{999A9551-D701-4CF5-9373-131D3DD8D969} 20050512 19291400 FALSE 20060710 17161900 20060815 12091700 PlatformVesselsSightingsUser defined Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722 en Sperm whale <i>Physeter macrocephalus</i> habitat preferences are still poorly understood in the Mediterranean, despite the population being classified as ‘Endangered’ by the IUCN. Techniques to make the best use of multiple data sources are important in improving this situation. This work provides a detailed evaluation of sperm whale distribution and habitat use around the Balearic Islands using a novel analytical framework that combines transect and follow data while accounting for any autocorrelation present. During dedicated research cruises (2003 to 2008), sperm whales were located by listening at regular intervals along a search track and subsequently followed acoustically. Sperm whales were encountered 56 times and followed for periods ranging from a few hours to 3 d. Logistic Generalized Additive Models were used to model the probability of whale presence across the study area as a function of environmental variables, and Generalized Estimating Equations were used to account for autocorrelation. The results suggest that sperm whales do not use the region uniformly and that topography plays a key role in shaping their distribution. Moreover, solitary individuals were found to use the habitat differently from groups. This segregation appeared to be driven by water temperature and might reflect different needs or intraspecific competition. By shedding light on sperm whale habitat preference in such a critical area, this study represents an important step towards the implementation of conservation measures for this population.In this study we develop a novel analytical framework that can make use of combined acoustic and tracking data and account for autocorrelation in such data. We use a multi-scale approach to investigate the pattern of sperm whale distribution around the Balearic archipelago, and the potential differences in habitat selection by single individuals versus groups.Exact numbers for the presence of groups were not available, so an abundance of "2" was used as a conservative estimate. The sequences of consecutive presence points do not represent new animals being encountered, but follows of the same animals. Pirotta, E. and L. Rendell2011https://doi.org/10.82144/cce32274OBIS-SEAMAP807http://seamap.env.duke.edu/dataset/807OBIS-SEAMAPVersion 1.0.0 ground condition2003-08-042008-07-26 CompleteNone planned 0.62709514.78475540.86520838.16097320.62709514.78475538.160973240.865208 Open public unless otherwise noted. See Use Constraints for details. 1. Not to use data obtained from OBIS-SEAMAP in any publication, product, or commercial application without proper attribution to the original data provider(s) and OBIS-SEAMAP unless the datasets are explicitly shown under the CC0 policy. Citations or credits are suggested as attribution. If the data you downloaded come from multiple datasets, a citation or credit to each of the datasets is required. Suggested citation for this dataset Pirotta, E. and L. Rendell. 2011. SMRU sperm whale distribution around the Balearic Islands 2003-2008. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/807) on yyyy-mm-dd. Suggested citation for OBIS-SEAMAP: Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography 22(2):104-115 2. To forward the citation of any publication / report that made use of the data / tools provided by OBIS-SEAMAP for inclusion in our list of references. 3. Not to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. 4. The burden for determining fitness for use of the downloaded data for any analyses lies entirely with the user. OBIS-SEAMAP or the original data providers do not support outcomes of your analyses that used the data you downloaded from OBIS-SEAMAP. 5. To consider inclusion of the accompanying transect (effort) dataset if available into the methodology of your analyses. 6. Not to redistribute the data you downloaded from OBIS-SEAMAP through any media without contect from OBIS-SEAMAP and the original data providers unless the datasets are explicitly shown under the CC0 policy. Shapefile Enrico PirottaSea Mammal Research Unit, Scottish Oceans Institute, School of Biology mailing and physical address pirotta.enrico@gmail.com Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassMammalia179913SubclassTheria179916InfraclassEutheria179925OrderCetacea180403SuborderOdontoceti180404FamilyPhyseteridae180486GenusPhyseter180487SpeciesPhyseter macrocephalus180488Luke Rendell and Enrico Pirotta, Sea Mammal Research Unit (SMRU) Pirotta, E., J. Matthiopoulos, M. Mackenzie, L. Scott-Hayward and L. Rendell2011http://www.int-res.com/articles/meps_oa/m436p257.pdfMarine Ecology Progress Series436: 257–272Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach2009Oceanography22(2):104-115http://www.tos.org/oceanography/article/obis-seamap-the-world-data-center-for-marine-mammal-sea-bird-and-sea-turtle en FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time Ei Fujioka Nicholas School of Environment, Duke University mailing and physical addressDurhamNC27708

A328, LSRC

USA 919-613-8021 seamap-contact@duke.edu Connie KotDuke University http://www.nbii.gov/Biological Data Profilehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile 2011-12-09 2011-12-13 ISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset Downloadable Data 0.021 0.021 OBIS-SEAMAP Free Go to the OBIS-SEAMAP web site and click on [Datasets] tab appearing on upper left. Nicholas School of Environment, Duke Univ. OBIS-SEAMAP mailing and physical address DurhamNCUSA

A328, LSRC

27708 919-613-8021 seamap-contact@duke.edu Not to hold OBIS-SEAMAP liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. Also please refer to Use Constraints. 002 Local Area Network 0.021 Shapefile Vector GCS_WGS_1984Decimal degrees0.0001670.000167D_WGS_1984WGS_19846378137.000000298.257224GCS_WGS_1984 This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.Enrico Pirotta, Sea Mammal Research Unit (SMRU)oidUnique ID number (generated by SEAMAP)recnumRecord number (generated by SEAMAP)obs_dateObserved dateobs_timeObserved timelatitudeLatitude of observationlongitudeLongitude of observationpresAcoustic contact: presence or absence (1 or 0)groupingGroup or singlesp_obsSpecies observedsp_tsnSpecies ITIS TSNobs_countObserved count (1 for single, 2 for groups)notesExact group size was not available, and an abundance of "2" was used as a conservative estimate. The sequences of consecutive presence points do not represent new animals being encountered, but follows of the same animals.20060815