Amazing video and construction for web environment. As an entomologist and Latrodectus enthusiast, may i ask how this spider was originally sourced? After a long time living in America, I came to Germany(outside med. Black widow range) for work and now am transferring to the Romanian coastline(within its range). I will be seeking out and rearing my own specimens if possible.
Spiders can climb on wooden sticks, so they connect the entire structure. Recently, we are using a metal construction, as wood sometimes gets moldy. We now connect metal screws with rubber bands, so spiders can crawl across and connect the first threads. After that it's easy for them.
We tested for consistent individual differences in how aggressive females are towards prey. The goal was to test for "personalities" in this kind of aggressiveness, and whether this affects sexual cannibalism. :)
@@Carniolan Yes, we're a Slovenia based lab, with researchers from ZRC SAZU and NIB. We'll be writing about our findings on sexual cannibalism soonish (and with more videos)...it's a student's MSc thesis. But to answer you question...personalities are tested among individuals of the same population/species, and to be called like that have to be consistent among these individuals. There are several hypotheses about sexual cannibalism, one of which predicts that some females are simply too aggressive and this aggressiveness spill over from the preying into the mating context. We fail to find support for this hypothesis. :)
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Amazing video and construction for web environment. As an entomologist and Latrodectus enthusiast, may i ask how this spider was originally sourced?
After a long time living in America, I came to Germany(outside med. Black widow range) for work and now am transferring to the Romanian coastline(within its range). I will be seeking out and rearing my own specimens if possible.
what a beautiful animal, and look how quick it reacted to the larva touching its net !
How did you have the spider only use the sticks for its web
Spiders can climb on wooden sticks, so they connect the entire structure. Recently, we are using a metal construction, as wood sometimes gets moldy. We now connect metal screws with rubber bands, so spiders can crawl across and connect the first threads. After that it's easy for them.
what is a voracity test
We tested for consistent individual differences in how aggressive females are towards prey. The goal was to test for "personalities" in this kind of aggressiveness, and whether this affects sexual cannibalism. :)
Interesting, never heard of such experiment. Aggressive within the same species or different ones? Also are you from Slovenia? I live there :D
@@Carniolan Yes, we're a Slovenia based lab, with researchers from ZRC SAZU and NIB. We'll be writing about our findings on sexual cannibalism soonish (and with more videos)...it's a student's MSc thesis. But to answer you question...personalities are tested among individuals of the same population/species, and to be called like that have to be consistent among these individuals. There are several hypotheses about sexual cannibalism, one of which predicts that some females are simply too aggressive and this aggressiveness spill over from the preying into the mating context. We fail to find support for this hypothesis. :)
Why did god create such a horror of a spider? And with powerfull venom.
first spider saved alot of life ,secondly they help us live healthy by eating unhealthy insects and they bite humans only if we disturb them.
Ewww that thing is nasty dude..
Youre a nastier thing
The most beautiful in nature is the most deadly