Polish Journal of Ecology最新文献_第5页

Seed Bank and Vegetation in a Closed Depression in Agricultural Landscape: Relation to Moisture Conditions and Soil Properties 农业景观封闭洼地种子库与植被:与水分条件和土壤性质的关系

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-12-01 DOI: 10.3161/15052249PJE2020.68.3.002

M. Franczak, Łukasz Franczak

{"title":"Seed Bank and Vegetation in a Closed Depression in Agricultural Landscape: Relation to Moisture Conditions and Soil Properties","authors":"M. Franczak, Łukasz Franczak","doi":"10.3161/15052249PJE2020.68.3.002","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.3.002","url":null,"abstract":"ABSTRACT The aim of the study was to estimate the effect of habitat factors such as moisture conditions and some physicochemical soil characteristics on the structure of the vegetation and the soil seed bank, and to compare species composition of the vegetation cover and the seed bank along the soil moisture and fertility gradients in closed depression in agricultural landscape. Based on the averaged results of the extent and time of stagnation of the water, along the transect four habitat moisture zones were distinguished (dry, periodically moist, moist, and wet). In eighteen study plots we analysed flora, soil seed bank, and contents of Ca, Mg, K, Mn, Fe and pH of the soil. The analysed closed depression is characterised by high variability in moisture conditions and in the physical and chemical properties of the soil. The most important factors affecting the diversity of the vegetation cover and seed bank were the duration of water stagnation and the content of Fe and Mn in the soil. The lowest plant species richness and the smallest seed resources were determined for the wet zone of the depression. An increase in the habitat moisture level was accompanied by a decline in the floristic similarity between the vegetation cover and the seed bank.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"195 - 210"},"PeriodicalIF":0.5,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47381147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Winter Diets of Long-Eared Owl (Asio otus) in Thrace, Turkey 土耳其色雷斯长耳猫头鹰的冬季饮食

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-12-01 DOI: 10.3161/15052249PJE2020.68.3.005

V. Beskardes, Ergün Bacak, A. Keten, Zeynel Arslangundogdu

{"title":"Winter Diets of Long-Eared Owl (Asio otus) in Thrace, Turkey","authors":"V. Beskardes, Ergün Bacak, A. Keten, Zeynel Arslangundogdu","doi":"10.3161/15052249PJE2020.68.3.005","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.3.005","url":null,"abstract":"ABSTRACT Long-eared owls (Asio otus) are common avian predators in Turkey. Their diet consists primarily of small mammals, but they also feed on bats, birds, amphibians, reptiles, insects, and fish. Limited research has been conducted on long-eared owl diets and pellet characteristics in Turkey, yet this knowledge would improve our understanding of their ecological role in the environment. We investigated prey items in pellets at winter sites of Asio otus in Edirne, Kirklareli, Tekirdag, and Istanbul. We collected 2143 pellets from winter sites and counted 3458 prey items. We identified 30 taxa including 16 mammals, 12 birds and 2 insects. Asio otus primarily consumed small mammal species (97.9%) which consisted mainly of rodents (89.6%, including Cricetidae 45.95%, Muridae 43.7%), Eulipotyphla (1.2%), and unidentified mammals (7.1%). A small proportion of birds (1.9%) and insects (0.2%) also were consumed. Asio otus inhabited small coniferous woodlands at edge of farmlands during winter, but their diet varied with location. Muridae were primarily consumed in Istanbul and Tekirdag, whereas Cricetidae were mostly consumed in Kırklareli and Edirne. Our study shows that Asio otus feeding habits shift depending on prey abundance and that they are not specialists for Microtus species only.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"242 - 250"},"PeriodicalIF":0.5,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46881293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in the Structure of Avian Community along a Moisture Gradient in an Urbanized Tropical Riparian Forest 城市化热带河岸林鸟类群落结构的水分梯度变化

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-12-01 DOI: 10.3161/15052249PJE2020.68.3.006

G. Kopij

{"title":"Changes in the Structure of Avian Community along a Moisture Gradient in an Urbanized Tropical Riparian Forest","authors":"G. Kopij","doi":"10.3161/15052249PJE2020.68.3.006","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.3.006","url":null,"abstract":"ABSTRACT In larger river valleys of southern Africa, riparian forests are among the main vegetation types. The forests are regarded as ones of the most diverse and distinct terrestrial habitats on earth. They also play a crucial role in wildlife conservation as corridors and refugia for wildlife. It is hypothesized that the closer to the river bank, the higher the species diversity, while population densities may increase with the increase of the distance from the river bank. In 2014, quantitative studies (by means of the mapping method) on avian community breeding in such forest on Zambezi River in Katima Mulilo were undertaken to measure this gradient. Four plots were designed along an increasing distance from the river bank in this forest. In terms of the number of species, there was a significant gradual decrease with the increasing distance from the bank (from 91 to 54 species). The number of breeding pairs per 100 ha increased with the moisture gradient (from 222 to 677). Shannon's (H') and Simpson's (D) indices were higher in the two plots closer to the bank river (H'= 3.44–3.85; D = 0.97–0.99), than in the two remaining plots (H' = 3.13–3.15; D = 0.92–0.93). Also the Pielou's Evenness Index was higher in two plots closer to the bank (J' = 0.84–0.85 vs. 0.77–0.78). The proportion of granivores in the avian community declined along the moisture gradient, while that of insectivores and frugivores – increased. These gradual changes can be linked to a parallel gradual changes of the amount of fruits and invertebrates.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"251 - 262"},"PeriodicalIF":0.5,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46874426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Actinobacterial Communities of Chosen Extreme Habitats in China 中国极端生境的放线菌群落

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-12-01 DOI: 10.3161/15052249PJE2020.68.3.001

Peng Jia, Miao Li, Haiyan Feng, Mutian Ma, J. Gai, Zhongfang Yang

{"title":"Actinobacterial Communities of Chosen Extreme Habitats in China","authors":"Peng Jia, Miao Li, Haiyan Feng, Mutian Ma, J. Gai, Zhongfang Yang","doi":"10.3161/15052249PJE2020.68.3.001","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.3.001","url":null,"abstract":"ABSTRACT Actinobacteria living in frozen soils which potentially could be producers of valuable and biologically active metabolites, remain still largely unexplored. Therefore, the diversity of culturable actinobacteria in the six frozen soil samples collected from the high-latitude and the high-altitude regions in China was investigated by using the culture-dependent method and 16S rRNA gene analysis. A total of 184 culturable actinobacterial isolates (morphotypes) were obtained. The abundance of culturable actinobacteria was 6.20 × 103–3.49 × 105 colony forming units (CFU) per gram of soil (dry weight). The actinobacteria isolated from the high-latitude region in China belong to five genera: Streptacidiphilus, Kitasatospora, Streptomyces, Arthrobacter, and Rhodococcus. The strains belonging to Arthrobacter were dominant, the 19 strains were closely related to Arthrobacter globiformis in terms of evolutionary distance. The actinobacterial isolates from the high-altitude region, from 2, 813 m to 4, 775 m in elevation, in China could be grouped into six genera (Arthrobacter, Microbacterium, Streptomyces, Rhodococcus, Nocardia, and Nocardiopsis), with dominant Streptomyces and Arthrobacter strains. The 4 strains were closely related to Rhodococcus fascians and one strain was closely with Microbacterium hydrocarbonoxydans in terms of evolutionary distance. Three genera of Arthrobacter, Streptomyces, and Rhodococcus were found in both areas. Our research provides new insight into the characteristics of the distribution of actinobacteria associated with frozen soils, which help us gain a better understanding of the potential of the cryogenic environments – the potential source of actinobacterial antibiotics.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"181 - 194"},"PeriodicalIF":0.5,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43567233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Low-Intensity Cutting Leads to Similar Forest Structure and Tree Diversity as in Protected Stands 低强度砍伐导致与保护林相似的森林结构和树木多样性

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-09-22 DOI: 10.3161/15052249PJE2020.68.2.004

D. Dobrowolska, Olga Orman, R. M. Tiwari

{"title":"Low-Intensity Cutting Leads to Similar Forest Structure and Tree Diversity as in Protected Stands","authors":"D. Dobrowolska, Olga Orman, R. M. Tiwari","doi":"10.3161/15052249PJE2020.68.2.004","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.2.004","url":null,"abstract":"ABSTRACT Forest structure in Europe has been shaped by forest management which may vary from intensive clearcuttings to single-tree selection cuttings. Most investigations on silver fir forests have been carried out in the mountains. Forests in lowlands have been less studied, although many of them are of natural origin. We investigated and assessed potential stand structural differences between managed and partially protected mixed silver fir stands. We also assessed the impact of silvicultural activities that led to the development of current stand structures of mixed Abies alba stands. The study was conducted in Janów Forests in south-eastern Poland. We randomly established 40 circular nested plots in three managed and three partially protected stands. Although both managed and partially protected stands differed in the intensity of management and the type of selection cuttings, we found little difference in the composition and stand structure. Regardless of management intensity all stands were characterized by diversified natural regeneration, where the main tree species, especially in the phase of seedlings, was silver fir. The basal area of standing dead trees was higher for the protected than managed stands, but the differences were not significant, whereas the mean volume of dead standing trees was significantly higher in the reserve. Both in managed and protected stands, silver fir benefited from the management measures mimicking natural processes. Our results suggest that low intensity forest management for silver fir dominated forests will be crucial for conserving these forests and their unique structure in the region.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"145 - 158"},"PeriodicalIF":0.5,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46993463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Responses of Physiological Characteristics of Annual C4 Herbs to Precipitation and Wind Changes in Semi-Arid Sandy Grassland, Northern China 北方半干旱沙质草原一年生C4草本植物生理特性对降水和风变化的响应

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-09-22 DOI: 10.3161/15052249PJE2020.68.2.002

Shanshan Sun, Xinping Liu, Yuhui He, P. Lv, .. Chelmeg, Lamei Zhang, Shuilian Wei

{"title":"Responses of Physiological Characteristics of Annual C4 Herbs to Precipitation and Wind Changes in Semi-Arid Sandy Grassland, Northern China","authors":"Shanshan Sun, Xinping Liu, Yuhui He, P. Lv, .. Chelmeg, Lamei Zhang, Shuilian Wei","doi":"10.3161/15052249PJE2020.68.2.002","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.2.002","url":null,"abstract":"ABSTRACT The effects of changing precipitation and wind regimes on plant physiology are increasingly drawing attention of eco-physiologists. In the manipulative experiment we studied the physiological mechanisms of annual C4 herbs in the semi-arid sandy land to understand the functional significance of their traits and responses to the changing environment, grass Setaria viridis, characterized by the moderate stem water content and low leaf water content, more effectively absorbed light energy and utilized water resources than two dominant dicot plants, Salsola collina and Bassia dasyphylla. Precipitation increase and wind reduction promoted photosynthesis of the three C4 herbaceous plants, and their photosynthetic rates were higher in the end of July than that in August. Precipitation increase and the 20% reduction in wind velocity could also enhance their stomatal conductance and transpiration rate. The transpiration rate was consistent with the change in stomatal conductance, exhibiting highly positive correlation. The interactive effects of precipitation increase and wind velocity reduction made great changes in photosynthetic rate of the S. collina, lifted the photosynthetic rate and water use efficiency of the S. viridis. Our results suggest that the C4 herbs have shown some degree of stress resistance, and they are able to acclimate better to frangible environment of semi-arid sandy land. Furthermore, the changing environments heighten photosynthesis of the C4 herbs, which is pretty important to strength the arid plant stress resistance, then contributed to the ecosystem community production and dry matter accumulation.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"121 - 131"},"PeriodicalIF":0.5,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47813413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Fractal Features of Soil Particle Size Distributions and Their Implications for Indicating Enclosure Management in a Semiarid Grassland Ecosystem 半干旱草地生态系统土壤粒度分布的分形特征及其对围封管理的指示意义

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-09-22 DOI: 10.3161/15052249PJE2020.68.2.003

Wei Chen, Haitao Chang, Ren-tao Liu

{"title":"Fractal Features of Soil Particle Size Distributions and Their Implications for Indicating Enclosure Management in a Semiarid Grassland Ecosystem","authors":"Wei Chen, Haitao Chang, Ren-tao Liu","doi":"10.3161/15052249PJE2020.68.2.003","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.2.003","url":null,"abstract":"ABSTRACT Soil particle size distribution (PSD) is becoming an increasingly useful tool for the objective description of soil structure and intrinsic links between soil and the environment. Here we examined the fractal features of PSD and its correlation with soil physiochemical properties in grasslands under grazing and protected from grazing (enclosure) animals, before and after plant growing periods in a semiarid grassland ecosystem, in northern China. Our results showed that sand content was significantly higher in grassland soils under grazing compared with the enclosure at both sampling times (May and September), whereas their silt and clay contents followed the reverse pattern. The fractal dimensions of PSD (Dm) under enclosure were significantly greater than those found under grazing. The soil clay, silt contents and Dm were positively correlated with soil total N, total C, soil pH, and moisture content. By contrast, the soil sand content declined with increasing total N, total C, pH, and moisture content of soil. The soil fractal dimension of PSD had a positive correlation with soil clay and silt content, whereas it had a negatively correlated with sand content. From these results, we conclude installing enclosures can promote soil clay, silt, and soil particles' fractal dimension, with the latter could be used as a quantitative indicator of soil fertility characteristics. But it is unnecessary to use the fractal dimension of PSD as an index to evaluate the effects of enclosure management on degraded grassland.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"132 - 144"},"PeriodicalIF":0.5,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47847980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Effects of Increased Precipitation and Nitrogen Deposition on Methane Uptake of Alpine Meadow in Qinghai-Tibet Plateau: in situ Experiments 青藏高原高寒草甸增雨增氮对甲烷吸收的影响：原位实验

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-09-22 DOI: 10.3161/15052249PJE2020.68.2.001

Xiaowei Guo, Licong Dai1, Fa-wei Zhang, Yikang Li, Li Lin, Qian Li, Qian Dawen, Bo Fan, Xun Ke, G. Cao, Hua-kun Zhou, Yangong Du

{"title":"Effects of Increased Precipitation and Nitrogen Deposition on Methane Uptake of Alpine Meadow in Qinghai-Tibet Plateau: in situ Experiments","authors":"Xiaowei Guo, Licong Dai1, Fa-wei Zhang, Yikang Li, Li Lin, Qian Li, Qian Dawen, Bo Fan, Xun Ke, G. Cao, Hua-kun Zhou, Yangong Du","doi":"10.3161/15052249PJE2020.68.2.001","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.2.001","url":null,"abstract":"ABSTRACT The methane (CH4) fluxes in grasslands are sensitive to changes in precipitation and soil nitrogen concentrations, which was poorly understood, especially on the Tibetan Plateau. Therefore, an experiment was conducted from May 2012 to October 2013, by using the static chamber technique and gas chromatography method. We set up five treatments: an increased 2 g m-2 NH4NO3 treatment (2gN); an increased 4 g m-2 NH4NO3 treatment (4gN); and treatment with precipitation increased by 20% (Pre), and added 2 g m-2 NH4NO3 and precipitation (20%) treatment (N+Pre), and a control treatment (CK). The five treatments showed decreasing CH4 uptake rates in the following order: CK (71.66 ± 6.6 µg m-2 h-1) > N+Pre (58.57 ± 3.7 µg m-2 h-1) > Pre (52.66 ± 2.3 µg m-2 h-1) > 2gN (47.63 ± 3.1 µg m-2 h-1) > 4gN (39.12 ± 3.3 µg m-2 h-1). The 2gN and 4gN treatment resulted in 33.5% and 45.4% lower CH4 uptake than the CK treatment, respectively. The path analysis indicated that the above-ground biomass and litter fall were the most important factor promoting and limiting the CH4 uptake rate of alpine meadow, respectively.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"109 - 120"},"PeriodicalIF":0.5,"publicationDate":"2020-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44130376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Enamel Thickness Differs between Field and Forest European Roe Deer Capreolus capreolus 野外和森林欧洲狍子牙釉质厚度的差异

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-05-19 DOI: 10.3161/15052249PJE2020.68.1.009

Jan Demesko, M. Kurek, Patrycja Podlaszczuk, J. Markowski

{"title":"Enamel Thickness Differs between Field and Forest European Roe Deer Capreolus capreolus","authors":"Jan Demesko, M. Kurek, Patrycja Podlaszczuk, J. Markowski","doi":"10.3161/15052249PJE2020.68.1.009","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.1.009","url":null,"abstract":"ABSTRACT Dental enamel is the hardest tissue of the mammalian body, consisting of 96–98% inorganic compound. As the dentition is functionally adapted to diet and feeding behaviour, relative differences in enamel thickness can reflect dietary adaptations. We hypothesize that differences in enamel thickness are related to adaptation for diet associated with habitat quality dwelling of European roe deer Capreolus capreolus. To test this hypothesis, 49 first permanent left lower molars were extracted from the mandible of roe deer (from Lithuania – 28 and Poland – 21 molars) inhabiting two type of habitats: field and forest. The linear thickness of total enamel (mean value of enamel thickness measured at three different points) was found to differ between the roe deer from the field and forest habitats, irrespective of age, with the animals of field ecotype tend to have thinner enamel (F(1,26) = 6.845, P = 0.025). This suggests that there is an adaptation in enamel thickness to various types of diet in the field and forest habitat. On the other hand, roe deer from the field habitat can be also more exposed to stress, due to the lower possibility to hide or are more vulnerable to potential threats. More frequent exposure to stress can significantly disrupt ameloblasts secretion and thus affect the thickness of the enamel.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"100 - 107"},"PeriodicalIF":0.5,"publicationDate":"2020-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70022411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenology of the Alien Invasive Plant Species Prosopis juliflora in Arid and Semi-Arid Areas in Response to Climate Variability and Some Perspectives for Its Control in Ethiopia 埃塞俄比亚干旱和半干旱地区外来入侵植物胡枝子对气候变化的响应及其防治前景

IF 0.5 4区环境科学与生态学

Polish Journal of Ecology Pub Date : 2020-05-19 DOI: 10.3161/15052249PJE2020.68.1.004

Wakshum Shiferaw, T. Bekele, S. Demissew, E. Aynekulu

{"title":"Phenology of the Alien Invasive Plant Species Prosopis juliflora in Arid and Semi-Arid Areas in Response to Climate Variability and Some Perspectives for Its Control in Ethiopia","authors":"Wakshum Shiferaw, T. Bekele, S. Demissew, E. Aynekulu","doi":"10.3161/15052249PJE2020.68.1.004","DOIUrl":"https://doi.org/10.3161/15052249PJE2020.68.1.004","url":null,"abstract":"ABSTRACT This study aims to (i) evaluate the phenology of Prosopis juliflora (Prosopis), (ii) investigate the effects of climate variability (temperature and precipitation) on the phenology of Prosopis, and (iii) assess the critical months of seed dispersal for the species management. Monthly data for phenology events: leafing, flowering, green and mature pods were collected from 8 stems of Prosopis trees at each of two localities in Ethiopia during 2016/2017. In Amibara district we found that relative abundances of green leaves, flowering, green pods, and mature pods were 91, 15, 9, and 2% in order. However, these were less than by 8, 53, 91, and 90%, respectively in Awash Fenatle district. The lowest proportions of mature and green pods were recorded in the dry season and the highest in the spring season. We recorded the highest and lowest relative abundances of flowering between November and December, and January and February, respectively. In this study, both temperature (F = 2.01, P = 0.04) and precipitation (F = 2.85, P = 0.01) had shown significant effects on the relative abundances of green leaves but insignificant effects on other phenology stages. Higher green leaf abundances were recorded during high rainfall, whereas lower abundances of leaves were recorded in high temperatures. But, the relative abundances of Prosopis leaves showed inconsistent with the variations of precipitation. Thus, awareness creation for stake holders about the phenology calendar of Prosopis should be given to abandon the invasiveness of the species towards the prime grazing lands in the region.","PeriodicalId":49683,"journal":{"name":"Polish Journal of Ecology","volume":"68 1","pages":"37 - 46"},"PeriodicalIF":0.5,"publicationDate":"2020-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45776884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2