This is the home page for the Agriculture & Natural Resources Program which is part of the University of Guam Cooperative Extension Service. Recently added content is displayed below to give you an idea of what we are currently working on. Please use the left sidebar to search the site for the information you are looking for. For additional help, you may phone the site administrator, Aubrey Moore, at 1-(671)-735-2086.

UOG Researchers Search for Rare Butterflies and Snails

Please see attached file.

Hawaii on the Lookout for Rhino Beetles

The Hawaii Biodiversity Network has placed an alert of the coconut rhinoceros beetle on its site:


Intel Uses Rhino Beetle in Advertisement

Here's an ad by Intel which claims that a rhino beetle can carry 8 Ultrabook laptop computers on its back:

Intel Rhino

And here are some skepticle comments on the claim:



Solar Energy Data from a Weather Station at the University of Guam's Yigo Agricultural Experiment Station

The attached comma separated data (CSV) files contain daily insolation (solar energy) measured by a solar radiation sensor on Davis Vantage Pro 2 weather station which uploads data to a Weather Underground site, KGUYIGO2, every 5 minutes. The CSV files are generated by an R script which calculates insolation using data harvested from the Weather Underground site (see attached PDF for calculation details and code listing).

Carbon to Soil CIG grant

GCES and the Northern Guam Soil and Water Conservation District work to divert greenwaste from the Northern Hardfill  and convert it to a value added resource to build soil and increase fertility for sustainable food production.

News Article: Giant Spider Traps Brown Treesnake in Web

Thanks to Andrew Gulac for sending me this news article about a golden orb spider ensnaring a brown treesnake in its web and killing it. A video is provided.

Here on Guam, Bjorn Lardner filmed a preying mantis attacking a brown treesnake and published a scientific note on this observation.



KUAM News Story; Nick Delgado interviews Aubrey Moore: "Guam has more spiders then all of CNMI"

Local entomologist Dr. Aubrey Moore says the theory is mass amount of spiders is caused by the brown tree snakes picking off the birds. He told KUAM News ...

Mystery Vine

This is an image of an invasive vine growing in Mongmong. The owner of the land that it is growing on is concerned because this weed is starting to spread. He contacted the Guam Department of Agriculture for advice and was referred to the University of Guam Cooperative Extension Service.

Responding to a request for identification based on the above image, Lauren Gutierrez responded:

"I believe this vine is Tinospora crispa (L.) Hook. f. & Thomson.  I have found this in the Matgue river area also.  Another Tinospora, T. cordifolia was also seen in Toto. T. cordifolia is considered a medicinal plant but where we saw it growing it was very invasive.   We have an endemic Tinospora, but the stem is smooth and is found along western coastlines in Agana thru Asan."

Lauren has a great image of Tinospora crispa forming an impenetrable thicket.

Armed with the scientific name, I was able to search for previous reports of this weed on Guam. My search turned up one of my own blog posts from December 2008:

Antmimicking Spider

This antmimicking spider was dropped of at my office for identification. An interesting feature of his mimick is the extremely reflective patch of white hair on the cephalothorax which makes the spider look like it has a "neck".


Specimen Label

Agat Post Office, Guam
coll. Amelia Uhria 27 SEP 2012

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