{"@context": "https://schema.org", "@type": "Dataset", "@id": "https://doi.org/10.5878/qkwj-2d05", "identifier": [{"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/qkwj-2d05"}, {"@type": "PropertyValue", "unitCode": "https://www.rikstermbanken.se/termposter/1848/diarienummer", "unitText": "principalRegistrationNumber", "value": "SLU.esf.2025.4.2.I\u00c4-1"}, {"@type": "PropertyValue", "unitCode": "DOI", "value": "https://doi.org/10.5878/zfj9-ab87"}], "isPartOf": ["https://snd.se/catalogue/collection/phenology-observations-and-studies"], "version": "1", "name": [{"@value": "Nature's Calendar: Early Summer Check - phenological observations made by Citizen Scientists", "@language": "en"}, {"@value": "Naturens kalender: F\u00f6rsommarkollen - 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 (SWE-NPN), a consortium of Swedish universities, governmental agencies and non-governmental organisations. The Swedish University of Agricultural Sciences (SLU) hosts the network and is part of the university's program for environmental monitoring and assessment. The main task for the Nature's calendar is to collect observations of different spring and autumn signs appearing during the vegetation season. SWE-NPN is connected to the monitoring of the Swedish Environmental Objectives, mainly concerning the objective Reduced Climate Impact, but is also collaborating with networks in Europe (through the Pan-European Phenology database - PEP725) and internationally (through the International Society of Biometeorology).\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. Since 2022, a campaign called \"F\u00f6rsommarkollen\" (i.e. \"Early Summer Check\") has also been run June 5-6 every year  (the World Environment Day and the Swedish National Day, respectively). In the Early Summer Check, Citizen Scientist's have reported observations of how far the development of flowering of Bird Cherry, Rowan, Lilac, Little Bluebell, Daisy and Lily of the Valley have progressed. All species, except Little Bluebell, has also been reported in the historical dataset mentioned below. Little Bluebell was included, as it recently was elected to be the Swedish National Flower.\n\nThe Early Summer Check campain is performed by two SWE-NPN partners, SLU and the Swedish Botanical Association (SBF), where SLU provides the technical  platform and data analyses and SBF produce folders and by hosting regional contacts for the press. The results are made available to the public by press releases directly after the campain is finished.\n\nAims\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. Observations reported to the Nature's Calendar can be compared to similar observations collected for more than 100 years ago (see the Swedish Historical Phenology Dataset in \"Related Reseach Data\"), to detect evidence of phenological shifts over time that can be connected to climate change.\n\nThe aim with the data collection of the Early Summer Check 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 (early_summer_check_2022-2024.csv), one PDF file (metadata_early_summer_check_2022-2024.pdf) with metadata that describes how the included parameters should be interpreted and lists of included species and phases, and one PDF file (forsommarkollen_folder_2024.pdf) which is the instruction given to the observers (in Swedish, only). The observation data file includes totally 13 933 observations.", "@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. Sveriges lantbruksuniversitet (SLU) \u00e4r n\u00e4tverkets huvudman och ing\u00e5r i milj\u00f6analysprogrammet Klimat. Huvuduppgiften f\u00f6r Naturens kalender \u00e4r att samla in observationer av v\u00e5rtecken, h\u00f6sttecken och annat i naturens kalender. N\u00e4tverkets verksamhet \u00e4r i f\u00f6rsta hand kopplat till Sveriges milj\u00f6kvalitetsm\u00e5l Begr\u00e4nsad klimatp\u00e5verkan, men ing\u00e5r \u00e4ven i europeiska (genom Pan-European Phenology database - PEP725) och intermationella (genom International Society of Biometeorology) samarbeten kring fenologisk forskning och milj\u00f6\u00f6vervakning.\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. Med b\u00f6rjan 2022 genomf\u00f6rs F\u00f6rsommarkollen som en 2-dagars kampanj 5-6 juni, d.v.s. i samband med V\u00e4rldsmilj\u00f6dagen och Sveriges nationaldag, d\u00e4r vi med hj\u00e4lp av medborgarforskares observationer fr\u00e5n hela landet f\u00e5r en \"\u00f6gonblicksbild\" av hur l\u00e5ngt sommaren kommit vid den tidpunkten. I F\u00f6rsommarkollen g\u00f6rs observationer av hur l\u00e5ngt utvecklingen av blomning hos h\u00e4gg, r\u00f6nn, syr\u00e9n, pr\u00e4stkrage och liljekonvalj, vilka \u00e4ven f\u00f6rekommer i det historiska datasetet (se nedan), samt p\u00e5 liten bl\u00e5klocka, som \u00e4r Sveriges nationalblomma.\n\nF\u00f6rsommarkollen genomf\u00f6rs av tv\u00e5 partners i Svenska fenologin\u00e4tverket, SLU och Svenska Botaniska F\u00f6reningen. SLU st\u00e5r f\u00f6r teknisk plattform och databearbetning, medan SBF st\u00e5r f\u00f6r informationsmaterial och regional medverkan genom sina lokalf\u00f6reningar. B\u00e5da organisationerna bidrar med information till allm\u00e4nheten via pressmeddelanden inf\u00f6r F\u00f6rsommarkollen och med resultaten efter\u00e5t.  \n\nMotiv och syfte\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, vilket kan g\u00f6ra oss b\u00e4ttre rustade att m\u00f6ta klimatf\u00f6r\u00e4ndringens effekter. Observationerna i Naturens kalender kan j\u00e4mf\u00f6ras med motsvarande observationer som gjordes f\u00f6r \u00f6ver 100 \u00e5r sedan (se Svenskt historiskt fenologidataset i \"Relaterade forskningsdata\"), f\u00f6r att uppt\u00e4cka fenologiska f\u00f6r\u00e4ndringar \u00f6ver tid som kan bero p\u00e5 klimatf\u00f6r\u00e4ndringar.\n\nM\u00e5let med F\u00f6rsommarkollen \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 (early_summer_check_2022-2024.csv), en PDF-fil (metadata_early_summer_check_2022-2024.pdf) med metadata som beskriver ing\u00e5ende variabler och listor p\u00e5 ing\u00e5ende arter och faser, samt en PDF-fil (forsommarkollen_folder_2024.pdf), som \u00e4r den instruktion som de som rapporterar kan l\u00e4sa. Observationsdatafilen inneh\u00e5ller totalt 13 933 observationer.", "@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 skoglig f\u00e4ltforskning", "@language": "sv"}], "@id": "https://ror.org/02yy8x990"}]}], "contributor": [{"@type": "Organization", "@id": 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