What does instar mean?

[Stan Schultz]

the time between each molt lke 1st instar would be between the first and 2nd molt

Technically, it isn't the time, it's a stage in their growth cycle.

"In many arthropods (e.g., crustaceans and insects) the form and lifestyle of immature individuals changes with each molt as their growth and development proceeds. Each stage has specific characteristics not present or applicable to those preceding it, and often following it. In addition, in these creatures, the number of molts between hatching and sexual maturity or completion of growth is often fixed.

In an effort to uniquely characterize each interval in the arthropod's life cycle, biologists have adopted the practice of referring to each step or stage between molts as an 'instar.' An instar is defined as the stage or state of development between molts (Barnes 1980) or an intermolt stage in the development of an arthropod (Lincoln and Boxshall 1987). Sometimes biologists use the terms 'stage', or 'stadium' to mean approximately the same as instar. And, many biologists use instar to refer to the creature itself in a particular phase of development, e.g., 'The fifth instar only has three pairs of legs...' " (The Tarantula Keeper's Guide, 3rd Edition - in preparation)

(Now that was sneaky, wasn't it? )

Enjoy all 57 instars of your tarantula!

 

[Anastasia]

Technically, it isn't the time, it's a stage in their growth cycle.

"In many arthropods (e.g., crustaceans and insects) the form and lifestyle of immature individuals changes with each molt as their growth and development proceeds. Each stage has specific characteristics not present or applicable to those preceding it, and often following it. In addition, in these creatures, the number of molts between hatching and sexual maturity or completion of growth is often fixed.

In an effort to uniquely characterize each interval in the arthropod's life cycle, biologists have adopted the practice of referring to each step or stage between molts as an 'instar.' An instar is defined as the stage or state of development between molts (Barnes 1980) or an intermolt stage in the development of an arthropod (Lincoln and Boxshall 1987). Sometimes biologists use the terms 'stage', or 'stadium' to mean approximately the same as instar. And, many biologists use instar to refer to the creature itself in a particular phase of development, e.g., 'The fifth instar only has three pairs of legs...' " (The Tarantula Keeper's Guide, 3rd Edition - in preparation)

(Now that was sneaky, wasn't it? )

Enjoy all 57 instars of your tarantula!

very sneaky , but very good
I always knew Canuks are smart peeps

 

[Stan Schultz]

In the defense of Europeans, Canadians do it too(and I meant the guys, on a woman it's a bikini bottom)

The overwhelming majority of us do not. However, it's not too remarkable to see a guy in walking shorts, down parka, sandals and wool socks in February! I've never quite gotten over that, even though I've lived in Canada for better than 2 decades!

Not only that, last July when the temperature in Calgary topped 90° F some Canadian dude was seen playing volley ball in a city park in a red thong!

Enjoy your Canadian, Spandex tarantula!

 

[Jmugleston]

Just a side note on borrowed terminology.

Some of the arachnid publications will borrow terms from entomology to draw a connection with processes or body parts that are present in spiders. Nymphs though incorrect is used occasionally as is cephalothorax and abdomen. Again, not correct, but frequently seen in publications and in these forums. (especially the cephalothorax and abdomen). Technically doesn't work with spider anatomy, but what can you do?

 

[AubZ]

I never got over the socks and sandals either. Just wierd to me.

 

[butch4skin]

Is it socks with open toe sandals or the ones with the plastic piece that fits between toes 1 and 2?

 

[AubZ]

Mainly Sandel 1 (open toe) But I've seen both being worn with socks. Don't ask me how sandel 2 even works with a sock. Mwahahaha.

 

[butch4skin]

Mainly Sandel 1 (open toe) But I've seen both being worn with socks. Don't ask me how sandel 2 even works with a sock. Mwahahaha.

Yeah, I don't get it either, makes no sense.

 

[P. Novak]

Wow, where has this topic gone...:wall:

 

[AubZ]

Would it help if the sandels in question had stars on them?? Or maybe the socks?

 

[Stan Schultz]

Is it socks with open toe sandals or the ones with the plastic piece that fits between toes 1 and 2?

Usual open toed, sometimes both.

 

[butch4skin]

Usual open toed, sometimes both.

sickness







.

 

[Timmee81]

also, a lot of ppl misuse "instar" in a sort of synonymy with spiderling... which drives me nuts. as said before, all it means is the time between molts

Sorry I probably sound really stupid but I've just purchased two 2nd instar. T's so this means they're between their second and third moult. Correct? Yes or no is sufficient answer

 

[EulersK]

Necromancy must be in style right now...

Yes. The answer is yes.

 

[Toxoderidae]

Bunch of people've been playing skyrim, Necromancers in training!

 

[tonypace2009]

Sorry I probably sound really stupid but I've just purchased two 2nd instar. T's so this means they're between their second and third moult. Correct? Yes or no is sufficient answer

Yes

 

[Toxoderidae]

Honestly necro'd threads should be removed at this point, especially 10 year old ones.

 

[cold blood]

Not if there is still validity to the question and the answers given....I recently had a member message me with the same question.

 

[Haksilence]

Threads more than 2 years old without a new post should be archived, mod locked to prevent revival lol.

 

[Chris LXXIX]

Stop the hate against zombie threads, they are awesome