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Tytuł:
Bayesian birds: concerning the paper of R. F. Green
Autorzy:
Kimmel, Marek
Powiązania:
https://bibliotekanauki.pl/articles/747375.pdf
Data publikacji:
1983
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
Ecology, Population dynamics
Opis:
Artykuł nie zawiera streszczenia
The article contains no abstract
Źródło:
Mathematica Applicanda; 1983, 11, 22
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Von Bertalanffys growth dynamics with strong Allee effect
Autorzy:
Rocha, J.
Aleixo, Sandra
Powiązania:
https://bibliotekanauki.pl/articles/729888.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
Von Bertalanffy's model
population dynamics
Allee effect
Opis:
Von Bertalanffy's model is one of the most popular differential equation used in order to study the increase in average length or weight of fish. However, this model does not include demographic Allee effect. This phenomenon is known in the fisheries literature as "depensation", which arises when populations decline rapidly at low densities. In this paper we develop and investigate new corrected von Bertalanffy's models with Allee effects. The generalization that we propose results from considering correction factors, one of rational type and the others of polynomial type, where two parameters are considered. The use of a parameter C > 0 leads the presented generalization, which yields some more flexible models with variable extinction rates. An Allee limit or unstable equilibrium $E^u$ is incorporated so that the models under study have strong Allee effect. We analyze and show the transition from the strong Allee effect to the inexistence of this effect, through by a "weakening" of the Allee effect, depending on the parameters C and $E^u$. Finally, we discuss the flexibility of corrected von Bertalanffy's sigmoid growth curves. So, the correspondents inflexion points are variable, i.e., the fish mass when the growth rate is maximum may be varied.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2012, 32, 1-2; 35-45
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DŁUGOTERMINOWE REGIONALNE KONSEKWENCJE MIGRACJI W EUROPIE - METODA OCENY I WYBRANE WYNIKI
LONG-TERM REGIONAL CONSEQUENCES OF MIGRATION IN EUROPE - ASSESSMENT METHOD AND SELECTED RESULTS
Autorzy:
Kupiszewski, Marek
Kupiszewska, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/579499.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MIGRATION
EUROPE
POPULATION
MODELLING
POPULATION AGING
LABOUR FORCE
POPULATION DYNAMICS
Opis:
The paper presents a method of assessment of the long-term impact of migration on the development of population and labour force in 287 regions of Europe in 31 countries. The first stage of the study was to prepare population projections in several variants. An important issue was to address the problem of the availability and quality of data on international migration. The measurement of the impact of migration on total population and labour force was conducted by comparing the percentage changes in population and labour force obtained in various simulations. The impact on the age structure was examined by analyzing demographic and labour force dependency ratios. A method of comparing the impact of various components of population change: natural change and different categories of migration flows (extra-European migration, international migration within Europe and internal migration) was proposed. In the second part of the paper, selected results of the simulations, showing potential long-term consequences of the observed migration flows, were presented. Special attention was paid to the regional differences in the consequences.
Źródło:
Studia Migracyjne - Przegląd Polonijny; 2012, 38, 2(144); 105-134
2081-4488
2544-4972
Pojawia się w:
Studia Migracyjne - Przegląd Polonijny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematics Serve to Orchestrate the Progression of Studies In Biological Sciences: Overview on Occasion of April, the Mathematics Awareness Month
Autorzy:
Khyade, Vitthalrao B.
Wanve, Hanumant V.
Powiązania:
https://bibliotekanauki.pl/articles/1177867.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biomathematics
Quantitative Genetics; Population Dynamics; Supercomplex Mechanisms
Opis:
The mathematics and biology are the interdisciplinary approaches in the field of scientific research. Both, mathematics and biology deserve a wide range of applications. Mathematical biology or biomathematics is the study of mathematics for biology. One can derive the quantitative genetics through consideration of infinitesimal effects at a large number of gene loci, together with the assumption of linkage equilibrium or quasi-linkage equilibrium. Ronald Fisher made the intensive work on fundamental advances in statistics (Example: Analysis of Variance). This achievement by Ronald Fisher was through his work on quantitative genetics. The phylogenetics is one more important branch of population genetics that led to the extensive development of Biological sciences through Mathematics. The Phylogenetics is the branch dealing with the reconstruction and analysis of phylogenetic (evolutionary) trees and network based on inherited characteristics. Assumptions on the “Constant Population Size” belongs to many “Population Genetics” models. The population dynamics is treating the “Variable Population Size” as absence of genetic variation. History of such type of work goes back to the 19th century. Even as far as 1798. In 1798, Thomas Malthus formulated the first principle of population dynamics. This principle later became popularize as the “Malthusian Growth Model”. Alfred J. Lotka, in 1910 proposed the model of autocatalytic chemical reactions. Vito Volterra tried his best to extend this work and titled as “Lotka - Volterra Predator-Prey Equations”. Basically, Vito Volterra was Mathematician. The mathematical epidemiology is the study of infectious disease affecting populations. Upto some extent, the “Population dynamics” use to overlaps mathematical epidemiology. The mathematics and Biology, both are serving a lot to orchestrate the progression of the global research.
Źródło:
World Scientific News; 2018, 98; 140-149
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Insights on Short-term Blooms of Planktonic Ciliates, Provided by an Easily Recognised Genus: Cyrtostrombidium
Autorzy:
Bulit, Celia
Macek, Miroslav
Montagnes, David J. S.
Powiązania:
https://bibliotekanauki.pl/articles/763531.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Bloom, conjugation, parasitism, patch, population dynamics, lagoon
Opis:
Planktonic ciliates occasionally form brief rapid increases in numbers (blooms) that can be trophically important. Although model simulations and mesocosm studies indicate that blooms occur over 10 to 20 days, field data are rarely suffi ciently detailed to reveal their occurrence and demise. Our data (collected over 57 weeks across a coastal lagoon) offer insights into the population dynamics of a single species, place these in the context of the entire ciliate assemblage, and provide guidance on what should continue to be examined. Specifically, to evaluate population dynamics we examine two species of Cyrtostrombidium, characterise temporal and spatial variation of their abundance, and relate these to abiotic phenomena and biological factors. This is also the first report of Cyrtostrombidium in a tropical coastal lagoon. Collectively our analysis reveals key aspects of the dynamics of this genus: 1) small-scale peaks in abundance are ~30 m in size and can persist for ~10–30 days, reaching a maximum of 100 cells ml–1; 2) these increases are driven by biotic factors (revealed through autocorrelation analysis); 3) long-term trends are driven by the shift between dry and rainy seasons and by the periods of isolation of lagoon from the sea (revealed through multiple regression analysis); 4) blooms may at times control primary production; 5) conjugation, an ecologically important event, may be associated with blooms (at times 9% of population was conjugating); and 6) dinoflagellate parasitism, poorly described in oligotrichs, is potentially important in population demise. These results both reflect on how ciliates may behave in short-term events and should encourage the continued need for detailed observations of field samples at a high taxonomic resolution.
Źródło:
Acta Protozoologica; 2013, 52, 1
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania nad liczebnością wyspowej populacji nornicy rudej (Clethrionomys glareolus, Schreber 1780) i ich znaczenie dla teorii
The population dynamics of bank voles (Clethrionomys glareolus, Schreber 1780) and its significance for theory
Autorzy:
Bujalska, Gabriela
Powiązania:
https://bibliotekanauki.pl/articles/1817871.pdf
Data publikacji:
2003-12-31
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
Clethrionomys glareolus
nornica ruda
liczebność populacji
population dynamics
Opis:
This is an overview of long-term studies (1966-1997) on the bank vole - Clethrionomys glareolus (Photo 1). population inhabiting Crabapple Island in NE Poland. The history of recognition of causes affecting population dynamics as well as variable interpretation of the facts comprising the theory of functional relations in that population is described. Meandering ideas can be illustrated by Fig. 1. The population dynamics (each year data on population numbers in April, July, and October are shown) is presented in Fig. 2. The evidence is provided that the population exhibits a weak 3.8 year and a much more clear 9.4-year cycle (Fig. 3). The number of sexually mature females, that is those able to reproduce, has been relatively stable and independent of the population size or of the immature female numbers (Fig. 4). The reason is the territoriality of mature females: the female territory (part of the female home range) cannot be visited by other mature females. A tendency toward territoriality was also noted among mature males, which numbers were limited by the availability of mature females, and therefore also relatively stable. Such a social system can be considered gynocentric.
Źródło:
Studia Ecologiae et Bioethicae; 2003, 1, 1; 429-444
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Field and Laboratory Studies of the Earthworm Dendrobaena Alpina
Autorzy:
Kostecka, J.
Butt, K. R.
Powiązania:
https://bibliotekanauki.pl/articles/124743.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
earthworms
Dendrobaena alpina
field study
laboratory culture
population dynamics
Opis:
Distribution of Dendrobaena alpina covers the mountainous region of central Europe, where it has a high dominance and frequency index. This work describes data from field studies conducted over two annual cycles in the Bieszczady National Park (BNP), Poland, in different types of beech forest. Densities of this species ranged from 47–231 g·m -2 with associated biomasses of 19–90 g·m -2. Most (66%) were recovered from less than 0.1 m soil depth with a further 28% from up to 0.2 m. Further, the animals were collected alive from Lutowiska, close to the BNP to obtain baseline data on the life history of D. alpina. Mature individuals were kept in isolation and cocoon production monitored on a 2 monthly basis. Immature individuals were kept until they reached maturity, when they were paired, with combined output of cocoons regularly monitored. Cocoons were collected, had their masses determined and were incubated. Hatchability was recorded, as was estimated duration of incubation and growth to maturity. Field-collected adults had a mean mass of 1.4 g and at 15 ºC, these produced an average of 1.83 cocoons·worm -1·month -1. Zero cocoons were produced by further specimens, collected as immature, grown to maturity and maintained in isolation. Recently-matured, paired D. alpina produced an average of 1.65 cocoons·worm -1·month -3. Cocoons had a mean mass of 19 mg. At 15 ºC, cocoons produced by recently matured adults hatched after 80 days (82% viable), but after 2 months the majority of cocoons failed to hatch. Hatchling growth from an average of 18 mg to maturity required 7–11 months in the given substrate.
Źródło:
Journal of Ecological Engineering; 2015, 16, 5; 213-217
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the aquatic moss Sphagnum denticulatum Brid. population abundance in a softwater lake over a period of three years
Autorzy:
Szmeja, J
Powiązania:
https://bibliotekanauki.pl/articles/57078.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
aquatic moss
population dynamics
Sphagnum denticulatum
population abundance
soft water lake
lake
phenology
Opis:
Changes in population abundance of submerged Sphagnum denticulatum Brid. were studied in an acidic and oligotrophic lake in NW Poland over three years. Individuals were counted in a moss carpet at a depth of 2.5 m on 4 experimental plots, 1 × 1 m each, every 30 days for 36 months using the SCUBA method. PAR intensity was seasonally variable (in winter higher than in summer). Changes in water pH, conductivity, HCO3- concentration, hydration and sediment pH were statistically insignificant (p > 0.05). In the summer of the second study year the moss carpet disappeared almost completely due to a massive bloom of filamentous green algae. Periods of growth, regression and regeneration were observed in the population. The stabilisation of population size took 24 months and followed the pattern: slight fluctuations, then rapid growth and repetition of slight fluctuations. The first stage lasted nine, the second four and the third nine months. These stages took place irrespective of seasons, temperature or PAR intensity. Each rapid increase in abundance lasted about 30 days, at PAR intensity >20% and water temperature ranging from 11 to 16oC (in winter, spring or autumn). The regression stage brought about by the algal bloom started in the second year (in summer) and lasted six months (until the end of January in the third year). The population regeneration began in winter (in February, water temperature 3.0oC, PAR about 20%, ice cover 0.15 m) and finished with the end of spring. The population of S. denticulatum shows a repetitive pattern of abundance variations, which is seriously disturbed in summer, especially after a warm spring, by a massive bloom of filamentous green algae.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 2; 167-173
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamics of a two sex population with gestation period
Autorzy:
Busoni, Giorgio
Palczewski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1208215.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
differential equations with delay
stationary solutions
population dynamics
mathematical modelling
Opis:
We investigate a mathematical model of population dynamics for a population of two sexes (male and female) in which new individuals are conceived in a process of mating between individuals of opposed sexes and their appearance is postponed by a period of gestation. The model is a system of two partial differential equations with delay which are additionally coupled by mathematically complicated boundary conditions. We show that this model has a global solution. We also analyze stationary ('permanent') solutions and show that such solutions exist if the model parameters satisfy two nonlinear relations.
Źródło:
Applicationes Mathematicae; 2000, 27, 1; 21-34
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Labor force dynamics and economic performance: A case of Nigeria, India, and China
Autorzy:
Omolola Oyedepo, Elizabeth
Powiązania:
https://bibliotekanauki.pl/articles/32443882.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
labor force
economic performance
demographic change
population dynamics
ARDL model
Opis:
Aim/purpose – This study investigated the nexus between labor force dynamics and economic performance in Nigeria, India, and China. Design/methodology/approach – The study used annual time series data spanning from 1991 to 2021 obtained from World Development Indicators (WDI). After the unit root stationarity test, the Autoregressive Distributed Lag Model (ARDL) was used for the analysis. Findings – Findings from the study support a positive short-run relationship between labor force participation and economic growth in all three countries. However, in China, population growth impacts the economy positively in the long run, while life expectancy at birth negatively impacts the economy in the short run. This is because China’s population is aging. In India, employment in the industrial and service sectors positively impacts the economy in the long run. In the short run, life expectancy at birth influences the economy negatively. Furthermore, in Nigeria, the industrial and service sector employment impact the economy negatively in the long run, though there are positive effects in the short run. Research implications – The Indian government needs policy reforms in the areas of education and health to take advantage of the potential of its youthful population. The Nigerian government requires implementing a wide range of education, investment, and employment-generating policies to foster tangible economic growth. These reforms could help both India and Nigeria take advantage of the potential for demographic change. The Chinese government, already having policy reforms in place, is geared towards improved fertility and population growth for economic growth in the near future. These policies, coupled with the study’s findings, could provide a more comprehensive understanding of the implications of demographic change on economic performance. Originality/value contribution – This analysis explored and compared the demographic potentials of two young countries (India and Nigeria) and an aging, wealthy economy (China) from the working class. Policy lessons for the attainment of demographic dividends are borrowed from China.
Źródło:
Journal of Economics and Management; 2024, 46; 143-170
1732-1948
Pojawia się w:
Journal of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Storage of hydrogenous gas in geological formations: self-organisation methane gas
Autorzy:
Toleukhanov, A.
Kaltayev, A.
Panfilov, M.
Powiązania:
https://bibliotekanauki.pl/articles/298661.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
porous media
hydrogen
reactive transport
bacteria
neuston
chemotaxis
population dynamics
oscillations
Opis:
In the case of producing large amounts of hydrogenous gas, currently there are no problems related to basic techniques of hydrogen production and distribution, but the main technological problem will consists of storing it in order to regulate the difference between permanent or increasing gas production and seasonally modulated gas consumption. The most efficient and most inexpensive method of storing large amounts of hydrogen is to inject them in geological formations like aquifers, depleted gas reservoirs, or salt caverns (Zittel and Wurster 1996). The cost is of order $ 3.5 per 1 GJ (Taylor et al. 1986). Several underground storages of hydrogen (USH) or town gas exist in the word, as for instance, Teeside in the UK, in Texas, in Russia, Kiel in Germany, Lobodice in Czechoslovakia, Beynes - an ex-storage in France. During several tens of years the storage of hydrogen was considered as something deja-vu, to be similar to that of natural gas, which is amplified by the chemical inactivity of hydrogen and its very low solvability in groundwater [Bulatov 1979; Carden and Paterson 1979; Lindblom 1985; Paterson 1983]. Nevertheless, quite unusual behaviour of UHS was discovered by in situ monitoring of the gas composition extracted during the cycle "production" which followed the cycle "injection". These observations (Smigai et al. 1990; Buzek et al. 1994) revealed high variations of gas composition in time and space. In particular, a significant reduction in the H2 and CO2 contents and a simultaneous increase in CH4 contents were observed in the Lobodice town gas storage facility (Smigai et al. 1990). Similar phenomena were recorded in Beynes. After several months of injection and storage, at the beginning of the cycle "production" the twofold increase of the methane contents in the reservoir gas and the twofold reduction of the CO2 CO contents was observed. The contents of hydrogen decreased by 1.4. The explanation to these observations has been done in (Buzek et al. 1994) in terms of the in situ methane generators by methanogenic bacteria which catalyse the reaction between hydrogen and CO2/CO, by producing methane and water. Further observations have revealed even more unusual effects within the storage facility, such as creating a spatial alternation of the areas saturated preferably by hydrogen or methane. This proved an in situ natural separation of chemical components in space. Thus, we are dealing with a natural reactor which partially destroys CO2 and H2 and doubles the mass of methane. It is clear that the problem is important for industry as it concerns both the energy sector and ecology. The resulting economical efficiency of such a process can be estimated only after the physical and mathematical modeling of all possible scenarios of the reservoir behaviour. The development of such a model represents the main objective of this paper.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 241-245
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The dynamics of the population of a steppe perennial Senecio macrophyllus M.BIEB. during xerothermic grassland overgrowing
Autorzy:
Czarnecka, B
Powiązania:
https://bibliotekanauki.pl/articles/56894.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
population dynamics
steppe plant
Senecio macrophyllus
xerothermic grassland
life-stage structure
Opis:
The study aimed to determine the long-term changes of the Senecio macrophyllus M.BIEB. population traits: the abundance, reproduction mode, individual fecundity, seed rain and recruitment of new genets in the course of xerothermic grassland overgrowing. The study had also the applied goal: to estimate the chances of "special care" species to survive in the changing environment without management regime for the maintenance of grassland. The model object was the island population of large-leaved ragwort on Biała Góra (the White Mountain) near Tomaszów Lubelski, South-East Poland. To achieve these aims I used the following sets of data: phytosociological relev,s made in plant communities in an interval of 16-18 years; repeated elaboration of the numbers and life-stage structure of the population, both by non-surface and surface method; observation of plants, life cycle in 50 labelled genets; population reproduction and seed rain amounts. The area of an open xerothermic grassland decreased due to the process of overgrowing by bushes which was accompanied by the increasing coverage of forest and meadow herbs as well as monocotyledons, mainly Brachypodium pinnatum and Calamagrostis epigejos. The abundance of the S. macrophyllus population noticable diminished. The flowering mode has been changing during years from an oscillation to a chaotic type which caused the significant decreasing of the individual fecundity, population reproduction and seed rain. In last years it was reflected in the interruption of juveniles’ recruitment.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 247-256
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Predators and prey
Autorzy:
Bartoszyński, Robert
Powiązania:
https://bibliotekanauki.pl/articles/748789.pdf
Data publikacji:
1979
Wydawca:
Polskie Towarzystwo Matematyczne
Tematy:
branching processes (Galton-Watson, birth-and-death, etc.)
Population dynamics, epidemiology
Opis:
MR0549988
This article presents the basic conclusions contained in the English-language papers by the author [Math. Biosci. 33 (1977), no. 1–2, 135–144; MR0682243] and by the author and W. J. Bühler [ibid. 38 (1978), no. 3–4, 293–301; MR0479452] on the probability of extinction of the prey in a bivariate Markov chain model (Xk,Yk) for the number of prey Xk and number of predators Yk at time kT, k≥0, imbedded in a complex continuous-time process.
Źródło:
Mathematica Applicanda; 1979, 7, 15
1730-2668
2299-4009
Pojawia się w:
Mathematica Applicanda
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bark beetles in the Tatra Mountains. International research 1998-2005 - an overview
Autorzy:
Grodzki, W.
Turcani, M.
Jakus, R.
Hlasny, T.
Rasi, R.
McManus, M.L.
Powiązania:
https://bibliotekanauki.pl/articles/38438.pdf
Data publikacji:
2010
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
bark beetle
beetle
Tatras Mountains
Picea abies
population dynamics
Polska
Slovakia
Opis:
This paper is a review of fundamental information on bark beetles and their interactions with several predisposing factors (air pollution, drought/temperature interactions, windthrows, management activities) that are thought to contribute to the outbreaks in the High Tatra Mountains. The findings of many research projects indicate that the impact of air pollution on bark beetle populations is indirect and complex and that the disturbances in the physiology and natural resistance of trees may be of crucial importance to bark beetle population dynamics. An active forest protection approach is needed to be applied to the secondary Norway spruce forests affected in the past by human activity. Bark beetle populations in natural and near-natural forests (mainly in the upper montane zone) are regulated by natural mechanisms; bark beetles are therefore a natural factor contributing to forest development, including the transition of future generations of spruce.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 2
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the complex of phyllophagous Lepidoptera (Insecta) in deciduous trees of Kharkiv citi for 50 years
Zmiany w kompleksie motyli filofagicznych (Insecta, Lepidoptera) drzew liściastych w Charkowie na przestrzeni 50 lat
Autorzy:
Kardash, E.
Powiązania:
https://bibliotekanauki.pl/articles/2053030.pdf
Data publikacji:
2020
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
Lepidoptera
urban deciduous trees
lifestyle
size rank
type of population dynamics
Opis:
The aim of this work is to compare the species composition of phyllophagous Lepidoptera in deciduous trees of Kharkiv city as of the 1960s and 2017-2020, as well as the distribution of insect species by lifestyle, by the size of individuals, and by the ability to mass propagation. The greatest increase in the number of genera and species was noted in the families Gracillariidae, Tortricidae, and Geometridae, and a decrease in the families Notodontidae and Erebidae. Gracillariidae has been replenished due to 4 alien species: Cameraria ohridella, Macrosaccus robiniella, Parectopa robiniella, and Phyllonorycter issikii. Open-living species predominate in both assessments, however, at the second assessment, the number of species with semi-hidden and hidden lifestyles increased as well as the number of middle-size and small-size species. The eruptive species from the fi rst assessment became rarer, and alien species more often.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2020, 24; 27-39
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
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