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Viburnum lesquereuxii leaf with insect damage; Dakota Sandstone (Cretaceous) of Ellsworth County, Kansas. Scale bar is 10 mm. Knowledge of herbivory in geological time comes from three sources: fossilized plants, which may preserve evidence of defense (such as spines) or herbivory-related damage; the observation of plant debris in fossilised animal feces; and the structure of herbivore mouthparts.
The temperature at which an insect spontaneously freezes is referred to as the supercooling point (SCP). For freeze-avoidant insects, the SCP is thought to be equivalent to the lower lethal temperature (LLT) of the organism. [11] The freezing process is usually initiated extracellularly in the gut, tissues, or hemolymph. In order to supercool ...
A cryoprotectant is a substance used to protect biological tissue from freezing damage (i.e. that due to ice formation). Arctic and Antarctic insects, fish and amphibians create cryoprotectants (antifreeze compounds and antifreeze proteins) in their bodies to minimize freezing damage during cold winter periods. Cryoprotectants are also used to ...
Here's how to protect plants from snow and freezing temps this weekend. It's the start of spring, but winter is sticking around. Here's how to protect plants from snow and freezing temps this weekend.
The cold temperatures will bring widespread frost mainly after 3 p.m., according to NWS. Patchy fog could descend before 11 a.m. Saturday and will dissipate as temperatures are expected to rise to ...
Spring weather in Rhode Island can be tricky. And cruel. A freeze watch will be in effect tonight Wednesday, April 24, as cold temperatures move in. Meteorologist Kristie Smith of the National ...