{"@context": "https://schema.org", "@type": "Dataset", "@id": "https://doi.org/10.5878/6f3c-xn85", "identifier": [{"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/6f3c-xn85"}, {"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/ahat-rz88"}], "isPartOf": ["https://snd.se/catalogue/collection/phenology-observations-and-studies"], "version": "1", "name": [{"@value": "Nature's Calendar: Spring Check - phenological observations made by Citizen Scientists", "@language": "en"}, {"@value": "Naturens kalender: V\u00e5rkollen - fenologiska observationer av medborgarforskare", "@language": "sv"}], "description": [{"@value": "Nature's Calendar (www.naturenskalender.se, in Swedish only) is run by the Swedish National Phenology Network, a consortium of Swedish universities, governmental agencies and NGO:s. The Swedish University of Agricultural Sciences hosts the network. The main task for the Nature's calendar is to collect observations of different spring and autumn signs appearing during the vegetation season.\n\nData about the nature's calendar is collected in two ways, the long-term environmental monitoring through \"Calendars\", where phenological observations are reported all through the year, and through \"Checks\", where phenology observations are reported during short-time campaigns, giving a snapshot of the phenological status at a certain time of the year. The long-term environmental monitoring is performed by citizen scientists and professional observers at research stations and like. Three calendars have been launched in the Nature's Calendar; the Plant's Calendar (from 2008), the Bird's Calendar (from 2016) and the Beekeeper's Calendar (between 2015 and 2018). Starting in 2015, a campaign called \"V\u00e5rkollen\" (i.e. \"Spring Check\") has been run during two (April 30 - May 1) or three (April 29 - May 1) days every year. The campaign, where the phenology of only 6 species (also available in the historical phenology dataset)  gives a snapshot of how spring has proceeded all over the country at this time. \n\nAims\nPhenological changes in nature gives the most obvious signs of the biological effect of climate change. Spring signs, autumn signs, the start, end and length of the growing season, and many other signs in nature are basic properties of ecosystems. Also, the interaction between different organisms, e.g. flowering plants and pollinators, are affected if the nature's calendar changes. Observations reported to the Nature's Calendar can be compared to similar observations collected for more than 100 years ago (see Swedish Historical Phenology Dataset, published in another place at this platform), to detect evidence of phenological shifts over time that can be connected to climate change.\n\nThe aim of the Nature's Calendar is to collect phenological data from the first spring sign to the last autumn sign, to be able to offer nation-wide data to everyone interested, to facilitate research, environmental assessments, the evaluation of environmental goals, etc, to be better prepared to meet the effects of climate change. For example, the data collected in Nature's Calendar is continuously used to evaluate the Swedish environmental objective Reduced Climate through the indicator called \u201dGrowing Season\u201d (www.slu.se/vaxternasvaxtsasong).\n\nThree datasets are made available through SND: the Plant's Calendar, the Beekeeper's Calendar and the Spring Check datasets. They all originate from the same database in the Nature's Calendar, while the Bird's Calendar observations are published through the Swedish Species Observation System Portal (www.artportalen.se).\n\nIn the Spring Check, Citizen Scientist's have reported observations of how far the development of \n- flowering of Liverleaf, Colt's-foot, Wood Anemone, Goat Willow and Bird Cherry \n- budburst of birch\nhave progressed until Valpurgis Day (some years between April 29 and May 1, some years between April 30 and May 1).\n\nThe aim with the data collection is to obtain nationwide data that can provide information to understand, track changes and predict effects of climate change on natural plants in Sweden by studying the progress of some species all over the country at one and the same date every year, and compare the current progress with what have been seen in historical records of the same plants.\n\nThe dataset includes one file with observation data (spring_check_2015-2021.csv), one PDF file (metadata_spring_check_2015-2021.pdf) with metadata that describes how the included parameters should be interpreted and lists of included species and phases, and one PDF file (Varkollen_folder_2022.pdf) which is the instruction given to the observers (in Swedish, only). The observation data file includes totally 54 305 observations.\n\nCoordinates of the observation locations have been made diffuse, to make it impossible to trace back the observations to the observer (coordinates are rounded to 3 decimals).", "@language": "en"}, {"@value": "Naturens kalender (www.naturenskalender.se) drivs av Svenska fenologin\u00e4tverket, som \u00e4r ett n\u00e4tverk med flera universitet, myndigheter och f\u00f6reningar. SLU, Sveriges lantbruksuniversitet, \u00e4r n\u00e4tverkets huvudman.\nHuvuduppgiften f\u00f6r Naturens kalender \u00e4r att samla in observationer av v\u00e5rtecken, h\u00f6sttecken och annat i naturens kalender. \n\nData om naturens kalender samlas in p\u00e5 tv\u00e5 olika s\u00e4tt. Dels bedrivs en l\u00e5ngsiktig milj\u00f6\u00f6vervakning i form av \u201dkalendrar\u201d d\u00e4r rapporter om fenologiska observationer samlas in \u00f6ver hela \u00e5ret, dels genomf\u00f6r vi korta \u201dkollar\u201d d\u00e4r vi tar en \u00f6gonblicksbild av naturens kalender i landet vid en viss tidpunkt p\u00e5 \u00e5ret. Den l\u00e5ngsiktiga milj\u00f6\u00f6vervakningen genomf\u00f6rs av frivilliga och professionella medborgarforskare, s.k. fenologiv\u00e4ktare, i V\u00e4xtkalendern (fr\u00e5n 2008), F\u00e5gelkalendern (fr\u00e5n 2016) och Bikalendern (2015-2018). Med b\u00f6rjan 2015 genomf\u00f6rs V\u00e5rkollen under Valborgshelgen, en 2-dagars (30/4-1/5) eller 3-dagars (29/4-1/5) kampanj d\u00e4r vi med hj\u00e4lp av medborgarforskares observationer fr\u00e5n hela landet f\u00e5r en \"\u00f6gonblicksbild\" av hur l\u00e5ngt v\u00e5ren kommit vid den tidpunkten. I V\u00e5rkollen samlas enbart fenologiska observationer p\u00e5 6 arter, vilka \u00e4ven f\u00f6rekommer i det historiska datasetet, in.\n\nMotiv och syfte\nFenologiska f\u00f6r\u00e4ndringar i naturen \u00e4r den tydligaste biologiska effekten av en klimatf\u00f6r\u00e4ndring. V\u00e5rtecken, h\u00f6sttecken, v\u00e4xts\u00e4songens start, slut, l\u00e4ngd och andra h\u00e4ndelser i naturens kalender \u00e4r kopplade till grundl\u00e4ggande egenskaper hos ekosystemen. Samspelet mellan olika arter, t.ex. v\u00e4xterna och deras pollinat\u00f6rer, p\u00e5verkas ocks\u00e5, om naturens kalender \u00e4ndras. En f\u00f6r\u00e4ndring av naturens kalender f\u00e5r ocks\u00e5 effekt f\u00f6r landets alla pollenallergiker eftersom b\u00e5de tidpunkten och l\u00e4ngden p\u00e5 pollenperioden \u00e4ndras. Observationer som samlas in i Naturens kalender kan j\u00e4mf\u00f6ras med motsvarande observationer som gjordes f\u00f6r \u00f6ver 100 \u00e5r sedan (se Svenskt historiskt fenologidataset, som publicerats p\u00e5 annan plats p\u00e5 SND), f\u00f6r att uppt\u00e4cka fenologiska f\u00f6r\u00e4ndringar \u00f6ver tid som kan bero p\u00e5 klimatf\u00f6r\u00e4ndringar.\n\nM\u00e5let med Naturens kalender \u00e4r att samla in data om allt fr\u00e5n f\u00f6rsta v\u00e5rtecken till sista h\u00f6sttecken, s\u00e5 att vi kan erbjuda landsomfattande data till alla intresserade, f\u00f6r att underl\u00e4tta forskning, milj\u00f6m\u00e5lsarbete och information och g\u00f6ra oss b\u00e4ttre rustade att m\u00f6ta klimatf\u00f6r\u00e4ndringens effekter. Data fr\u00e5n Naturens kalender anv\u00e4nds exempelvis till uppf\u00f6ljningen av de svenska milj\u00f6m\u00e5len genom milj\u00f6m\u00e5lsindikatorn \u201dV\u00e4xternas v\u00e4xts\u00e4song\u201d (www.slu.se/vaxternasvaxtsasong). \n\nVia SND tillg\u00e4ngligg\u00f6rs tre dataset: V\u00e4xtkalendern, Bikalendern och V\u00e5rkollen, som alla kommer fr\u00e5n samma databas i Naturens kalender. F\u00e5gelkalenderns data publiceras i Artportalen (www.artportalen.se).\n\nI V\u00e5rkollen har medborgarforskare rapporterat in observationer av hur l\u00e5ngt utvecklingen av\n- blomning hos tussilago, bl\u00e5sippa, vitsippa, s\u00e4lg och h\u00e4gg\n- l\u00f6vsprickning hos bj\u00f6rk\nhar kommit vid tidpunkten f\u00f6r Valborg (vissa \u00e5r 29/4-1/5, andra \u00e5r enbart 30/4-1/5).\n\nM\u00e5let \u00e4r att bidra med landsomfattande data f\u00f6r att b\u00e4ttre kunna f\u00f6lja, f\u00f6rst\u00e5 och f\u00f6rutse klimatf\u00f6r\u00e4ndringens effekter p\u00e5 vilda v\u00e4xter i Sverige genom att studera statusen \u00f6ver hela landet f\u00f6r de ing\u00e5ende arterna och faserna vid en och samma tidpunkt och j\u00e4mf\u00f6ra dessa med historiska observationsdata f\u00f6r samma arter.\n\nDatasetet inneh\u00e5ller en fil med observationsdata (spring_check_2015-2021.csv), en PDF-fil (metadata_spring_check_2015-2021.pdf) med metadata som beskriver ing\u00e5ende variabler och listor p\u00e5 ing\u00e5ende arter och faser, samt en PDF-fil (varkollen_folder_2022.pdf), som \u00e4r den instruktion som de som rapporterar kan l\u00e4sa. Observationsdatafilen inneh\u00e5ller totalt 54 306 observationer.\n\nKoordinaterna f\u00f6r observationsplatserna har gjorts diffusa f\u00f6r att ta bort m\u00f6jligheten att sp\u00e5ra observat\u00f6ren (avrundning till 3 decimaler).", "@language": "sv"}], "creator": [{"@type": "Organization", "@id": "https://snd.se/catalogue/search/Svenska Botaniska F\u00f6reningen", "sameAs": "https://snd.se/catalogue/search/Svenska Botaniska F\u00f6reningen", "name": [{"@value": "Swedish Botanical Association", "@language": "en"}, {"@value": "Svenska Botaniska F\u00f6reningen", "@language": "sv"}]}, {"@type": "Person", "@id": "https://orcid.org/0000-0003-1709-400X", "sameAs": "https://orcid.org/0000-0003-1709-400X", "name": "Ola Langvall", "email": "ola.langvall@slu.se", "affiliation": [{"@type": "Organization", "name": [{"@value": "Swedish University of Agricultural Sciences, Unit for Field-based Forest Research", "@language": "en"}, {"@value": "Sveriges lantbruksuniversitet, Enheten f\u00f6r 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