Chaimungkhun Johansson, Jennifer, 2021. Can ambient temperature patterns predict fireweed phenology?. Second cycle, A2E. Umeå: SLU, Dept. of Wildlife, Fish and Environmental Studies
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Abstract
The Earth’s climate has been changing with greater intensity and frequency in recent years. These changes, especially the warmer climate, have advanced plant phenology, thus increasing the risk of interspecific temporal mismatches, for example pollinators and pollinated flower species. This study’s aim is to find out if temperature accumulations can be used to predict Chamaenerion angustifolium flowering phenology. A novel short-term camera trap dataset and a 13-year old long-term dataset of C. angustifolium flowering were used in conjunction with air temperature from an ensemble dataset to calculate accumulated growing degree-days. A comparison between the short- and long-term dataset was required in case the two datasets wouldn’t provide similar result. A Mann-Whitney U-test suggested that there was no significant difference between the two methods of collecting flowering phenology data. A significant difference was provided by the Welch’s t-test in accumulated growing degree-days between flowering and non-flowering sites, which suggests that temperature accumulation could be used to predict flowering phenology of C. angustifolium.
Main title: | Can ambient temperature patterns predict fireweed phenology? |
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Authors: | Chaimungkhun Johansson, Jennifer |
Supervisor: | Holmes, Sheila and Hofmeester, Tim and Cromsigt, Joris |
Examiner: | Neumann Sivertsson, Wiebke |
Series: | Examensarbete / SLU, Institutionen för vilt, fisk och miljö |
Volume/Sequential designation: | 2021:2 |
Year of Publication: | 2021 |
Level and depth descriptor: | Second cycle, A2E |
Student's programme affiliation: | SY001 Forest Science - Master's Programme 300 HEC |
Supervising department: | (S) > Dept. of Wildlife, Fish and Environmental Studies |
Keywords: | fireweed, Chamaenerion angustifolium, growing degree-days, camera trap, phenology |
URN:NBN: | urn:nbn:se:slu:epsilon-s-16434 |
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-16434 |
Subject. Use of subject categories until 2023-04-30.: | Nature conservation and land resources |
Language: | English |
Deposited On: | 18 Feb 2021 11:08 |
Metadata Last Modified: | 19 Feb 2021 02:00 |
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