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Wyszukujesz frazę "wild habitat" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Trichinellosis in Italy [1988-1993]
Autorzy:
Pozio, E.
Powiązania:
https://bibliotekanauki.pl/articles/2151560.pdf
Data publikacji:
1994
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
wild habitat
Italy
trichinellosis
Vulpes vulpes
epidemiology
Trichinella britovi
Trichinella spiralis
fox
Źródło:
Wiadomości Parazytologiczne; 1994, 40, 4; 392
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of wild Thymus capitatus (Lamiaceae) in Tunisia using molecular markers
Autorzy:
Ben El Hadj Ali, I.
Guetat, A.
Boussaid, M.
Powiązania:
https://bibliotekanauki.pl/articles/41663.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
genetic diversity
wild plant
Thymus capitatus
Lamiaceae
Tunisia
molecular marker
habitat fragmentation
conservation strategy
genetic structure
Opis:
In Tunisia, Thymus capitatus L. populations are severely destroyed due to deforestation and over-collecting. The species occurs in small scattered populations decreasing progressively in size. Yet, no conservation or improvement programs are attempted to preserve and promote the potential value of this resource. In this work, we assessed the genetic diversity of nine Tunisian populations of Thymus capitatus L. from different bioclimates, using 103 polymorphic randomly amplified polymorphic DNA (RAPD) loci. The analysis of the genetic variation within and among populations is primordial to elaborate conservation and improvement programs. The species showed a low diversity within populations (0.276
Źródło:
Dendrobiology; 2012, 68
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Annual reproductive cycle in two free living populations of three-spined stickleback (Gasterosteus aculeatus L.): patterns of ovarian and testicular development
Autorzy:
Sokolowska, E.
Kulczykowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/47889.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
free living population
stickleback
gonad
environment change
reproductive cycle
wild population
Oliva Stream
natural habitat
fresh water
breeding
Vistula River
Gasterosteus aculeatus
spermatogenesis
vitellogenesis
Opis:
The annual reproductive cycle in two wild populations of three-spined stickleback was studied. Sticklebacks from the Dead Vistula River (Martwa Wisła) (brackish water) and the Oliva Stream (Potok Oliwski) (freshwater) were exposed to annual environmental changes in their natural habitats. Ovaries and livers (females), and testes and kidneys (males) were collected during 1–2 years. The gonadosomatic IG, hepatosomatic IH, nephrosomatic IN indices, kidney epithelium height (KEH) and size of oocytes were calculated. The number of mature oocytes and percentage of ovulating females were determined during the spawning season. Histological changes in the ovaries and testes were described throughout a year. Annual reproductive cycles were similar in both populations of sticklebacks. This is the first histological and morphological study carried out throughout a year, simultaneously in two wild populations of three-spined sticklebacks inhabiting different environments. An improved scale of gonadal development in conjunction with the determined indices and fecundity give a comprehensive description of the reproductive cycle. These newobserv ations, in combination with previously reported features, provide a universal scale that can be successfully used to distinguish all phases of gametogenesis in sticklebacks in different habitats.
Źródło:
Oceanologia; 2006, 48, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The number and abundance of ichneumonidae (Hymenoptera, Apocrita) subfamilies occurring in apple orchards and on their edges
Autorzy:
Piekarska-Boniecka, H.
Zyprych-Walczak, J.
Rzańska-Wieczorek, M.
Dinh, D.T.
Siatkowski, I.
Powiązania:
https://bibliotekanauki.pl/articles/11896262.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Czempin town
Gluchowo village
Gorzyczki village
plant habitat
plant environment
apple orchard
wild plant
plant diversity
insect
Hymenoptera
Apocrita
Ichneumonidae
Campopleginae
Cryptinae
Orthocentrinae
Pimplinae
beneficial insect
parasitoid
animal number
insect abundance
animal-plant interaction
ecological research
Opis:
Plant communities which form orchard edges are a vital element of ecological infrastructure enriching these agrocenoses. The research was conducted in an orchard environment made up of apple orchards and their edges in the form of agricultural cultivations, tree clumps and a road lined with trees and shrubberies. The study aim was to determine the impact of the orchard edge plant diversity onto the number and abundance of Ichneumonidae subfamilies in the orchards. The study showed that orchard environments made up of an apple orchard and edge plants of various species create better living conditions for Ichneumonidae parasitoids than the environment of an orchard and neighbouring agricultural cultivations. The diversity of orchard edge plants positively influences the abundance of the Ichneumonidae subfamilies rather than the number of subfamilies in the orchard. In the orchard habitat the following dominant subfamilies were found: Campopleginae, Cryptinae, Orthocentrinae and Pimplinae. These entomophages may control the abundance of pests infesting orchards.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 93-103
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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