Kenai National Wildlife Refuge: Dall sheep response to fire: vegetation surveys

Записи данных

Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 774 записей.

Также в наличии 3 таблиц с данными расширений. Записи расширений содержат дополнительную информацию об основной записи. Число записей в каждой таблице данных расширения показано ниже.

Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.

Версии

В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.

Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Bowser M, Canterbury C, Chen R, Davis N, Farmer K, Grigsby S, Merrell K, Morton J, Solberg J, Strack S (2024). Kenai National Wildlife Refuge: Dall sheep response to fire: vegetation surveys. Version 1.6. United States Fish and Wildlife Service. Occurrence dataset. https://ipt.gbif.us/resource?r=kenainwr-dall-sheep-vegetation-surveys&v=1.6

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является United States Fish and Wildlife Service. Насколько это возможно по закону, издатель отказался от всех прав на эти данные и посвятил их Public Domain (CC0 1.0). Пользователи могут без ограничений копировать, изменять, распространять и использовать работу, в том числе в коммерческих целях.

Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: 98897462-f677-4878-8a6a-8a5a812b3884.  United States Fish and Wildlife Service отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке GBIF-US.

Ключевые слова

Occurrence; Observation

Внешние данные

Ресурс также доступен в других форматах

Контакты

Географический охват

Our study area was set in the Kenai Mountains, Kenai Peninsula, Alaska.

Таксономический охват

We primarily surveyed vascular plants, but some bryophytes and lichens were noted.

Временной охват

Данные проекта

Описание отсутсвует

Исполнители проекта:

Методы сбора

At each sampling site we followed the 100 m2 circular plot and point intercept protocols of Morton et al. (2006) with some additions: We estimated the percentage of each 100 m2 circular plot that had burned and we indicated whether each site had been chosen randomly or because Dall sheep had been observed using the site. We also photographed the plot from the ends of each 10 m transect toward plot center instead of the pair of photographs taken from south of plot center described by Morton et al. (2006).

Описание этапа методики:

1. We hiked to pre-determined plot coordinates of both randomly-selected sites and feeding sites. At each plot we set a pin at plot center, then we stretched one tape from 10 m south of plot center to 10 m north of plot center and another tape from 10 m east of plot center to 10 m west of plot center. A 5.64 m radius, 100 m2 circular plot was marked by points at 4.36 m and 15.64 m along the tapes.
2. Using a standard datasheet (Bowser and Canterbury, 2023), we recorded whether a plot was a randomly selected site or a site where Dall sheep use had been recently documented. The percentage of the 100 m2 circular plot that had been burned in the 2019 Swan Lake Fire was estimated by eye. Plot coordinates were documented by GPS averaging.
3. We sampled vegetative cover within the first 2 m above ground using the modified point-intercept sampling technique described by Morton et al. (2006). Using an avalanche probe marked with 10 cm or 1 cm increments as a sampling pin, we proceeded along the right sides of tapes from 0 m to 20 m, skipping plot center at 10 m. We sampled at every 0.5 m interval for a total of 40 sampling points per tape and 80 points per plot. We further split each point into two strata: intercepts at 0 to 1 m above the ground surface and from 1 m to 2 m above the ground surface; potential intercepts above 2 m were ignored. Each plant taxon that touched the pin one or more times was recorded within each stratum at each point. Only one hit per stratum per point per taxon was recorded at each of the 80 sampling points. If no vegetation touched the sampling pin within stratum, then “no plants recorded” was tallied. Consequently, a minimum of 40 tallies were recorded per point and stratum. The number of tallies recorded could exceed this value considerably depending on species richness. We also recorded subrates at each point along the transects. Substrate categories were bare ground (including rocks < 13 mm in diameter or width), rock (> 13 mm in diameter or width), litter (including wood < 25 mm diameter), dead wood (> 25 mm diameter), water, snow/ice, ash/charcoal, and basal cover of live vegetation. Any live vegetation recorded as a substrate (as basal cover) was also recorded by species in the 0 to 1 m stratum. The total number of substrates recorded should always equal 40 per transect (80 per plot). From the ends of each transect we photographed the plot facing plot center.
4. We recorded all vascular plant species within 5.64 m (horizontal distance) of the plot center as described by Morton et al. (2006).
5. Plants that could not be identified with confidence in the field were collected and pressed for later examination. For identifications in the lab we used relevant keys and floras including Hultén (1968), Welsh (1974), Bayer (1993), Douglas et al. (1998), Collet (2002), Flora of North America Editorial Committee (2002), Bayer (2006), Skinner et al. (2012), and Murrell and Poindexter (2016).
6. Data from data sheets were entered by hand into tabular format (Bowser et al., 2024), and these were reformatted to Darwin Core format using a Quarto script (Bowser, 2024b).

Библиографические ссылки

1. Bayer RJ (1993) A taxonomic revision of the genus Antennaria (Asteraceae: Inuleae: Gnaphaliinae) of Alaska and Yukon Territory, northwestern North America, Arctic and Alpine Research, 25(2), pp. 150–159. https://doi.org/10.2307/1551552 https://doi.org/10.2307/1551552
2. Bayer RJ (2006) Antennaria Gaertner, in Flora of North America Editorial Committee (ed.) Flora of North America north of Mexico. Volume 19. Magnoliophyta: Asteridae (in part): Asteraceae, part 1. New York: Oxford University Press. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=101977 http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=101977
3. Bowser ML (2023) Kenai National Wildlife Refuge 2023 Dall sheep project sampling design. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/175338 https://ecos.fws.gov/ServCat/Reference/Profile/175338
4. Bowser ML (2024a) Kenai National Wildlife Refuge Dall sheep project, vegetation data checks. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/175345 https://ecos.fws.gov/ServCat/Reference/Profile/175345
5. Bowser ML (2024b) Quarto script for exporting occurrence data from Kenai National Wildlife Refuge Dall sheep project, vegetation surveys 2023. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/175408 https://ecos.fws.gov/ServCat/Reference/Profile/175408
6. Bowser ML & Canterbury C (2023) Kenai National Wildlife Refuge 2023 Dall sheep project vegetation survey datasheet. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/175348 https://ecos.fws.gov/ServCat/Reference/Profile/175348
7. Bowser ML, Canterbury C, Chen R, Davis N, Farmer K, Grigsby S, Merrell K, Morton J, Solberg J & Strack S (2024) Kenai National Wildlife Refuge: Dall sheep response to fire: Vegetation surveys - 2023 survey data, data sheets. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/175351 https://ecos.fws.gov/ServCat/Reference/Profile/175351
8. Collet DM (2002) Willows of Southcentral Alaska. Soldotna, Alaska: Kenai Watershed Forum.
9. Douglas GW, Straley GB, Meidinger DV & Pojar J (eds.) (1998) Illustrated flora of British Columbia, volume 1: Gymnosperms and Dicotyledons (Aceraceae through Asteraceae). Victoria, B.C.: B.C. Ministry of Environment, Lands and Parks,; B.C. Ministry of Forests. https://www.for.gov.bc.ca/hfd/pubs/docs/mr/Mr100.pdf https://www.for.gov.bc.ca/hfd/pubs/docs/mr/Mr100.pdf
10. Flora of North America Editorial Committee (ed.) (2002) Flora of North America north of Mexico. Volume 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. New York: Oxford University Press.
11. Herreman JK (2018) Dall sheep management report and plan, Game Management Units 7 and 15: Report period 1 July 2011–30 June 2016, and plan period 1 July 2016–30 June 2021. Species Management Report and Plan ADF&G/DWC/SMR&P-2018-34. Juneau, Alaska: Alaska Department of Fish and Game, Division of Wildlife Conservation. https://www.adfg.alaska.gov/static/research/wildlife/speciesmanagementreports/pdfs/dallsheep_2011_2021_smr_gmu_7_15.pdf https://www.adfg.alaska.gov/static/research/wildlife/speciesmanagementreports/pdfs/dallsheep_2011_2021_smr_gmu_7_15.pdf
12. Hultén E (1968) Flora of Alaska and neighboring territories. Stanford, California: Stanford University Press.
13. Lohuis T, Smith K, Metherell L & Dial R (2018) Dall’s sheep population declines in Alaska’s Chugach Range may be related to climate and weather patterns, in Biennial Symposium of the Northern Wild Sheep and Goat Council. Whitefish, Montana: Northern Wild Sheep and Goat Council, p. 76. http://media.nwsgc.org/proceedings/NWSGC-2018/Lohuis%20et%20al.%20abstract.pdf http://media.nwsgc.org/proceedings/NWSGC-2018/Lohuis%20et%20al.%20abstract.pdf
14. Morton JM, Berg E, Bowser ML, Eskelin T, Jozwiak L, Laker M, Magness D & O’Brien L (2006) Long Term Ecological Monitoring Program: Interagency agreement, original proposal, and 2004 field protocols. Soldotna, Alaska: United States Fish and Wildlife Service, Kenai National Wildlife Refuge. https://ecos.fws.gov/ServCat/Reference/Profile/132198 https://ecos.fws.gov/ServCat/Reference/Profile/132198
15. Murrell ZE & Poindexter DB (2016) Cornaceae Berchtold & J. Presl, in Flora of North America Editorial Committee (ed.) Flora of North America north of Mexico. Volume 12. Magnoliophyta: Vitaceae to Garryaceae. New York: Oxford University Press. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=10219 http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=10219
16. Skinner Q, Wright S, Henszey R, Henszey J & Wyman S (2012) A field guide to Alaska grasses. Cumming, Georgia: Education Resources Publishing.
17. Welsh SL (1974) Anderson’s flora of Alaska. Provo, Utah: Brigham Young University Press.

Дополнительные метаданные