Results 41 to 50 of about 45,165 (288)

Developing fencing policies in dryland ecosystems [PDF]

, 2015
The daily energy requirements of animals are determined by a combination of physical and physiological factors, but food availability may challenge the capacity to meet nutritional needs.
Bashir, S., Becker, M. S., Beudels Jamar, R. C., Blake, S., Boitani, Luigi, Borner, M., Breitenmoser, C., Broekhuis, F., Christianson, D., Cozzi, G., Creel, S., Davenport, T. R. B., Deutsch, J., Dickman, A. J., Dollar, L., Dolrenry, S., Douglas Hamilton, I., Dröge, E., Fitzherbert, E., Foley, C., Hazzah, L., Hilborn, R., Hopcraft, J. G. C., Ikandad,, Jacobson, A., Joubert, B., Joubert, D., Kelly, M. J., Lichtenfeld, L., Mace, G. M., Matandiko, W., Milanzi, J., Mitchell, N., Msuha, M., Mweetwa, T., M’Soka, J., Nyahongo, J., Pettorelli, N., Pimm, S. L., Rosenblatt, E., S. M., Durant, Schenck, C., Schuette, P., Sillero Zubiri, C., Sinclair, A. R. E., Stanley Price, M., Tehou, J. A., Wall, J., Wittemyer, G., Zimmerman, A.   +49 more
core   +2 more sources

Flyway‐scale GPS tracking reveals migratory routes and key stopover and non‐breeding locations of lesser yellowlegs

Ecology and Evolution, 2022
Many populations of long‐distance migrant shorebirds are declining rapidly. Since the 1970s, the lesser yellowlegs (Tringa flavipes) has experienced a pronounced reduction in abundance of ~63%. The potential causes of the species' decline are complex and
Laura A. McDuffie, Katherine S. Christie, Audrey R. Taylor, Erica Nol, Christian Friis, Christopher M. Harwood, Jennie Rausch, Benoit Laliberte, Callie Gesmundo, James R. Wright, James A. Johnson   +10 more
doaj   +1 more source

Provenance does matter: links between winter trophic segregation and the migratory origins of European robins [PDF]

, 2016
Amongst migratory species, it is common to find individuals from different populations or geographical origins sharing staging or wintering areas.
Bearhop, Stuart,, Campos, Ana R.,, Catry, Paulo,, Granadeiro, José Pedro,, Lund University., Neto, Júlio M.,, Newton, Jason,, Ramos, Jaime,   +7 more
core   +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

Habitat distribution affects connectivity and population size in migratory networks [PDF]

Theoretical Ecology, 2022
Abstract Population dynamics of migratory species can be modeled using spatial bipartite networks in which breeding and winter regions, or nodes, are distributed longitudinally and connected by links representing migratory movements. Understanding the factors that influence the connectivity and population size of such networks is important for ...
Swati Patel, Caz Taylor
openaire   +1 more source

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

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

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

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