caa a22 4500 445819812 CHVBK 20180317145240.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00338-011-0799-2 doi (NATIONALLICENCE)springer-10.1007/s00338-011-0799-2 Thermal ecology on an exposed algal reef: infrared imagery a rapid tool to survey temperature at local spatial scales [Elektronische Daten] [T. Cox, C. Smith] We tested the feasibility of infra-red (IR) thermography as a tool to survey in situ temperatures in intertidal habitats. We employed this method to describe aspects of thermal ecology for an exposed algal reef in the tropics (O‘ahu, Hawai‘i). In addition, we compared temperatures of the surrounding habitat as determined by IR thermography and traditional waterproof loggers. Images of reef organisms (6 macroalgae, 9 molluscs, 1 anthozoan, and 2 echinoderms), loggers, and landscapes were taken during two diurnal low tides. Analysis of IR thermographs revealed remarkable thermal complexity on a narrow tropical shore, as habitats ranged from 18.1 to 38.3°C and surfaces of organisms that ranged from 21.1 to 33.2°C. The near 20°C difference between abiotic habitats and the mosaic of temperatures experienced by reef organisms across the shore are similar to findings from temperate studies using specialized longterm loggers. Further, IR thermography captured rapid temperature fluctuations that were related to tidal height and cross-correlated to wave action. Finally, we gathered evidence that tidal species were associated with particular temperature ranges and that two species possess morphological characteristics that limit thermal stress. Loggers provided similar results as thermography but lack the ability to resolve variation in fine-scale spatial and temporal patterns. Our results support the utility of IR thermography in exploring thermal ecology, and demonstrate the steps needed to calibrate data leading to establishment of baseline conditions in a changing and heterogeneous environment. Springer-Verlag, 2011 Tropical nationallicence Intertidal zones nationallicence Global climate change nationallicence Thermal stress nationallicence Thermography nationallicence Method nationallicence Cox T. Department of Botany, University of Hawai‘i at Mānoa, 3190 Maile Way, Room 101, 96822, Honolulu, HI, USA aut Smith C. Department of Botany, University of Hawai‘i at Mānoa, 3190 Maile Way, Room 101, 96822, Honolulu, HI, USA aut Coral Reefs Springer-Verlag 30/4(2011-12-01), 1109-1120 0722-4028 30:4<1109 2011 30 338 https://doi.org/10.1007/s00338-011-0799-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00338-011-0799-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cox T. Department of Botany, University of Hawai‘i at Mānoa, 3190 Maile Way, Room 101, 96822, Honolulu, HI, USA aut NATIONALLICENCE 700 1- Smith C. Department of Botany, University of Hawai‘i at Mānoa, 3190 Maile Way, Room 101, 96822, Honolulu, HI, USA aut NATIONALLICENCE 773 0- Coral Reefs Springer-Verlag 30/4(2011-12-01), 1109-1120 0722-4028 30:4<1109 2011 30 338 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer