Bird Breeding Phenology in Southeastern Wisconsin

Authors: Jana Viel*, UW-Milwaukee
Topics: Biogeography, Physical Geography, Climatology and Meteorology
Keywords: phenology, birds, climate, wisconsin, biography
Session Type: Paper
Day: 4/12/2018
Start / End Time: 8:00 AM / 9:40 AM
Room: Astor Ballroom I, Astor, 2nd Floor
Presentation File: No File Uploaded


The impacts of climate change on the phenology of organisms at different trophic levels vary.Temporal and spatial mismatches due to differing phenological responses between predators and prey can result in cascading asynchronous phenological change within food webs and alter ecosystem dynamics.
The objective of this research is to examine phenological change at sites in Ozaukee and Milwaukee Counties in Wisconsin by investigating indicators of spring phenology among three trophic levels; birds, insects, and plants. Due to the complexity of multi-trophic phenology, this research seeks to first investigate the influence of local weather variables and regional weather patterns on each trophic level in isolation to unveil general trends related to climate change over time. Then, associations between trophic levels will be assessed in order to examine ecosystem-level phenological change.
This will be accomplished by adding contemporary data to and filling gaps in long-term phenological datasets from a myriad of sources. The focus of this paper is on preliminary findings, and reflections on fieldwork during the first two years of the study in 2016 and 2017. The third and final season will commence at the end of April 2018.

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