We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button

Author Topic: wildlife  (Read 220342 times)

Knud

  • Full Member
  • ***
  • Posts: 182
Re: wildlife
« Reply #1755 on: February 13, 2023, 08:47:35 AM »
Maggi, thanks for the edit, fixing my quote, I could not figure out what I did wrong. I'm rusty, must post more regularly :).

Arnold, I had heard that here too, that the yellow crocuses would not be eaten. In my picture above, they did eat the blue ones first, but the next morning the yellow ones were gone, too. And some pale yellow C. chrysanthus nearby, also up 'head first'. We have some strong yellow large crocuses (vernus?, Dutch?), but they come up later here, and by that time the deer had stopped coming, so I do not know about those.

Knud
Knud Lunde, Stavanger, Norway, Zone 8

Knud

  • Full Member
  • ***
  • Posts: 182
Re: wildlife
« Reply #1756 on: February 13, 2023, 10:18:44 AM »
Maybe there is a difference in taste?

Yes probably, and it may well be that the colour signals poison or just a bad taste. Aposematism, or warning coloration, has been an accepted concept in zoology for 150 years, and now also (as far as I understand from 'googling') in botany the last 20 years or so. Yellow and red are are among colours mentioned as aposematic, and apparantly there is not a conflict between colour as an attraction to pollinators and a defence against predators. Botanists out there, please correct me if I am wrong!

Interestingly, predator behaviour in relation to aposematism is speculated to be learned behaviour, so my yellow crocuses may have been grazed by a young deer. I hope it was left with a bad taste in its mouth after eating three bunches.

Knud
Knud Lunde, Stavanger, Norway, Zone 8

Gerdk

  • grower of sweet violets
  • Hero Member
  • *****
  • Posts: 2928
Re: wildlife
« Reply #1757 on: February 13, 2023, 12:50:17 PM »
Yes probably, and it may well be that the colour signals poison or just a bad taste. Aposematism, or warning coloration, has been an accepted concept in zoology for 150 years, and now also (as far as I understand from 'googling') in botany the last 20 years or so. Yellow and red are are among colours mentioned as aposematic, and apparantly there is not a conflict between colour as an attraction to pollinators and a defence against predators. Botanists out there, please correct me if I am wrong!

Interestingly, predator behaviour in relation to aposematism is speculated to be learned behaviour, so my yellow crocuses may have been grazed by a young deer. I hope it was left with a bad taste in its mouth after eating three bunches.

Knud

Like the other monkeys of all colours we can perceive red best because it signals ripe fruits. So besides an attraction to pollinators (insects and hummingbirds) red attracts also animals. Many garden tools are painted red to make them easier to find when they are lost.
Gerd
Gerd Knoche, Solingen
Germany

brianw

  • Hero Member
  • *****
  • Posts: 810
Re: wildlife
« Reply #1758 on: July 15, 2023, 05:46:46 PM »
If like me you associate holiday visits to Scotland with different wildlife to home, (SE UK for me) you would find visits to see plant and wildlife in Canada quite different. This link
https://www.cbc.ca/news/canada/nova-scotia/baby-ospreys-reunited-with-parents-burning-nest-1.6903059
 shows how common Ospreys (a Scottish rarity) are. I could watch an adult resting between hunting while I sat at my laptop in the apartment I stayed in recently; a suburb of Dartmouth, NS. (Town names are something else ;-))) Nest poles are mainly erected to try and stop them using the overhead power poles. It sometimes works.
Edge of Chiltern hills, 25 miles west of London, England

 


Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942
SimplePortal 2.3.5 © 2008-2012, SimplePortal