We examined egg sac characteristics and oviposition sites of Metepeira calamuchita (Piel, 2001) (Araneidae) at two different habitat types, creosote bush scrub and Prosopis spp. forest patches, at the Ñacuñan Biosphere Reserve located in the Monte Desert of Mendoza, Argentina. At each site, we manually collected egg sacs of M. calamuchita between November and April. We recorded egg sac location, presence of detritus on the egg sac and its colouration. At scrub sites, there was a greater number of egg sacs anchored to the vegetation, while in forest sites most egg sacs were suspended by web threads. In addition, more egg sacs covered with detritus were found at scrub sites, but we did not find an association between egg sac colouration (brown/dark brown) and habitat type. Location of the egg sac and presence of detritus could function as defence strategies in environments with different pressures of egg sac predators and parasitoids.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 18 • No. 8