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griddap Subset tabledap Make A Graph wms files Title Summary FGDC ISO 19115 Info Background Info RSS Email Institution Dataset ID
https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay15.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay15 https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay15.graph https://pallter-data.marine.rutgers.edu/erddap/files/IsotopicNicheChickPygoscelisPenguinsDay15/ Isotopic signatures of diet provisioned to 15 day old chick Pygoscelis penguins reared along the Palmer Archipelago near Palmer Station, 2007-2009 We evaluated regional variation in reproductive isotopic niche among breeding populations of Adélie (Pygoscelis adeliae), chinstrap (P. antarctica), and gentoo (P. papua) penguins west of the Antarctic Peninsula (AP) to test a hypothesis for sea ice-associated food-web correlates of breeding population change. We rely on signatures of naturally occurring carbon (13C/12C, δ13C) and nitrogen (15N/14N, δ15N) stable isotopes (SI) as integrated proxies of penguin trophic foraging and food-web structure. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. At approximate an average nest age of five and 15 days, offspring from study nests were captured and quickly blood sampled (<= ~500 µl for day five chicks, and <= ~1 ml for day 15 chicks) from the tarsus vein using a sterile needle and heparinized capillary tubes for day five chicks, and a sterile 3 ml syringe and heparinized infusion needle for day 15 chicks, again to obtain blood tissue for SI analyses. Study nests were monitored for chick survival to 25 days. At five weeks into chick-rearing, older crèched chicks of all three species were captured and quickly blood sampled from study rookeries near Anvers Island. Handling of crèched chicks occurred over a one or two day period, which varied seasonally and by species depending on nest initiation dates. Adélie penguin chicks at Avian Island were sampled on the same day Anvers Island Adélie penguin chicks were sampled. Adélie penguin chicks at Charcot Island, sampled during one season only on 25 January 2010, were handled three days after Anvers Island and Avian Island Adélie penguin chicks were sampled that year, i.e., 22 January 2010. Blood samples from crèched chicks (~1 ml) were taken from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle following sampling procedures used for adult penguins to obtain blood tissue for SI analyses. Stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (Date Day 15 Chicks Observed, seconds since 1970-01-01T00:00:00Z)\n... (11 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/info/IsotopicNicheChickPygoscelisPenguinsDay15/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/IsotopicNicheChickPygoscelisPenguinsDay15.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=IsotopicNicheChickPygoscelisPenguinsDay15&showErrors=false&email= National Science Foundation IsotopicNicheChickPygoscelisPenguinsDay15
https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay5.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay5 https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguinsDay5.graph https://pallter-data.marine.rutgers.edu/erddap/files/IsotopicNicheChickPygoscelisPenguinsDay5/ Isotopic signatures of diet provisioned to 5 day old chick Pygoscelis penguins reared along the Palmer Archipelago near Palmer Station, 2007-2009 We evaluated regional variation in reproductive isotopic niche among breeding populations of Adélie (Pygoscelis adeliae), chinstrap (P. antarctica), and gentoo (P. papua) penguins west of the Antarctic Peninsula (AP) to test a hypothesis for sea ice-associated food-web correlates of breeding population change. We rely on signatures of naturally occurring carbon (13C/12C, δ13C) and nitrogen (15N/14N, δ15N) stable isotopes (SI) as integrated proxies of penguin trophic foraging and food-web structure. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. At approximate an average nest age of five and 15 days, offspring from study nests were captured and quickly blood sampled (<= ~500 µl for day five chicks, and <= ~1 ml for day 15 chicks) from the tarsus vein using a sterile needle and heparinized capillary tubes for day five chicks, and a sterile 3 ml syringe and heparinized infusion needle for day 15 chicks, again to obtain blood tissue for SI analyses. Study nests were monitored for chick survival to 25 days. At five weeks into chick-rearing, older crèched chicks of all three species were captured and quickly blood sampled from study rookeries near Anvers Island. Handling of crèched chicks occurred over a one or two day period, which varied seasonally and by species depending on nest initiation dates. Adélie penguin chicks at Avian Island were sampled on the same day Anvers Island Adélie penguin chicks were sampled. Adélie penguin chicks at Charcot Island, sampled during one season only on 25 January 2010, were handled three days after Anvers Island and Avian Island Adélie penguin chicks were sampled that year, i.e., 22 January 2010. Blood samples from crèched chicks (~1 ml) were taken from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle following sampling procedures used for adult penguins to obtain blood tissue for SI analyses. Stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (Date Day 5 Chicks Observed, seconds since 1970-01-01T00:00:00Z)\n... (11 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/info/IsotopicNicheChickPygoscelisPenguinsDay5/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/IsotopicNicheChickPygoscelisPenguinsDay5.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=IsotopicNicheChickPygoscelisPenguinsDay5&showErrors=false&email= National Science Foundation IsotopicNicheChickPygoscelisPenguinsDay5
https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguins5weeks.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguins5weeks https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheChickPygoscelisPenguins5weeks.graph https://pallter-data.marine.rutgers.edu/erddap/files/IsotopicNicheChickPygoscelisPenguins5weeks/ Isotopic signatures of diet provisioned to 5 week old chick Pygoscelis penguins reared along the western Antarctic Peninsula, 2007-2009 We evaluated regional variation in reproductive isotopic niche among breeding populations of Adélie (Pygoscelis adeliae), chinstrap (P. antarctica), and gentoo (P. papua) penguins west of the Antarctic Peninsula (AP) to test a hypothesis for sea ice-associated food-web correlates of breeding population change. We rely on signatures of naturally occurring carbon (13C/12C, δ13C) and nitrogen (15N/14N, δ15N) stable isotopes (SI) as integrated proxies of penguin trophic foraging and food-web structure. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. At approximate an average nest age of five and 15 days, offspring from study nests were captured and quickly blood sampled (<= ~500 µl for day five chicks, and <= ~1 ml for day 15 chicks) from the tarsus vein using a sterile needle and heparinized capillary tubes for day five chicks, and a sterile 3 ml syringe and heparinized infusion needle for day 15 chicks, again to obtain blood tissue for SI analyses. Study nests were monitored for chick survival to 25 days. At five weeks into chick-rearing, older crèched chicks of all three species were captured and quickly blood sampled from study rookeries near Anvers Island. Handling of crèched chicks occurred over a one or two day period, which varied seasonally and by species depending on nest initiation dates. Adélie penguin chicks at Avian Island were sampled on the same day Anvers Island Adélie penguin chicks were sampled. Adélie penguin chicks at Charcot Island, sampled during one season only on 25 January 2010, were handled three days after Anvers Island and Avian Island Adélie penguin chicks were sampled that year, i.e., 22 January 2010. Blood samples from crèched chicks (~1 ml) were taken from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle following sampling procedures used for adult penguins to obtain blood tissue for SI analyses. Stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (Date Week 5 Chicks Observed, seconds since 1970-01-01T00:00:00Z)\n... (11 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/info/IsotopicNicheChickPygoscelisPenguins5weeks/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/IsotopicNicheChickPygoscelisPenguins5weeks.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=IsotopicNicheChickPygoscelisPenguins5weeks&showErrors=false&email= National Science Foundation IsotopicNicheChickPygoscelisPenguins5weeks
https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheAdultPygoscelisPenguins.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheAdultPygoscelisPenguins https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheAdultPygoscelisPenguins.graph https://pallter-data.marine.rutgers.edu/erddap/files/IsotopicNicheAdultPygoscelisPenguins/ Isotopic signatures of foraging among adult Pygoscelis penguins nesting along the Palmer Archipelago near Palmer Station, 2007-2009 We evaluated regional variation in reproductive isotopic niche among breeding populations of Adélie (Pygoscelis adeliae), chinstrap (P. antarctica), and gentoo (P. papua) penguins west of the Antarctic Peninsula (AP) to test a hypothesis for sea ice-associated food-web correlates of breeding population change. We rely on signatures of naturally occurring carbon (13C/12C, δ13C) and nitrogen (15N/14N, δ15N) stable isotopes (SI) as integrated proxies of penguin trophic foraging and food-web structure. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. At approximate an average nest age of five and 15 days, offspring from study nests were captured and quickly blood sampled (<= ~500 µl for day five chicks, and <= ~1 ml for day 15 chicks) from the tarsus vein using a sterile needle and heparinized capillary tubes for day five chicks, and a sterile 3 ml syringe and heparinized infusion needle for day 15 chicks, again to obtain blood tissue for SI analyses. Study nests were monitored for chick survival to 25 days. At five weeks into chick-rearing, older crèched chicks of all three species were captured and quickly blood sampled from study rookeries near Anvers Island. Handling of crèched chicks occurred over a one or two day period, which varied seasonally and by species depending on nest initiation dates. Adélie penguin chicks at Avian Island were sampled on the same day Anvers Island Adélie penguin chicks were sampled. Adélie penguin chicks at Charcot Island, sampled during one season only on 25 January 2010, were handled three days after Anvers Island and Avian Island Adélie penguin chicks were sampled that year, i.e., 22 January 2010. Blood samples from crèched chicks (~1 ml) were taken from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle following sampling procedures used for adult penguins to obtain blood tissue for SI analyses. Stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (seconds since 1970-01-01T00:00:00Z)\n... (12 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/info/IsotopicNicheAdultPygoscelisPenguins/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/IsotopicNicheAdultPygoscelisPenguins.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=IsotopicNicheAdultPygoscelisPenguins&showErrors=false&email= National Science Foundation IsotopicNicheAdultPygoscelisPenguins
https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheWAPFoodWebComponents.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheWAPFoodWebComponents https://pallter-data.marine.rutgers.edu/erddap/tabledap/IsotopicNicheWAPFoodWebComponents.graph https://pallter-data.marine.rutgers.edu/erddap/files/IsotopicNicheWAPFoodWebComponents/ Isotopic signatures of penguin food-web components along the western Antarctic Peninsula, 2009-2011 We evaluated regional variation in reproductive isotopic niche among breeding populations of Adélie (Pygoscelis adeliae), chinstrap (P. antarctica), and gentoo (P. papua) penguins west of the Antarctic Peninsula (AP) to test a hypothesis for sea ice-associated food-web correlates of breeding population change. We rely on signatures of naturally occurring carbon (13C/12C, δ13C) and nitrogen (15N/14N, δ15N) stable isotopes (SI) as integrated proxies of penguin trophic foraging and food-web structure. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. At approximate an average nest age of five and 15 days, offspring from study nests were captured and quickly blood sampled (<= ~500 µl for day five chicks, and <= ~1 ml for day 15 chicks) from the tarsus vein using a sterile needle and heparinized capillary tubes for day five chicks, and a sterile 3 ml syringe and heparinized infusion needle for day 15 chicks, again to obtain blood tissue for SI analyses. Study nests were monitored for chick survival to 25 days. At five weeks into chick-rearing, older crèched chicks of all three species were captured and quickly blood sampled from study rookeries near Anvers Island. Handling of crèched chicks occurred over a one or two day period, which varied seasonally and by species depending on nest initiation dates. Adélie penguin chicks at Avian Island were sampled on the same day Anvers Island Adélie penguin chicks were sampled. Adélie penguin chicks at Charcot Island, sampled during one season only on 25 January 2010, were handled three days after Anvers Island and Avian Island Adélie penguin chicks were sampled that year, i.e., 22 January 2010. Blood samples from crèched chicks (~1 ml) were taken from the brachial vein using a sterile 3 ml syringe and heparinized infusion needle following sampling procedures used for adult penguins to obtain blood tissue for SI analyses. Stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (seconds since 1970-01-01T00:00:00Z)\n... (16 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/info/IsotopicNicheWAPFoodWebComponents/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/IsotopicNicheWAPFoodWebComponents.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=IsotopicNicheWAPFoodWebComponents&showErrors=false&email= National Science Foundation IsotopicNicheWAPFoodWebComponents
https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesCruise.graph https://pallter-data.marine.rutgers.edu/erddap/files/dO18StableIsotopesCruise/ Sources of oceanic freshwater content along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684.\n\ncdm_data_type = Trajectory\nVARIABLES:\nstudy_name (Study)\ngrid_station\ntime (seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\nevent\ncast_number\nbottle\ndepth (m)\npressure (sea_water_pressure, dbar)\no18_sample_number\n... (14 more variables)\n https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/dO18StableIsotopesCruise_fgdc.xml https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/dO18StableIsotopesCruise_iso19115.xml https://pallter-data.marine.rutgers.edu/erddap/info/dO18StableIsotopesCruise/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/dO18StableIsotopesCruise.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=dO18StableIsotopesCruise&showErrors=false&email= National Science Foundation dO18StableIsotopesCruise
https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesPalmerBasin.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesPalmerBasin https://pallter-data.marine.rutgers.edu/erddap/tabledap/dO18StableIsotopesPalmerBasin.graph https://pallter-data.marine.rutgers.edu/erddap/files/dO18StableIsotopesPalmerBasin/ Sources of oceanic freshwater content in the Palmer Basin along the western Antarctic Peninsula (PAL-LTER Study Region) determined by the stable isotope composition (d18O) of seawater. Dataset contains measurements of the ratio of stable isotopes of oxygen in seawater taken in the Palmer Basin at stations B, E and the Palmer station seawater intake. The oceanic distribution of d18O is determined largely by the same processes that control salinity. Surface d18O reflects the magnitude and spatial distribution of freshwater inputs, and it is a conservative tracer in the ocean interior. The great benefit of d18O is obtained from the circumstances under which it exhibits behavior different to that of salinity. One such circumstance derives from the salinity and d18O values in precipitation, with salinity being constant with latitude (typically zero), while in general d18O in precipitation becomes progressively isotopically lighter toward the poles. This results in glacial ice (which derives from high-latitude precipitation) being very isotopically light, enabling d18O to be a useful tracer of glacial discharge to the ocean (e.g., Schlosser et al. 1990; Weiss et al. 1979). Another difference occurs in regions influenced by sea ice, which greatly affects salinity during its formation/melt cycle but has only minimal impact on d18O. This decoupling of the two tracers allows them to be used in tandem to quantitatively separate freshwater inputs from sea ice melt and those from meteoric sources (precipitation plus glacial discharge). For this, a simple three-endmember mass balance can be used. For details please see Meredith, M. P., H. J. Venables, A. Clarke, H. W. Ducklow, M. Erickson, M. J. Leng, J. T. M. Lenaerts, and M. R. van den Broeke. 2013. The freshwater system west of the Antarctic Peninsula: Spatial and temporal changes. Journal of Climate 26:1669-1684.\n\ncdm_data_type = TimeSeries\nVARIABLES:\nstation (Sampling Station)\ntime (Sample Date, seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (m)\ntemperature (degree_C)\nsalinity (Practical Salinity, 1)\nmld (Mixed Layer Depth, m)\no18 (Oxygen Isotopes Ratio, ppt)\no18_duplicate (Oxygen Isotopes Ratio, ppt)\nevent (Event Number)\n https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/dO18StableIsotopesPalmerBasin_fgdc.xml https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/dO18StableIsotopesPalmerBasin_iso19115.xml https://pallter-data.marine.rutgers.edu/erddap/info/dO18StableIsotopesPalmerBasin/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/dO18StableIsotopesPalmerBasin.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=dO18StableIsotopesPalmerBasin&showErrors=false&email= National Science Foundation dO18StableIsotopesPalmerBasin
https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins.graph https://pallter-data.marine.rutgers.edu/erddap/files/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins/ Structural size measurements and isotopic signatures of foraging among adult male and female Adélie penguins (Pygoscelis adeliae) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 Sexual segregation in vertebrate foraging niche is often associated with sexual size dimorphism (SSD), i.e., ecological sexual dimorphism. We examined ecological sexual dimorphism among sympatric nesting Pygoscelis penguins near Palmer Station, Antarctica, asking whether environmental variability in the form of winter sea ice is associated with differences in male and female pre-breeding foraging niche. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. Molecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\nstudy_name (Study)\nsample_number\nspecies\nregion\nisland_name\nreproductive_stage\nindividual_id\nfull_clutch\ntime (seconds since 1970-01-01T00:00:00Z)\nculmen_length (mm)\nculmen_depth (mm)\nflipper_length (mm)\nbody_mass (grams)\nsex\nratio_of_15n_to_14n (percent)\nratio_of_13c_to_12c (percent)\ncomments\n https://pallter-data.marine.rutgers.edu/erddap/info/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins&showErrors=false&email= National Science Foundation StructuralSizeMeasurementsAndIsotopicSignaturesAdeliePenguins
https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins.graph https://pallter-data.marine.rutgers.edu/erddap/files/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins/ Structural size measurements and isotopic signatures of foraging among adult male and female Chinstrap penguins (Pygoscelis antarcticus) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 Sexual segregation in vertebrate foraging niche is often associated with sexual size dimorphism (SSD), i.e., ecological sexual dimorphism. We examined ecological sexual dimorphism among sympatric nesting Pygoscelis penguins near Palmer Station, Antarctica, asking whether environmental variability in the form of winter sea ice is associated with differences in male and female pre-breeding foraging niche. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. Molecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\ntime (Date Egg, seconds since 1970-01-01T00:00:00Z)\nsample_number\nspecies\nregion\nisland_name (Island)\nreproductive_stage (Stage)\nindividual_id\nfull_clutch (Clutch Completion)\ndorsal_ridge_length (Culmen Length)\ndorsal_ridge_depth (Culmen Depth, mm)\nflipper_length\nbody_mass (grams)\nsex\nratio_15n_14n (Delta 15 N, 1)\nratio_13c_12c (Delta 13 C, 1)\nnotes (Comments)\n https://pallter-data.marine.rutgers.edu/erddap/info/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins&showErrors=false&email= National Science Foundation StructuralSizeMeasurementsAndIsotopicSignaturesChinstrapPenguins
https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins https://pallter-data.marine.rutgers.edu/erddap/tabledap/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins.graph https://pallter-data.marine.rutgers.edu/erddap/files/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins/ Structural size measurements and isotopic signatures of foraging among adult male and female gentoo penguins (Pygoscelis papua) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 Sexual segregation in vertebrate foraging niche is often associated with sexual size dimorphism (SSD), i.e., ecological sexual dimorphism. We examined ecological sexual dimorphism among sympatric nesting Pygoscelis penguins near Palmer Station, Antarctica, asking whether environmental variability in the form of winter sea ice is associated with differences in male and female pre-breeding foraging niche. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. Molecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer\n\ncdm_data_type = Other\nVARIABLES:\nstudy_name (Study)\nsample_number\nspecies\nregion\nisland_name\nreproductive_stage\nindividual_id\nfull_clutch\ntime (seconds since 1970-01-01T00:00:00Z)\nculmen_length (mm)\nculmen_depth (mm)\nflipper_length (mm)\nbody_mass (grams)\nsex\nratio_of_15n_to_14n (percent)\nratio_of_13c_to_12c (percent)\ncomments\n https://pallter-data.marine.rutgers.edu/erddap/info/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins&showErrors=false&email= National Science Foundation StructuralSizeMeasurementsAndIsotopicSignaturesGentooPenguins
https://pallter-data.marine.rutgers.edu/erddap/tabledap/StationWaterColumnThorium.subset https://pallter-data.marine.rutgers.edu/erddap/tabledap/StationWaterColumnThorium https://pallter-data.marine.rutgers.edu/erddap/tabledap/StationWaterColumnThorium.graph https://pallter-data.marine.rutgers.edu/erddap/files/StationWaterColumnThorium/ Watercolumn total Th-234, Palmer Station, 2012-2013 Total watercolumn Th-234 was determined at Stations E and B near Palmer Station from Nov 2012 - Mar 2013.  Th-234 can be used as a tracer for particle cycling in the upper water column.  To compute carbon export from this Th-234 data please see the C:Th-234 ratios that can be derived from contemporaneous sediment trap deployments.  For more details, please see Stukel et al. (in review, Global Biogeochemical Cycles).\n\ncdm_data_type = Other\nVARIABLES:\nstudy_name (Study)\ntime (seconds since 1970-01-01T00:00:00Z)\nstation\ndepth (m)\nsalinity (Sea Water Practical Salinity, 1)\ndensity (Sea Water Density)\nth234_activity\nth234_activity_error\ndeficiency\ndeficiency_error\n https://pallter-data.marine.rutgers.edu/erddap/info/StationWaterColumnThorium/index.htmlTable https://pal.lternet.edu/ (external link) http://pallter-data.marine.rutgers.edu/erddap/rss/StationWaterColumnThorium.rss https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=StationWaterColumnThorium&showErrors=false&email= National Science Foundation StationWaterColumnThorium

 
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