Title: Effects of climate change and habitat fragmentation on ecological communities and metapopulations
Speaker: Prof.Marcel Holyoak University of California at Davis
Time: 10:00--11:30 AM, April 2, 2024
Register at：https://us06web.zoom.us/meeting/register/tZ0ode2hrTsuHNFNeDluYacy1n2gljxp3Eum
URL：https://www.koushare.com/live/details/33132
Read Integrative Conservation at https://onlinelibrary.wiley.com/journal/27709329
Understanding the effects of weather and changes in climate on interacting species is complex because of the variety of direct and indirect influences, and endogenous and exogenous drivers. Spatial dynamics also create the need to quantify population abundances and interactions in multiple locations or habitat types.
In this webinar Professor Holyoak will discuss the spatial dynamics of a plant-insect herbivore system that is affected by multiple types of species interactions. He will report on how populations show local extinctions depending on rainfall and species interactions, and how over 35 years the system has shifted in the periodicity of rainfall fluctuations (cycles). The increase in rainfall cycle length has been associated with changes in the Pacific Decadal Oscillation and produced a change in the period of caterpillar population fluctuations.
Professor Holyoak will also discuss the results of an investigation into patterns of herbivore movement and consequences for spatial dynamics. Overall, the results illustrate the changes in spatial dynamics of interacting species because of weather.
