scholarly journals Indigenous knowledge of bearded seal (Erignathus barbatus), ringed seal (Pusa hispida), and spotted seal (Phoca largha) behaviour and habitat use near Utqiaġvik, Alaska

2021 ◽  
Author(s):  
Rowenna Gryba ◽  
Henry P Huntington ◽  
Andrew L. Von Duyke ◽  
Billy Adams ◽  
Brower Frantz ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Use ◽  
Indigenous Knowledge ◽  
Municipal Government ◽  
Ringed Seal ◽  
Ringed Seals ◽  
Ice Retreat ◽  
Inland Water Bodies ◽  
Management And Conservation ◽  
Bearded Seals

Indigenous people possess information of animals’ habitat use and behaviour; information essential for management and conservation of species affected by climate change. Accessibility of species that are important to Indigenous hunters may also change with environmental conditions. We documented Indigenous Knowledge of bearded (ugruk in Iñupiaq), ringed (natchiq), and spotted seals (qasigiaq) in Utqiaġvik, Alaska, using semi-directed interviews with Iñupiaq hunters. This study originated from discussions with an agency of the regional municipal government to serve co-management efforts and understand habitat use of species subjected to climate change. Results indicated that ringed seals are associated with higher ice concentrations in winter than bearded seals and changes in sea ice retreat in spring may have greater impact on ringed seal habitat use because they are more likely to haul out on ice in spring. Additionally, all three species have foraging hotspots, used over several days by multiple individuals. Bearded seals, and to a lesser extent spotted and ringed seals, will use currents to forage. Results also revealed the use of inland water bodies and terrestrial habitat, which may become more important for bearded and ringed seals with changing ice concentrations and should be considered in management and conservation of these species.

scholarly journals Seal Occurrence and Habitat Use during Summer in Petermann Fjord, Northwestern Greenland

ARCTIC ◽  
2018 ◽  
Vol 71 (3) ◽  
Author(s):  
Kate Lomac-MacNair ◽  
Martin Jakobsson ◽  
Alan Mix ◽  
Francis Freire ◽  
Kelly Hogan ◽  
...  
Keyword(s):  
Habitat Use ◽  
Ice Cover ◽  
High Arctic ◽  
Distribution Data ◽  
Hooded Seal ◽  
Nares Strait ◽  
Ice Coverage ◽  
Ringed Seals ◽  
Pagophilus Groenlandicus ◽  
Bearded Seals

Ice-associated seals are considered especially susceptible and are potentially the first to modify distribution and habitat use in response to physical changes associated with the changing climate. Petermann Glacier, part of a unique ice-tongue fjord environment in a rarely studied region of northwestern Greenland, lost substantial sections of its ice tongue during major 2010 and 2012 calving events. As a result, changes in seal habitat may have occurred. Seal occurrence and distribution data were collected in Petermann Fjord and adjacent Nares Strait region over 27 days (2 to 28 August) during the multidisciplinary scientific Petermann 2015 Expedition on the icebreaker Oden. During 239.4 hours of dedicated observation effort, a total of 312 individuals were recorded, representing four species: bearded seal (Erignathus barbatus), hooded seal (Crystophora cristata), harp seal (Pagophilus groenlandicus), and ringed seal (Pusa hispida). Ringed seals were recorded significantly more than the other species (χ2 = 347.4, df = 3, p < 0.001, n = 307). We found significant differences between species in haul-out (resting on ice) behavior (χ2 = 133.1, df = 3, p < 0.001, n = 307). Bearded seals were more frequently hauled out (73.1% n = 49), whereas ringed seals were almost exclusively in water (93.9%, n = 200). Differences in average depth and ice coverage where species occurred were also significant: harp seals and bearded seals were found in deeper water and areas of greater ice coverage (harp seals: 663 ± 366 m and 65 ± 14% ice cover; bearded seals: 598 ± 259 m and 50 ± 21% ice cover), while hooded seals and ringed seals were found in shallower water with lower ice coverage (hooded seals: 490 ± 163 m and 38 ± 19% ice cover; ringed seals: 496 ± 235 m, and 21 ± 20% ice cover). Our study provides an initial look at how High Arctic seals use the rapidly changing Petermann Fjord and how physical variables influence their distribution in one of the few remaining ice-tongue fjord environments.

scholarly journals Habitat use as indicator of adaptive capacity to climate change

2021 ◽  
Author(s):  
Claire S. Teitelbaum ◽  
Alexej P. K. Sirén ◽  
Ethan Coffel ◽  
Jane R. Foster ◽  
Jacqueline L. Frair ◽  
...  
Keyword(s):  
Climate Change ◽  
Habitat Use ◽  
Adaptive Capacity

Distribution and abundance of ringed (Phoca hispida) and bearded seals (Erignathus barbatus) in western Hudson Bay

1997 ◽  
Vol 54 (4) ◽  
pp. 914-921 ◽  
Author(s):  
N J Lunn ◽  
I Stirling ◽  
S N Nowicki
Keyword(s):  
Polar Bear ◽  
Hudson Bay ◽  
Phoca Hispida ◽  
Current Estimate ◽  
Ringed Seals ◽  
Erignathus Barbatus ◽  
The Mean ◽  
Western Hudson Bay ◽  
The Relationship ◽  
Bearded Seals

We flew a medium-altitude, systematic, strip-transect survey for ringed (Phoca hispida) and bearded seals (Erignathus barbatus) over western Hudson Bay in early June 1994 and 1995. The mean density (per square kilometre) of ringed seals hauled out on the ice was four times higher in 1995 (1.690) than in 1994 (0.380). The 1994 survey appeared to underestimate seal abundance because it was flown too late. Ringed seals preferred high ice cover habitat (6 + /8 ice) and, within this habitat, favoured cracking ice and large floes. We found no consistent effect of either wind or cloud cover on habitat preference. We estimated a total of 1980 bearded seals and 140<|>880 ringed seals hauled out on the sea ice in June 1995. A recent review of the relationship between ringed seal and polar bear (Ursus maritimus) populations suggests that a visible population of this size should support a population of up to 1300 polar bears, which is in general agreement with the current estimate of 1250-1300 bears in western Hudson Bay.

Population parameters of ringed seals (Phoca hispida Schreber, 1775) in the Svalbard area

1987 ◽  
Vol 65 (4) ◽  
pp. 1021-1027 ◽  
Author(s):  
Christian Lydersen ◽  
Ian Gjertz
Keyword(s):  
Sex Ratio ◽  
Ringed Seal ◽  
Adult Males ◽  
Population Parameters ◽  
Phoca Hispida ◽  
Age Class ◽  
Ringed Seals ◽  
Males And Females ◽  
The Mean ◽  
Sexually Mature

Samples were taken from 284 ringed seals (Phoca hispida) in the Svalbard area during April–July 1981 and March–April 1982. The age of 283 seals was determined by reading annuli in the cementum of the canine teeth. The mean age of the males was 11.3 years, and of the females, 14.9 years. Females were found to be significantly older than males. The mean length of sexually mature ringed seals was 128.9 cm for both sexes. The mean weight of adult males and females was 53.5 and 61.4 kg, respectively. Females were found to be significantly heavier than males. The sex ratio was 47.8% males and 52.2% females. Studies of microscopic sections of testis and epididymis from ringed seal males showed that 63, 75, and 80% of 5-, 6-, and 7-year-old animals, respectively, were sexually mature. The weights of testis and epididymis, diameters of tubuli, and the size of testis all showed a marked increase in the 5-year age-class. Macroscopic sections of ovaries from ringed seal females showed that 20, 60, and 80% of 3-, 4-, and 5-year-old animals, respectively, were sexually mature. The size of the ovaries showed a marked increase in the 5-year age-class. The ovulation rate of ringed seals from Svalbard was calculated to be 0.91.

scholarly journals Stable ringed seal (Pusa hispida) demography despite significant habitat change in Svalbard, Norway

2021 ◽  
Vol 40 ◽  
Author(s):  
Magnus Andersen ◽  
Kit M. Kovacs ◽  
Christian Lydersen
Keyword(s):  
Life History ◽  
Sea Ice ◽  
Close Association ◽  
Ringed Seal ◽  
Breeding Habitat ◽  
Small Scale ◽  
Recent Period ◽  
Ringed Seals ◽  
Time Periods ◽  
Circumpolar Arctic

Ringed seals, which are small phocid seals, range across the circumpolar Arctic, and have evolved in close association with sea ice and depend on it for all aspects of their life history. This research study compares age structure, reproductive parameters, body size and condition during three time periods—1981–82 (n = 277), 2002–04 (n = 272) and 2012–18 (n = 212)—to study potential changes in demography in ringed seals in western Svalbard, Norway, an area that has undergone dramatic changes in sea-ice conditions during recent decades. Age distributions for the three time periods were similar, with the exception that the most recent period had a higher proportion of young animals. Age at sexual maturity for both sexes was similar for the two most recent periods, both being lower than in the 1980s. Ovulation rates did not vary significantly among the three periods (range 0.86–0.94). Pregnancy rates were only available for the most recent study period (0.71); this value falls within the range reported from other Arctic regions. Body length showed no clear temporal patterns; males were slightly longer in the most recent period, while females were slightly longer in the first period. Data from May in all periods suggest that body condition has not varied significantly through time. In conclusion, although the ringed seal breeding habitat in Svalbard has declined significantly in recent decades, demographic parameters appear to be largely unaffected. Life-history plasticity in combination with a small-scale regional variation in environmental conditions might explain the lack of changes in demography over time.

scholarly journals What Can Traditional Indigenous Knowledge Teach Us About Changing Our Approach to Human Activity and Environmental Stewardship in Order to Reduce the Severity of Climate Change?

2018 ◽  
Vol 9 (3) ◽  
Author(s):  
John G Hansen ◽  
Rose Antsanen
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Indigenous Knowledge ◽  
Human Activity ◽  
Environmental Issues ◽  
Indigenous Communities ◽  
Knowledge Systems ◽  
Environmental Stewardship ◽  
Fundamental Assumption ◽  
Impacts Of Climate Change

Many Indigenous communities living on traditional lands have not contributed significantly to harmful climate change. Yet, they are the most likely to be impacted by climate change. This article discusses environmental stewardship in relation to Indigenous experiences and worldviews. Indigenous knowledge teaches us about environmental stewardship. It speaks of reducing the severity of climate change and of continued sustainable development. The methodology that directs this research is premised on the notion that the wisdom of the Elders holds much significance for addressing the harmful impacts of climate change in the present day. This article's fundamental assumption is that Indigenous knowledge offers practical and theoretical recommendations to current approaches to human activity and environmental issues. We share findings from interviews with Cree Elders who discussed their worldviews and knowledge systems. Findings revealed that Indigenous knowledge offers a philosophy and practice that serve to reduce the severity of climate change.

Climate Change Adaptation in Rwanda through Indigenous Knowledge Practice

2016 ◽  
Vol 46 (2) ◽  
pp. 165-175 ◽  
Author(s):  
Nathan K Taremwa ◽  
Damascene Gashumba ◽  
Anastase Butera ◽  
Thimmaiyah Ranganathan
Keyword(s):  
Climate Change ◽  
Indigenous Knowledge ◽  
Climate Change Adaptation ◽  
Knowledge Practice

scholarly journals Adaptation measures to sustain indigenous practices and the use of indigenous knowledge systems to adapt to climate change in Mutoko rural district of Zimbabwe

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Shingirai S. Mugambiwa
Keyword(s):  
Climate Change ◽  
Indigenous Knowledge ◽  
Climatic Variability ◽  
Knowledge Systems ◽  
Rural District ◽  
Community Members ◽  
Adaptation Measures ◽  
Crop Type ◽  
Indigenous Knowledge Systems ◽  
Type Change

This article examines adaptation measures used to sustain indigenous practices and the use of indigenous knowledge systems (IKS) to adapt to climate change in Mutoko rural district of Zimbabwe. Community-based adaptation is able to reduce the vulnerability as well as improve the resilience of the local people to climatic variability and change. Subsistence farmers have always adopted adaptive strategies to some of these changes over the years. As such, the adoption of indigenous practices will significantly help rural community members to adapt to climate change. This study employed a qualitative method and an exploratory design, and the results are derived from 30 purposively selected in-depth interviews. The study discovered that there are numerous measures used to adapt to climate change and subsequently to sustain indigenous practices. The study also found that the community no longer grows maize in large quantities, having shifted to millet and sorghum in order to adapt to climate change. The community also provided various strategies to adapt to climate change. These strategies include mulching, creating large storage houses for produce and creating temporary walls on riverbanks in order to store water when the rivers dry up. This study concludes that climate change adaptation measures employed by the community have significantly helped them to sustain their indigenous practices in many ways. Also, the use of IKS, through activities such as crop type change from maize to traditional millet and sorghum (which facilitates traditional lifestyle and activities), re-establishes the community’s indigenous practices since they are made to observe the practices of yesteryear.

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