You'll need to search the scholarly literature to find sources to cite in your lab report, but more importantly, you'll need to find the RIGHT articles to cite. You aren't trying to find just any old article about leaf litter or soil organisms, and your goal is not to write the whole report and then find some citations to plonk down on top...you're trying to find and read articles that will help you understand and contextualize the information that you're writing up in your report. 

Soil Food Web, from the Soil Biology Primer by the USDA Natural Resources Conservation Service

There are several ways to get help with your research! 

• Ask Pavel! You can email me or use this link to schedule an appointment. 
• Need help right now? Activate the 'Chat with a Collins Librarian' button to be connected with a librarian. If we're not available, we'll get back to you as soon as possible.