Marine Ecology Progress Series | VOL. 356
Read

Endothermy, ectothermy and the global structure of marine vertebrate communities

Publication Date Mar 18, 2008

Abstract

Birds and mammals are the leading marine predators at high latitudes, while sharks and other large fish occupy top positions in tropical waters. The present study proposes that temperature- dependent predation success (TPS) explains global patterns of marine vertebrate community struc- ture. Burst speed increases with temperature in ectotherms but is independent of temperature in endotherms. If capture success depends on relative swimming speeds of predator and prey, ecto- thermic prey will be more vulnerable to attack by endothermic predators at low temperatures. Conversely, high temperatures should enhance the ability of ectothermic predators to prey on endotherms. Pursuit-diving seabirds (penguins, auks and some cormorants) and pinnipeds (seals and sea lions) are ubiquitous in ocean waters with summer surface temperatures cooler than the mid- teens to low 20s (°C) but are virtually absent in warmer regions. We suggest that the near-absence of these animals at low latitudes is due to TPS, as warm water increases the difficulty of capturing fish prey and increases vulnerability to predation by large ectothermic and partially endothermic sharks. Pursuit-diving birds and pinnipeds are virtually absent from warm temperate and tropical waters, even where primary productivity and fisheries data suggest that food supplies are ample. This indi- cates that the low productivity that prevails in much of the tropical zone cannot explain the world- wide distributional patterns of pursuit-diving birds and pinnipeds. Endothermy in marine...

Concepts

Tropical Waters Pursuit-diving Seabirds Endothermic Predators Warm Temperate Sea Lions Animal Size Warmer Regions Cooler Temperatures Warm Temperate Waters Low Latitudes

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between Nov 21, 2022 to Nov 27, 2022

R DiscoveryNov 28, 2022
R DiscoveryArticles Included:  2

No potential conflict of interest was reported by the authors. The conception and design of the study, acquisition of data, analysis and interpretatio...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19

ONE PROBLEM . ONE PURPOSE . ONE PLACE

Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on “as is” basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The Copyright Law.