OOS 22 - Landscape Demography: Heterogeneity Across Space and Scale

Wednesday, August 10, 2016: 1:30 PM-5:00 PM
Grand Floridian Blrm E, Ft Lauderdale Convention Center
Jessica Gurevitch, Stony Brook University
Gordon A. Fox, University of South Florida; and Norma L. Fowler, University of Texas at Austin
Norma L. Fowler, University of Texas at Austin
Landscape demography is the study of heterogeneity in the demographic properties of populations and their drivers across landscapes, and how the relationships among these properties and their drivers influence demographic outcomes at other scales. This new concept builds on a rich tradition of work on heterogeneity and scale in ecological processes. This session has the potential to crystallize this new area of research and bring it to the attention of a wider group of ecologists by gathering a diversity of participants working in this area on a diversity of systems. Demographic studies encompass applied and fundamental ecological questions, driven by policy and management (immunizations, invasions) and by curiosity. While most demographic studies in ecology have focused on a single population or a small number of populations, demographic processes and their drivers are heterogeneous and vary across spatial scales. Unfortunately, extrapolating from information about the demography of single populations will often not tell us what we most want to know. The dynamics of an ensemble of populations over a landscape or region are likely to depend on the collective dynamics of many local populations, and demographic properties and outcomes may vary across scales in ways that are not currently well understood. Some of the most critical dynamics may occur at the larger spatial scales of landscapes and regions, as well as across multiple spatial scales. The study of demographic processes across populations and at different scales can address questions that individual studies of local populations cannot, potentially yielding important new insights into a number of critical ecological questions. This new conceptual focus of landscape demography differs from that of metapopulation ecology in a number of important ways. Landscape demography focuses on heterogeneity in demographic characteristics and their drivers among populations and across spatial scales, while metapopulation studies are concerned largely with patch occupancy, and do not focus on demography or on demographic variation at different scales. We believe that the approach offered by landscape demography will be of broad interest to ESA attendees with both fundamental and conservation expertise, and will stimulate the development of theory, empirical work, and new areas of inquiry. Landscape demography may provide quantitative predictions for many important phenomena, including biological invasions, declines in threatened or endangered species, range shifts of native or invasive species in response to climate change, and natural heterogeneity and fluctuations in numbers and distributions of populations over time.
1:30 PM
 Adaptation of boreal tree species to climate: One piece in the puzzle of landscape demography
Katharina Liepe, University of Alberta; Andreas Hamann, University of Alberta; Pia Smets, University of British Columbia; Connor R. Fitzpatrick, University of Toronto Mississauga; Sally N. Aitken, University of British Columbia
1:50 PM
 Landscape demography: A novel perspective on some longstanding problems
Jessica Gurevitch, Stellenbosch Institute for Advanced Studies; Gordon A. Fox, Stellenbosch Institute for Advanced Studies; Norma L. Fowler, University of Texas at Austin; Catherine H. Graham, Stony Brook University
2:10 PM
 Environmental drivers of demographic variation across the global geographical range of 26 plant species
Martina Treurnicht, University of Hohenheim; Jörn Pagel, University of Hohenheim; Karen Esler, Stellenbosch University; AnneLise Schutte-Vlok, University of Johannesburg; Henning Nottebrock, South Dakota State University; Tineke Kraaij, Nelson Mandela Metropolitan University; Anthony G. Rebelo, South African National Biodiversity Institute; Frank M. Schurr, University of Hohenheim
2:30 PM
 Predicting plant population performance from climate suitability, proximity and phylogeny
Yvonne Buckley, Trinity College Dublin; Anna Maria Csergo, Trinity College Dublin; Shaun R. Coutts, Trinity College Dublin
3:10 PM
3:40 PM
 Global plant and animal demography: Tearing the curtain and filling up the gap
Roberto Salguero-Gomez, The University of Queensland; Owen Jones, University of Southern Denmark
4:00 PM
 Predicting landscape-level distributions: Integrating demography, fire, and dryness with patch and annual variation
Pedro F. Quintana-Ascencio, University of Central Florida; Stephanie M. Koontz, Archbold Biological Station; Stacy A. Smith, Archbold Biological Station; Vivienne Sclater, Archbold Biological Station; Eric S. Menges, Archbold Biological Station
4:40 PM
 Developing a theory of landscape demography
Gordon A. Fox, University of South Florida; Cang Hui, Stellenbosch University; Jessica Gurevitch, Stellenbosch Institute for Advanced Studies