The venom of the world’s deadliest spider can vary depending on conditions

SHAFAQNA Türkiye– An Australian study found that the proportion of chemicals in funnel-web spider venom can vary depending on conditions.

According to Sciencealert, a biologist at James Cook University Linda Hernandez Duran and his team experimented with four subspecies of funnel-web spiders to see if spider venom depends on behavior, physical conditions and environment.

Duran, “To determine the metabolic rate of the spiders, the researchers mapped their behavior and calculated their heart rate. We then collected their venom and analyzed them with a spectrometer.” said.

Three types of behavior have been studied.

While there are over 40 funnel spider subspecies that are among the deadliest of their kind in the world, the behavior of the Border Ranges, Defiant Hills, South Tree Dwelling, and Sydney subspecies have been examined.

In the first test, predatory spiders were examined by blowing air or poking them with tweezers, and in the second test, the animals were paired with another spider of the same species. In the third test, the spiders were observed to explore new territory.

“The chemical ratios of the poison vary”

While there was no correlation between the behavior, heart rate, and venom composition of the three spiders, “borderline ridge” species were found to have higher heart rates and be more defensive. As a result of a study published in the journal PLOS ONE, it was stated that the venom production and aggressive movements of this species cause metabolic changes, while it was noted that funnel-web spiders can balance these changes and increase the speed of their metabolism to produce venom and move more slowly, when you are threatened.

Hernandez Duran said that the chemical ratios in spider venom can vary depending on behavioral patterns and physiological variables. “We have obtained valuable information for studying and understanding the ecological role of the poison.” used phrases.

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