Food chain, parasites and climate changes in the high Arctic: a case study on trophically transmitted parasites of common eider Somateria mollissima at Franz Josef Land

Polar Biology ◽  
2021 ◽  
Author(s):  
Kirill V. Galaktionov ◽  
Jan Marcin Węsławski ◽  
Lech Stempniewicz
Keyword(s):  
Food Chain ◽  
Climate Changes ◽  
High Arctic ◽  
Common Eider ◽  
Somateria Mollissima ◽  
Franz Josef Land ◽  
Trophically Transmitted Parasites

Effects of clutch sizes and incubation stage on nest desertion in the female Common Eider Somateria mollissima nesting in the high Arctic

Polar Biology ◽  
2005 ◽  
Vol 29 (5) ◽  
pp. 358-363 ◽  
Author(s):  
Sophie Bourgeon ◽  
François Criscuolo ◽  
Fabrice Bertile ◽  
Thierry Raclot ◽  
Geir Wing Gabrielsen ◽  
...  
Keyword(s):  
High Arctic ◽  
Common Eider ◽  
Somateria Mollissima ◽  
Incubation Stage ◽  
Nest Desertion

Patterns of intraspecific nest parasitism in the High Arctic common eider (Somateria mollissima borealis)

1994 ◽  
Vol 72 (6) ◽  
pp. 1027-1034 ◽  
Author(s):  
Tor Harry Bjørn ◽  
Kjell Einar Erikstad
Keyword(s):  
Reproductive Effort ◽  
High Arctic ◽  
Common Eider ◽  
Breeding Period ◽  
Somateria Mollissima ◽  
Nest Parasitism ◽  
Nest Sites ◽  
Egg Parasitism ◽  
Intraspecific Nest Parasitism ◽  
Breeding Seasons

Intraspecific nest parasitism was studied during two breeding seasons at two common eider (Somateria mollissima borealis) colonies in Kongsfjord, Svalbard (79°55′N, 12°10′E). The density of breeding eiders differed considerably from year to year and also among colonies. Parasitic eggs were identified through deviations from a normal laying pattern. Parasitic eggs (8%) were laid in 16% of the clutches at the dense colony. The corresponding values on the island with low breeding density were 1.6 and 2% in 1989 and 1990, respectively. Parasitic eggs were laid in clutches of all sizes according to their availability. The parasitizing females laid 70% of their eggs during the host's laying period. Parasitic laying occurred despite the constant availability of suitable nest sites. The hosts did not reduce their clutch size in response to egg parasitism. The rate of egg predation was significantly higher in parasitized than in nonparasitized nests. Parasitic eggs were laid late in the breeding period, suggesting that birds which were immature, in poor body condition, or had previously failed are salvaging some reproductive effort.

Evaluating people's awareness about climate changes and environmental issues: A case study

2021 ◽  
Vol 324 ◽  
pp. 129244
Author(s):  
Crescenza Calculli ◽  
Angela Maria D'Uggento ◽  
Angela Labarile ◽  
Nunziata Ribecco
Keyword(s):  
Climate Changes ◽  
Environmental Issues

scholarly journals work all the time- He just waits for the animals to come back” Social impacts of climate changes: A Greenlandic case study

2009 ◽  
Vol 2 (3) ◽  
Author(s):  
Roanne Van Voorst
Keyword(s):  
Climate Changes ◽  
Social Research ◽  
Participant Observation ◽  
Global Environmental Change ◽  
Policy Makers ◽  
Research Issues ◽  
Global Environmental ◽  
To Come ◽  
And Gender

Understanding human adaptation to climate changes is one of the most important research issues within the area of global environmental change, accounting for the fact that people worldwide are currently adapting to their changing environment (Adger and Kelly 2000: 253; Smit et al. 2008). The Greenlandic case study as presented in this paper is mainly based on a literature analysis and ethnographic data obtained during the Greenlandic winter of 2008, with emphasis on the latter. Participant observation and interviews were combined with a discursive analysis of climate change-related policies. The empirical findings as presented in this paper suggest that an exclusive and gender-neutral focus of policy makers on economic aspects of adaptation to climate changes may increase socio-economic inequality as well as male domestic violence over women. Social research can help to identify such chains of reactions resulting from climate changes and related policies, by focusing on individual adaptation strategies of male and female actors in vulnerable societies.

scholarly journals The 45thAnnual Report of the California Bird Records Committee: 2019 Records

Western Birds ◽  
2021 ◽  
Vol 52 (1) ◽  
pp. 2-22
Author(s):  
Thomas A. Benson ◽  
Deborah J. House ◽  
Guy McCaskie ◽  
Alex M. Rinkert ◽  
Adam J. Searcy ◽  
...  
Keyword(s):  
Mojave Desert ◽  
Species Group ◽  
Common Eider ◽  
Somateria Mollissima ◽  
Total List

From its last report through 2019, the California Bird Records Committee reached decisions on 204 records involving 225 individuals of 62 species and one species group, endorsing 176 records of 197 individuals. These include the first accepted state record of the Yellow-browed Warbler (Phylloscopus inornatus), bringing California’s total list of accepted species to 676, of which 13 represent established introductions. Other especially notable records detailed in this report include the state’s third Common Eider (Somateria mollissima), third Common Ringed Plover (Charadrius hiaticula), fourth and fifth Red-flanked Bluetail (Tarsiger cyanurus), a significant incursion of Cassin’s Sparrows (Peucaea cassinii) into the eastern Mojave Desert, and the first Spotted Redshank (Tringa erythropus) in 30 years.

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