000			02580nab a22003737a 4500
003			EC-PaCDF
005			20171127113703.0
008			160811t20152015xxu|||||||||||||||||eng||
040			_aEC-PaCDF
041			_aeng
082	0	4	_a597.9542 _222
100	1		_aPayne, Brianna G.
245	1	0	_aEnvironmental constraints on haul-out and foraging dynamics in Galápagos marine iguanas.
520	0		_aGalápagos marine iguanas (Amblyrhynchus cristatus) forage in marine habitats but spend most of their time hauled out on land. As they move between desert-like terrestrial haul-out sites and temperate-like marine foraging habitats, these ectotherms experience sudden and dramatic temperature differences accommodated primarily through behavioral instead of physiological adaptations. One of the most important adaptive behaviors is the scheduling of foraging and haulout, the timing of which is modulated by thermal constraints and depends on environmental conditions. We connected haul-out data to differential equation models based on a suite of environmental factors to estimate environmental constraint functions for the timing of foraging and haulout during the non-reproductive season, 30 April–16 May 2011, on a sandy beach and a rocky outcrop at Cabo Douglas, Isla Fernandina. The timing of foraging and haulout was constrained by solar elevation, tide height, heat index, and relative humidity at the sandy site (R 2 = 0.77 to R 2 = 0.80) and solar elevation, tide height, THW index, and hour of day at the rocky site (R 2 = 0.57). We also constructed management models capable of long-range predictions of haulout based on solar elevation, tide height, and hour of day. These models accounted for 72% and 51% of the variability at the sandy and rocky sites, respectively.
546			_aEnglish
653			_aAmblyrhynchus Cristatus.
653			_aDifferentiaL equation model.
653			_aModelo de ecuación diferencial.
653			_aForaging dynamics.
653			_aDinámica de forraje.
653			_aGalápagos marine iguana.
653			_aGalápagos marine iguanas.
653			_aParameterization.
653			_aParameterización.
653			_aTimescale analysis.
653			_aAnálisis de timescal.
700	1		_aHenson, Shadelle M.
700	1		_aHayward, James L.
700	1		_aMegna, Libby C.
700	1		_aVelastegui Chávez, Susana R.
773	0		_tJournal of Coupled Systems and Multiscale Dynamics. _gVol. 3, no. 3 (July 2015), p. 208-218
856	4	0	_uhttps://doi.org/10.1166/jcsmd.2015.1077
942			_2ddc _cARTICLE
999			_c12700 _d12700