Informacja

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

Wyszukujesz frazę "pokarmowe" wg kryterium: Temat


Wyświetlanie 1-10 z 10
Tytuł:
Indeks waznosci roslin w jesienno-zimowym pokarmie jelenia szlachetnego [Cervus elaphus L.]
Autorzy:
Janiszewski, P.
Szczepanski, W.
Powiązania:
https://bibliotekanauki.pl/articles/823093.pdf
Data publikacji:
2002
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
sklad pokarmu
zwierzeta lowne
lowiectwo
preferencje pokarmowe
lesnictwo
jelen europejski
Cervus elaphus
Źródło:
Sylwan; 2002, 146, 06; 65-73
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika obiegu niektórych składników pokarmowych w glebach jako element wyceny taksacyjnej siedlisk leśnych
Dinamika obmena nekotorykh pitatelnykh veshhestv v pochvakh - kak ehlement taksacionnojj ocenki lesnykh uslovikk mestoproizrastanija
Dynamics of circulation of some nutrients in soil as element of forest site appraisal
Autorzy:
Gruszczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/824472.pdf
Data publikacji:
1988
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gleboznawstwo lesne
gleby lesne
zasobnosc gleb
skladniki pokarmowe
magnez
potas
fosfor
obieg pierwiastkow
siedliska lesne
Źródło:
Sylwan; 1988, 132, 08
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czynniki wplywajace na zroznicowanie zageszczenia populacji borsuka [Meles meles L.] w Polsce
Autorzy:
Borowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/818900.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dostepnosc pokarmu
preferencje srodowiskowe
fauna
Meles meles
borsuk
Polska
lasy
preferencje pokarmowe
populacje zwierzat
lesnictwo
zageszczenie populacji
Źródło:
Sylwan; 2001, 145, 03; 33-42
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problemy leśno-łowieckie w tematyce obrad Międzynarodowej Unii Biologów Łowieckich - IUGB (Kraków, 1987)
Lesokhozjajjstvennye i okhotnichi problemy v tematike zasedanijj Mezhdunarodnojj Unii Biologov Okhotovedov, (Krakov, 1987)
Forest-game problems in the topic cf the conference cf the International Union of Game Biologists, Cracow, 1987
Autorzy:
Szukiel, E.
Powiązania:
https://bibliotekanauki.pl/articles/819743.pdf
Data publikacji:
1989
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lowiectwo
zwierzeta lowne
szkody w lesie
szkody lowieckie
preferencje pokarmowe
konferencje
Miedzynarodowa Unia Biologow Lowieckich
Krakow konferencja
Źródło:
Sylwan; 1989, 133, 05
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferencje żerowe dzików (Sus scrofa L.) w okresie lata i wczesnej jesieni w aspekcie szkód powodowanych w uprawach rolniczych
Food preferences of wild boars (Sus scrofa L.) in the summer and early autumn expressed by the damage caused in agricultural crops
Autorzy:
Nasiadka, P.
Janiszewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/989894.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zwierzeta lowne
dzik
Sus scrofa
szkody lowieckie
szkody w rolnictwie
lato
jesien
preferencje pokarmowe
uprawy polowe
sus scrofa
damage in agriculture
food preferences
Opis:
Wild boars (Sus scrofa) are regarded as food generalists and opportunists, whose great flexibility in food selection enables them to settle in various environments in a wide geographical area inhabited by them. Wild boars are perceived also as agricultural pests, since due to their dietary habits and a method of food seeking more crops are destroyed than consumed. In European habitat of wild boars, which undergoes long−term transformation, cultivated plants are an important ingredient of wild boars' summer and autumn diet. The issue of damage caused by wild boars has not been widely investigated in Poland so far. We analysed what is the crop damage caused by wild boars in summer and early autumn and whether the accessibility of crops (difference in crop acreage) determine the extent of this damage as well as we investigated if wild boars demonstrate preference to particular crops and how flexible they are while selecting food in the period of its oversupply. Research was based on 4215 reports on damage received by the Spała Forest District (C Poland) in 1999−2009 period. In analysed time wild boars caused damage in the wide range of crops. The greatest number of reports concerned damage in potato and in the fields seeded with cereals, while only a few – in beetroot, charlock, buckwheat and rape crops (tab. 1). Statistically significant and high correlation between the area of crops and the extent of damage was recorded. However, the damage was not serious enough to make the proportion of affected area grow bigger along with the area of crops (tab. 2). Although the analysed time span encompassed only 3 months, distinct differences in the extent of damage to cereal (excluding maize) and potato crops were marked. Crops affected the most in July included cereals. In August cereals were still the most affected crops, yet in September a radical change in wild boars' dietary preferences was noticed, while cereals distinctively came second after potatoes (fig. 2). In general, during summer and early autumn wild boars seeking food on fields damage a wide range of cultivated plants without a particular preference towards any species (evident opportunism in the food selection). The number of reported damage and its spatial extent is correlated with the area of particular species cultivation, yet the proportion of damaged area does not increase along with the crops area. Time, which wild boars can spend seeking for food out of the woods appears to be one of the limiting factors. Significant changes in the structure of damage in the short time span prove that wild boars are highly flexible in food selection, which can definitely facilitate their adaptation to new or changing environmental conditions.
Źródło:
Sylwan; 2015, 159, 04; 307-317
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferencje pokarmowe bobra europejskiego (Castor fiber L.) na terenach zurbanizowanych oraz chronionych
Forage preferences of the European Beaver [Castor fiber L.] on urban and protected areas
Autorzy:
Czyżowski, P.
Karpiński, M.
Drozd, L.
Powiązania:
https://bibliotekanauki.pl/articles/1012040.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
obszary chronione
bobr europejski
tereny zurbanizowane
Castor fiber
preferencje pokarmowe
Nadwieprzanski Park Krajobrazowy
lesnictwo
jezioro Sumin
european beaver
forage preferences
damage of trees
Opis:
This paper compares food preferences (tree species) of beavers that live in urban and protected areas. All trees were identified to species level, and their diameter at breast height placed into one of eight classes. Results showed differences between trees species grieved by beavers and dbh classes on studied urban and protected areas.
Źródło:
Sylwan; 2009, 153, 06; 425-432
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wplyw gryzoni na naturalne odnawianie sie drzew i krzewow w zbiorowiskach lesnych
Autorzy:
Skrzydlowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/818790.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
mysz lesna
krzewy lesne
preferencje pokarmowe
szkodniki
lesnictwo
nornica ruda
mysz zaroslowa
Apodemus flavicollis
nasiona
Apodemus sylvaticus
odnowienia naturalne
Clethrionomys glareolus
drzewa lesne
gryzonie
Źródło:
Sylwan; 2001, 145, 12; 93-102
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferencje żerowe saren w odniesieniu do różnych odmian jabłoni z punktu widzenia wykorzystania tego gatunku w urządzaniu łowisk leśnych
Preferences of roe deer to different varieties of apple from the point of view of managing the forest hunting grounds
Autorzy:
Nasiadka, P.
Bors, K.
Wajdzik, M.
Skubis, J.
Powiązania:
https://bibliotekanauki.pl/articles/989505.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lowiectwo
zwierzeta lowne
sarny
preferencje pokarmowe
preferencje zerowe
szkody lowieckie
lowiska lesne
baza pokarmowa
jablonie
odmiany roslin
dobor odmian
urzadzanie lowisk
capreolus capreolus
malus domestica
damage
orchard
browsing
Opis:
The results of the inventory of damage caused by roe deer in a 2−year−old apple orchard in central Poland permitted to evaluate the browsing intensity as well as the relationship between biometric characteristics of trees and browsing intensity. The research showed that damage caused by the roe deer was mainly caused by shoot browsing, then rubbing the velvet antlers against trees and bark stripping. In one winter, roe deer damaged 35% of the orchard by browsing even up to 100% shoots on an individual tree. Significant differences were found between the intensity of browsing the different varieties of apple trees. The largest damage was noted in the case of the Ligol variety (35% of shoots on average), while the smallest – for the Idared and Golden Delicious varieties (approximately 5% of shoots on average). Branching and tree height were not found to affect the level of damage. When establishing forest hunting grounds, the Ligol variety, eagerly browsed by roe deer, should be planted on browsing plots, while Idared and Golden Delicious varieties – in orchards designed for fruiting.
Źródło:
Sylwan; 2016, 160, 10; 837-845
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekologiczne konsekwencje hodowli drzew w różnym zagęszczeniu II. Produkcja i alokacja biomasy, retencja biogenów
Ecological consequences of silviculture at variable stand densities. II. Biomass production and allocation, nutrient retention
Autorzy:
Jagodziński, A.M.
Oleksyn, J.
Powiązania:
https://bibliotekanauki.pl/articles/1011811.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wiezba drzew
zageszczenie poczatkowe
mikroelementy
lesnictwo
skladniki pokarmowe
ekologia lasu
makroelementy
zageszczenie roslin
dostepnosc skladnikow pokarmowych
wymiana gazowa
drzewostany
biomasa
alokacja biomasy
stand density
spacing
tree competition
forest ecology
biomass allocation
nutrient retention
review
Opis:
The main goal of this review was to characterize ecological consequences of growing trees at variable stand densities. Increasing stand density results in rising competition among trees in their below− and above− ground parts, leads to changes in stand structure (DBH, height, crown width and length, crown ratio, tree slenderness, branch diameters and length) and thus modifies biomass partitioning and may influence stand productivity. Trees grown at higher density compete more intensely for limited resources such as space, light, water and nutrients, than in those grown at wider spacing. In general, total tree biomass accumulation is higher in more dense stands and in less dense stands a higher proportion of biomass is allocated to coarse roots. Moreover, stand density may alter foliage distribution within the crowns. For stands grown at higher tree density, leaf area index (LAI) may increase and thus influence stand productivity, however LAI is closely related to light requirements and succession status of the species. Because stand density may simultaneously modify macro− and micronutrient concentration in different tree tissues and biomass partitioning, it may lead to distinct changes in the nutrient balance of the forest ecosystem. For example, a considerable pool of stand mineral elements (including carbon) is allocated to roots that are not subjected to traditional stand management. Therefore, manipulation of stand density leading to higher biomass allocation to roots may increase carbon sequestration in forest ecosystems.
Źródło:
Sylwan; 2009, 153, 03; 147-157
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skład pokarmu wybranych ssaków drapieżnych na terenie Gorczańskiego Parku Narodowego
Diet composition of carnivore species in the Gorce National Park
Autorzy:
Gaspar, G.
Wierzbowska, I.A.
Misiewicz, A.
Armatys, P.
Loch, J.
Czarnota, P.
Wierzbowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/985769.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Canis lupus
parki narodowe
Gorczanski Park Narodowy
ssaki drapiezne
wilk
rys
Lynx lynx
lis pospolity
Vulpes vulpes
kuna lesna
Martes martes
sklad pokarmu
analiza skladu pokarmu
ssaki kopytne
drobne ssaki
nisze pokarmowe
canis lupus
lynx lynx
vulpes vulpes
martes martes
ungulates
the carpathians
Opis:
The aim of the study was to assess the diet composition of four carnivore species inhabiting the Gorce National Park (Western Carpathians, S Poland), i.e., grey wolf (Canis lupus), Eurasian lynx (Lynx lynx), red fox (Vulpes vulpes), and pine marten (Martes martes). The food analysis was based on scats collected between June 2016 and February 2017 along seven transects of a total length 96.13 km. Altogether 187 faeces were found, 95 of grey wolf, 20 of lynx, 49 of red fox, and 23 of pine marten, respectively. The dominant food category of wolf and lynx were ungulates, comprising respectively 98% and 95% of the consumed biomass. The trophic niche overlap between wolf and lynx was very high (Pianka’s index Ojk=0.99). However, there were differences in the consumed prey species. Wolves fed on red deer (Cervus elaphus), roe deer (Capreolus capreolus) and wild boar (Sus scrofa), while lynxes foraged equally on two ungulates, red deer and roe deer. Medium−sized carnivores showed greater variety in consumed food. Both pine marten and red fox had higher values of Levins’ index of the trophic niche breadth than larger carnivores and highly overlapped their diets (Ojk=0.96). Pine marten and red fox consumed mostly small mammals. Additionally, martens consumed frequently fruits, whereas red foxes foraged on carrion of ungulates. This might explain the fact that wolf and lynx overlapped their trophic niches more with red fox than with the pine marten.
Źródło:
Sylwan; 2018, 162, 04; 333-342
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

    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