生态学报最新文献

{"title":"Enhancing onion growth and yield through agroecological practices: Organic fertilization and intercropping","authors":"Yasmine Elouattassi, Mohamed Ferioun, Naïma El Ghachtouli, Khalid Derraz, Fouad Rachidi","doi":"10.1016/j.chnaes.2023.09.004","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.09.004","url":null,"abstract":"The harmonious integration of two agroecological methods, namely intercropping and organic fertilization, illustrates a sustainable approach that not only boosts crop productivity but also minimizes the environmental impact, demonstrating a commitment to both higher yields and responsible environmental stewardship. This research aims to explore the effects of organic fertilization on onions intercropped with pepper, fennel, and carrots within an agroecological context. The study was conducted over two seasons using a randomized complete block design with 12 treatments. Notably, organic fertilization yielded results similar to mineral fertilization (NPK). Among intercropping combinations, onion-carrot displayed the highest yield and growth characteristics. Onion-pepper intercropping didn't significantly impact onion growth, while onion-fennel intercropping negatively affected agronomic parameters. Carrot intercropping led to increased plant height, with inorganic fertilization demonstrating stronger effects than organic fertilization. NPK fertilizer notably enhanced stem diameter, particularly in onion-carrot intercropping. Intercropping, especially with NPK, positively influenced the number of leaves per plant. NPK fertilizer excelled in enhancing plant fresh weight, with onion-pepper and onion-carrot intercropping enhancing second-season yields. NPK fertilizer also stood out in plant dry weight, and onion-carrot intercropping excelled in bulb weight. Yield was significantly impacted by intercropping and fertilization, with NPK significantly enhancing yield and onion-carrot intercropping demonstrating promising results. Principal component analysis revealed that onion-carrot intercropping with organic fertilizer nearly matched chemical NPK yield levels. The study provides valuable insights into optimizing onion cultivation and recommends adopting onion-carrot intercropping in the Fes-Meknes region. Overall, this research advances understanding of the intricate interplay between organic fertilization and intercropping, offering strategies for improved yield and sustainability in agroecological systems.","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135484439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate change impacts on high altitude wildlife distribution: Predicting range shifts for four ungulates in Changthang, eastern Ladakh","authors":"Anchal Bhasin, Sunetro Ghosal, Pankaj Raina, Upamanyu Hore","doi":"10.1016/j.chnaes.2023.09.005","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.09.005","url":null,"abstract":"Climate change has a significant impact on species habitat and its distribution. Understanding and predicting range shifts and changing habitat use patterns in the context of climate change is important for management and conservation. Changthang region in eastern Ladakh is the western extension of the Tibetan plateau and is home to many ungulates. In this study, we used ensemble modelling using an ensemble modelling approach to estimate the current and future distribution of four ungulates namely Bluesheep, Tibetan gazelle, Tibetan argali and Kiang in Changthang region. We used the global circulation model (GCM) from WorldClim produced by Community Climatic System Model Version 4 to predict possible future changes with 24 environmental and topographic variables for two time periods (2050 and 2070). The results suggest that these ungulates may lose 57% to 61% of their current range, depending on the algorithm used and dispersal scenarios with a northward shift in their ranges. The maximum predicted range loss is for the Tibetan gazelle with an average of 90% loss, which might make it locally endangered with a prediction that only 9.5% of their present habitat might be suitable for them in 2070 in the context of climate change. An estimated 100 individuals of Tibetan gazelles are known to be in Ladakh with a patchy distribution in the southern part of the study area. The Tibetan gazelle in Ladakh requires urgent conservation efforts to enable it to adapt to future climate change scenarios in the region. We recommend restoration and conservation of grassland ecosystems that were historically and currently occupied by ungulates with additional attention given to potential suitable habitats outside protected areas by regulation of human activities.","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134995095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of processing methods on the proximate composition and microbial loads in Senilia senilis (Linnaeus, 1758) in mangrove swamps of Iko estuary, southeast, Nigeria","authors":"Imefon Udo, Dora Udoh, Imekan Isaac Akpan","doi":"10.1016/j.chnaes.2023.08.006","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.08.006","url":null,"abstract":"","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75480023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Appraisal of river sediments in southwestern Nigeria with a special focus on trace metals: Occurrence, seasonal variation, sources, and health risks","authors":"I. Ololade, A. Apata, N. A. Oladoja, B. A. Alabi, O. O. Ololade","doi":"10.1016/j.chnaes.2023.08.004","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.08.004","url":null,"abstract":"","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86230293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors affecting the tree and soil carbon stock in Shorea robusta Gaertn. forests along the elevational gradient in Eastern Nepal","authors":"Sujan Chaudhary, Biva Aryal","doi":"10.1016/j.chnaes.2023.09.001","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.09.001","url":null,"abstract":"","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135249027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating Sentinel 2A data for selecting the best methods in observation of biological pigments in coastal water","authors":"Muhammad A. El-Alfy, Ahmed M. Alzeny, Wael S. El-Tohamy, Imtiyaz Qayoom, Hazem T. Abd El-Hamid","doi":"10.1016/j.chnaes.2023.09.003","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.09.003","url":null,"abstract":"Coastal waters serve as critical ecosystems, supporting diverse marine life and offering invaluable resources to human communities. Understanding the distribution and dynamics of biological pigments, such as chlorophyll and phytoplankton, is essential for assessing the health and productivity of these ecosystems. Remote sensing technology has revolutionized our ability to monitor these pigments, providing a synoptic view of coastal waters. Sentinel-2A, a European Space Agency satellite, offers high-resolution multispectral data, making it a valuable resource for coastal studies. This paper presents a comprehensive analysis of Sentinel-2A data integration techniques for the observation of biological pigments in coastal waters along the coasts of Mediterranean Sea (Abu-Qir Area) from seven different sampling sites for the presence of different chlorophyll forms. Water samples were collected and physico-chemical characteristics like dissolved oxygen, pH, conductivity and chlorophyll were measured. In chlorophyll estimation, different forms of were calculated viz. chl a, b, c and carotenoids using different methodologies. Images from the Sentinel Multispectral Imager (MSI) sensor were taken on the same sample date. The phyto-planktonic forms, carotenoids, and their ratios in the sampling sites were also determined analytically. With the integration of satellite images (Sentinel 2A), results indicated types of chlorophyll, carotenoids, and ratios' distributions in the Abu-Qir Area of the Mediterranean Sea, Egypt. Our results demonstrate that the kind of species, illumination levels, and nutrient concentrations may all affect how much chlorophyll is absorbed by phytoplankton. Additionally, the band ratios of the different pigment types were found to be connected, such as b3/b8, or the same band might interact with other bands like b5, b4, b6, and b7, or b8a. Additionally, it was noticed that the green band and near infrared bands were useful for detecting pigments integrated with sampling datasets.","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135347901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rhizosphere bacteriome of Allium cepa after the application of chemical and endophyte-based fertilizer","authors":"Rumella Simarmata, T. Widowati, Sylvia Jrl, Rahayu Fwp, Margaretta Christita, Yeni Khairina, Eva Erdayani, F. H. Khumairah","doi":"10.1016/j.chnaes.2023.08.009","DOIUrl":"https://doi.org/10.1016/j.chnaes.2023.08.009","url":null,"abstract":"","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82521352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phytochemistry and therapeutic potential of Berberis lycium Royle; an endangered species of Himalayan region","authors":"Nahila Anjum,&nbsp;Qamer Ridwan,&nbsp;Fareeda Akhter,&nbsp;Mohd Hanief","doi":"10.1016/j.chnaes.2022.09.005","DOIUrl":"https://doi.org/10.1016/j.chnaes.2022.09.005","url":null,"abstract":"<div><p><em>Berberis lycium</em><span> Royle a member of Berberidaceae<span> family is an evergreen shrub native to the Himalayan region, particularly to Nepal. Several phytochemicals<span><span> including alkaloids, saponins, </span>tannins, vitamins, proteins, carbohydrates, lipids, berberine, berbamine, and sindamine have been extracted from various parts of the plant. The plant has also been shown to contain minerals such as calcium, copper, sodium, manganese, iron, sulphur, zinc, potassium, lead, and phosphorus. Owing to the presence of such biologically active chemicals, the extracts of the plant show several pharmacological activities like hyperlipidemic, hypoglycemic, hepatoprotective, anti-carcinogenic, and antipyretic. Moreover, the plant is being traditionally used to treat diarrhoea, intestinal colic, jaundice, piles, internal wounds, ophthalmia, rheumatism, and diabetes. Because of its important therapeutic characteristics, the plant is under risk of over-exploitation and other forms of anthropogenic pressure. In light of several recent findings and the prospects for future study, this review presents an inclusive account of its phytochemical constituents, biological activity, traditional use and conservation and management concerns.</span></span></span></p></div>","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49713074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal changes in tree community structure and carbon stocks in a human-impacted tropical dry evergreen forest, South India","authors":"Ashaq Ahmad Dar ,&nbsp;Kanda Naveen Babu ,&nbsp;K. Dilshad ,&nbsp;Snigdha Nath ,&nbsp;Narayanaswamy Parthasarathy","doi":"10.1016/j.chnaes.2022.09.002","DOIUrl":"https://doi.org/10.1016/j.chnaes.2022.09.002","url":null,"abstract":"<div><p><span>Long-term studies in forest ecosystems are crucial to interpret the dynamics and are essential for conservation and management. However, characterizing long-term dynamics in relation to disturbance across dry tropics is often constrained by a dearth of data particularly from Indian tropics. In this context, a one-hectare permanent plot established in 2001 was revisited in 2011 and further re-censused in 2020 to ascertain species composition, stand structure and carbon stock dynamics of tree community over a 19-year period (2001−2020). Although species richness remained more or less unaffected, tree species composition did vary with the addition and loss of five and 10 species over this period. Species-level mortality rates overshadow the annual recruitment rate resulting in a net decrease in structural components. The results revealed that tree density decreased profoundly to 583 individuals ha</span>⁻¹<span> in 2020, roughly 46% of the initial inventory. Similarly, basal area is reduced by 40% (from 58.27 m</span>² ha⁻¹ to 34.91 m² ha⁻¹), highlighting the impact of increased site disturbance over 19 years. The distribution of individuals and basal area to various diameter classes displayed a reverse <em>J-</em>shaped trend in both the inventories suggesting that all the size classes suffered equally over the years. The total carbon stock was as high as 416.01 Mg ha⁻¹ in the initial inventory and reduced to 250.70 Mg ha⁻¹ in the present re-census. Relative carbon stock calculations revealed that <span><em>Ficus benghalensis</em></span> (−46.05 Mg ha⁻¹), <span><em>Drypetes</em><em> sepiaria</em></span> (−22.68 Mg ha⁻¹) and <span><em>Pterospermum</em><em> canescens</em></span> (−14.98 Mg ha⁻¹) represented 64.84% of total carbon stock loss over the period. Among the 29 resourceful species, <em>Memecylon umbellatum</em>, <em>Drypetes sepiaria</em> and <span><em>Glycosmis</em><span><em> </em><em>mauritiana</em></span></span> represented the highly targeted species with varied dietary and medicinal importance. These findings attest the impact of anthropogenic disturbances on species composition and carbon stock potential of the present site, which underline the need for such long-term monitoring efforts useful to forest management and conservation.</p></div>","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49713075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Habitat suitability mapping of the Indian giant flying squirrel (Petaurista philippensis Elliot, 1839) in India with ensemble modeling","authors":"Vijay Kumar Koli ,&nbsp;Ashish Kumar Jangid ,&nbsp;Chandra Prakash Singh","doi":"10.1016/j.chnaes.2022.08.001","DOIUrl":"https://doi.org/10.1016/j.chnaes.2022.08.001","url":null,"abstract":"<div><p><span>Flying squirrels are one of the least studied mammalian taxa in South Asia as well as in India owing to their nocturnal, arboreal and cryptic nature. We applied ensemble species distribution modeling using BIOMOD2 (ver 1.0) R-package to predict the suitable habitat of the Indian giant flying squirrel (</span><em>Petaurista philippensis</em><span><span>, Elliot 1839) in Indian biogeographic regions and states, and to identify the physical variables that define its fundamental niche. A subset of least correlated variables from bioclimatic (mean diurnal temperature range, temperature isothermality, precipitation of wettest month, precipitation of driest month and precipitation of warmest quarter, and precipitation of coldest quarter), topographic (elevation), water-related (distance to major water streams), and vegetation-related (NDVI, and vegetation height) data sets were used in the modeling. The accuracy of the final ensemble habitat suitability model was characterized by the receiver operating characteristic curve (ROC) and true skill statistic (TSS). In India, a total of highly suitable habitat for the species was estimated to be 66,743 sq. km, varying between states and biogeographic regions. Final model revealed that predictive suitable habitat of the species was limited primarily to the southern peninsula, including the Western Ghats, the Deccan peninsula, and the semi-arid region, and to a lesser extent, the coastal areas of the Kerala state. At the state level, majority of suitable habitat for the species estimated in Kerala followed by Karnataka, Tamil Nadu, Gujarat, Maharashtra, Rajasthan, and Madhya Pradesh. </span>Climatic factors<span>, particularly temperature and precipitation, have been identified as major determinants of Indian giant flying squirrel's potential habitat. We suggest that several new areas in the modeling that showed suitable habitat for the species necessitate immediate attention to validate species occurrence through field work<span>. Extensive further studies on the species could also provide a detailed insight into the species' dispersion, colonization and the effect of future climate change in the Indian subcontinent.</span></span></span></p></div>","PeriodicalId":7048,"journal":{"name":"Acta Ecologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49713167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}