. . . . . . . . . . "trophic level" . "nitrogen-15" . "Cristina Di Muri" . "2026-02-01T14:12:51.000Z"^^ . . . . . . . "AIDA sentence: δ15N values increase predictably with trophic level due to preferential excretion of lighter nitroge..." . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyuQ7Hi/zQ7hDZtMtLWK1JKU83Kgo8NqC+b8sxD5IoiekPctXVA8iM0zD/9pcp1txGXjX/fUj5HRUkOn4RVHP3fFa/3irQYpZFQ5fHRj8MQ7kJ6AEd1oggfajDevZGz63hj6Vigo+BNYBXqhcbWVAfLfbzQPAegce9zH6n9vTqKYMrwrSxPQdhoAcoaKOqY8gRiJgzekeEr+iEqa63X1HwWtYDs7X25a9xWbgaDSsRjzZGVUVOn1vYdSfWAaIw+EB9CiJfKm1zuXcur5PDziMW1pnZG6/NQtrA7AM3gLnoSoU3glkm5UhksGNqu2SV+j8oZLg7v6C5/sg2f6LIJMeFwIDAQAB" . "qsEdT9GONJf7DTZXE1srMQdy+zZZzPjKVSkbyJCFuadPgum4sGLnZgmVRPhK1xcufhRQc6MIWScPEU+ubCL7FQ+4C0QN8Yv+sl9Zlq//ytbw9LO+brfS1aQldX0W4fDAVSsy6+457I3ytI2PAcCtoaKwzy72gupclr3mNkrriolqJ51i56YABgwt2YgURjLepWuY16sRUIIJkoikhP6W4hniN8W3qogdNFM0J7X913IoI1vAdUV+9iRAK8jmB83yntVz1bmrK2EL9oSDmPoNNkqRHnN9KlG6WEviTnp7ODc6hYDmwttSzWnTbL1vumcntnNMB4N7VXdHkEUNd4gXQQ==" . . .