Results 61 to 70 of about 649,345 (312)

Assessing the freshwater distribution of yellow eel [PDF]

, 2008
In the global context of the decline in wild species, modeling the distribution of populations is a crucial aspect of ecological management. This can be a major challenge, especially for species, such as the European eel, that have complex life cycles ...
Laffaille, Pascal, Lasne, Emilien
core   +6 more sources

Hydrological controls on river network connectivity [PDF]

, 2019
This study proposes a probabilistic approach for the quantitative assessment of reach- and network-scale hydrological connectivity as dictated by river flow space–time variability. Spatial dynamics of daily streamflows are estimated based on climatic and
Botter, Gianluca, Celegon, Elisa Alessi, Fanton, Pietro, Garbin, Silvia   +3 more
core   +1 more source

Gulf Estuarine Research Society 2014 Meeting [PDF]

, 2014
Table of Contents: Thank You to Our Sponsors! (p. 3) -- About the Gulf Estuarine Research Society (p. 4) -- Student Travel Award winners (p. 5) -- Abbreviated Schedule (p. 7) -- 2014 Plenary Speaker – Dr. Michael Osland (p.
University of Texas Marine Science Institute
core   +1 more source

The futures of rural migration in sub-Saharan Africa: A literature review and exploratory essay [PDF]

, 2019
In a context where 200 million more people are expected to live in sub-Saharan Africa (SSA) alone by 2050, the question of the futures of SSA rural migration is of crucial importance in a region which so far as remained essentially rural, in spite of a ...
Bourgeois, Robin
core   +1 more source

Effects of Natal Dispersal and Density-Dependence on Connectivity Patterns and Population Dynamics in a Migratory Network

Frontiers in Ecology and Evolution, 2019
Migratory species can be visualized as occupying spatial networks with nodes representing regions and the populations that seasonally occupy them and links between seasonal subpopulations representing migratory connectivity.
Caz M. Taylor
doaj   +1 more source

Stable isotope ratios indicate that body condition in migrating passerines is influenced by winter habitat [PDF]

, 2004
Although predicted some time ago, there has been little success in demonstrating that the overall fitness of migratory birds depends on the combined influences of their experiences over all seasons.
Bearhop, S., Hilton, G.M., Votier, S.C., Waldron, S.   +3 more
core   +1 more source

Birds of three worlds: moult migration to high Arctic expands a boreal-temperate flyway to a third biome

Movement Ecology, 2021
Background Knowledge on migration patterns and flyways is a key for understanding the dynamics of migratory populations and evolution of migratory behaviour. Bird migration is usually considered to be movements between breeding and wintering areas, while
Antti Piironen, Antti Paasivaara, Toni Laaksonen   +2 more
doaj   +1 more source

Land-Use Change, Habitat Connectivity, and Conservation Gaps: A Case Study of Shorebird Species in the Yellow River Delta of China Using the InVEST Model and Network Analysis

Remote Sensing, 2022
Coastal wetlands form a transition zone between terrestrial and marine environments and provide important ecosystem services. Land-use change in the coastal zone has a substantial effect on habitat connectivity and biodiversity. However, few studies have
Houlang Duan, Xiubo Yu
doaj   +1 more source

Spatial and temporal variation in population trends in a long-distance migratory bird [PDF]

, 2010
Over the past three decades, evidence has been growing that many Afro-Palaearctic migratory bird populations have suffered sustained and severe declines.
Both, Both, Burfield, Coombes, Corbet, Cramp, Crick, Gill, Gill, Gillings, Gillings, Gunnarsson, Hein, Hein, Hewson, Huppop, Keller, Marra, Mullie, Mustin, Møller, Møller, Newson, Newton, Norman, Peach, Peach, Risely, Robinson, Salewski, Salewski, Sanderson, Szep, Visser, Ward   +34 more
core   +1 more source

Broad-scale seasonal climate tracking is a consequence, not a driver, of avian migratory connectivity.

Ecology Letters
Tracking climatic conditions throughout the year is often assumed to be an adaptive behaviour underlying seasonal migration patterns in animal populations.
Marius Somveille, C. Bossu, M. DeSaix, Allison H Alvarado, Sergio Gómez Villaverde, Genaro Rodríguez Otero, Blanca E. Hernández-Baños, Thomas B. Smith, K. Ruegg   +8 more
semanticscholar   +1 more source