Talk between cormorant and cormorant fishing matser
نویسندگان
چکیده
منابع مشابه
Genetic structure within and between island populations of the flightless cormorant (Phalacrocorax harrisi).
We assessed colony- and island-level genetic differentiation for the flightless cormorant (Phalacrocorax harrisi), an endangered Galápagos endemic that has one of the most limited geographical distributions of any seabird, consisting of only two adjacent islands. We screened 223 individuals from both islands and nine colonies at five microsatellite loci, recovering 23 alleles. We found highly s...
متن کاملIsotopic Discrimination in the Double-Crested Cormorant (Phalacrocorax auritus)
The diet-tissue discrimination factor is the amount by which a consumer's tissue varies isotopically from its diet, and is therefore a key element in models that use stable isotopes to estimate diet composition. In this study we measured discrimination factors in blood (whole blood, red blood cells and plasma), liver, muscle and feathers of Double-crested Cormorants (Phalacrocorax auritus) for ...
متن کاملIn-air hearing of the great cormorant (Phalacrocorax carbo)
Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds were derived using pure tones of five different frequencies. The lowest threshold was at 2 kHz: 1...
متن کاملLethal consequences of ingested foreign material in seabirds.
A pied cormorant (Phalacrocroax varius) was found sleeping on rocks in a coastal region near Adelaide. Examination revealed entanglement by fishing line with superficial wounds to the left leg. The cormorant was also reported to have ingested a number of fishing hooks, however, the exact location of the hooks was not known. In addition, the bird was found to be underweight and shocked. X-ray ex...
متن کاملScreening of protozoan and microsporidian parasites in feces of great cormorant (Phalacrocorax carbo)
The global population of great cormorants (Phalacrocorax carbo L.) is on the rise. These birds, characterized by rapid metabolism, can deposit large quantities of feces, and because they breed on the land but forage on water, both terrestrial and aquatic environments can be simultaneously affected by their activities. The contribution of great cormorants in the dispersal of bacterial and viral ...
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ژورنال
عنوان ژورنال: Japanese Journal of Animal Psychology
سال: 2010
ISSN: 0916-8419,1880-9022
DOI: 10.2502/janip.60.2.7