seasonal observation period cycle sampling

The gap

Supporting evidence — 5 representative gaps

• Formulation & Evaluation of Herbal Fairness Cream Using Beetroot and Rose Flower (2026) · doi

  The irritancy test was limited to a small area and short observation period; comprehensive dermatological testing including patch tests, repeated insult patch tests (RIPT), and testing on diverse skin types would strengthen safety validation.

  Keywords: testing patch tests irritancy test limited small area short observation period comprehensive dermatological including repeated
• When Sea Urchins Dine: The Roles of Friends, Food and Fear and Implications to Kelp Forest Conservation (2026) · doi

  While the drift-grazer cycle has been identified as critical in maintaining urchin barrens, the relative contribution of drifting kelp versus live kelp to population persistence across different ecological contexts and seasonal conditions needs further quantification.

  Keywords: kelp drift grazer cycle identified critical maintaining urchin barrens relative contribution drifting versus live population
• Risk assessment of potentially toxic elements in water, sediment, aquatic mussels, and edible crops from a gold-mining-stressed river in Northern Nigeria (2026) · doi

  The sampling covered only the peak dry season (January–March), so the results do not show seasonal variation, and future studies on wet-season sampling may differ from currently reported findings.

  Keywords: sampling season covered peak january march show seasonal variation future differ currently reported
• Detection of Estrus in Dairy Cows: A Proof-of-Concept Near-Infrared Milk Sensing and Machine-Learning Study (2026) · doi

  The observation period covered only one 21-day cycle per cow, so seasonal and longer-term effects could not be assessed.

  Keywords: observation period covered cycle seasonal longer term effects assessed
• A new treefrog of the genus Charadrahyla (Anura, Hylidae) from Oaxaca, Mexico, with comments on the conservation status and distribution of related species (2026) · doi

  A later visit to the area during the rainy season (August) did not produce any individuals in the same streams where they were observed in March, indicating a need for seasonal sampling protocols to better understand population dynamics.

  Keywords: later visit area rainy season august produce individuals streams observed march indicating need seasonal sampling