منابع مشابه
Rapidly increasing methyl mercury in endangered ivory gull (Pagophila eburnea) feathers over a 130 year record.
Mercury (Hg) is increasing in marine food webs, especially at high latitudes. The bioaccumulation and biomagnification of methyl mercury (MeHg) has serious effects on wildlife, and is most evident in apex predators. The MeHg body burden in birds is the balance of ingestion and excretion, and MeHg in feathers is an effective indicator of overall MeHg burden. Ivory gulls (Pagophila eburnea), whic...
متن کاملConservation genetics of high-arctic Gull species at risk: I. Diversity in the mtDNA control region of circumpolar populations of the Endangered Ivory Gull (Pagophila eburnea).
The high-arctic Ivory Gull (Pagophila eburnea) has recently undergone a sharp decline in numbers, and in Canada it is listed as "Endangered" under the Species-At-Risk Act. To test for circumpolar genetic distinctiveness, we examined 264 bp of the mtDNA Control Region Domain I from 127 museum specimens collected during the breeding season from northern Canada, Greenland, and Norway, and during t...
متن کاملDescription of microsatellite markers and genotyping performances using feathers and buccal swabs for the Ivory gull (Pagophila eburnea).
We report 22 new polymorphic microsatellites for the Ivory gull (Pagophila eburnea), and we describe how they can be efficiently co-amplified using multiplexed polymerase chain reactions. In addition, we report DNA concentration, amplification success, rates of genotyping errors and the number of genotyping repetitions required to obtain reliable data with three types of noninvasive or nondestr...
متن کاملSTATISTICAL INTERACTION REVISITED Regina
To have valid meaning, "statistical interaction" must be consistent with biological or physical interaction which is defined as mutual (dependent) action of factors contributing to the response effect. In mathematical and statistical response models the parameter representing interaction depends on the model concerned. Factorial experiments, discrete response, and regression models are discusse...
متن کاملRegina Lectures on Fat Points
Let K be an algebraically closed field. For n ≥ 0, let An denote Kn, and let A = K[An] denote K[X1, . . . , Xn]. We refer to An as affine n-space. For any subset S ⊆ An, let I(S) ⊆ A denote the ideal of all polynomials that vanish on S. (For those familiar with Spec, the affine scheme associated to S is Spec(A/I(S)). Note that any ideal I ⊆ A defines an affine subscheme of Spec(A), and ideals I...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1989
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay5055