The dataset contains CO2 efflux, hydraulic and water chemistry data from six field sites which vary in location, size and catchment characteristics. Measurements were made at: i) two sites in the UK - the River Kelvin (335 km2, semi-urban catchment) and Drumtee water (9.6 km2, peat dominated catchment); ii) four sites in the Peruvian Amazon - Main Trail (5 km2, seasonally active stream in a rainforest catchment), New Colpita stream (7 km2, perennial stream in...
Data from: Intercolony movement of pre-breeding seabirds over oceanic scales: implications of cryptic age-classes for conservation and metapopulation dynamicsAnthony W. J. Bicknell, Mairi E. Knight, David T. Bilton, Maria Campbell, James B. Reid, Jason Newton & Stephen C. Votier
Aim: Demographic linkage between subpopulations plays a critical role in population processes. Metapopulation dynamics, however, remains one of the most poorly understood aspects of population biology. This is especially true for small, pelagic seabirds because their discrete subpopulations are located on offshore islands, separated by vast areas of open ocean, making monitoring logistically challenging. Seabird populations often contain large numbers of immature pre-breeders that may be important for subpopulation connectivity and demography, but are poorly...
This dataset comprises the delta-13C and delta-15N stable isotopic information from two tissue samples (whole blood and mantle feathers) from 16 adults of 8 species of Southern Ocean procellariform collected at Bird Island, South Georgia during the austral summer 2001-2002. There have been numerous long-term research projects carried out at Bird Island under the auspices of the British Antarctic Survey, and this data represents one very small component that has been used to examine inter-specific...
Data from: Age-related variation in non-breeding foraging behaviour and carry-over effects on fitness in an extremely long-lived birdThomas A. Clay, Elizabeth J. Pearmain, Rona A.R. McGill, Andrea Manica, Richard A. Phillips & Rona A. R. McGill
1. Senescence has been widely documented in wild vertebrate populations, yet the proximate drivers of age-related declines in breeding success, including allocation trade-offs and links with foraging performance, are poorly understood. For long-lived, migratory species, the non-breeding period represents a critical time for investment in self-maintenance and restoration of body condition, which in many species is linked to fitness. However, the relationships between age, non-breeding foraging behaviour and fitness remain largely unexplored. 2. We performed...
Data from: Stable isotopes reveal differences in diet among reed bunting subspecies that vary in bill sizeJúlio Manuel Neto, Luís De Oliveira Gordinho, Benjamin Vollot, Marcial Marín, Juan S. Monrós & Jason Newton
Reed bunting (Emberiza schoeniclus) subspecies vary considerably in bill size and shape and seem to be at an early stage of speciation, in which bill might be indirectly causing reproductive isolation. Hence, we evaluated whether bill size, as well as age and sex, are associated with foraging niche in three West European subspecies of reed bunting: the thin-billed schoeniclus, the intermediate-billed lusitanica and the thick-billed witherbyi. Blood sampling was undertaken at three sites in southwest...
Topographic Relief Response to Fluvial Incision in the Central Tibetan Plateau: Evidence From Cosmogenic 10BeYe Yang, Li-Feng Cui, Sheng Xu, Cong-Qiang Liu, Derek Fabel, Li‐Feng Cui & Cong‐Qiang Liu
Fluvial incision, regarded as one of the fundamental geomorphic processes, drives the evolution of mountainous landscapes. The transitional landscape from low-relief to high-relief in the central Tibetan Plateau is rapidly evolving as it is influenced by river dynamics, climate change and tectonic uplift. Combining cosmogenic 10Be depth profile dating and topographic analysis, this study provides new constraints on the formation and destruction of low-relief surfaces in the central Tibetan Plateau. We find that the high-relief...
Data from: Mercury exposure in an endangered seabird: long-term changes and relationships with trophic ecology and breeding successWilliam Mills, Paco Bustamante, Rona McGill, Orea Anderson, Stuart Bearhop, Yves Cherel, Stephen Votier & Richard Phillips
Mercury (Hg) is an environmental contaminant which, at high concentrations, can negatively influence avian physiology and demography. Albatrosses (Diomedeidae) have higher Hg burdens than all other avian families. Here, we measure total Hg (THg) concentrations of body feathers from adult grey-headed albatrosses (Thalassarche chrysostoma) at South Georgia. Specifically, we: (i) analyse temporal trends at South Georgia (1989–2013) and make comparisons with other breeding populations; (ii) identify factors driving variation in THg concentrations; and, (iii) examine...
Scottish Universities Environmental Research Centre7
British Antarctic Survey3
University of Exeter3
Centre d'Etudes Biologiques de Chizé1
University of Glasgow1
University of Cambridge1
Sir Alister Hardy Foundation for Ocean Science1
National Marine Fisheries Service1