Sea Lion Spatial Memory Deficits Linked to Domoic Acid Lesions

A large sample of wild sea lions reveals spatial memory deficits predicted by the extent of right dorsal hippocampal lesions from natural domoic acid exposure. The data connects toxin exposure to disrupted hippocampal-thalamic brain networks in Zalophus californianus. This behavioral and neurological dataset provides evidence for how algal toxins may affect survival in wild marine mammals.

Use Cases

• Analyze the correlation between spatial memory deficit scores and the extent of right dorsal hippocampal lesions in sea lions.
• Model the impact of domoic acid toxicosis on hippocampal-thalamic network connectivity metrics.
• Investigate behavioral survival implications by linking lesion data from natural exposure to foraging navigation challenges.

Strengths

• Data originates from a published scientific study on a significant environmental health issue.
• Focuses on a large sample of wild sea lions, providing ecological relevance.
• Examines a specific neuroanatomical region (right dorsal hippocampus) and its connectivity.

Limitations

• Specific data structure, column names, and sample size are not provided in the input.
• The dataset appears focused on a specific pathology, limiting generalizability to other species or toxins.
• Temporal and precise geographic coverage of the wild sea lion sample is unknown.

Provenance

Source

Dryad digital repository.

Collection Method

Collected from a large sample of wild California sea lions (Zalophus californianus), likely involving behavioral tests and neurological assessments.

Freshness

Last updated in June 2020.

Geography

Presumably coastal regions where California sea lions are found, but specific locations are not stated.