Polar Biology最新文献

Associations between iKaluk/Arctic charr (Salvelinus alpinus) and estuarine benthic diatom habitats in nearshore Nunatsiavut waters. Nunatsiavut近岸水域iKaluk/Arctic charr （Salvelinus alpinus）与河口底栖硅藻栖息地之间的关系。

IF 1.5 4区环境科学与生态学

Polar Biology Pub Date : 2025-01-01 Epub Date: 2025-01-02 DOI: 10.1007/s00300-024-03323-z

Zachary MacMillan-Kenny, Mary Denniston, Evan Edinger, Adam Templeton, David Côté, Audrey Limoges, Katleen Robert

{"title":"Associations between iKaluk/Arctic charr (Salvelinus alpinus) and estuarine benthic diatom habitats in nearshore Nunatsiavut waters.","authors":"Zachary MacMillan-Kenny, Mary Denniston, Evan Edinger, Adam Templeton, David Côté, Audrey Limoges, Katleen Robert","doi":"10.1007/s00300-024-03323-z","DOIUrl":"https://doi.org/10.1007/s00300-024-03323-z","url":null,"abstract":"iKaluk, Inuttitut for Arctic charr (Salvelinus alpinus), holds significant commercial and cultural value for Inuit communities throughout Nunatsiavut. Studies evaluating iKaluk habitat associations in freshwater are plentiful; however, there is limited information on the ecological makeup and sediment characteristics of anadromous charr habitats in marine environments. This study investigated the benthic associations of Arctic charr during their marine residency period in Nain, Nunatsiavut, using underwater videos, harvester-identified fishing locations, and acoustic telemetry. Drop-camera surveys were deployed on previously placed hydrophone acoustic receivers and within harvester-identified fishing locations to describe and quantify available benthic habitats in the study area. Telemetry information was used to identify charr occupancy hotspots, and calculate habitat suitability indices. A total of 248,056 benthic organisms belonging to 63 morphotaxa were identified within the 125 video drops used for benthic community characterization and these represented five faunal assemblages. Marine phase charr occupied estuaries to a greater degree than other fjord or coastal headland environments and these habitats were typically characterized by fine sediments covered by high densities of brittle stars (Ophiuroidea spp.) and benthic diatom mats. The consistent presence of diatomaceous sediments is indicative of abundant foraging opportunities. The importance of these habitats to iKaluk, need to be considered in future marine planning given the cultural and ecological value of this species to many northern communities that face growing threats from environmental change.Supplementary information: The online version contains supplementary material available at 10.1007/s00300-024-03323-z.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"48 1","pages":"20"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11693620/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A circumpolar review of the breeding distribution and habitat use of the snow petrel (Pagodroma nivea), the world's most southerly breeding vertebrate. 雪海燕（Pagodroma nivea）是世界上最南端的脊椎动物，其繁殖分布和栖息地利用的极地综述。

IF 1.5 4区环境科学与生态学

Polar Biology Pub Date : 2025-01-01 Epub Date: 2024-12-18 DOI: 10.1007/s00300-024-03336-8

Josie Francis, Ewan Wakefield, Stewart S R Jamieson, Richard A Phillips, Dominic A Hodgson, Colin Southwell, Louise Emmerson, Peter Fretwell, Michael J Bentley, Erin L McClymont

{"title":"A circumpolar review of the breeding distribution and habitat use of the snow petrel (Pagodroma nivea), the world's most southerly breeding vertebrate.","authors":"Josie Francis, Ewan Wakefield, Stewart S R Jamieson, Richard A Phillips, Dominic A Hodgson, Colin Southwell, Louise Emmerson, Peter Fretwell, Michael J Bentley, Erin L McClymont","doi":"10.1007/s00300-024-03336-8","DOIUrl":"10.1007/s00300-024-03336-8","url":null,"abstract":"Knowledge of the spatial distribution of many polar seabird species is incomplete due to the remoteness of their breeding locations. Here, we compiled a new database of published and unpublished records of all known snow petrel Pagodroma nivea breeding sites. We quantified local environmental conditions at sites by appending indices of climate and substrate, and regional-scale conditions by appending 30 year mean (1992-2021) sea-ice conditions within accessible foraging areas. Breeding snow petrels are reported at 456 sites across Antarctica and subantarctic islands. Although many counts are old or have large margins of error, population estimates available for 222 known sites totalled a minimum of ~ 77400 breeding pairs. However with so many missing data, the true breeding population will be much higher. Most sites are close to the coast (median = 1.15 km) and research stations (median = 26 km). Median distance to the November sea-ice edge (breeding season sea-ice maximum) is 430 km. Locally, most nests occur in cavities in high-grade metamorphic rocks. Minimum air temperatures occur at inland sites, and maxima at their northern breeding limit. Breeding location and cavity selection is likely determined by availability of suitable breeding substrate within sustainable distance of suitable foraging habitat. Within this range, nest sites may then be selected based on local conditions such as cavity size and aspect. Our database will allow formal analyses of habitat selection and provides a baseline against which to monitor future snow petrel distribution changes in response to climate change.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"48 1","pages":"9"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11655582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142877659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spawning and development of the Patagonian cold-water microgastropod Eatoniella turricula Ponder and Worsfold 1994 (Caenogastropoda: Eatoniellidae) 巴塔哥尼亚冷水微腹足动物 Eatoniella turricula Ponder 和 Worsfold 1994 年的产卵和发育（腹足纲：Eatoniellidae）

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-09-18 DOI: 10.1007/s00300-024-03299-w

Javier Di Luca, Pablo E. Penchaszadeh, Guido Pastorino

{"title":"Spawning and development of the Patagonian cold-water microgastropod Eatoniella turricula Ponder and Worsfold 1994 (Caenogastropoda: Eatoniellidae)","authors":"Javier Di Luca, Pablo E. Penchaszadeh, Guido Pastorino","doi":"10.1007/s00300-024-03299-w","DOIUrl":"https://doi.org/10.1007/s00300-024-03299-w","url":null,"abstract":"Species of Eatoniellidae are typical members of shallow, cold waters of the Southern Hemisphere; however, very little is known about their biology. This work deals with the first description of spawns and developmental stages for the family. All samples were collected from Southern Argentina and were identified as Eatoniella turricula based on shell, opercular, and radular characters. Spawn is composed by a globose, thick-walled capsule with a single egg/embryo surrounded by nutritive liquid which allows direct development. E. turricula is a very small species, with limitation to the energy available for reproduction and inhabiting in cold water implying a low metabolic and growth rate. The species is expected to produce few eggs, thereby increasing the possibilities of survival by allocating available energy to generate an abundant food supply within a thick-walled capsule that provides strong protection. This strategy resulted comparable to other microgastropods from cold water suggesting that evolved many times independently and convergently. The distribution of Eatoniellidae is also discussed considering its direct development as well as the geographical changes occurred in Southern areas during the last 20 millions of years, including the ongoing development of the Antarctic Circumpolar Current.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"205 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sea ice as habitat for microalgae, bacteria, virus, fungi, meio- and macrofauna: A review of an extreme environment 海冰是微藻、细菌、病毒、真菌、小型动物和大型动物的栖息地：极端环境综述

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-30 DOI: 10.1007/s00300-024-03296-z

Lars Chresten Lund-Hansen, Rolf Gradinger, Brandon Hassett, Sahan Jayasinghe, Fraser Kennedy, Andrew Martin, Andrew McMinn, Dorte H. Søgaard, Brian K. Sorrell

{"title":"Sea ice as habitat for microalgae, bacteria, virus, fungi, meio- and macrofauna: A review of an extreme environment","authors":"Lars Chresten Lund-Hansen, Rolf Gradinger, Brandon Hassett, Sahan Jayasinghe, Fraser Kennedy, Andrew Martin, Andrew McMinn, Dorte H. Søgaard, Brian K. Sorrell","doi":"10.1007/s00300-024-03296-z","DOIUrl":"https://doi.org/10.1007/s00300-024-03296-z","url":null,"abstract":"The novel concept of the review is a focus on the organisms living in the sea ice and what mechanisms they have developed for their existence. The review describes the physical environment of the sea ice and the microorganisms living there as microalgae, bacteria, virus, fungi, meio- and macrofauna where they inhabit the brine channels and exposed to low temperatures as down to −25 °C and high salinities—up to 300. Nutrients, O2, CO2, pH, light, and UV are also identified as stressors regarding the metabolism of the microorganisms. It is argued that sea ice must be recognized as an extreme environment as based on records of very high or very low concentrations or intensities of the stressors that living organisms in the ice are exposed to and able to endure. Each taxonomic group of organisms in the sea ice are dealt with in detail in terms of the explicit stressors the group is exposed to, and specifically what known mechanisms that the organisms have amended to secure existence and life. These mechanisms are known for some group of organisms as autotrophs, bacteria, meio- and macrofauna but less so for virus and fungi. The review concludes that sea ice is an extreme environment where the stressors vary significantly in both space and time, both in consort and solitary, classifying organisms living there as polyextremophiles and extremophiles. The review relates further to extraterrestrial moons covered with sea ice and these habitats and points toward sea ice on Earth for prospective studies until further technological advances.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"32 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New record of the southern right whale dolphin, Lissodelphis peronii (Lacépède, 1804), in the coastal waters of Brazil 巴西沿海水域南露脊鲸海豚 Lissodelphis peronii (Lacépède, 1804) 的新记录

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-26 DOI: 10.1007/s00300-024-03297-y

Luiz Gustavo Ramos Arrial, Thayusky da Penha Correa, Pedro Volkmer de Castilho, Rodrigo Machado

{"title":"New record of the southern right whale dolphin, Lissodelphis peronii (Lacépède, 1804), in the coastal waters of Brazil","authors":"Luiz Gustavo Ramos Arrial, Thayusky da Penha Correa, Pedro Volkmer de Castilho, Rodrigo Machado","doi":"10.1007/s00300-024-03297-y","DOIUrl":"https://doi.org/10.1007/s00300-024-03297-y","url":null,"abstract":"The southern right whale dolphin, Lissodelphis peronii (Lacépède, 1804), is a species of cetacean that is distributed in cold and deep waters throughout the Southern Hemisphere, with records in coastal waters of the western Atlantic Ocean being extremely rare. On January 7, 2019, a specimen still alive, was recorded entangled in a fishing gillnet on the beach at Cardoso Beach (28°44′S, 48°58′W), in the state of Santa Catarina, on the southern coast of Brazil. The recording was made by a lifeguard using a GoPro camera and was made available through citizen science. The animal was untangled and released while still alive and was not found stranded again after the date of the event. Based on existing literature, this is the second record of the species in Brazilian waters. Analyzing meteorological and oceanographic features from the days preceding the record, it was not possible to make any association between the entanglement and the variables analyzed, and no explanatory driver could therefore be established for this unusual event.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"11 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arctic raptor occupancy and reproductive success near a remote open-cut mine: North Baffin Island, Nunavut 偏远露天矿附近的北极猛禽栖息地和繁殖成功率：努勒维特北巴芬岛

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-20 DOI: 10.1007/s00300-024-03292-3

Alastair Franke, Kerman Bajina, Michael Setterington

{"title":"Arctic raptor occupancy and reproductive success near a remote open-cut mine: North Baffin Island, Nunavut","authors":"Alastair Franke, Kerman Bajina, Michael Setterington","doi":"10.1007/s00300-024-03292-3","DOIUrl":"https://doi.org/10.1007/s00300-024-03292-3","url":null,"abstract":"Natural resource development in the Canadian Arctic—a mostly remote and ‘untouched’ landscape—is expanding. Raptorial species are key indicators of ecosystem diversity and environmental change; disturbance-mediated changes to Arctic-breeding raptor populations can be assessed to determine impacts from development. From 2012 through 2020, we monitored peregrine falcon (Falco peregrinus) and rough-legged hawk (Buteo lagopus) breeding territories near an iron ore mine on North Baffin Island, Nunavut, Canada. The mine was constructed from 2010 through 2014 and became operational in 2015. Our objective was to evaluate whether proximity to mining disturbance affected occupancy and reproductive success of both species. We quantified occupancy using multi-season occupancy models and reproductive success using stochastic partial differential equations capable of accounting for unexplained spatiotemporal variation. Occupancy of both species was best explained by year effects. Occupancy remained relatively stable across time for peregrine falcons ((lambda) = 0.99 ± 0.04) but fluctuated drastically for rough-legged hawks ((lambda) = 3.41 ± 2.17). For both species, most of the spatiotemporal variation in reproductive success was unexplained (presumably from underlying abiotic and biotic factors), which led to the differential presence and count of nestlings across the study area and time. Neither distance to disturbance nor primary production explained variation in occupancy and reproductive success.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"41 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evidence for rapid ecosystem retrogression along a post-glacial chronosequence in Antarctica 南极冰川后时间序列上生态系统快速倒退的证据

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-18 DOI: 10.1007/s00300-024-03279-0

S. K. Schmidt, L. Vimercati, A. J. Solon, J. N. Robinson, C. P. Bueno de Mesquita, B. W. Johnson

{"title":"Evidence for rapid ecosystem retrogression along a post-glacial chronosequence in Antarctica","authors":"S. K. Schmidt, L. Vimercati, A. J. Solon, J. N. Robinson, C. P. Bueno de Mesquita, B. W. Johnson","doi":"10.1007/s00300-024-03279-0","DOIUrl":"https://doi.org/10.1007/s00300-024-03279-0","url":null,"abstract":"Glacial retreat due to global warming is exposing large tracts of barren glacial sediments that are quickly colonized by CO2-fixing microbial communities that can constitute the climax community in many high-Arctic, alpine, and Antarctic environments. Despite the potential importance of these processes, little is known about microbial community successional dynamics and rates of carbon (C) sequestration in environments where higher plants are slow or unable to establish. We analyzed microbial community succession and C and N accumulation in newly exposed sediments along an Antarctic glacial chronosequence where moss and microbial autotrophs are the dominant primary producers. During the first 4 years of succession (0 to 40 m from the glacier) algae (including diatoms) were the most relatively abundant eukaryotes, but by the second phase studied (8 to 12 years) moss amplicon sequence variants (ASVs) dominated. The rise in moss coincided with a significant buildup of C and N in the sediments. The final two phases of the successional sequence (16 to 20 and 26 to 30 years) were marked by declines in microbial species richness and moss relative abundance, that coincided with significant decreases in both total C and N. These retrogressive declines coincided with a large increase in relative abundance of predatory Vampyrellidae suggesting a possible mechanism for retrogression in this and perhaps other terrestrial ecosystems at the edge of the cryosphere. These findings have implications for understanding CO2 sequestration and ecosystem succession in microbial-dominated regions of the cryobiosphere where large tracts of land are currently undergoing deglaciation.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"52 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142184589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fish in the diet of the Antarctic Shag Leucocarbo bransfieldensis breeding at Paradise Bay, Antarctic Peninsula 在南极半岛天堂湾繁殖的南极长须鲸（Leucocarbo bransfieldensis）的食物中的鱼类

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-13 DOI: 10.1007/s00300-024-03293-2

R. Casaux, M. Juáres, A. Farace Rey

引用次数: 0

Prey targeted by lactating Weddell seals (Leptonychotes weddellii) in Erebus Bay, Antarctica 南极洲埃里伯斯湾哺乳期威德尔海豹（Leptonychotes weddellii）捕食的猎物

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-12 DOI: 10.1007/s00300-024-03294-1

Rose T. N. Foster-Dyer, Kimberly T. Goetz, Takashi Iwata, Rachel R. Holser, Sarah A. Michael, Craig Pritchard, Simon Childerhouse, Daniel P. Costa, David G. Ainley, Matthew H. Pinkerton, Michelle A. LaRue

{"title":"Prey targeted by lactating Weddell seals (Leptonychotes weddellii) in Erebus Bay, Antarctica","authors":"Rose T. N. Foster-Dyer, Kimberly T. Goetz, Takashi Iwata, Rachel R. Holser, Sarah A. Michael, Craig Pritchard, Simon Childerhouse, Daniel P. Costa, David G. Ainley, Matthew H. Pinkerton, Michelle A. LaRue","doi":"10.1007/s00300-024-03294-1","DOIUrl":"https://doi.org/10.1007/s00300-024-03294-1","url":null,"abstract":"Female Weddell seals (Leptonychotes weddellii) display a mixed capital-income breeding strategy, losing up to 40% of their body mass between birthing and weaning their pups. How and when they regain energy stores, however, remains to be fully explored. To better understand the foraging by lactating Weddell seals, we fitted time-depth recorders and head-mounted cameras on 26 seals in Erebus Bay, Ross Sea, for ~ 5 days in November and December 2018 and 2019. We aimed to (1) identify prey species and foraging depth and (2) investigate relationships between seal physiology and demographics and probability of foraging. We recorded 2782 dives, 903 of which were > 50 m, maximum depth was 449.3 m and maximum duration was 31.1 min. Pup age likely contributes to the probability of a lactating Weddell seal foraging (Est. = 1.21 (SD = 0.61), z = 1.97, p = 0.0484). Among 846 prey encounters, the most frequent prey items were crustaceans (46.2%) and Antarctic silverfish (Pleuragramma antarcticum, 19.0%); two encounters were observed with juvenile Antarctic toothfish (Dissostichus mawsoni, 0.2%). We identified substantial variability in foraging behaviour, individually and between locations, and found that lactating seals target many species and some may specialise on certain prey groups.","PeriodicalId":20362,"journal":{"name":"Polar Biology","volume":"29 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake 更正：Mysis segerstralei，斯瓦尔巴特湖中北极鲑鱼（Salvelinus alpinus）的一种意外但重要的猎物

IF 1.7 4区环境科学与生态学

Polar Biology Pub Date : 2024-08-12 DOI: 10.1007/s00300-024-03286-1

Martin-A. Svenning, Ole Christian Skogstad, Øyvind Skogstad, Reidar Borgstrøm

引用次数: 0