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Movement Ecology

Christine M Anderson, H Grant Gilchrist, Robert A Ronconi, Katherine R Shlepr, Daniel E Clark, D V Chip Weseloh, Gregory J Robertson, Mark L Mallory
[This corrects the article DOI: 10.1186/s40462-019-0152-x.].
2019: Movement Ecology
Ryszard Z Oleksy, Charles L Ayady, Vikash Tatayah, Carl Jones, Paul W Howey, Jérémy S P Froidevaux, Paul A Racey, Gareth Jones
Background: Flying foxes (Chiroptera: Pteropodidae) are large bats that often roost in the sun, hence solar-powered GPS/GSM devices can track their movements over extended periods. The endemic Mauritian flying fox ( Pteropus niger ) has recently been subjected to large-scale culling because of perceived damage to commercial fruit, and a consequent reduction in numbers of > 50% since 2015 resulted in its IUCN Red List Status being up-listed to Endangered. Determining its movements will be important for management and conservation, for understanding potential responses to environmental change, and for understanding population admixture...
2019: Movement Ecology
Lorenzo Quaglietta, Miguel Porto
Background: Lack of suitable analytical software and computational power constrains the comprehension of animal movement. In particular, we are aware of no tools allowing simulating spatially-explicit multistate Markovian movements constrained to linear features or conditioned by landscape heterogeneity, which hinders movement ecology research in linear/dendritic (e.g. river networks) and heterogeneous landscapes.SiMRiv is a novel, fast and intuitive R package we designed to fill such gap...
2019: Movement Ecology
Diego Fontaneto
Given their dormancy capability (long-term resistant stages) and their ability to colonise and reproduce, microscopic aquatic animals have been suggested having cosmopolitan distribution. Their dormant stages may be continuously moved by mobile elements through the entire planet to any suitable habitat, preventing the formation of biogeographical patterns. In this review, I will go through the evidence we have on the most common microscopic aquatic animals, namely nematodes, rotifers, and tardigrades, for each of the assumptions allowing long-distance dispersal (dormancy, viability, and reproduction) and all the evidence we have for transportation, directly from surveys of dispersing stages, and indirectly from the outcome of successful dispersal in biogeographical and phylogeographical studies...
2019: Movement Ecology
Avraham Be'er, Gil Ariel
Bacterial swarming is a collective mode of motion in which cells migrate rapidly over surfaces, forming dynamic patterns of whirls and jets. This review presents a physical point of view of swarming bacteria, with an emphasis on the statistical properties of the swarm dynamics as observed in experiments. The basic physical principles underlying the swarm and their relation to contemporary theories of collective motion and active matter are reviewed and discussed in the context of the biological properties of swarming cells...
2019: Movement Ecology
Christine M Anderson, H Grant Gilchrist, Robert A Ronconi, Katherine R Shlepr, Daniel E Clark, D V Chip Weseloh, Gregory J Roberston, Mark L Mallory
Background: Recognizing the factors influencing migratory individuals throughout their annual cycle is important for understanding the drivers of population dynamics. Previous studies have found that Herring Gulls ( Larus argentatus ) in the Atlantic region have lower survival rates than those in the Great Lakes and the Arctic. One possible explanation for divergent survival rates among these populations is differences in their non-breeding habitats. Methods: We tracked Herring Gulls from five populations, breeding in the eastern Arctic, the Great Lakes, Newfoundland, Sable Island, and the Bay of Fundy...
2019: Movement Ecology
Maxime Lalire, Philippe Gaspar
Background: The Northwest Atlantic (NWA) leatherback turtle ( Dermochelys coriacea ) subpopulation is one of the last healthy ones on Earth. Its conservation is thus of major importance for the conservation of the species itself. While adults are relatively well monitored, pelagic juveniles remain largely unobserved. In an attempt to reduce this knowledge gap, this paper presents the first detailed simulation of the open ocean dispersal of juveniles born on the main nesting beaches of French Guiana and Suriname (FGS)...
2019: Movement Ecology
Fiona McDuie, Michael L Casazza, Cory T Overton, Mark P Herzog, C Alexander Hartman, Sarah H Peterson, Cliff L Feldheim, Joshua T Ackerman
Background: Spatio-temporal patterns of movement can characterize relationships between organisms and their surroundings, and address gaps in our understanding of species ecology, activity budgets, bioenergetics, and habitat resource management. Highly mobile waterfowl, which can exploit resources over large spatial extents, are excellent models to understand relationships between movements and resource usage, landscape interactions and specific habitat needs. Methods: We tracked 3 species of dabbling ducks with GPS-GSM transmitters in 2015-17 to examine fine-scale movement patterns over 24 h periods (30 min interval), dividing movement pathways into temporally continuous segments and spatially contiguous patches...
2019: Movement Ecology
Thomas Oudman, Theunis Piersma, Mohamed V Ahmedou Salem, Marieke E Feis, Anne Dekinga, Sander Holthuijsen, Job Ten Horn, Jan A van Gils, Allert I Bijleveld
[This corrects the article DOI: 10.1186/s40462-018-0142-4.].
2019: Movement Ecology
Cristian Pasquaretta, Raphael Jeanson, Jerome Pansanel, Nigel E Raine, Lars Chittka, Mathieu Lihoreau
Background: Individual bees exhibit complex movement patterns to efficiently exploit small areas within larger plant populations. How such individual spatial behaviours scale up to the collective level, when several foragers visit a common area, has remained challenging to investigate, both because of the low resolution of field movement data and the limited power of the statistical descriptors to analyse them. To tackle these issues we video recorded all flower visits ( N  = 6205), and every interaction on flowers ( N  = 628), involving foragers from a bumblebee ( Bombus terrestris ) colony in a large outdoor flight cage (880 m2 ), containing ten artificial flowers, collected on five consecutive days, and analysed bee movements using networks statistics...
2019: Movement Ecology
A Kölzsch, G J D M Müskens, P Szinai, S Moonen, P Glazov, H Kruckenberg, M Wikelski, B A Nolet
Background: For the conservation and management of migratory species that strongly decrease or increase due to anthropological impacts, a clear delineation of populations and quantification of possible mixing (migratory connectivity) is crucial. Usually, population exchange in migratory species is only studied in breeding or wintering sites, but we considered the whole annual cycle in order to determine important stages and sites for population mixing in an Arctic migrant. Methods: We used 91 high resolution GPS tracks of Western Palearctic greater white-fronted geese ( Anser A...
2019: Movement Ecology
Lucy C M Omeyer, Wayne J Fuller, Brendan J Godley, Robin T E Snape, Annette C Broderick
Background: Telemetry and biologging systems, 'tracking' hereafter, have been instrumental in meeting the challenges associated with studying the ecology and behaviour of cryptic, wide-ranging marine mega-vertebrates. Over recent decades, globally, sea turtle tracking has increased exponentially, across species and life-stages, despite a paucity of studies investigating the effects of such devices on study animals. Indeed, such studies are key to informing whether data collected are unbiased and, whether derived estimates can be considered typical of the population at large...
2019: Movement Ecology
Petra Quillfeldt, Henri Weimerskirch, Juan F Masello, Karine Delord, Rona A R McGill, Robert W Furness, Yves Cherel
Background: In long-lived seabirds that migrate large distances independently of each other, the early part of the breeding season is crucially important for a successful reproductive attempt. During this phase, pair bonds are re-established and partners coordinate their breeding duties. We studied the early breeding season in Thin-billed prions Pachyptila belcheri breeding in the Atlantic Ocean (Falkland/Malvinas Islands) and Indian Ocean (Kerguelen). Despite overlap in the wintering areas, these two populations exhibit differences in their timing and direction of migration...
2019: Movement Ecology
Rocio Joo, Marie-Pierre Etienne, Nicolas Bez, Stéphanie Mahévas
In movement ecology, the few works that have taken collective behaviour into account are data-driven and rely on simplistic theoretical assumptions, relying in metrics that may or may not be measuring what is intended. In the present paper, we focus on pairwise joint-movement behaviour, where individuals move together during at least a segment of their path. We investigate the adequacy of twelve metrics introduced in previous works for assessing joint movement by analysing their theoretical properties and confronting them with contrasting case scenarios...
2018: Movement Ecology
Oskar Brattström, Anatoly Shapoval, Leonard I Wassenaar, Keith A Hobson, Susanne Åkesson
Background: Long-distance migration has evolved multiple times in different animal taxa. For insect migrants, the complete annual migration cycle covering several thousand kilometres, may be performed by several generations, each migrating part of the distance and reproducing. Different life-cycle stages and preferred orientation may thus, be found along the migration route. For migrating red admirals ( Vanessa atalanta ) it has been questioned if they reproduce in the most northern part of the range...
2018: Movement Ecology
Thomas Oudman, Theunis Piersma, Mohamed V Ahmedou Salem, Marieke E Feis, Anne Dekinga, Sander Holthuijsen, Job Ten Horn, Jan A van Gils, Allert I Bijleveld
Background: Space use strategies by foraging animals are often considered to be species-specific. However, similarity between conspecific strategies may also result from similar resource environments. Here, we revisit classic predictions of the relationships between the resource distribution and foragers' space use by tracking free-living foragers of a single species in two contrasting resource landscapes. At two main non-breeding areas along the East-Atlantic flyway (Wadden Sea, The Netherlands and Banc d'Arguin, Mauritania), we mapped prey distributions and derived resource landscapes in terms of the predicted intake rate of red knots ( Calidris canutus ), migratory molluscivore shorebirds...
2018: Movement Ecology
Benjamin J O'Neal, Joshua D Stafford, Ronald P Larkin, Eric S Michel
Background: Previous investigations of autumn-migrating ducks have reported weak connections between weather conditions and the decision to migrate from stopover sites. We leveraged relatively new weather surveillance radar technology to remotely detect departures of discrete groups of various species of migratory dabbling ducks ( Anatidae ) in autumn to more directly assess the effect of specific weather conditions on departure from discrete stopover sites. Methods: Using radar data collected over fifteen years (1995-2009), we documented a consistent phenomenon where a single, identifiable group departed from our study area on 30% of days during the autumn study period, and no ducks departed on the other days...
2018: Movement Ecology
Frances E Buderman, Mevin B Hooten, Mathew W Alldredge, Ephraim M Hanks, Jacob S Ivan
Background: While many species have suffered from the detrimental impacts of increasing human population growth, some species, such as cougars ( Puma concolor ), have been observed using human-modified landscapes. However, human-modified habitat can be a source of both increased risk and increased food availability, particularly for large carnivores. Assessing preferential use of the landscape is important for managing wildlife and can be particularly useful in transitional habitats, such as at the wildland-urban interface...
2018: Movement Ecology
Jade Vacquié-Garcia, Christian Lydersen, Rolf A Ims, Kit M Kovacs
Background: The Arctic is experiencing rapid reductions in sea ice and in some areas tidal glaciers are melting and retracting onto land. These changes are occurring at extremely rapid rates in the Northeast Atlantic Arctic. The aim of this study was to investigate the impacts of these environmental changes on space use by white whales ( Delphinapterus leucas ) in Svalbard, Norway. Using a unique biotelemetry data set involving 34 animals, spanning two decades, habitat use and movement patterns were compared before (1995-2001) and after (2013-2016) a dramatic change in the regional sea ice regime that began in 2006...
2018: Movement Ecology
Kristaps Sokolovskis, Giuseppe Bianco, Mikkel Willemoes, Diana Solovyeva, Staffan Bensch, Susanne Åkesson
Background: High-latitude bird migration has evolved after the last glaciation, in less than 10,000-15,000 years. Migrating songbirds rely on an endogenous migratory program, encoding timing, fueling, and routes, but it is still unknown which compass mechanism they use on migration. We used geolocators to track the migration of willow warblers ( Phylloscopus trochilus yakutensis ) from their eastern part of the range in Russia to wintering areas in sub-Saharan Africa. Our aim was to investigate if the autumn migration route can be explained by a simple compass mechanism, based on celestial or geomagnetic information, or whether migration is undertaken as a sequence of differential migratory paths possibly involving a map sense...
2018: Movement Ecology
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