A5041918558- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Marine and fisheries research
- Marine animal studies overview
- Fish Ecology and Management Studies
- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Fire effects on ecosystems
- Animal Behavior and Reproduction
- Genetic diversity and population structure
- Plant and animal studies
- Ecosystem dynamics and resilience
- Microbial bioremediation and biosurfactants
- Aquaculture Nutrition and Growth
- Coastal and Marine Management
- Underwater Acoustics Research
- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Marine Biology and Ecology Research
- Legume Nitrogen Fixing Symbiosis
- French Urban and Social Studies
- Coral and Marine Ecosystems Studies
Biomathematics and Statistics Scotland
2024
University of Aberdeen
2014-2023
Ecological Society of America
2016
John Wiley & Sons (United States)
2016
Centre d'Etudes Biologiques de Chizé
2002-2013
Polish Academy of Learning
2013
Centre National de la Recherche Scientifique
2009-2012
Mammal Research Institute
2011
Suggestions of collapse in small herbivore cycles since the 1980s have raised concerns about loss essential ecosystem functions. Whether such phenomena are general and result from extrinsic environmental changes or intrinsic process stochasticity is currently unknown. Using a large compilation time series vole abundances, we demonstrate consistent cycle amplitude dampening associated with reduction winter population growth, although regulatory processes responsible for cyclicity not been...
Abstract The recent increase in data accuracy from high resolution accelerometers offers substantial potential for improved understanding and prediction of animal movements. However, current approaches used analysing these multivariable datasets typically require existing knowledge the behaviors animals to inform behavioral classification process. These methods are thus not well‐suited many cases where limited different performed exist. Here, we introduce use an unsupervised learning...
The influence of plants on archaeal (AOA) and bacterial (AOB) ammonia oxidisers (AO) is poorly understood. Higher microbial activity in the rhizosphere, including organic nitrogen (N) mineralisation, may stimulate both groups, while uptake by favour AOA, considered to prefer lower concentration. We therefore hypothesised (i) higher AOA AOB abundances rhizosphere than bulk soil (ii) that are favoured over with an exploitative strategy high N demand, especially (iii) during early growth, when...
Greenhouse gas (GHG) modelling tools or the Intergovernmental Panel on Climate Change (IPCC) inventory methods are often used to identify suitable mitigation strategies for GHG emissions from rice, since measuring them in field is challenging and costly. Here we report an up-to-date quantitative review methane (CH4) emission rice paddies using information obtained peer-review articles. Statistical analysis was conducted factors controlling CH4 a generalised additive model (GAM) developed...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 353:275-288 (2008) - DOI: https://doi.org/10.3354/meps07164 Summer spatial distribution of cetaceans in Strait Gibraltar relation oceanographic context Renaud de Stephanis1,2,*, Thomas Cornulier3,4, Philippe Verborgh1,2, Juanma Salazar Sierra1,2, Neus Pérez Gimeno2,5, Christophe Guinet3 1CIRCE, Conservation...
The Little Bustard has undergone a steep reduction of its Western Palaearctic range over the last century. In west France, breeding populations declined by 96% from 1978 to 2008 in cultivated areas where grasslands have been converted into intensively managed annual crops. abundance and nest productivity monitored since 1995 450‐km 2 site western France. We assessed proximate causes decline Bustards French farming landscapes quantified effectiveness conservation measures that aimed reverse...
Estimating population spread rates across multiple species is vital for projecting biodiversity responses to climate change. A major challenge parameterise models many species. We introduce an approach that addresses this challenge, coupling a trait-based analysis with spatial modelling project 15 000 virtual mammals life histories reflect those seen in the real world. Covariances among life-history traits are estimated from extensive terrestrial mammal data set using Bayesian inference....
Southeast Asian peatlands have undergone recent land use change with an increase in industrial agricultural plantations, including oil palm. Cultivating peat soil requires creating drainage ditches and other surface microforms (i.e. harvest paths, frond piles, cover plants next to the palm). However, it is currently unclear how these management actions affect rates of carbon losses from peat. Here we report fluxes each different measured monthly (soil CO2 [soil respiration, Rtot], stem CH4)...
Population densities of large herbivores are determined by the diverse effects density-dependent and independent environmental factors. In this study, we used official 1998-2003 inventory data on ungulate numbers from 462 forest districts 23 national parks across Poland to determine roles various factors in shaping country-wide spatial patterns abundances. Spatially explicit generalized additive mixed models showed that different sets variables explained 39 50 % variation red deer Cervus...
Predicting the dynamics of animal populations with different life histories requires careful understanding demographic responses to multifaceted aspects global changes, such as climate and trophic interactions. Continent-scale dampening vole population cycles, keystone herbivores in many ecosystems, has been recently documented across Europe. However, its impact on guilds vole-eating predators remains unknown. To quantify this impact, we used a 27-year study an avian predator (tawny owl)...
Abstract Patterns of spatio‐temporal genetic variation at a class II major histocompatibility complex (MHC) locus and multiple microsatellite loci were analysed within between three water vole metapopulations in Scotland, UK. Comparisons MHC spatial differentiation, based on standardised tests two demographically asynchronous zones metapopulation, suggested that was affected by balancing selection, directional selection random drift, but the relative effects these microevolutionary forces...
Abstract Detailed information acquired using tracking technology has the potential to provide accurate pictures of types movements and behaviors performed by animals. To date, such data have not been widely exploited inferred about foraging habitat. We collected multiple sensors ( GPS , time depth recorders, accelerometers) from two species diving seabirds, razorbills Alca torda N = 5, Fair Isle, UK ) common guillemots Uria aalge 2 Isle Colonsay, ). used a clustering algorithm identify...
Imaging sonars are increasingly being utilised in fish surveys conjunction with or as substitutes for optical instruments. To justify the use of imaging sonars, we must first describe their application, limitations, and efficacy compared to optics. This study quantitative data assemblages obtained using operating at four frequencies (0.75, 1.2, 2.1, 3 MHz) simultaneous camera footage two artificial reefs. Fish densities were on average three times higher sonar than Greater detection by was...
More than 50% of terrestrially-derived organic carbon (terrOC) flux from the continents to ocean is remineralised in coastal zone despite its perceived high refractivity. The efficient degradation terrOC marine environment could be fuelled by labile marine-derived material, a phenomenon known as “priming effect”, but experimental data confirm this mechanism are lacking. We tested hypothesis treating sediments with 13C-lignocellulose, proxy for terrOC, and without addition unlabelled diatom...
Accurate estimation of tree biomass is necessary to provide realistic values the carbon stored in terrestrial biosphere. A recognized source errors aboveground (AGB) introduced when individual height (H) are not directly measured but estimated from diameter at breast (DBH) using allometric equations. In this paper, we evaluate performance 12 alternative DBH : H equations and compare their effects on AGB for three tropical forests that occur contrasting climatic altitudinal zones. We found...
Testing for aggregation or regularity in point patterns is difficult the presence of spatial variation abundance due to environmental heterogeneity. Using a recently developed method generalizing Ripley's K function non homogeneous patterns, we test nests two species birds (little owl and Montagu's harrier) exhibiting heterogeneous distributions response landscape structure. We compare results obtained under different null models accounting heterogeneity at large and/or small scales. Whereas...
Well-established statistical methods exist to estimate variation in a number of key demographic rates from field data, including life-history transition probabilities and reproductive success per attempt. However, our understanding the processes underlying population change remains incomplete without knowing attempts individuals make annually; this is rate for which we have no satisfactory method estimating. Using census data parameter requires disaggregating overlying temporal distributions...
Deep sea oil exploration is increasing and presents environmental challenges for deep ocean ecosystems. Marine spills often result in contamination of sediments with oil; following the Deepwater Horizon (DwH) disaster up to 31% released entrained water column was deposited as oily residues on seabed. Although aftermath DwH studied intensely, lessons learned may not be directly transferable other deep-sea hydrocarbon areas, such Faroe-Shetland Channel (FSC) which comprises cold temperatures a...
Temperate heathlands and blanket bogs are globally rare face growing wildfire threats. Ecosystem impacts differ between low high severity fires, where reflects immediate fuel consumption. This study assessed factors influencing fire in Scottish bogs, including the efficacy of Canadian Fire Weather Index System (CFWIS). Using remote sensing, we measured differenced Normalised Burn Ratio at 92 sites from 2015 to 2021. We used Generalised Additive Mixed Models investigate impact topography,...
Abstract Aim To identify the migration routes and wintering grounds of core populations near‐threatened pallid harrier, Circus macrourus, highlight conservation needs associated with these phases annual cycle. Location Breeding area: north‐central Kazakhstan; Wintering areas: Sahel belt (Burkina Faso to Ethiopia) north‐west India. Methods We used ring recovery data from Kazakhstan satellite tracking 2007 2008 on six adults breeding in determine locate areas. In addition, one first‐year male...
Abstract Aim Estimating environmental suitability from species distribution data is crucial in defining spatial conservation measures. To this end, models ( SDM s) are commonly applied, but seldom validated by completely independent data. Here, we use on individual tracks derived electronic tags as an alternative means of validating outputs. Location West coast Scotland, NE Atlantic. Methods We used a binomial generalized additive model GAM ) to predict the for flapper skate Dipturus cf....
If water saving methods of rice management are to be adopted, the interaction between plants and arbuscular mycorrhizal (AM) fungi will grow in agronomic significance. As yet there very few studies on AM none host genetics. A subset 334 cultivars from Rice Diversity Panel 1 were grown 250 litre boxes filled with phosphorus (P) deficient aerobic soil without addition, added rock phosphate fungus Rhizophagus irregularis. Statistical analysis position revealed a positive effect their neighbours...
Summary 1. Understanding the mechanisms by which environmental change has impacted natural processes typically requires good time series for change. Unfortunately, other than climate, detailed of historical environments are scarce. In many instances, researchers can only collate disparate and sometimes fragmented information from literature or pre‐historical sources. 2. Here, we apply modern statistical methods to reconstruct a recent sparse data collected heterogeneous Specifically, deal...