Possible Sighting of Eskimo Curlews (Numenius Borealis)
نویسندگان
چکیده
منابع مشابه
A relationship between prey density and territory size in non-breeding Eastern Curlews Numenius madagascariensis
Two hypotheses have been proposed to explain the variation in territory size observed within populations. Hypothesis I assumes that individuals can assess the local food density; territory size is then determined by the amount of food contained within the territory (Norman & Jones 1984, McFarland 1986). Under Hypothesis II, an animal defends as large an area as possible and the size of the terr...
متن کاملIdentifying anomalous reports of putatively extinct species and why it matters.
As species become very rare and approach extinction, purported sightings can stir controversy, especially when scarce management resources are at stake. We used quantitative methods to identify reports that do not fit prior sighting patterns. We also examined the effects of including records that meet different evidentiary standards on quantitative extinction assessments for four charismatic bi...
متن کاملNonbreeding eastern curlews Numenius madagascariensis do not increase the rate of intake or digestive efficiency before long-distance migration because of an apparent digestive constraint.
The possibility of premigratory modulation in gastric digestive performance was investigated in a long-distance migrant, the eastern curlew (Numenius madagascariensis), in eastern Australia. The rate of intake in the curlews was limited by the rate of digestion but not by food availability. It was hypothesized that before migration, eastern curlews would meet the increased energy demand by incr...
متن کاملPossible origin of Clostridium botulinum contamination of Eskimo foods in northwestern Alaska.
Soils from beaches in northwestern Alaska have been found to contain Clostridium botulinum type E, providing evidence of one environmental source of food contamination.
متن کاملCold Acclimatization in Eskimo
0 N EXPOSURE to cold the body has a complicated physiological problem to solve. There is a limit to the heat it can produce to provide for an increased heat loss and during exposure of much severity a heat deficit is incurred. While peripheral tissues are cooling, the central body temperature must be kept within a very narrow range if the function of vital organs is to be maintained. If the acc...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1996
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay5479