Temat: Shannon-Wiener diversity index - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spring barley response to tillage systems and crop residues
Reakcja jęczmienia jarego na systemy uprawy roli i resztki pożniwne
Autorzy:: Woźniak, A.
Rachoń, L.
Powiązania:: https://bibliotekanauki.pl/articles/13925494.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:: spring barley
tillage system
crop residue
grain yield
weed infestation
Shannon-Wiener's diversity index
Źródło:: Agronomy Science; 2022, 77, 1; 27-43
2544-4476
2544-798X
Pojawia się w:: Agronomy Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Community Structure of Lumbricidae in Permanent Grassland and Arable Land
Autorzy:: Mazur-Pączka, Anna
Pączka, Grzegorz
Kostecka, Joanna
Garczyńska, Mariola
Podolak, Agnieszka
Szura, Renata
Powiązania:: https://bibliotekanauki.pl/articles/123970.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: earthworms
biodiversity
agricultural areas
dominance
frequency
Shannon-Wiener diversity index
dominance values of Berger-Parker
Opis:: Lumbricidae play a key role in the soil environment as “the ecosystem engineers”. They participate in all the categories of services provided by ecosystems. In agricultural areas, the conventional intensive farming practices have led to a significant decline in the biological diversity of soils including earthworms. In this study, we attempted to characterize the community structure of earthworms in permanent grassland and arable land of the Didactic & Experimental Station of Rzeszów University in Krasne near Rzeszów. Similar densities of earthworms were observed in the grassland and in the arable land (101.01 ± 18.03 ind. ∙ m^-2 and 82.12 ± 18.26 ind. ∙ m^-2, respectively) (p > 0.05) as well as a similar biomass of Lumbricidae (77.72 ± 15.30 g ∙ m^-2 and 54.34 ± 11.72 g ∙ m^-2) (p > 0.05). In the research, 7 species of earthworms were found in the permanent grassland and 6 representatives of Lumbricidae were identified in the arable land. The identified earthworms represented all three main morpho-ecological groups. The density and biomass of epi-endogeic earthworm L. rubellus and the anecic species of L. terrestris were shown to be higher (p < 0.05) in the grassland as compared to the arable land. In order to protect Lumbricidae and to sustain the beneficial role of earthworms in an ecosystem, it is necessary to monitor the negative changes in populations of earthworm species attributed to various farming practices.
Źródło:: Journal of Ecological Engineering; 2019, 20, 5; 1-6
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The biodiversity of weed communities of dent maize, narrow-leaved lupin and oat in relation to cropping system and weed control
Bioróżnorodność zbiorowiska chwastów w kukurydzy, łubinie wąskolistnym i owsie w zależności od systemu uprawy i regulacji zachwaszczenia
Autorzy:: Głowacka, A.
Flis-Olszewska, E.
Powiązania:: https://bibliotekanauki.pl/articles/13925475.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:: maize
narrow-leaved lupin
oat
biodiversity
intercropping
Shannon-Wiener's diversity index
Margalef index
Simpson dominance index
Pielou's evenness index
Źródło:: Agronomy Science; 2022, 77, 3; 123-137
2544-4476
2544-798X
Pojawia się w:: Agronomy Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Impact of Jute Retting on Native Fish Diversity and Aquatic Health of Roadside Transitory Water Bodies: an Assessment in Eastern India
Autorzy:: Ghosh, D.
Biswas, J. K.
Powiązania:: https://bibliotekanauki.pl/articles/125476.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: transitory water bodies
physicochemical analysis
fish diversity
Shannon-Wiener Index
jute retting
Opis:: Roadside transitory water bodies being manmade depressions have a great ecological and socio-economic importance from years. The effects of agricultural runoffs, jute retting, macro-phytes infestations and inadequate rainfall in changed climate often degrade transitory water bodies’ environment while the biodiversity have impacted severely because of population pressure, over exploitation and indiscriminate use of fine meshed fishing gears as a whole. Physico-chemical and biological analysis with fish species composition, relative abundance, diversity indices like species richness, evenness and Shannon-Wiener index were carried out for pre-, during and post-jute retting season and for year mean as a whole to assess impact of jute retting on the roadside transitory water body’s environmental health and indigenous fish diversity at Sahebnagar village in Nadia District, India. All the physico-chemical parameters barring biochemical oxygen demand and water transparency remained more or less same or marginally got little changed during those three seasons. As much as 19 native fish species with varied relative abundances and dominances were identified. Jute retting impacted lower native fish diversity indices like Shannon-Wiener index values (1.94 to 2.68) clearly indicated poor to moderate pollution status of the transitory water body in that area during monsoon in particular and throughout the year in general. So we opined there should be some control over the intense jute retting in the road side transitory water bodies for sustainable management of these manmade resources.
Źródło:: Journal of Ecological Engineering; 2015, 16, 4; 14-21
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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