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Figure 1 in Dong et al. (2025): "Overview of the temperature regimes applied to eggs (A) and spiderlings (B) of Steotoda grossa. Two types of thermal exposure were applied: fixed thermal stress and simulated heatwave conditions. Temperature regimes are based on summer temperatures in the Netherlands (KNMI): 22 °C (blue lines) is the average maximum temperature, 27 °C (orange) during the day is classified as a ‘summer’ day and 32 °C (red) as ‘tropical’. The standard simulated heatwave consisted of 3 days exposure to 27 °C, followed by 5 days at 32 °C. Spiderling (B) were also exposed to extended heatwave conditions (i.e., 10 days at 27 °C and 10 days at 32 °C), as well as repeated standard and extended heatwaves both with 10 days interval between heatwaves. All treatments shown represent day temperatures. Night temperatures were 10 °C lower."

Figure 1 in Dong et al. (2025): "Overview of the temperature regimes applied to eggs (A) and spiderlings (B) of Steotoda grossa. Two types of thermal exposure were applied: fixed thermal stress and simulated heatwave conditions. Temperature regimes are based on summer temperatures in the Netherlands (KNMI): 22 °C (blue lines) is the average maximum temperature, 27 °C (orange) during the day is classified as a ‘summer’ day and 32 °C (red) as ‘tropical’. The standard simulated heatwave consisted of 3 days exposure to 27 °C, followed by 5 days at 32 °C. Spiderling (B) were also exposed to extended heatwave conditions (i.e., 10 days at 27 °C and 10 days at 32 °C), as well as repeated standard and extended heatwaves both with 10 days interval between heatwaves. All treatments shown represent day temperatures. Night temperatures were 10 °C lower."

New publication: Exposure to high temperatures is fatal for eggs and suppresses growth in a false widow #spider, by @melissahrowe.bsky.social and others. #climatechange #thermalstress #Steatodagrossa

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100% guaranteed to have one in your house right now.

Carved pumpkin, 2019

#steatodagrossa #carved #pumpkin #art #artist #darkart #ephemeralart #cupboardspider #creepy

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Copulation interruption decreases female reproductive success in a false widow spider - Behavioral Ecology and Sociobiology Copulation is essential for transferring sperm from males to females in most animals. During copulation, males and females are often static and thus prone to predation or other threats. Its duration s...

New publication: Copulation interruption decreases female reproductive success in a false widow spider, by @jeffharvey.bsky.social @melissahrowe.bsky.social
#reproduction #copulationduration #eggsac #offspring #steatodagrossa #theridiidae
doi.org/10.1007/s002...

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New NIOO publication: The role of male body #size in mating success and male–male competition in a false widow #spider, by @Jeffrey75327765 and others. #copulationduration #reproduction #theridiidae #steatodagrossa #sexualselection
https://doi.org/10.1016/j.anbehav.2023.09.011

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New NIOO publication: Sibling #cannibalism in the #falsewidowspider is dependent on spiderling density and the reliable availability of fresh #prey, by @Jeffrey75327765 and others. #competition #starvation #steatodagrossa #agonisticinteractions
https://doi.org/10.1111/eth.13399

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