Journal Title
Title of Journal: Landscape Ecol
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Abbravation: Landscape Ecology
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Publisher
Springer Netherlands
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Authors: Piotr Skórka Magdalena Lenda Rafał Martyka Stanisław Tworek
Publish Date: 2009/04/29
Volume: 24, Issue: 5, Pages: 599-609
Abstract
Metapopulation and optimal foraging theories predict the presence of animals and their duration respectively in foraging patches This paper examines use of these two theories to describe the movements and patterns of foraging in patches used by Caspian gulls Larus cachinnans at inland reservoirs during the chickrearing period We assumed that birds would move differently across diverse habitats with some types of land cover less permeable than others and some landscape features acting as corridors We also expected larger and less isolated patches and patches that were close to corridors to have a higher probability of the presence of foraging birds and that they would be more abundant forage for a shorter time and hunt smaller prey than in small more isolated patches surrounded by barriers Forests seem to be a much less permeable type of land cover whereas rivers became corridors for Caspian gulls during foraging trips Probability of bird presence was positively related to the size of foraging patches and negatively linked with distance to the nearest river distance to the nearest foraging patch and the presence of forests in the vicinity The same factors significantly affected bird abundance Contrary to expectations the duration and success of foraging were not influenced by any variable we measured suggesting that although larger patches contain a higher abundance of fish their density and the probability of capturing prey were relatively stable among the various patches However gulls that foraged in more isolated ponds that were located further from the river and the colony and also surrounded by forest captured larger fish more often than birds that foraged near the colony in lessisolated patches Pooling metapopulation and optimal foraging concepts seems to be valuable in describing patch use by foraging animalsWe are grateful to Siva Jayaprakash and three anonymous referees for their critical comments on previous versions of the manuscript We thank all field assistants for their help with this study Special thanks to J Skorka for his enormous help in 2002 This study was partially financed by project NN304 2370 33 from the Polish Ministry of Science and Higher Education PS was the beneficiary of a Grant for Young Scientists of the Foundation for Polish Science
Keywords:
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- Spatial pattern of greenspace affects land surface temperature: evidence from the heavily urbanized Beijing metropolitan area, China
- Farmland bird responses to intersecting replanted areas
- How the eastern US National Forests were formed
- Spatial resilience: integrating landscape ecology, resilience, and sustainability
- Characterising landscape connectivity for conservation planning using a dispersal guild approach
- Effects of field and landscape variables on crop colonization and biological control of the cabbage root fly Delia radicum
- The potential to restore native woody plant richness and composition in a reforesting landscape: a modeling approach in the Ecuadorian Andes
- Past, present and future of wild ungulates in relation to changes in land use
- Biogeochemical fluxes in landscapes
- Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague
- Landscape connectivity and animal behavior: functional grain as a key determinant for dispersal
- Thresholds of landscape change: a new tool to manage green infrastructure and social–economic development
- Testing coexistence of extinction debt and colonization credit in fragmented calcareous grasslands with complex historical dynamics
- Changes in landscape naturalness derived from a historical land register—a case study from NE Germany
- Linking Land-use, Water Body Type and Water Quality in Southern New Zealand
- Spatial fit between water quality policies and hydrologic ecosystem services in an urbanizing agricultural landscape
- Modeling exurban development near Washington, DC, USA: comparison of a pattern-based model and a spatially-explicit econometric model
- The impact of land use/land cover scale on modelling urban ecosystem services
- Using landscape analysis to assess and model tsunami damage in Aceh province, Sumatra
- Geographic position and landscape composition explain regional patterns of migrating landbird distributions during spring stopover along the northern coast of the Gulf of Mexico
- Effects of thematic resolution on landscape pattern analysis
- Diagnostic tools to evaluate a spatial land change projection along a gradient of an explanatory variable
- Ontologies for transparent integrated human-natural system modelling
- Scenarios of long-term farm structural change for application in climate change impact assessment
- Influence of patch, habitat, and landscape characteristics on patterns of Lower Keys marsh rabbit occurrence following Hurricane Wilma
- Multi-scale predictive habitat suitability modeling based on hierarchically delineated patches: an example for yellow-billed cuckoos nesting in riparian forests, California, USA
- Long-term vegetation dynamics driven by climatic variations in the Inner Mongolia grassland: findings from 30-year monitoring
- Relative importance of management vs. design for implementation of large-scale ecological networks
- A global perspective on reforesting landscapes
- Consequences of a large-scale fragmentation experiment for Neotropical bats: disentangling the relative importance of local and landscape-scale effects
- Functional connectivity of lynx at their southern range periphery in Ontario, Canada
- M. Doyle and C. A. Drew (eds): Large-Scale Ecosystem Restoration: Five Case Studies from the United States
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