Wyniki wyszukiwania - Biblioteka Nauki

1

Ecological importance of Rhizophoraceae – a true mangrove family

100%

Arunprasath A. , Gomathinayagam M.

International Letters of Natural Sciences

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2015

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tom 43

EN

Mangroves are various types of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics mainly between latitudes 25° N and 25° S. Mangrove ecosystems represent natural capital capable of producing a wide range of goods and services for coastal environments and communities and society as a whole. Some of these outputs, such as timber, are freely exchanged in formal markets. Value is determined in these markets through exchange and quantified in terms of price. Particularly the mangroves of Rhizophoraceae have so many ecological importances. Breeding and nursery grounds for a number of marine organisms including the commercially important shrimp crab and fish species. Mangrove trees are also used for house building, furniture, transmission as well as telephone poles and certain household items. Mangrove trees have been the source of firewood in India since ancient time. Because of the high specific gravity of rhizophoraceous wood, the species of Rhizophora, Kandelia, Ceriops and Bruguiera are preferred for firewood.

2

Ecological importance of meadow patches in protected forest area: floristic diversity and the dynamics of insect communities

80%

Dabrowska-Prot E. , Wasilowska A.

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nr 4

EN

The present studies deal with the practical and theoretical problems of meadows in structure and functioning of the forest complex. Floristic, phytosociological and entomological studies involved fragments of two meadows located in large forest complex Kampinos National Park (Central Poland): a ‘mid-forest’ meadow surrounded by forest and ‘near-forest’ meadow situated in the boundary between forest and open area. The plant community developed on mid-forest meadow can be classified as Lysimachio-Filipenduletum ulmarie Hadč et al. 1997, on near-forest meadow as Deschampsietum caespitose Horvatic 1930. Both studied meadow communities are very widespread in Kampinos National Park and in whole Poland. Insect community containing various trophic guilds from Chloropidae family (Diptera) was chosen as representative of the entomocoenosis. From the standpoint of landscape ecology the processes of plant and insects species dispersion from meadow to forest and vice versa, across the forest meadow ecotone were analysed. The obtain results revealed that the meadows and their ecotones are refuge habitats for many plant and Chloropidae species increasing plant and entomofauna biodiversity of forest landscape. Proximity of meadows did not cause significant changes in the floristic composition of forest vegetation. Fears concerning the negative impact of meadows on natural forest vegetation through penetration of alien plant species and phytophagous Chloropidae seem to be unfounded. Ecotone was an important barrier for most plant and Chloropidae species in their dispersion from meadow to forest and vice versa. In the case of mid-forest meadow 93% of plant species did not cross ecotone, for near-forest meadow it was 83%. A high index of dispersion of Chloropidae species in mid-forest transect and poor differentiation of their numbers between zones indicate substantial colonisation of the whole system by Chloropidae, however, ecological properties of this fauna (saprophage species, a lack of distinct dominant, low density) minimised the risk it might pose to meadow complex or to adjacent forest. Near-forest meadow with much richer and diverse Chloropidae fauna contributed minimally to the fauna of ecotone and adjacent forest. Only 25% of species number of Chloropidae colonised all zones of the transect there and their majority (55%) exclusively inhabited the meadow ecosystem. It was found, that, from the point of view of natural forest protection, the role of adjacent meadows is very significant. They make ‘traps’ for certain groups of phytophagous insects.

3

Temat dzdzownic wciaz aktualny!

80%

Kostecka J.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2000

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nr 12

13-15

4

Rozważania teoretyczne nad ekologiczną rolą mszyc w lesie

80%

Tarwid K.

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nr 1-2

5

Zróżnicowanie przestrzenne wskaźnika istotności ekologicznej w województwie podkarpackim

80%

Salata T. , Cegielska K. , Gawroński K. , Czesak B.

Inżynieria Ekologiczna

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2016

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tom Nr 50

82--91

PL

W pracy zaprezentowano metodę analizy rozkładu przestrzennego sposobu pokrycia terenu w oparciu o dane pochodzące z Bazy Danych Obiektów Topograficznych w skali nominalnej 1:10000 (skrót: BDOT10k). Analiza pokrycia terenu i sposobu jego zagospodarowania pozwala na określenie wielu pochodnych parametrów związanych z działalnością człowieka i sił naturalnych. Badania wykorzystują szereg metod klasyfikacji i waloryzacji obszarów, które zmodyfikowano na potrzeby stosowania w Polsce. Zróżnicowanie typów i zmienności pokrycia terenu zostało zaprezentowane w postaci obiektowo-wektorowej. Dodatkowym celem pracy jest inwentaryzacja stanu województwa podkarpackiego w aspekcie położenia obszarów o różnym stopniu intensywności cech ekologicznych w granicach mezoregionów na poczet przyszłych analiz zmian pokrycia terenu. Dane źródłowe pozyskane zostały w formacie GML i przetworzone do postaci obiektowo-relacyjnej bazy danych SpatiaLite. Dokładność georeferencyjna granic obiektów nie przekracza 3 metrów i nie była generalizowana, co zapewnia wysoki stopień wiarygodności obliczonych parametrów. Potwierdziła to ocena jakości danych w bazie BDOT10k. Wykorzystane zostały metody geoprocessingu i związków przestrzennych w heterogenicznych systemach GIS. Wyniki analiz zostały zaprezentowane w postaci danych przestrzennych, kompozycji wielowarstwowych oraz kartogramów. Badania wykonano na obszarze 17 844 km2 dla województwa podkarpackiego.

EN

The paper presents a method for the analysis of spatial distribution of land cover based on data from Topographic GeoDatabase in a nominal scale of 1: 10000 (abbreviation: BDOT10k). The analysis of land cover and its development allow to specify a number of parameters derived from human activities and natural forces. Researchers use a variety of methods for classification and valuation of areas which have been modified for Poland. The diversity of types and variability of land cover has been presented in a form of an object – vector. An additional aim of this work is the inventory of the condition of the Podkarpackie Province in terms of the location of the areas with varying degrees of ecological features intensity in the mesoregions for future analyzes of land cover changes. The source data have been obtained in GML format and processed into an object-relational SpatiaLite database. The accuracy of geo-referenced boundaries of objects does not exceed 3 meters and was not generalized, which ensures a high degree of reliability of the calculated parameters. This was confirmed by the evaluation of the quality of the data in the BDOT10k database. Geoprocessing methods and spatial relationships in heterogeneous GIS systems were used. The results of the analyzes are presented in a form of spatial data, multi-layered compositions and cartograms. The research was conducted in the area of 17 844 km2 of Podkarpackie Province.

6

Szkodliwosc i pozyteczna rola kruka [Corvus corax] w uprawach rolniczych

60%

Bubniewicz P.

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tom 47

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nr 1

33-37