Trophic interactions between the Kelp Gull (Larus dominicanus) and Royal and Cayenne terns (Thalasseus maximus maximus and Thalasseus sandvicensis eurygnathus, respectively) in a human-modified environment

Canadian Journal of Zoology, e-First Articles. Many closely related seabirds nest in mixed colonies, and this association may result in interspecific interactions such as competition for common resources and kleptoparasitism. Trophic interactions were evaluated between the Kelp Gull (Larus dominicanus Lichtenstein, 1823) and Royal and Cayenne terns (Thalasseus maximus maximus (Boddaert, 1783) and Thalasseus sandvicensis eurygnathus (Saunders, 1876), respectively) nesting at a mixed-species colony in an area with high availability of recreational fishery waste for the opportunistic Kelp Gull. Diet analyses were based on gull chick stomach content samples and direct observations of food delivered to tern chicks in 2013 and 2014, complemented in 2014 with carbon and nitrogen stable isotope analysis of chick whole-blood samples. Main prey species of Kelp Gull chicks were Cynoscion guatucupa (Cuvier, 1830), a demersal species obtained from recreational fishery waste, Argentine anchovies (Engraulis anchoita Hubbs and Marini, 1935), and insects. Engraulis anchoita and Odontesthes spp. were the main prey of both tern species. Trophic niche and isotopic niche overlap between the Kelp Gull and Royal and Cayenne terns was low. Kelp Gull kleptoparasitism on Royal and Cayenne terns was ≤2.5% and
Source: Canadian Journal of Zoology - Category: Zoology Authors: Source Type: research

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ConclusionSubstantial agreement exists among experts regarding many strong recommendations for the improvement of practice concerning the use of muscle relaxants and reversal agents during anaesthesia. In particular, the French Society of Anaesthesia and Intensive Care (SFAR) recommends the use of a device to monitor neuromuscular blockade throughout anaesthesia.
Source: Anaesthesia, Critical Care and Pain Medicine - Category: Anesthesiology Source Type: research
Publication date: January 2020Source: Anaesthesia &Intensive Care Medicine, Volume 21, Issue 1Author(s):
Source: Anaesthesia and intensive care medicine - Category: Anesthesiology Source Type: research
Publication date: January 2020Source: Anaesthesia &Intensive Care Medicine, Volume 21, Issue 1Author(s):
Source: Anaesthesia and intensive care medicine - Category: Anesthesiology Source Type: research
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Source: Human Vaccines and Immunotherapeutics - Category: Allergy & Immunology Authors: Source Type: research
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