Presence-absence of plant habitat specialists in 15 patches

資料紀錄

此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 45 筆紀錄。

亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。

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版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

Lieungh E, Wollan A K, Stabbetorp O E, Bjureke K (2022): Presence-absence of plant habitat specialists in 15 patches. v1.14. University of Oslo. Dataset/Samplingevent. https://ipt.gbif.no/resource?r=geco-plant-habitat-specialists-15-patches&v=1.14

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 University of Oslo。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF 註冊

此資源已向GBIF註冊，並指定以下之GBIF UUID: a99cf6c0-4eb2-476b-8414-a513f0925d86。  University of Oslo 發佈此資源，並經由GBIF Norway同意向GBIF註冊成為資料發佈者。

關鍵字

Samplingevent; checklist; vascular plants; specialist species; presence-absence data; calcareous grassland; habitat patch; metapopulation

聯絡資訊

Eva Lieungh

• 元數據提供者 ●
• 出處 ●
• 連絡人

PhD student

Natural History Museum, University of Oslo

NO

eva.lieungh@nhm.uio.no

http://orcid.org/0000-0003-4009-944X

Anders Kvalvåg Wollan

• 元數據提供者 ●
• 出處

Head Engineer

Natural History Museum, University of Oslo

NO

a.k.wollan@nhm.uio.no

http://orcid.org/0000-0003-3947-9402

Odd Egil Stabbetorp

• 元數據提供者 ●
• 出處

Senior Research Scientist

Norwegian Institute for Nature Research

NO

odd.stabbetorp@nina.no

http://orcid.org/0000-0002-1759-7662

Kristina Bjureke

• 元數據提供者

Assistant professor

Natural History Museum, University of Oslo

NO

kristina.bjureke@nhm.uio.no

http://orcid.org/0000-0001-6917-8593

Olav Skarpaas

• 元數據提供者

Professor

Natural History Museum, University of Oslo

NO

olav.skarpaas@nhm.uio.no

http://orcid.org/0000-0001-9727-1672

Siri Lie Olsen

• 元數據提供者

Associate professor

Norwegian University of Life Sciences

NO

siri.lie.olsen@nmbu.no

http://orcid.org/0000-0002-4443-8261

Marianne Evju

• 元數據提供者

Senior Research Scientist

Norwegian Institute for Nature Research

NO

marianne.evju@nina.no

http://orcid.org/0000-0001-7338-5376

Kristina Bjureke

• 元數據提供者

Assistand professor

Natural history museum, University of Oslo

NO

kristina.bjureke@nhm.uio.no

http://orcid.org/0000-0001-6917-8593

Vegar Bakkestuen

• 連絡人

Senior Research Scientist

Norwegian Institute for Nature Research

NO

vegar.bakkestuen@nina.no

http://orcid.org/0000-0003-2573-6615

Rukaya Johaadien

• 使用者

Natural History Museum, University of Oslo

NO

r.s.johaadien@nhm.uio.no

http://orcid.org/0000-0002-2857-2276

地理涵蓋範圍

The species were recorded in 15 polygons of dry, calcareous grassland on Gressholmen island, situated in the inner Oslo fjord. These calcareous grasslands occur naturally fragmented on shallow soils by the Oslo fjord, mainly on exposed and/or grazed Cambrian–Silurian marine sedimentary rock. The climate is relatively warm, with an annual temperature of 5.7 °C (Aune 1993) and annual precipitation of 763 mm (Førland 1993). The area is among the most species-rich in Norway, as this combination of calcareous bedrock and warm summers is rare, and hosts species mostly found further south in Europe. Dry, calcareous grasslands are characterised by drought-tolerant grasses, forbs, shrubs and occasionally trees. Interannual variability plays an important role; intense droughts keep competitive vegetation away from the driest patches. The summer of 2018 was exceptionally dry and hot, visibly impacting the vegetation the following years. Many drought-intolerant plants and young trees died, and some of our habitat specialists came back in full vigour the next season. Though originally defined as naturally tree-less, the borders are transient between naturally tree-less and potentially forested semi-natural habitats kept open by grazing. The habitat patches surveyed also include semi-natural vegetation where dry pine forest could grow. Humans have shaped and impacted the habitats on Gressholmen, probably as long as the Oslo fjord has been settled. Today, the island is artificially connected to two other islands, Heggholmen and Rambergøya. Most of this island trio is protected as nature reserves, but has previously housed a shooting range, Norway’s first main airport, a soap factory with connected houses, and a paint factory. It has likely been grazed by domestic animals while the island was inhabited. From the 1970’s until its eradication in 2007, a large rabbit population occupied the islands and grazed the vegetation heavily. Several summerhouses and a restaurant are still in use, and the islands are a popular destination for day-trips in the summer.

分類群涵蓋範圍

The data set encompasses 49 specialist vascular plant species. The list of habitat specialist species was developed based on flora information of habitat requirements and distributional range, expert opinion and field observations from a large number of polygons. More vascular plant species were recorded in the first two years, and are available upon request. Field surveyors used Lid’s Flora (2005) and Mossberg & Stenberg (2012). Species names were checked and updated using the Species Nomenclature Database, along with common names in Norwegian.

時間涵蓋範圍

計畫資料

The PhD project of Eva Lieungh

參與計畫的人員:

Eva Lieungh

• 作者

http://orcid.org/0000-0003-4009-944X

取樣方法

Field work in 2009 was carried out by KB, OES, and AKW, all experienced botanists. Potential locations of dry, calcareous grassland had been identified by aerial photos and distribution modelling. The locations were then visited by the field work team (KB, OES, and AKW) and either discarded or confirmed and delimited. Polygon coordinate points were recorded using a handheld GPS with an estimated accuracy of 1-10 m. All three in the team looked for species in the same polygon, one being in charge of writing down occurrences. When no new species were found, all three tried to find one more species each before declaring the list complete. Species lists per polygon were noted in a weatherproof notebook. Field work in 2019 and 2020 surveys was carried out by EL alone. Polygons were found using a map with semi-transparent polygons over a recent aerial photo. Species presences were recorded in a spreadsheet on a smartphone with daily backups. Polygons were inventoried by carefully walking back and forth across the polygon to cover the entire area. EL took pictures of each polygon, and of uncertain species using the iNaturalist app.

方法步驟描述:

1. For 2009 and 2019, there is more data available than was described here. These data include all vascular plant species, not just the specialists, and some additional descriptive variables for each polygon.
2. In spite of quality control, some uncertainty remains. Delineating polygons inevitably involves uncertainties, and GPS polygon boundaries were not physically delimited in the field. In addition, changes in patch size may have occurred between 2009 and 2019, due to regrowth or other factors. To a smaller degree this is also an issue between the 2019 and 2020 data. False absences may occur in the data set, which is common in field surveys (Morrison 2016), either from incomplete survey effort, or because the species was not detectable at the time of field work. As flowering phenology varies, early-flowering species (e.g. Veronica arvensis, Draba verna) are especially susceptible to being omitted, even though special care was taken to look for them. Misidentification could also occur, though the availability of previous data and use of trained botanists with expert knowledge of the local flora should minimise this risk.

引用文獻

1. Lid, J., and D. T. Lid. Norsk Flora. Edited by R. Elven. 7th edition. Oslo, NO: Samlaget, 2005. ISBN: 9788252160291
2. Aune, B. (1993). Temperaturnormaler normalperiode 1961-1990 (No. 02/93; Klima, Vol. 2, pp. 1–63). Norwegian Meteorological Institute.
3. Bakkestuen, V., Stabbetorp, O., Molia, A., & M., E. (2014). Hotspot åpen grunnlendt kalkmark i Oslofjordområdet. Beskrivelse av habitatet og forslag til overvåkingsopplegg fra ARKO-prosjektet [Hotspot open clacareos vegetation on shallow soils in the Oslo fjord. Habitat description and suggested monitoring scheme from the ARKO project] (No. 1102; NINA Rapport, Vol. 1102, p. 46). ISBN: 978-82-426-2722-3
4. Evju, M., Blumentrath, S., Skarpaas, O., Stabbetorp, O. E., & Sverdrup-Thygeson, A. (2015). Plant species occurrence in a fragmented grassland landscape: The importance of species traits. Biodiversity and Conservation, 24, 547–561. DOI 10.1007/s10531-014-0835-y
5. Evju, M., Stange, E., Berger, A. L., Blumentrath, S., Endrestøl, A., Olsen, S. L., Skarpaas, O., Stabbetorp, O. E., Stöckmann, F., & Sverdrup-Thygeson. (2016). Når artenes leveområder splittes opp – eksempler fra øyene i indre Oslofjord. Sluttrapport fra strategisk instituttsatsing (SIS) [When species’ habitats are fragmented – examples from the inner Oslo fjord islands.] 2011-2015 (No. 065; p. 54). Norwegian Institute for Nature Research. ISBN: 978-82-426-2885-5
6. Evju, M., & Sverdrup-Thygeson, A. (2016). Spatial configuration matters: A test of the habitat amount hypothesis for plants in calcareous grasslands. Landscape Ecology, 31(9), 1891–1902. https://doi.org/10.1007/s10980-016-0405-7
7. Førland, E. J. (1993). Nedbørnormaler normalperiode 1961-1990 (No. 39/93; Klima, pp. 1–63). Norwegian Meteorological Institute.
8. Wollan, A. K., Bakkestuen, V., Bjureke, K., Bratli, H., Endrestøl, A., Stabbetorp, O. E., Sverdrup-Thygeson, A., & Halvorsen, R. (2011). Åpen grunnlendt kalkmark i Oslofjordområdet – et hotspot-habitat. Sluttrapport under ARKO-prosjektets periode II [Dry, calcareous grasslands in the Oslo fjord area—A hotspot habitat. End report for the ARKO project phase II]. NINA-rapport 713. NINA. ISBN: 978-82-426-2300-3
9. Morrison, L. W. (2016). Observer error in vegetation surveys: A review. Journal of Plant Ecology, 9(4), 367–379. doi:10.1093/jpe/rtv077
10. Halvorsen, R., Skarpaas, O., Bryn, A., Bratli, H., Erikstad, L., Simensen, T., & Lieungh, E. (2020). Towards a systematics of ecodiversity: The EcoSyst framework. Global Ecology and Biogeography, 29(11), 1887–1906. https://doi.org/10.1111/geb.13164
11. iNaturalist. Available from https://www.inaturalist.org. Accessed 22.02.2022.
12. Mossberg, B., & Stenberg, L. (2012). Gyldendals store nordiske flora (2nd ed.). Gyldendal Norsk Forlag. ISBN: 978-82-05-42485-2

額外的詮釋資料