22 Questions 65 Answers 0 Followers
Questions related from Stefan Ziemendorff
Last weekend I took a photo of this cave-dwelling snail in a northern peruvian cave (1200 metres above sea level). Could you please help me to identify the Genus and Family? Thank you very much.
03 March 2024 5,364 5 View
Last weekend I took a photo of this cave-dwelling harvestman in a northern peruvian cave (3000 metres above sea level). Could you please help me to identify the Genus and Family? Thank you very...
11 December 2023 3,712 0 View
I recently observed this strange worm in a Northeast Peruvian cave, which seems to catch its prey with hanging strings. Any idea what it is? Thank you very much in advance.
08 August 2023 927 2 View
This beautiful orchid was recently seen by a friend in the north peruvian Andes (Amazonas). Does anybody know to which family and genus it belongs ?
25 March 2023 5,811 4 View
Recently I took a photo of this cave-dwelling harvestman some 300 meters from the entrance in a northern peruvian cave (1500 metres above sea level). Could you please help me to identify the Genus...
01 January 2023 8,587 5 View
What program is best for the computer-assisted phonetic comparison of dialects? We would like to compare several phonetically quite close dialects of a more or less well-documented language (with...
06 October 2020 5,612 2 View
In the desert region of Moquegua, South Peru on Cerro Baul (2500 masl) i took a photo of these lizard. Does anybody know to which family and genus it belongs ?
24 June 2020 5,233 14 View
Of this type of centipede (two centimeters long) there are many in my garden, located at 2,350 meters above sea level in the Andes of northern Peru (Chachapoyas, Amazonas department). Any idea to...
29 March 2020 6,431 7 View
This type of slug abounds in my garden, located at 2,350 meters above sea level in the Andes of northern Peru (Chachapoyas, Amazonas department). Any idea to which family and genus it belong?
29 March 2020 7,211 10 View
One of the most difficult tasks in water leak detection and localization is in water distribution systems with intermittent supply – especially if the supply-time is very short (one or two hours),...
22 February 2020 3,004 5 View
What is the most recommended application for the identification of plants, especially for the Andean area and for orchids? What are your experiences with Plantsnap, PictureThis, Plantnet or others...
03 January 2019 4,248 6 View
Recently I took some photos of this interesting plant in northern Peru (3500 metres above sea level, near Kuelap). Could you please help me to identify the species, genus and family? Thank you...
12 December 2018 8,228 10 View
Recently I took a photo of this whip spider in a northern peruvian cave (1000 metres above sea level). Could you please help me to identify the Genus and Family? Thank you very much. Greatings...
15 June 2018 4,168 6 View
¿Cuáles son las más importantes revistas en el tema de ingeniería sanitaria (agua potable y saneamiento) en idioma castellano?
17 April 2018 4,082 3 View
Some single or multi-jet water meters (like this one: https://www.heatingandprocess.com/wp-content/uploads/2016/03/Elster-M170-Water-Meter-Product-Data-Sheet.pdf) having an inbuild Magnet...
26 July 2017 5,452 2 View
Some years ago I took a photo of this orchid in the Chilchos Valley, between the San Martin and the Amazonas department in Peru (1500 metres above sea level). Can anyone identify the Genus and...
19 March 2017 1,849 6 View
Recently I took a photo of this orchid in the northern Peruvian Andes (2000 metres above sea level). I think it is maybe a Phragmipedium boissierianum, but I am really not sure. Could you please...
16 January 2017 7,232 5 View
Recently I took a photo of this orchid (Sobralia) in the northern Peruvian Andes (2000 metres above sea level) Can anyone identify the Species ? Thank you very much ! Stefan
08 January 2017 5,686 9 View
Recently I read about the Unmeasured-Flow Reducer (UFR) produced by AY McDonald to reduce the under-registration of low flow rates in water meters. The problem is that the device is quite...
22 September 2016 8,591 2 View
Recently I took some photos of this spider in a cave in the northern Peruvian Andes. Can anyone identify the Species, Genus or Family? Thank you very much !
18 August 2016 5,340 8 View
That is, to find out not the antiquity of the remains, but the antiquity of cremation. If possible indicate the bibliographic references. Thank you!
15 July 2016 8,769 9 View
Are there any known Incan representations of the sun, for instance in rock art, and if so where can I find them?
16 January 2016 8,881 7 View
