Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "populations" wg kryterium: Temat


Tytuł:
„Zabić Indianina w dziecku”. O kulturowym ludobójstwie w Kanadzie i sprawiedliwości tranzycyjnej z Kate Korycki rozmawia Anna Zawadzka [“Kill the Indian in the Child.” On cultural genocide and transitional justice in Canada. Kate Korycki in an interview by Anna Zawadzka]
Autorzy:
Zawadzka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/643837.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
Canada
cultural genocide
transitional justice
indigenous populations
colonialism
racism
nation
Opis:
“Kill the Indian in the Child.” On cultural genocide and transitional justice in Canada. Kate Korycki in an interview by Anna ZawadzkaThis is an interview with Kate Korycki on the reparations for the native population in Canada for what the Canadian government defined as “cultural genocide.” Kate Korycki was born in Warsaw and has lived in Toronto for 25 years. Until 2006 she worked for the Canadian Government in a ministry delivering federal social programs, like unemployment insurance and pensions. Her last job involved the implementation of the Common Experience Payment. This was the largest government program to offer reparations for the wrongs suffered by the indigenous population in Canada in residential schools, which were run for 150 years by the Catholic and Unitarian Churches. The schools have recently been characterized as sites of cultural genocide.Kate Korycki is completing her doctorate in political science at the University of Toronto. She holds an MA in Political Science from McGill University. Her broad research agenda concerns the politics of identity, belonging, and conflict. In her doctoral work she is concentrating on the politics of identity in time of transition. „Zabić Indianina w dziecku”. O kulturowym ludobójstwie w Kanadzie i sprawiedliwości tranzycyjnej z Kate Korycki rozmawia Anna ZawadzkaAnna Zawadzka przeprowadza wywiad z Kate Korycki na temat odszkodowań przyznanychrdzennym mieszkańcom w Kanadzie za to, co rząd kanadyjski określił mianem „kulturowego ludobójstwa”. Kate Korycki urodziła się w Warszawie i mieszka w Toronto od 25 lat. Do 2006 roku pracowała dla rządu kanadyjskiego, w ministerstwie spraw społecznych, takich jak bezrobocie czy emerytury. Jej ostatnia funkcja polegała na wdrożeniu „Zadośćuczynienia Wspólnego Doświadczania” (Common Experience Payment). Ten program był najszerszym gestem władz federalnych w postaci rządowych reparacji za krzywdy wyrządzone w szkołach rezydencyjnych wobec rdzennych mieszkańców w Kanadzie. Szkoły te były prowadzone przez 150 lat przez Kościół katolicki i unitariański. To właśnie działalność tych szkół została określona mianem kulturowego ludobójstwa.Kate Korycki pisze doktorat z nauk politycznych na Uniwersytecie w Toronto, po magisterium na Uniwersytecie Mcgill. Jej zainteresowania skupiają się na polityce tożsamości, przynależności i konflikcie. 
Źródło:
Studia Litteraria et Historica; 2016, 5
2299-7571
Pojawia się w:
Studia Litteraria et Historica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
50 lat badań Instytutu Ekologii PAN nad populacjami gryzoni
50 years of studies on rodent populations in the Institute of Ecology, PAS
Autorzy:
Bujalska, Gabriela
Grüm, Leszek
Walkowa, Wiera
Powiązania:
https://bibliotekanauki.pl/articles/1963581.pdf
Data publikacji:
2004-12-31
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
Instytutu Ekologii PAN
populacje gryzoni
gryzoń
Institute of Ecology - Polish Academy of Sciences
rodent populations
Opis:
A review of rodent studies conducted in the Institute of Ecology is presented. The investigations took place both in the laboratory (mostly on Mus muscidus) and field conditions (first of all on Apodemus flavicollis, Clethrionomys glareolus and Microtus arvalis). The aim of the studies varied in time, and was always preceded by detailed, and often new, considerations on methods to be applied. Theoretical assumptions also evolved with time: from simple density-dependent approach to population demography, through the idea of the importance of population structures, to individualistic approach and neighborhood systems. A substantial part of the studies was aimed at interrelations between rodent species in heterogeneous habitats. The International Biological Program resulted in papers devoted to interrelations between rodent (secondary) productivity and basic habitat features (like food resources and their spatial distribution). Special attention was paid to confined populations, and among the long term (37 years) studies on a bank vole population inhabiting Crabapple Island.
Źródło:
Studia Ecologiae et Bioethicae; 2004, 2, 1; 647-657
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
As sociedades em risco e os múltiplos fatores que fragilizam as relações sociais em tempos de pandemia
Autorzy:
Faria, Lina
Castro Santos, Luiz A. de
Chavez Alvarez, Rocio Elizabeth
Powiązania:
https://bibliotekanauki.pl/articles/2131629.pdf
Data publikacji:
2022-06-30
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
populations at risk
social inequalities
health inequities
vulnerabilities
violence
pandemic
Opis:
O texto é uma reflexão sobre as noções de risco, vulnerabilidades, desigualdades, violências e seus impactos nas sociedades em tempos de pandemia. Abordar as interrelações entre esses conceitos e os fatores que fragilizam as relações sociais é uma problemática que ainda carece de discussão. O objetivo foi analisar algumas proposições conceituais e epistemológicas da teoria da sociedade global de risco de Ulrich Beck, da teoria dos sistemas e o conceito de risco de Niklas Luhmann e a produção de sentidos sobre riscos de Mary Jane Spink, em consonância com a relação paradoxal entre autonomia e vulnerabilidade no “pensar e agir” humano de Paul Ricoeur. Aborda também, o cenário de aprofundamento das desigualdades e das violências entre os grupos em situação de vulnerabilidade, em tempos de pandemia, mais evidente em função do crescimento das taxas de homicídios nos últimos três anos. Essas análises ajudam a entender as inseguranças com as quais a sociedade de risco diariamente se defronta, como uma pandemia, que podem fragilizar ainda mais as condições básicas de vida das populações em situação de vulnerabilidade e ampliar as desigualdades e violências.
This text is a reflection on the perceptions of risk, social inequality, violence, and their impacts on societies in times of pandemic. Addressing the interrelationships between these concepts and the factors that weaken social relations is a problem that still lacks discussion. In discussing these concepts, the aim of the present text is to analyze, although briefly, some conceptual and epistemological proposals and implications of the thought of Ulrich Beck and Niklas Luhmann on reflexive modernization, global risk societies and social systems. In addition, the text examines the social psychologist Mary Jane Spink’s considerations on risk from the point of view of the production of meanings. The text also discusses the paradoxical relationship between autonomy and vulnerability in the human "thinking and acting" of the Paul Ricoeur. The scenario of deepening inequalities and violence among vulnerable groups in these times of pandemic, most evident due to the growth in homicide and unemployment rates, is also discussed in the last three years. These analyses help to understand the insecurity that the risk society faces on a daily basis, such as a pandemic, which can further weaken the basic living conditions of vulnerable populations while expanding inequalities and violence.
Źródło:
Revista del CESLA. International Latin American Studies Review; 2022, 29; 11-28
1641-4713
Pojawia się w:
Revista del CESLA. International Latin American Studies Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the molecular cytogenetic, morphometric and biochemical parameters of Deschampsia antarctica from its southern range limit in maritime Antarctic
Autorzy:
Navrotska, Daria
Andreev, Igor
Betekhtin, Alexander
Rojek, Magdalena
Parnikoza, Ivan
Myryuta, Ganna
Poronnik, Oksana
Miryuta, Natalia
Szymanowska-Pułka, Joanna
Grakhov, Volodymyr
Ivannikov, Roman
Hasterok, Robert
Kunakh, Viktor
Powiązania:
https://bibliotekanauki.pl/articles/2041909.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
Deschampsia antarctica
marginal populations
variation
phenotypic characteristics
Źródło:
Polish Polar Research; 2018, 39, 4; 525-548
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Asymptotic behaviour of a discrete dynamical system generated by a simple evolutionary process
Autorzy:
Karcz-Dulęba, I.
Powiązania:
https://bibliotekanauki.pl/articles/907236.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
ewolucja fenotypowa
dynamika populacji
populacja mała
zachowanie asymptotyczne
phenotypic evolution
population dynamics
small populations
asymptotic behaviour
space of population states
Opis:
A simple model of phenotypic evolution is introduced and analysed in a space of population states. The expected values of the population states generate a discrete dynamical system. The asymptotic behaviour of the system is studied with the use of classical tools of dynamical systems. The number, location and stability of fixed points of the system depend on parameters of a fitness function and the parameters of the evolutionary process itself. The influence of evolutionary process parameters on the stability of the fixed points is discussed. For large values of the standard deviation of mutation, fixed points become unstable and periodical orbits arise. An analysis of the periodical orbits is presented.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2004, 14, 1; 79-90
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka miejsc gniazdowania jerzyka Apus apus w lasach Roztocza i Równiny Biłgorajskiej
Characteristics of nesting sites of the common swift Apus apus in the Roztocze and Biłgoraj Plains
Autorzy:
Stachyra, Przemysław
Mysłajek, Robert W.
Powiązania:
https://bibliotekanauki.pl/articles/16728971.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
relict bird populations
protected areas
old-growth forests
reliktowa populacje ptaków
obszary chronione
lasy naturalne
Opis:
During field studies conducted in 2019-2021, the common swift Apus apus was recorded in 78 sites located in the Roztocze and Biłgoraj Plains in south-eastern Poland. In total, 39.3% of the recorded sites were situated in national parks or nature reserves. The number of nesting pairs averaged 1.7 ±0.9 SD (range 1-5) at each study site, and did not differ between protected and managed forests. Swifts occurred in both coniferous and deciduous forests with the majority in old-growth stands (mean 147 years ±28 SD, range 80- 99). Interestingly, the mean stand age favored by the species was significantly higher in the Roztocze National Park (mean 161.9 years ±20.1 SD, range 120-90) than in managed forests (mean 139.4 years ±28.6 SD, range 80-199). All cavities in which swifts nested (n=28) were located in Scots pines Pinus sylvestris L. with a mean diameter at breast height of 57.5 cm ±9.0 SD (range 40-75 cm), and a mean height of 27.7 m ±3.0 SD (range 23-32 m). Cavities were located between 5 m and 27 m above ground (mean 16.5 m ±5.7 SD). In total, 75% of the cavities inhabited by swifts were excavated by great spotted woodpeckers Dendrocopos major, while the remaining cavities were created through bloating at the site where branches had broken o.f These results indicate that in order to protect the relict forest populations of the common swift, it is necessary to preserve patches of old-growth stands.
Źródło:
Leśne Prace Badawcze; 2021, 82, 4; 167-172
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical diversity of silverweed (Potentilla anserina L.) growing at the edges of arable fields.
Autorzy:
Angielczyk, Mirosław
Bączek, Katarzyna
Geszprych, Anna
Przybył, Jarosław L.
Węglarz, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/2199570.pdf
Data publikacji:
2010-06-01
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
catechins
flavonoids
phenolic acids
populations
secondary metabolites
silverweed herb
tannins
Opis:
The medicinal usage of silverweed herb (Anserinae herba) is primarily related to the presence of phenolic compounds. Three populations of silverweed (Potentilla anserina L.) occurring at the edges of arable fields in Podlasie area (north-eastern Poland) were compared in respect of the content and composition of phenolics. Herb collected from the investigated populations differed in the content of determined compounds. The tannin content was very low (0.81-0.91%). The total flavonoid content ranged from 0.48 to 0.60%. Phenolic acid content was much higher (1.38-2.26%). Three flavan-3-ols: (+)-catechin, (-)-epicatechin, and (-)-epigallocatechin, four flavonol glycosides: rutoside, quercetin-3-O-glucoside, isorhamnetin-3-O-glucoside, and kaempferol-3-O-glucoside, as well as one phenolic acid (ellagic acid) were identified as a_result of HPLC analysis of methanolic extracts from the investigated raw materials. The most considerable differences between populations concerned the content of (+)-catechin (87.0-199.3 mg × 100 g-1), (-)-epigallocatechin (141.9-290.6 mg × 100 g-1), and rutoside (192.3-386.0 mg × 100 g-1) in herb...
Źródło:
Plant Breeding and Seed Science; 2010, 61; 41-46
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clues to the chronology of Old Germanic loans in Romanian and in other South-East European languages
Autorzy:
Poruciuc, Adrian
Powiązania:
https://bibliotekanauki.pl/articles/677756.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
chronology
Old Germanic populations
south-east Europe
contact and assimilation
loans
phonetic changes
semantic shifts
Opis:
Clues to the chronology of Old Germanic loans in Romanian and in other South-East European languagesThe present article is directly based on the handout of the talk this author gave at the International Conference on Balkan Linguistics (6-7 May, 2013, Toruń, Nicolaus Copernicus University); therefore the subchapters and paragraphs observe the arrangement of the materials included in that handout. The first part contains a chronological table that reflects mainstream archaeological-historical information regarding the history of military-political actions and achievements of the Old Germanic populations in south-east Europe between the 3rd century BC and the 6th century of our era. Then concrete textual proofs follow, which are chronologically arranged and briefly commented upon. Finally, the author proposes interdisciplinary approaches based mainly on reference of linguistic features to historical stages and evolutions. Źródła danych do ustalenia chronologii pożyczek starogermańskich w języku rumuńskim i w innych językach Europy południowo-wschodniejArtykuł przygotowano w oparciu o dane zamieszczone w materiałach do referatu na konferencję „International Conference on Balkan Linguistics” (6-7 maja 2013, Toruń, Uniwersytet Mikołaja Kopernika); porządek poszczególnych podsekcji i paragrafów artykułu jest zatem zgodny ze strukturą tej prezentacji. Część pierwsza zawiera chronologiczne przedstawienie istotnych materiałów archeologiczno-historycznych na temat działań o charakterze militarno-politycznym oraz zdobyczy ludów starogermańskich w Europie południowo-wschodniej w okresie od III w. p.n.e. do VI w. n.e. W dalszej części przytoczono i krótko skomentowano uporządkowane chronologicznie konkretne dowody językowe. Na końcu znajduje się propozycja interdyscyplinarnego podejścia do tematu, oparta głównie na odniesieniu cech językowych do odpowiednich etapów historii i ewolucji językowej.
Źródło:
Slavia Meridionalis; 2015, 15
1233-6173
2392-2400
Pojawia się w:
Slavia Meridionalis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing dizziness and vertigo inventory responses in Thai and Thai-Chinese people
Autorzy:
Coelho, Carlos M
Pisitsungkagarn, Kullaya
Taephant, Nattasuda
Balaban, Carey D
Powiązania:
https://bibliotekanauki.pl/articles/2106204.pdf
Data publikacji:
2019-04-30
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
Motion sickness
Fear of heights
Vertigo syndromes
Asian populations
Opis:
It is acknowledged that ancestry may play a role in the likelihood of reporting motion sickness, based upon questionnaires in which symptoms are reported more frequently in individuals with Asian ancestry. This study compares motion sickness and related vertigo syndromes in Thai and Thai-Chinese populations. The Motion Sickness Questionnaire; Albany Panic and Phobia Questionnaire; Acrophobia Questionnaire; Body Symptoms Questionnaire and the Situational Characteristics Questionnaire were administered to 128 participants. Eighty-eight participants had a father, mother and all grandparents of Thai origin, while 44 participants had with at least one Chinese ancestor among parents or grandparents. All responses were similar between groups except regarding fear of heights, which is significantly higher in Thai participants without recent Chinese ancestors. Reported motion sickness sensitivity is similar between Thai and Chinese populations. The group differences for some fear of heights items may be linked to each group’ previous experience with heights. Results also suggest that although conquering a fear of heights might require specific visuo-vestibular adaptations, these adaptations alone may not be sufficient to lessen an individual’sfear of heights.
Źródło:
Acta Neuropsychologica; 2019, 17(1); 55-67
1730-7503
2084-4298
Pojawia się w:
Acta Neuropsychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
COMPARING PROPORTIONS OF SENSITIVE ITEMS IN TWO POPULATIONS WHEN USING POISSON AND NEGATIVE BINOMIAL ITEM COUNT TECHNIQUES
Autorzy:
Kowalczyk, Barbara
Wieczorkowski, Robert
Powiązania:
https://bibliotekanauki.pl/articles/453738.pdf
Data publikacji:
2017
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
sensitive questions
Poisson and negative binomial item count techniques
latent data
two populations
asymptotic test
Opis:
Sensitive attributes are extremely difficult to be measured directly. Recently new indirect methods of questioning, called Poisson and negative binomial item count techniques, have been proposed by [Tian et al. 2014]. This paper focuses on important problem of comparing proportions of sensitive items in two populations when using new indirect method. Proper statistical theory is introduced, including tests for equality of two sensitive proportions followed by derivation of their asymptotic power functions. Simulation studies are conducted to illustrate the problem.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2017, 18, 1; 68-77
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Culture methods as indicators of the biological quality of phytostabilized heavy metal-contaminated soil
Autorzy:
Krzyżak, J.
Wasilkowski, D.
Płaza, G. A.
Mrozik, A.
Brigmon, R. L.
Pogrzeba, M.
Powiązania:
https://bibliotekanauki.pl/articles/363080.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
aided phytostabilization
EP indices
CD indices
contaminated soil
cadmium
lead
soil microbial populations
zanieczyszczenie gleby
ołów
kadm
fitostabilizacja
wskaźniki
drobnoustroje
gleba
Opis:
The short-term effect of aided phytostabilization of heavy metalcontaminated soil on microorganisms under outdoor field conditions was tested. Heavy metal contaminated soil from a mining site was amended with lignite, lime and two commercial fertilizers and vegetated with grass Festuca arundinacea. Results demonstrated that the amended phytostabilization approach of Pb-Cd contaminated soil gave a positive change on the native microbial populations evaluated by culturable techniques during the first 28 weeks of the experimental period. In the end of the experiment, the number of bacteria, actinomycetes and fungi increased in treated soil about 16-fold, 10-fold and 2-fold, respectively. Changes in the biodiversity of bacterial populations were evaluated by the Ecophysiological Index (EP) and the Colony Development Index (CD) for oligotrophs and copiotrophs. During the experimental period slower growing microorganisms (K-strategists) predominated. The application of amendments to the soil led to an increase of the CD index in both copiotroph and oligotroph populations after 28 weeks. EP, CD, bacteria, actinomycetes and fungi increased in the treated soil. Traditional microbiological methods based on culture techniques can be used to evaluate the biological quality of the phytostabilized heavy metal-contaminated soil.
Źródło:
Environmental Biotechnology; 2013, 9, 1; 6-13
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of Finite Population Mean Using Deciles of an Auxiliary Variable
Autorzy:
Subramani, J.
Kumarapandiyan, G.
Powiązania:
https://bibliotekanauki.pl/articles/466087.pdf
Data publikacji:
2013
Wydawca:
Główny Urząd Statystyczny
Tematy:
mean squared error
natural populations
simple random sampling
Opis:
The present paper deals with a class of modified ratio estimators for estimation of population mean of the study variable when the population deciles of the auxiliary variable are known. The biases and the mean squared errors of the proposed estimators are derived and compared with that of existing modified ratio estimators for certain known populations. Further, we have also derived the conditions for which the proposed estimators perform better than the existing modified ratio estimators. From the numerical study it is also observed that the proposed modified ratio estimators perform better than the existing modified ratio estimators.
Źródło:
Statistics in Transition new series; 2013, 14, 1; 75-88
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hidden unemployment in Polish agriculture in 2005-2018 - a simulation of the scale of the problem
Bezrobocie ukryte w polskim rolnictwie w latach 2005-2018 - próba symulacji skali zjawiska
Autorzy:
Kołodziejczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/1790376.pdf
Data publikacji:
2020
Wydawca:
The Polish Association of Agricultural and Agribusiness Economists
Tematy:
labor resources
hidden unemployment
labor market
agriculture
rural populations
zasoby pracy
bezrobocie ukryte
rynek pracy
rolnictwo
ludność wiejska
Opis:
The purpose of this paper is to estimate the levels of potential hidden unemployment in Polish agriculture in 2005, 2015 and 2018. Excessive employment in agriculture (understood as hidden unemployment) is one of the key outstanding problems in the process of modernizing Polish rural areas. This paper uses a method for estimating these processes based on the results of a simulation based on the assumption that agriculture has a 5% share in the total working population employed in the national economy. The study relied on EUROSTAT and Central Statistical Office data and on relevant literature. The level of agricultural employment and the amount of surplus workforce differ across voivodships and suggest that structural factors continue to have a strong impact. The distance to the 5% level assumed in the simulation has been decreasing in subsequent years. Hence, achieving this goal seems more and more realistic.
Celem artykułu jest próba oszacowania poziomu potencjalnego bezrobocia ukrytego w polskim rolnictwie w latach 2005, 2015 i 2018. Nadmierne zatrudnienie w rolnictwie, czyli bezrobocie ukryte, jest jednym z najważniejszych problemów, jakie pozostały do rozwiązania w procesie modernizacji polskiej wsi. Zastosowano metodę szacowania poziomu tego zjawiska na podstawie wyników symulacji liczby pracujących w rolnictwie, przyjmując, że pracowałoby w nim 5% ogółu pracujących w gospodarce narodowej. Wykorzystano dane EUROSTAT i GUS oraz literaturę przedmiotu. Zróżnicowany pomiędzy województwami poziom zatrudnienia w rolnictwie i skala nadwyżek zasobów pracy wskazują na wciąż silne oddziaływanie czynników o charakterze strukturalnym. Korzystne zmiany wartości wskaźników charakteryzujących rynek pracy oraz malejące obciążenie rolnictwa bezrobociem ukrytym, wskazują, że przyjęty w symulacji poziom 5% wydaje się coraz bardziej realny.
Źródło:
Annals of The Polish Association of Agricultural and Agribusiness Economists; 2020, 22, 1; 170-180
2657-781X
2657-7828
Pojawia się w:
Annals of The Polish Association of Agricultural and Agribusiness Economists
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Juniperus excelsa s. str. in Crimea - differentiation and history inferred from genetic and morphological markers
Autorzy:
Mazur, Małgorzata
Jadwiszczak, Katarzyna A.
Bona, Agnieszka
Krasylenko, Yuliya
Kukushkin, Oleg
Marcysiak, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/2040954.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
biometry
cpDNA
Crimean Sub-Mediterranean
isolated populations
juniper
ITS
Opis:
Juniperus excelsa s. str. (Greek juniper) in Crimea is a relic species on the limits of its range, and represents the Mediterranean flora in the Sub-Mediterranean part of the peninsula. Its origin and history in this area remains unresolved. We aimed to analyze phylogeny and potential demographic expansion of the juniper in the Crimea as well as to study its morphological differentiation. We analyzed plant material from 59 trees inhabiting eight populations. Genetic variation assessments were based on the four non-coding chloroplast DNA (cpDNA) fragments and the nuclear internal transcribed spacer region ITS1-5,8S-ITS2 (ITS). To examine the morphological differentiation, eight measured/counted traits of cones, seeds, and shoots were chosen and eight ratios were calculated. Morphological parameters were compared using ANOVA, Student’s t test, discrimination analysis and Kruskal-Wallis and U MannWhitney tests. Two cpDNA fragments were polymorphic and, in total, 10 cpDNA haplotypes were found. Haplotype diversity (Hd) ranged from 0.0 to 0.9. Based on both cpDNA and ITS sequences variation, phylogenetic analyses revealed a close relationship of the Crimean junipers to the individuals from other parts of the species range. In general, our molecular results confirmed the low level of genetic differentiation of J. excelsa individuals inhabiting different parts of the species range, likely resulting from a common ancestry. Only slight morphological differences were found between populations with different geographic location or habitat. The analyzes showed the distinctness of the populations from the southern part of the coast. Some unique morphological and molecular features of southern coastal populations imply that they are remnants of Late Pleistocene abundant forests. We suggest that the recent fragmentation of the Juniperus populations in the Crimean Peninsula could have arisen during the Atlantic period of the Holocene.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 4; 276-288
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies