Informacja

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

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "niche" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-5 z 5
    Tytuł:
    Can ecological niches of unionids be defined?
    Autorzy:
    Cmiel, A.
    Lipinska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/83719.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    ecological niche
    unionid
    freshwater bivalve
    bivalve
    Źródło:
    Folia Malacologica; 2016, 24, 1
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of epicotyl emergence of Quercus robur from different climatic regions is strongly driven by post-germination temperature and humidity conditions
    Autorzy:
    Jastrzebowski, S.
    Ukalska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077749.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    epicotyl dormancy
    Richards models
    growth models
    acorns
    ecological niche
    Opis:
    Pedunculate oak (Quercus robur L.) is an important component of temperate forests in the north- ern hemisphere. It occurs naturally across Europe and in parts of North Africa, the Balkans, the Urals and the Caucasus. In Poland, it predominantly grows on the plains at ≤700 m a.s.l. The main objective of this study was to determine how different temperature-humidity growth conditions influence dormancy breakage and epicotyl emergence in Q. robur, using growth curve models. We also in- vestigated whether these differences result from changes in the climatic conditions under which the oak populations grow naturally. In this study, we selected four pedunculate oak stands in western and eastern Poland. These sites were char- acterised by oceanic and continental climates, respectively. Mature acorns were collected in the autumn of 2016 and pretreated for two weeks in the cold (4 °C). The acorns were then sown in plastic pots filled with a peat/sand substrate. Four climatic variants (cold-dry, cold-wet, warm-dry and warm-wet) and a control (average conditions) were used. Epicotyl emergence was monitored daily for 74 days. Epicotyl emergence dynamics (maximum absolute growth rate, lag time, T50), number of days to epicotyl emergence, and cu- mulative epicotyl emergence were measured or calculated. The acorns from oceanic climates required more intense warm humid conditions for epicotyl emergence than those from continental climates. In contrast, acorns from continental climates had an evolutionary advantage in that their epicotyl emergence occurred both in cold-dry and warm-wet seasons. This indicated that each population was adapted to its local environment.
    Źródło:
    Dendrobiology; 2019, 81; 73-85
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation of Favorable Habitats for Non-Gregarious Locust Pests in North Kazakhstan Based on Satellite Data for Preventive Measures
    Autorzy:
    Baibussenov, Kurmet
    Bekbayeva, Aigul
    Azhbenov, Valery
    Powiązania:
    https://bibliotekanauki.pl/articles/2173224.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    non-gregarious locust
    distribution
    phytosanitary forecasting
    ecological niche
    North Kazakhstan
    Opis:
    The paper considers the approaches and possibilities of using two types of simulation: the species distribution model and the ecological niche model. The study aimed to simulate favorable habitats and the potential spread of non-gregarious locust pests in North Kazakhstan based on satellite and ground data for preventive measures. The MaxEnt software was used to conduct the simulation. According to the species distribution model, high indicators of the habitat are predicted in the Pavlodar and Kostanay regions, on 69.9–100% of the studied territory. With the simulation of ecological niches for non-gregarious locust pests, the following class boundaries were determined for the transition from quantitative to qualitative indicators from I (85–100%) to IV (0–50%), which indicates the zones of the probability of pest attack from a higher indicator to a lower one. According to the fundamental model, high indicators of the area of pest occurrence, that is, zones I and II, are located in the central and northern parts of the Pavlodar region. Here, the probability of non-gregarious locust occurrence of zone I and II with a ratio of 1:1 is observed in a slightly arid, moderately warm agro-climatic zone. In the southern part of the Kostanay region, the simulation predicts the probability of occurrence on zones I and II with a ratio of 1:2 in the moderately arid warm agro-climatic zone of this region. In the southern and southeastern parts of the Akmola region, the model predicts the probability of occurrence in zones I and II with a ratio of 1:3 in a slightly humid, moderately warm agro-climatic zone of the region. The considered species distribution model can be used as a modern tool for long-term forecasting of the spread of non-gregarious locust pests since it takes into account the peculiarities of the agricultural landscape. The fundamental niche model can be used in a long-term population forecast since it focuses more on the theoretical conditions of pest habitats.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 7; 299--311
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The soil aggregate structure as a marker of the ecological niche of the micromollusc Vallonia pulchel
    Autorzy:
    Umerova, Ava
    Zhukov, Olexander
    Yorkina, Nadezhda
    Powiązania:
    https://bibliotekanauki.pl/articles/2073730.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    ecological niche
    geostatic analysis
    habitat
    Matérn model
    phytoindication
    soil mechanical impedance
    Opis:
    The article discusses the role of the soil aggregate structure in quantifying the marginality and specialisation axes of the ecological niche of the micromollusc Vallonia pulchella (Muller 1774) that inhabits technosols. The experimental polygon consisted of 105 samples located within 7 transects (15 samples each). The distance between rows of sampling points was 3 m. The average density of V. pulchella was 1393 ind.∙m-2. The soil aggregate fraction of 1–5 mm was found to be predominant within the technosol. The spatial variation of aggregate fractions was characterised by a moderate level of the spatial dependence. It was impossible to choose an adequate covariance model from among the traditional ones to interpolate the spatial variation of aggregate fractions, and only the Matérn model was best suited. The axis of marginality and specialisation of the V. pulchella ecological niche projected in soil aggregate fractions was significantly different from a random alternative. The ecological niche of the V. pulchella was presented by integral variables, such as the axis of marginality and specialisation, which were the basis to build a map of the spatial variation of the habitat suitability index. The marginality of the V. pulchella ecological niche correlates with soil penetration resistance indicators at depths ranging from 0–5 to 20–25 cm, soil humidity, acidity, and aeration. The specialisation correlates with the soil mechanical impedance at 25–35 cm, nitrogen content, and the soil acidity regime.
    Źródło:
    Journal of Water and Land Development; 2022, 52; 66--74
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Obiektywność percepcji zmysłowej
    The objectivity of sense perception
    Autorzy:
    Smith, Barry
    Powiązania:
    https://bibliotekanauki.pl/articles/2016133.pdf
    Data publikacji:
    2001
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    epistemologia
    percepcja
    obiektywność
    środowisko
    nisza ekologiczna
    epistemology
    perception
    objectivity
    environment
    ecological niche
    Opis:
    There is an old problem in philosophy: the problem of how we pass from the mental theater of our representations to the external realm of concrete physical objects - from the "inner” to the "outer” . This problem arises against the background of representationalist theories of the relation between mind and its objects, theories that have taken different forms since Descartes, Kant, Helmholtz or Brentano. Representationalist theories of perception are marked by the following three features: 1. The perceiving subject is idealized. It is conceived as lying outside any context or environment and in abstraction from any goal-directed behavior. 2. Perception is seen as beginning with raw or bare sensations; then, by a process of inference or deliberation, there arise beliefs about external, physical objects. 3. Physical objects are assumed to be out there in the world, but to be inaccessible to direct experience. Our knowledge of them is indirect; it is the product of hypothesis and inference. This representationalist theory lives on in the computational theories of the mind and in doctrines of "methodological solipsism” embraced by much contemporary cognitive science. But the theory rests on a mistake. By making perception dependent on sensation, and by making sensations the direct objects of experience, it has matters exactly upside down. The paper draws on the ecological psychology of J. J. Gibson and Roger Barker in order to provide the metaphysical principles of a more adequate theory.
    Źródło:
    Roczniki Filozoficzne; 2001, 49, 1; 63-75
    0035-7685
    Pojawia się w:
    Roczniki Filozoficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

      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