* Login   * Register Feedback Feedback    * FAQ    * Medals   * Search
It is currently Wed Aug 23, 2017 10:53 am

All times are UTC + 1 hour




Post new topic Reply to topic  [ 92 posts ]  Go to page Previous  1, 2, 3
Author Message
 Post subject: Re: my new pond project
PostPosted: Sat May 27, 2017 12:55 pm 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
awesome pictures agrius, amazing how the water beetle larvae can take tadpoles so much bigger than them. great how you've got so many things emerging,, some serious numbers there


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun May 28, 2017 6:17 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
its just a matter of holding on to the thrashing taddy until the poison takes effect i guess lol. if they get their jaws into the taddies body its over for it, but if they grab the tail, it sometimes breaks off letting the tadpole get away. not sure if it grows back, as i cant find any info online. the small larvae dont seem to have any fear of even big tadpoles at all. but the larvae do seem frightened of smooth newts and also each other. tadpoles are very afraid of both newts and the larvae, but esp the larvae, as newts dont eat tadpoles when they get big, but gd beetle larvae do lol. ive only seen one larvae eating another larvae once, even though they bump into each other alot. ive seen them eating a damselfly larvae, dragon fly larvae and a backswimmer nymph. only seen one dead smooth newt in the pond, and that was before the gd larvae. so i dont think they are preying on adult smooth newts. there are now a s@$t load of the larvae. they are everywhere i look of all sizes lol. they seem totally blind and dont know a tadpole is there unless they contact it. so at least the poor tadpoles have that going for them.

the chaser dragonflies seem to be hornet mimics. they fly around much like them, and quite slow for a dragonfly really. and even have yellow markings on the abdomen. they do chase each other too, so i guess they are well named lol

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Mon May 29, 2017 11:40 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
just been out with the torch in dark, looking in pond. female gc newt laying eggs again on the water soldier plant. shes there every night. there are a few visible gc newt larvae now, swimming around. they look like fish. found two large insect wings floating on the surface. one was a beetle wing, so either a great diving beetle or cockchafer, and the other was half a dragonfly wing. no other obvious remains. i wonder what killed them. my guess is bat or magpie. the many diving beetle larvae are still killing a lot of tadpoles. i saw one which was virtually a froglet, so bit annoyed with that. will any taddies make it? with the adult beetle dead (or flown off), hopefully there wont be any new larvae and some baby froggies can make it out.

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Wed May 31, 2017 9:37 am 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
Sounds like a war zone...guess that's why they lay so many eggs aha tough life for a tadpole


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Wed May 31, 2017 11:34 am 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
yah. and then theres drying out of their ponds. the pond (if you can call it that) i 'stole' the frogspawn from, about a mile away, dried up completely weeks ago. so i guess all of the tadpoles died. at least the frogspawn i took had a fighting chance. i reckon about a quarter will become froglets. theres still a lot of visible tadpoles, and many have back legs now.

newt larvae update. the 4 gc newtlings (from my own pond) are thriving, about 6 cm long now and right little monsters lol. i have them in a nice little setup on the windowsill, with hornwort and frogbit plants. im not happy putting them in pond yet, with those f'ing diving beetle larvae


Attachments:
p1010439.JPG
p1010439.JPG [ 601.66 KiB | Viewed 321 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Last edited by agrius on Wed May 31, 2017 1:50 pm, edited 2 times in total.
Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Wed May 31, 2017 1:46 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
just observed approx 30 pairs of damselfly laying eggs, many in groups ! these on new zealand pygmyweed, an invasive species.

Attachment:
P1010447.JPG
P1010447.JPG [ 448.04 KiB | Viewed 317 times ]


eggs of gc newt, on water soldier

Attachment:
P1010449.JPG
P1010449.JPG [ 662.1 KiB | Viewed 317 times ]


amphibious bistort. a nice native plant with floating leaves. quite slow establishing and growing but doesnt swamp the pond or get destroyed by snails. i definitely recommend this plant in a wildlife pond if you can get it.

Attachment:
P1010452.JPG
P1010452.JPG [ 677.74 KiB | Viewed 317 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Fri Jun 02, 2017 9:41 am 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
What do you feed the gc newt larvae? Just daphnia?


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Fri Jun 02, 2017 11:41 am 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
At first they eat tiny swimming creatures, cyclops and things. And i guess till they get quite big its their main food source because they seem to stay floating in mid water where the little plankton animals live. I dont think smooth newt larvae float about in the open like this. When they grow bigger they can take small larvae and worms too which makes feeding them easier if you can find small enough worms. Hatchling worms are fairly easy to find in compost. Sunlight and tweezers helps. Im feeding these big larve now on bigger worms cut in half or quarters. I dont really like doing this as its a bit cruel. Id prefer to feed them on whole worms but appropriate sized small ones about 2cm long are very hard to find.

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sat Jun 03, 2017 6:51 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
found another dragonfly wing, quite along way from pond :(


Attachments:
P1010444.JPG
P1010444.JPG [ 225.1 KiB | Viewed 284 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.
Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sat Jun 03, 2017 6:54 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
diving beetle larvae molting and another tadpole not fast enough.


Attachments:
P1010440.JPG
P1010440.JPG [ 139.11 KiB | Viewed 284 times ]
P1010441.JPG
P1010441.JPG [ 619.87 KiB | Viewed 284 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.
Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Fri Jun 09, 2017 6:39 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
decided to release the 4 big efts into the pond now they are starting to become baby newts. they still have gills but losing their larvae fins and getting adult markings and warty texture. they also now dont float around like smaller larvae, but walk on the bottom like adults do. their legs are chunky and strong now, not puny like the baby larvae.

Attachment:
P1010441.JPG
P1010441.JPG [ 579.53 KiB | Viewed 237 times ]


found one of the big newt efts in the pond tonight. looking good.

Attachment:
P1010449.JPG
P1010449.JPG [ 725.11 KiB | Viewed 232 times ]


still worrying numbers of diving beetle larvae. i put a dead privet hawk moth in the pond. later on, there were 6 larvae feeding on it. they did not seem to attack each other, or at least they were able to fend off the attack. was hoping the larvae would disappear but another adult female is in the pond. so probably get a new batch of these devils :)

Attachment:
P1010446.JPG
P1010446.JPG [ 668.15 KiB | Viewed 232 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun Jun 11, 2017 7:20 pm 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
incredible photos agrius! absolute carnage...


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Mon Jun 12, 2017 10:41 am 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
thanks will. i just point the camera :)

i dont know why my privet hawks are dying after emerging (it doesnt matter as ive got at least one pairing and so likely over 100 eggs) but at least they are finding a use in the pond as beetle food and if it diverts them from tadpoles its a good thing. there was both an adult and larvae feeding on another moth last night. interesting to see larvae and adult forms together, although im sure they would kill each other if they wernt so able to deflect attack. also i saw a larva leaving the pond to pupate but there are plenty more big ones still yet to bugger off. good news is the great crested newt efts seem fairly immune to the larvae, because they hang around in mid water and can swifly evade capture in any direction. tadpoles tend to stay at the bottom, where vegetation might impede their escape. biggest count so far is 15 visible at once but i expect there are more

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Tue Jun 13, 2017 10:23 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
at last i found a southern hawker nymph, from last summers egg laying females. not surprising as its very small, maybe 2nd or 3rd instar. hope theres hundreds more.

cuuuuuuuuute :)

Attachment:
P1010008.JPG
P1010008.JPG [ 639.27 KiB | Viewed 198 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Fri Jun 16, 2017 1:38 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
had a special visitor today. i should know the species but i dont until i look it up.


Attachments:
P1010003.JPG
P1010003.JPG [ 247.88 KiB | Viewed 176 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.
Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun Jun 25, 2017 11:10 am 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
a few of these little dragonflies have been emerging, although i missed most of them. i think they are common darters, the little red jobs. havnt really spotted any larvae. i think they must have been hiding in the depths of the vegetation zones. the ones ive seen have been in the jaws of the diving beetle larvae.

Attachment:
vf10007.JPG
vf10007.JPG [ 627.31 KiB | Viewed 167 times ]


Attachment:
P1010002.JPG
P1010002.JPG [ 654.32 KiB | Viewed 149 times ]


a southern hawker emerged but i missed it. just the nymphal case to show for it. heres its pic. theres some other cases and a common darter too.

Attachment:
P1010012.JPG
P1010012.JPG [ 397.01 KiB | Viewed 164 times ]

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Wed Jul 19, 2017 11:29 am 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
Pics.......

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sat Aug 05, 2017 1:54 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
went out with the torch last night. there seems to be a few adult great diving beetles now, presumably from the larvae that were in the pond a few weeks ago. all are females though which is a bit strange.

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun Aug 20, 2017 10:45 am 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
Hey agrius, how's it going. My ponds looking lovely, nicely grown plants in 2/3rds of the pond and the remaining 1/3rd at one end is left open with sand on the bottom to encourage other dragonfly species. Pond dipping I find hundreds of newt larvae, hundreds of backswimmers and greater waterboatmen and most satisfyingly, dragon fly nymphs. I have found both hawker and darter/chaser nymphs, small so must have been laid at the start of this summer, and also many damsel fly nymphs. Pictures to follow later this evening!


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun Aug 20, 2017 11:11 am 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
I've watched a female southern hawker fly about the pond. Interestingly she keeps landing on an old, soft log which is about a foot from the edge of the pond and looks like she is trying to lay eggs...? Looking up close she doesn't seem to produce any eggs, but the action certainly looks like it. Perhaps she's practicing or something?


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Sun Aug 20, 2017 12:19 pm 
Offline
Part of the furniture
Part of the furniture
User avatar

Joined: Sun Oct 19, 2008 11:08 am
Posts: 3355
Location: Uk, Midlands
great observation, same here. i just get those southern hawkers too. usually see about 1 per day but could be more as im not often there to see. no brown hawkers or other types. yes they fly about before finding a good spot. often in the wrong place, like yours. if i see one land on the rotting sleepers, a little bit away from my pond. i scare it off so it lands on one of the stumps ive put in the pond. most usually find them ok. they arnt really that afraid of you, and usually come right back. one even landed on my hand lol. you can creep up very close if you move slowly.

you cant see any eggs being laid even when you look very closely. they stick their black, claw like ovipositor in the wood, and must shoot an egg through it really quickly, but you cant actually see it moving through the overipositor. i can see a white thing pulse near the base of the claw, which might be the egg passing through, but its hard to see as its really quick. i think they lay a lot of eggs. i tried to count what looked like successful attempts, and got to 150 before i gave up, but it carried on a long time afterwards.

glad your pond is full of larvae. im also seeing hawker nymphs now, about 1.5cm long. they can really move fast by their jet propulsion, about as fast as a newt. im not sure how numerous, but judging by the few ive spotted when not really looking for them, there are probably hundreds hidden inside the thick weed areas.

what im curious about is how long the eggs take to hatch. only thing ive read is they hatch in the spring. that doesnt sound very likely to me, what with fungus and such in the wood. i reckon they hatch in a couple of weeks. then they can grow a bit before the winter.

look forward to any dragonfly and pond pics. more the merrier

_________________
But in the cosmos there is balm as well as bitterness, and that balm is nepenthe.


Top
 Profile  
 
 Post subject: Re: my new pond project
PostPosted: Mon Aug 21, 2017 7:49 am 
Offline
Really getting into this place
Really getting into this place

Joined: Sun Aug 18, 2013 9:30 pm
Posts: 348
Some pics


Attachments:
IMG_4515.JPG
IMG_4515.JPG [ 1.93 MiB | Viewed 5 times ]
IMG_4514.JPG
IMG_4514.JPG [ 1.57 MiB | Viewed 5 times ]
IMG_4508.JPG
IMG_4508.JPG [ 1.06 MiB | Viewed 5 times ]
IMG_4507.JPG
IMG_4507.JPG [ 1.42 MiB | Viewed 5 times ]
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 92 posts ]  Go to page Previous  1, 2, 3

All times are UTC + 1 hour


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
[ Time : 0.136s | 38 Queries | GZIP : On ]