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Current Weather: Fair, 86.0°F

ONLINE NEWSLETTER
 
FACT OR FICTION?

The Black-and-Yellow Argiope spider is active at night?

By Elizabeth Bailey

False.

Black-and-Yellow Argiope spiders, argiope aurantia, are known for their detailed webs which give away their daytime activities. These spiders grow to be about an inch and a half in length,   and they sit in the center of their webs. Their webs can be recognized by the zigzag pattern, known as a stabilimentum. The stabilimentum can serve as a warning to birds to not fly through the web (these spiders are not large enough to eat birds) and can camouflage the spider in the center, attracting more prey into the web. How do we know they aren’t nocturnal? Only day-time spiders construct stabilimentum in their webs.





Did You Know…Our Summer Naturalists weave a web of knowledge.


THE ISLAND NATURALIST
Issue #38 / All About Catalina's Spiders

IN THIS ISSUE...


Catalina’s Crabby Invertebrate
Jump Around, Jump Around
Fact or Fiction: Black/Yellow Argiope - nocturnal?
Did You Know…Summer naturalists weave web of knowledge




Photo by Barbara Ezell

A Black-and-Yellow Argiope spider, working on creating its zig-zag stabilimentum, took a break for lunch.

Missed recent issues?
Issue #1 / All About Bison

Issue #2 / All About Birds

Issue #3 / All About Plants
Issue #4 / All About Eagles
Issue #5 / All About Ravens & Crows
Issue #6 / All About Natives & Invasives  
Issue #7 / All About Rain
Issue #8 / All About Bison Roundup
Issue #9 / All About Foxes
Issue #10 / All About Weeds
Issue #11 / All About Eagle Hatchlings
Issue #12 / All About Snakes
Issue #13 / All About Diurnal Raptors
Issue #14 / All About Diurnal Raptors II
Issue #15 / All About Giants & Dwarves
Issue #16 / All About Fire Ecology
Issue #17 / All About Mule Deer
Issue #18 / All About Feral Cats
Issue #19 / All About Acorn Woodpeckers
Issue #20 / All About Tachi the Fox
Issue #21 / All About Observing Nature
Issue #22 / All About Bald Eagle Update
Issue #23 / All About Invasive Plants
Issue #24 / All About Poisonous Plants
Issue #25 / All About the Value of Nature
Issue #26 / All About Edible Invasives
Issue #27 / All About Plants in Summer
Issue #28 / All About Marine Ecosystems
Issue #29 / All About Dominant Rocks
Issue #30 / All About Catalina’s Tongva
Issue #31 / All About Wildlife Fast Facts
Issue #32 / All About Wrigley Memorial
Issue #33 / All About Endemic Species
Issue #34 / All About Conservancy Volunteers
Issue #35 / All About Catalina’s Wildflowers

Issue #36 / All About Catalina’s Migratory Birds
Issue #37 / All About Reptiles & Amphibians

 

 

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