Souad Neffar

16 Questions 50 Answers 0 Followers

Questions related from Souad Neffar

Is there anyone who can send me papers about crop damage and birds ??

Please, I need some recent articles on the effects of birds (sparrows) on crops . Could you help me ? The papers I have are not recent. Thank you.

07 July 2019 1,501 5 View

According to pH and EC, does the soil classification change by changing the soil-water ratio?

The soil-water ratios (1: 5 and 1: 2.5) are often used for pH and EC. Can I use the same soil classification, knowing that the pH has a logarithmic variation? Thanks.

11 November 2017 2,679 2 View

Can I have the details (in French or English) of the method of estimating microbial biomass in soil (Fumigation-extraction)?

Please, In order to see the effect of a nurse plant (Opuntia ficus-indica) on degraded soil, I would like to estimate the OM and microbial biomass under the shrub.I need the details of the...

09 September 2017 9,351 5 View

What is exactly the Edge effect?

Please give me a simplified answer. I know that the ecotone is the transition zone between 2 ecosystems characterized by its species richness (Exp. Between an agricultural land and a forest). Is...

02 February 2017 7,805 12 View

What is the correct name for the Shannon Diversity Index?

Please, In the ecological literature, i found: Shannon index, Shannon-Weaver index and Shannon-Wiener index? Which should I use? Thanks.

02 February 2017 1,655 13 View

Why always choose Shannon to evaluate the diversity of a community?

Despite the numerous indices of diversity, we opt for Shannon and Pielou indices because they are dependent of the sample size.But for the plant community, for example, in the spring, the number...

12 December 2016 3,797 10 View

Would you have an idea about the type of spores?

This is an observation of mycotrophic herbaceous cells. These spores were observed. What do you think? Thanks.

12 December 2016 4,378 5 View

Can anyone get me papers on salty soils of arid areas?

Hi, I need to describe and see similarities and dissimilarities between soil characteristics of Chotts and Sebkhas (Salty lakes in arid and semi arid areas). Thanks.

02 February 2015 8,089 2 View

Is there someone who could provide me a document that would help me to have the vital attributes of Mediterranean plant species ?

Hi, I can not find the vital attributes of some plant species. Any biogeography document could help me. Thank you.

01 January 2015 8,065 2 View

Can the strategy of a species (C, S or R) can change depending on the environment?

Functional Ecology/ Grime strategies From S to R, for example. Thanks.

09 September 2014 1,134 4 View

Functionnal Ecology (Biodiversity)

Hello, Whereby you explain a Shannon index 3 80 and eveness of 0.80 in a floristic assemblage in a degraded environment (subject to desertification). Moreover, the majority of species are...

07 July 2014 378 4 View

When richness "S", the Shannon index (H ') and evenness increase in an environment can we also talk about balanced community?

What I do know is that the Shannon index is between 0, 5 and 4.5. This value characterizes the balanced ecosystems or assemblies, such as the equatorial forest, with an elevated evenness index...

05 May 2014 6,996 5 View

Can anyone help me get a paper on adaptative strategies in a plant community, especially Noy-Meir and Grime models?

05 May 2014 5,511 5 View

What do you think of degraded soil with a C:N ratio between 10 and 12?

See above

04 April 2014 1,714 7 View

Is it possible to have soil classification according to the rate of organic matter with reference?

04 April 2014 9,880 7 View

On what depends the length of a sampling transect?

Hi, Known to be good pollinators after Apoidae, the diversity of Hoverflies is linked to plant diversity. In order to understand this relationship, I will establish transects in different types of...

01 January 1970 3,023 11 View