Mohammad Asif Kazi

6 Questions 22 Answers 0 Followers

Questions related from Mohammad Asif Kazi

For making tree on morphological data matrix which is better split tree using neighbour net or distance method or parsimony criterion using PAUP?

I am working on inter-relation between 20 species of nematodes based on morphology, i made a tree using parsimony criterion and NJ the toplogy is good as desired, but after bootstrap analysis ...

01 March 2016 178 4 View

Is it right to call species a bioindicator if the species is highly sensitive or highly tolerant or in both the cases?

I am working on nematodes. For a species serving as bio-indicator, are they highly tolerant or sensitive or both? In my case I got senstive and tolerant species but they are not widespread. Still...

07 July 2014 835 4 View

Is it worth of making a phylogenetic tree with morphological characters if molecular data are not available?

I am working on nematodes and I had formalin fixed and glycerol dehydrated samples samples along with taxonomy I also want to do phylogeny, but I don't have molecular data. Is it still possible...

18 June 2014 6,596 17 View

From an evolutionary point of view, selected mutations random (merely by chance) or driven by interaction with environment?

For example, in the co-evolution of plants and insects, birds or any other organism that pollinates it, the mutations they acquire with time are merely by chance or are there some signals which...

14 May 2014 619 5 View

Why are nematodes good bio-indicators of an ecosystem?

Roundworms are small, but have a potential role in recycling of nutrient and minerals in soil along with other micro-fauna they form the large base of soil ecosystem and helps in sustainability of...

07 May 2014 5,981 2 View

For calculating the food web indices (Enrichment and Structure Index), can anyone tell me on what basis the values of constant were fixed in the eqn?

I am doing ecology of nematodes and counted the nematode belonging to different trophic groups. For calculation of index the equation was used from Ferris et. al. 2001 papers but I did not come to...

02 May 2014 6,256 0 View