No title

I am searching for good quality pictures of the following "primeval forest relict beetles" of Europe (in German: Urwaldrelikte): Ampedus auripes (Elateridae) Ceruchus chrysomelinus...

10 November 2018 6,692 7 View

Can anyone provide samples of Nitella/Tolypella (Characeae) for phylogenetic analyses?

We are working on phylogeny of the European Characeae (green algea). We are still missing the following taxa: Nitella capillarisNitella flexilisTolypella intricata Can anyone provide the samples...

04 May 2017 2,038 0 View

Can anyone identify this skeleton part (marine/oceanic fish mouth)?

Probably marine fish mouth skeleton. Found on the Con Dao island (Vietnam).

03 April 2017 9,059 3 View

Can anyone identify these insects / Coleoptera from Costa Rica (Tapanti NP)?

The three Coleoptera species have been observed and photographed in April 2016 in Tapanti National Park (Costa Rica) - in mountainous forest with Oreomunnea and Alfaroa species (both Juglandaceae)...

09 October 2016 3,207 18 View

Can anyone identify these Crustacea/Decapoda from Iriomote Island (Southern Ryukyu, Japan)?

The crabs were observed and pictures were taken on oceanic shore and in mangroves of the Iriomote Island (Southern Ryukyu, Japan).

07 August 2015 316 7 View

Does anybody know any gymnosperm which is an obligate aquatic organism - other than Retrophlylum minus (Podocarpaceae) from New Caledonia?

In our recent global analysis of all extant gymnosperms we concluded that there is only one obligate "aquatic gymnosperm" taxon among ca. 1000 known species of this ancient plant group. Are there...

31 December 2014 3,314 3 View

Who knows this organism/phenomenon?

Found in Switzerland, close to a river on humid soil in December 2014. Fungal or algal organism?

31 December 2014 4,836 5 View

Why do some barks peel? What are the advantages of exfoliating for a tree?

01 January 1970 294 19 View

Is the dispersal unit of the relict tree genus Zelkova unusual/unique (twig fragment with dried leaves and fruits)?

01 January 1970 4,083 5 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

Extraction of DNA from insect samples conserved in silica gel?

Hi everybody, can anybody suggest how to extract DNA from insect samples conserved in silica gel (in my case, mosquitoes)? Does anybody know a commericial kit which does that or a particular...

10 February 2021 3,392 4 View

How do I prepare and store insect samples for JH measurements?

I need to preserve termite samples for future quantification of juvenile hormone in their bodies. Or extract the Juvenile Hormone and keep that samples stored for future quantification. I may need...

09 February 2021 1,995 1 View

Working with insect primary cells in cell medium and in saline solution?

I work with insect primary cells, which I let grow in TC100 insect medium. For fluorescence measurements I have to discard medium (because of its fluorescence properties) and give a saline...

28 January 2021 3,867 1 View

How to extract a single stranded DNA from a double stranded DNA sample isolated from stem borer(rice affecting insect) ?

How to extract a single-stranded DNA from a double-stranded DNA sample isolated from stem borer(rice affecting insect)? As I need to amplify ss Dna using a COX-1 marker having primer sequence as...

22 January 2021 3,424 3 View

Helicoverpa armigera eggs are not hatching in lab condition, why?

Dear RG friends, I am providing a complete H. armigera diet for larvae and maintaining the eggs in the growth chamber as well as in-room conditions. But since three months, eggs laid from the...

21 January 2021 5,546 32 View

Detection of insect eggs in stored and processed products?

Currently, in order to identify insect eggs in stored or processed products (such as contaminated flour or wafer samples), staining was performed based on the method mentioned in the below...

15 January 2021 6,362 5 View