolutionary analyses on plastomes of 16 of the 28 currently accepted species, with 11 plastomes newly sequenced. Phylogenetic studies identified four main lineages within the genus that are here designated the: "Caucasian Osmanthus" (corresponding to O. decorus), "Siphosmanthus" (corresponding to O. sect. Siphosmanthus), "O. serrulatus + O. yunnanensis," and "Core Osmanthus: (corresponding to O. sect. Osmanthus + O. sect. Linocieroides). Molecular clock analysis suggested that Osmanthus split from its sister clade c. 15.83 Ma. The estimated crown ages of the lineages were the following: genus Osmanthus at 12.66 Ma; "Siphosmanthus" clade at 5.85 Ma; "O. serrulatus + O. yunnanensis" at 4.89 Ma; and "Core Osmanthus: clade at 6.2 Ma. Ancestral state reconstructions and trait mapping showed that ancestors of Osmanthus were spring flowering and originated at lower elevations. Phylogenetic principal component analysis clearly distinguished spring-flowering species from autumn-flowering species, suggesting that flowering time differentiation is related to the difference in ecological niches. Nucleotide substitution rates of 80 common genes showed slow evolutionary pace and low nucleotide variations, all genes being subjected to purifying selection.
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Affiliation(s)
- Yongfu Li
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
- Department of Botany and Biodiversity Research CentreUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Xuan Li
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
- Department of Botany and Biodiversity Research CentreUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Steven Paul Sylvester
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
| | - Min Zhang
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
| | - Xianrong Wang
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
| | - Yifan Duan
- Co‐Innovation Center for Sustainable Forestry in Southern ChinaCollege of Biology and the EnvironmentInternational Cultivar Registration Center for OsmanthusNanjing Forestry UniversityNanjingChina
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