Lesser Black-backed Gull (Larus fuscus) Science Article 2 abstract Empirical evidence is growing that the offspring sex ratio in birds can be biased in relation to the body condition of parents during breeding. The sex ratio bias may come about because (1) the actual production of the two sexes may be skewed and/or (2) there […]
Category: Charadriiformes
The nominate Lesser Black-backed Gull Larus fuscus fuscus, a gull with a tern-like feeding biology, and its recent decrease in northern Norway.
Lesser Black-backed Gull (Larus fuscus) Science Article 3 abstract In northern Norway, Larus fuscus fuscus feeds mainly offshore on the wing on pelagic fish and fishery discards. It avoids competition with other large gulls for concentrated stationary food sources such as garbage dumps and fish-factories. It is also inferior to the Herring Gull L. argentatus […]
Effects of vegetation on nest microclimate and breeding performanceof lesser black-backed gulls ( Larus fuscus)
Lesser Black-backed Gull (Larus fuscus) Science Article 1 abstract For birds that breed in large colonies, the overall area occupied by the colony generally comprises several sub-areas that di.er in physical and social features such as vegetation and breeding density. Birds arriving at a breeding colony select their nesting sites through a hierarchical process of […]
The Influence of Body Condition on the Stopover Ecology of LeastSandpipers in the Lower Mississippi Alluvial Valley during FallMigration
Least Sandpiper (Calidris minutilla) Science Article 3 abstract Many shorebirds are long-distance migrants and depend on the energy gained at stopoversites to complete migration. Competing hypotheses have described strategies used by migrating birds; the energy-selection hypothesis predicts that shorebirds attempt to maximize energy gained at stopover sites, whereas the time-selection hypothesis predicts that shorebirds attempt […]
LONGEVITY RECORD FOR THE LEAST SANDPIPER: A REVISION
Least Sandpiper (Calidris minutilla) Science Article 2 abstract A male Least Sandpiper (Calidris minutilla) bred at 16+ yr of age, not 17+ as previously reported (Miller and Reid, J. Field Ornithol.5 8:49-51, 1987). Extensive European banding programs have revealed much older scolopacids. E. H. MILLER, J. Field Ornithol., 59(4):403-404 Download article download full text (pdf)
Functional association of bill morphology and foragingbehaviour in calidrid sandpipers
Least Sandpiper (Calidris minutilla) Science Article 4 abstract Foraging behaviour in birds co-varies with bill morphology. Shorebirds exhibit pronouncedinter- and intra-specific variation in bill length and shape as well as in foraging behaviour.Pecking, or feeding on epifaunal intertidal invertebrates, is associated with a straight bill, while probing,feeding on infaunal prey S. NEBEL et al, University […]
REPRODUCTIVE SUCCESS OF THE INTERIOR LEAST TERN(STERNA ANTILLARUM) IN RELATION TO HYDROLOGY ON THELOWER MISSISSIPPI RIVER
Least Tern (Sternula antillarum) Science Article 3 abstract The annual hydrograph of large rivers, including flood pulses and low-flow periods, is believed to play a primary rolein the productivity of biota associated with these ecosystems. We investigated the relationship between riverhydrology and Interior least tern (Sterna antillarum) reproductive success on the Lower Mississippi River from […]
Genetic Variation among Subspecies of Least Tern(Sterna antillarum): Implications for Conservation
Least Tern (Sternula antillarum) Science Article 2 abstract DNA sequence variation from two nuclear introns and part of the mitochondrial cytochromebgenewere used to evaluate population structure among three subspecies of Least Tern that nest in the United States (California[Sterna antillarum browni], Interior [S. a. athalassos], Eastern [S. a. antillarum]). Sequence variation was highestfor nuclear intron […]
Evidence for Reproductive Mixing of Least Tern Populations
Least Tern (Sternula antillarum) Science Article 4 abstract The Atlantic race of the Least Tern (Sterna antillarum antillarum) breeds along the coastal beaches and bay systems of the Atlantic Ocean and Gulf of Mexico from Maine to southern Texas, while the Interior Least Tern (S. a. athalassos) breeds in the interior of the United States […]
NOCTURNAL PREDATIONOF CALIFORNIA LEAST TERNS AT A SOUTHERN CALIFORNIA LEAST TERN
Least Tern (Sternula antillarum) Science Article 5 abstract Predation is difficult to observe and quantification of impacts have consequentlybeen difficult, especially for predators active at night. Using night-capable camerasplaced throughout a California least tern (Sternula antillarum browni) colony I examinedrates of predation by a complex of potential predators. I identified and quantified directand indirect effects […]