Search results in QuickSearch will provide links to ScienceDirect using 4 different collection names. Here is an example from Animal Behavior:

Science Direct (4 holding collection names and what they mean):
1. ScienceDirect Core Titles (SUNY NZ) (248 titles)
Current contract. Includes content 2016-present (including perpetual access rights)
2. Sciencedirect PTA (SLSS) (1144 titles)
Past contract that included perpetual access for content published ~2010-2019. PTA=Post Termination Access.
3. Elsevier ScienceDirect Open Access Journals (887 titles)
Freely available
4. Elsevier ScienceDirect Journals Complete (2421 titles)
This collection represents holdings from our previous license agreements. The holdings are being automatically uploaded by Elsevier based on what they think we should have. It should be accurate, but it is not. Every campus has unique entitlements based on the early license agreements which were partly determined by print holdings. We do not have a comprehensive list of title holdings. We will be reviewing these titles over the summer and adjusting our QuickSearch holdings, so some access may be discontinued as we figure out our entitlements.