The trophodynamics of marine top predators: Current knowledge, recent advances and challenges
MetadataShow full item record
© 2014 Elsevier Ltd.We review present understanding of the spatial and temporal diet variability (trophodynamics) of a range of pelagic marine top predators, at both early and adult life history stages. We begin with a review of methodologies used to advance our understanding of the trophodynamics of marine top predators, particularly in relation to climate change. We then explore how these developments are informing our understanding of the major trophic groups in food webs leading to, and including, marine top predators. We examine through specific examples how the impacts of ocean warming may affect pelagic food web relationships from both top-down and bottom-up perspectives. We examine the potential, in the absence of long-term data sets, of using large-scale spatial studies to examine how potential changes in biological oceanography could impact the biomass and composition of prey species, particularly the role of phytoplankton size spectra. We focus on examples from regions where biotic change with respect to climate change is likely. In particular, we detail the effects of climate change on oceanographic and bathymetric "hotspots" and provide the example involving seabirds in the Benguela Current system. We end by urging the development of international collaborations and databases to facilitate comprehensive ocean-scale understanding of climate impacts on marine top predators.
Showing items related by title, author, creator and subject.
Hobday, A.; Young, J.; Abe, O.; Costa, D.; Cowen, R.; Evans, K.; Gasalla, M.; Kloser, Rudy; Maury, O.; Weng, K. (2013)Climate impacts are now widely reported from coastal marine systems, but less is known for the open ocean. Here we review progress in understanding impacts on large pelagic species presented at an international workshop ...
Ong, J.; Rountrey, A.; Zinke, Jens; Meeuwig, J.; Grierson, P.; O'Donnell, A.; Newman, S.; Lough, J.; Trougan, M.; Meekan, M. (2016)© 2016 John Wiley & Sons Ltd. The effects of climate change are difficult to predict for many marine species because little is known of their response to climate variations in the past. However, long-term chronologies of ...
Leviston, Zoe (2013)Climate change is the most pressing environmental threat faced by humans, yet responses – individually, collectively, and politically – have frequently lacked urgency. Why a threat of such magnitude should meet with ...