Academic literature on the topic 'Migratory ecology'

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Journal articles on the topic "Migratory ecology"

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Showers, William B. "MIGRATORY ECOLOGY OF THE BLACK CUTWORM." Annual Review of Entomology 42, no. 1 (1997): 393–425. http://dx.doi.org/10.1146/annurev.ento.42.1.393.

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Sawyer, Hall, and Matthew J. Kauffman. "Stopover ecology of a migratory ungulate." Journal of Animal Ecology 80, no. 5 (2011): 1078–87. http://dx.doi.org/10.1111/j.1365-2656.2011.01845.x.

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Ralph, C. John, Thomas E. Martin, and Deborah M. Finch. "Ecology and Management of Neotropical Migratory Birds." Ecology 78, no. 3 (1997): 963. http://dx.doi.org/10.2307/2266078.

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Kitagawa, Takashi, and Yoshinori Aoki. "Viewpoints of high migratory tuna species ecology." Physics of Life Reviews 20 (March 2017): 54–56. http://dx.doi.org/10.1016/j.plrev.2017.01.002.

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Sabal, Megan C., Mark S. Boyce, Corie L. Charpentier, et al. "Predation landscapes influence migratory prey ecology and evolution." Trends in Ecology & Evolution 36, no. 8 (2021): 737–49. http://dx.doi.org/10.1016/j.tree.2021.04.010.

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Namgail, Tsewang, John Y. Takekawa, Sivananinthaperumal Bala-Chandran, Ponnusamy Sathiyaselvam, Taej Mundkur, and Scott H. Newman. "Space use of wintering waterbirds in India: Influence of trophic ecology on home-range size." Current Zoology 60, no. 5 (2014): 616–21. http://dx.doi.org/10.1093/czoolo/60.5.616.

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Abstract Relationship between species’ home range and their other biological traits remains poorly understood, especially in migratory birds due to the difficulty associated with tracking them. Advances in satellite telemetry and remote sensing techniques have proved instrumental in overcoming such challenges. We studied the space use of migratory ducks through satellite telemetry with an objective of understanding the influence of body mass and feeding habits on their home-range sizes. We marked 26 individuals, representing five species of migratory ducks, with satellite transmitters during two consecutive winters in three Indian states. We used kernel methods to estimate home ranges and core use areas of these waterfowl, and assessed the influence of body mass and feeding habits on home-range size. Feeding habits influenced the home-range size of the migratory ducks. Carnivorous ducks had the largest home ranges, herbivorous ducks the smallest, while omnivorous species had intermediate home-ranges. Body mass did not explain variation in home-range size. To our knowledge, this is the first study of its kind on migratory ducks, and it has important implications for their conservation and management.
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Erickson, Richard A., Jay E. Diffendorfer, D. Ryan Norris, et al. "Defining and classifying migratory habitats as sources and sinks: The migratory pathway approach." Journal of Applied Ecology 55, no. 1 (2017): 108–17. http://dx.doi.org/10.1111/1365-2664.12952.

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Rushing, Clark S., Thomas B. Ryder, James F. Saracco, and Peter P. Marra. "Assessing migratory connectivity for a long-distance migratory bird using multiple intrinsic markers." Ecological Applications 24, no. 3 (2014): 445–56. http://dx.doi.org/10.1890/13-1091.1.

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Yong, Wang, Deborah M. Finch, Frank R. Moore, and Jeffrey F. Kelly. "Stopover Ecology and Habitat Use of Migratory Wilson's Warblers." Auk 115, no. 4 (1998): 829–42. http://dx.doi.org/10.2307/4089502.

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Ralph, C. John. "Neotropical Migratory Birds." Ecology 78, no. 3 (1997): 963–64. http://dx.doi.org/10.1890/0012-9658(1997)078[0963:nmb]2.0.co;2.

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Dissertations / Theses on the topic "Migratory ecology"

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Woods, John G. "Ecology of a partially migratory elk population." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/32392.

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In this thesis I investigate the ecology of a partially migratory (<100% of the animals migrate) population of elk (Cervus elaphus) in the Canadian Rockies. I radio-tagged elk in a 330 km² area of the Bow River valley (BRV) in Banff National Park, Alberta and followed them for 36 months. Elk movements to adjacent watersheds expanded the study area to 2900 km². My goals were to describe the seasonal movements made by BRV elk and to reach some understanding of the causes of these movements. The M/R (migrant/resident) ratios for adult bulls and adult cows were 4.3 and 0.5 respectively. Classified ground counts revealed that adult bulls made up only 11% of the population and that the overall M/R ratio for the population was 0.6. Migrations did not take elk beyond the foraging range of timber wolves (Canis lupus), their principal predator. Three cows changed migration status between years and some migrants were sympatric with residents during the rutting (breeding) season. These observations are consistent with the hypothesis that migration in elk is a conditional ESS (evolutionarily stable strategy). Although 1 adult radio-tagged bull dispersed, individual annual home-ranges of the remaining elk overlapped from year-to-year. Elk were strongly philopatric to winter, summer, and rutting ranges. There were no differences detected in the relative philopatry of bulls and cows, or of migrants and residents. Bulls had average 1-way migrations of 30 km horizontally and 840 m vertically. Cows had average 1-way migrations of 36 km horizontally and 1079 m vertically. The net energy and time investments for these movements were calculated and judged to be trivial. Elk on both high and low elevation ranges ate primarily grasses and sedges during the autumn, winter, and spring, and the leaves of deciduous shrubs during the summer. Similarities outweighed differences between high and low elevation ranges. Elk population characteristics (numbers, composition, survival, recruitment, predation, parasites, animal morphology) were measured during 1985-91 and compared with similar data gathered during 1944-69. In most respects, the population has not changed over these years and little is known of density-dependent processes.<br>Science, Faculty of<br>Zoology, Department of<br>Graduate
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Cortes, Kevin Michael. "Migratory Ecology and Wing Morphology of North Dakota Bats." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/29797.

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Understanding links between a species? migratory behavior, wing morphology, and foraging strategy can provide insight into factors driving the evolution of behavioral and ecological responses. The first chapter of this thesis examines the use of a river corridor as a migratory guide for bats. Results indicated no seasonal movement along the Missouri River corridor, indicating that the river was not being used as a key feature for migration. These results align with other recent studies. The second chapter examined the impacts of foraging habitat on wing morphology in two bat species. Expected differences between species were found in the wing shapes of the study species. No biologically significant differences were identified within species across different habitats. High gene flow and preferential habitat use may explain this. The results of these studies build upon past work on bats in North Dakota and provide insight into the behavior and morphology of bats.
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McCabe, Jennifer D. "Explaining migratory behaviors using optimal migration theory." Thesis, The University of Maine, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10096288.

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<p> Bird migration is the regular seasonal movements between breeding and nonbreeding grounds. In general, birds that breed in the Northern Hemisphere tend to migrate northward in the spring to take advantage of increasing insect populations and lower predation pressures and fly south when food availability and weather conditions decline. Embarking on a journey that can stretch a thousand miles round trip is a dangerous and arduous undertaking. While en route migrants must stop and feed to replenish their depleted energy reserves, often in unfamiliar locations with unknown predation pressures. They also must react to weather conditions during flight and while on the ground. Additionally, areas of high quality habitats where birds can refuel efficiently and safely may be few and far between. Therefore, it's not surprising that mortality rates can be higher during migration than at any other period of the year. Behavioral decisions such as where and where to stop, how long to stay, and when to leave all involve costs and benefits with an ultimate goal to balance the costs and benefits on order to achieve a successful and efficient migration. Optimal migration theory, aims to explain how migrants balance behavioral and physiological parameters of migration that minimize total time spent on migration, total energy expended, or mortality risk. The eventual result of these optimization pressures is thought to be a gradient of behavioral strategies that optimize different combinations of the three currencies: time, energy, and risk. I investigated how migratory behaviors of North American songbirds in the autumn balance the three currencies. More specifically I 1) explored how stopover site selection varies across migratory strategies at the landscape (Chapter 2) and habitat-patch (Chapter 3) scale; 2) investigated the importance of wind for the evolution and maintenance of migratory routes (Chapter 4); and 3) explored how selection of wind conditions for migratory departure affects overall behavioral strategies (Chapter 5). With this research, I hope to further our predictive abilities of migratory behaviors under various environmental and geographic situations using an optimal migration framework.</p>
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Bayly, Nicholas J. "Fuelling ecology and migratory strategies : a study of two Acrocephalus warblers." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404106.

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Gauld, Niall Roderick. "The behavioural ecology of migratory salmonids in the River Tweed, UK." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10722/.

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This study investigated various life history stages of salmonids within the River Tweed, UK with a focus on migratory movements. The River Tweed is a large upland river situated on the border between Scotland and England and is home to some of the healthiest stocks of Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) in the UK. The research undertaken as part of this thesis aims to assess how management can be improved to aid the migration of salmonids moving within freshwater. This is of particular importance due to increased demand for renewable energy including small scale hydropower as well as legislation that demands improved fish passage within rivers such as the Water Framework Directive. Sea trout smolts were captured and acoustic tagged to assess the roles that in river obstructions such as weirs play on their migration between years with varying river flow. The two study years varied radically in flow levels due to the incidences of hydrological drought in 2010 significant differences were observed in the degree of delay smolts experienced at weirs as well as differing responses to flow during years. Sea trout and salmon were acoustic tagged and tracked during their freshwater spawning migration. The aim of the study was to examine the interspecific differences in spawning migration such as spawning location and movement rate during migration. By looking at migration rate of sea trout and salmon it was observed that both species decreased their migratory rate the further into the river system they moved. It was also observed that sea trout and salmon spawned in different locations, with sea trout using tributaries and salmon using lower stretches of the Tweed. The small scale movements of freshwater resident trout was studied. Freshwater resident trout tend to have relatively small home ranges and often hold a territory within their home range. As a result they also tend to rapidly home back to their territory after being displaced from it. As such, the study aimed to assess the degree to which brown trout home after being displaced, particularly whether being offered a choice of empty territories at their site of displacement would affect their homing behaviour. The study found that there was no apparent difference in homing behaviour observed between treatment groups offered empty territories at their site of displacement compared to controls that were displaced into fully populated sites. Continued research into the behaviour of salmonid species is important due to increasing demand on water resources, future conflict between man and fishes water needs is inevitable.
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Greenlee, Erin Symonds. "The Effects of a Warming Climate on the Migratory Strategies of a Putatively Non-Migratory Bird, the Gray Jay (Perisoreus canadensis)." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338485900.

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Davis, Andrew K. "The stopover ecology of migratory landbirds on Bon Portage Island, Nova Scotia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37793.pdf.

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Frank, Maureen G. "Migratory Waterbird Ecology at a Critical Staging Area, Great Salt Lake, Utah." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4940.

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Despite the hemispheric importance of Great Salt Lake (GSL) as a staging area for migratory birds, little is known about the resources that GSL provides to these birds, or how changes to the GSL ecosystem might impact the avian community. Three species of migratory waterbirds that stage at GSL are Wilson’s phalaropes (Phalaropus tricolor), red-necked phalaropes (Phalaropus lobatus), and eared grebes (Podiceps nigricollis). My objective for this research was to study the impacts of prey availability on the staging ecology of these species. In Chapter 2, I examined the use of GSL habitats by both species of phalaropes. In the high-salinity bays of GSL, phalaropes were most strongly associated with shallow water. In the low-salinity bay, there were no strong associations between phalarope presence and particular habitat characteristics. In Chapter 3, I analyzed the behaviors of phalaropes relative to prey densities. Phalaropes commonly foraged in Carrington Bay, which had the highest densities of brine fly (Ephydridae) adults, and in Farmington Bay, which had high densities of benthic macroinvertebrates. Foraging behavior differed between Wilson’s and red-necked phalaropes, with Wilson’s phalaropes spinning more often than red-necked phalaropes. In Chapter 4, I examined interannual and nightly variations in eared grebe fall migration departures in relation to prey availability and environmental conditions. Eared grebes began migration relatively early when lake temperatures were relatively warm, densities of brine shrimp (Artemia franciscana) adults were high, and densities of brine shrimp cysts were low. The likelihood that eared grebes would depart on a given night was positively associated with the average barometric pressure 12 hours prior to sunset. The resources provided by GSL support substantial proportions of the staging populations of phalaropes and eared grebes. Management efforts should seek to maintain the habitats and resources needed by phalaropes and eared grebes at GSL. Future large-scale diversions of freshwater may threaten GSL’s suitability as a staging area for these birds.
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Strum, Khara M. "Exposure of migratory shorebirds to organophosphorus and carbmate pesticides at migratory stopover and non-breeding sites in the western hemisphere." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/807.

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Dossman, Bryant C. "Stopover Departure and Movement Behaviors of Migratory Songbirds." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1428055119.

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Books on the topic "Migratory ecology"

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Finch, Deborah M. Population ecology, habitat requirements, and conservation of neotropical migratory birds. Rocky Mountain Forest and Range Experiment Station, 1991.

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Finch, Deborah M. Population ecology, habitat requirements, and conservation of neotropical migratory birds. Rocky Mountain Forest and Range Experiment Station, 1991.

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Chua, Ee Kiam. Wetlands in a city: The Sungei Buloh Wetland Reserve. Simply Green, 2010.

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McCarthy, Michael. Say goodbye to the cuckoo: Migratory birds and the impending ecological catastrophe. Ivan R. Dee, 2010.

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McCarthy, Michael. Say goodbye to the cuckoo: Migratory birds and the impending ecological catastrophe. Ivan R. Dee, 2010.

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Say goodbye to the cuckoo: Migratory birds and the impending ecological catastrophe. Ivan R. Dee, 2010.

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World Bank. Migratory Fishes of South America: Biology, Fisheries and Conservation Status. The World Bank, 2004.

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McCarthy, Michael. Say goodbye to the cuckoo. John Murray, 2009.

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The game of conservation: International treaties to protect the world's migratory animals. Ohio University Press, 2009.

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Franklin, Paul Stephen. The migratory ecology and terrestrial habitat preferences of the great crested newt: Triturus cristatus : at Little Wittenham Nature Reserve. [Little Wittenham Nature Reserve in collaboration with De Montfort University], 1993.

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Book chapters on the topic "Migratory ecology"

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Biebach, Herbert. "Energetics of Winter and Migratory Fattening." In Avian Energetics and Nutritional Ecology. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0425-8_9.

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Sinu, Palatty Allesh, Anjana P. Unni, and Thomas Jose. "Biotic Seed Dispersal Mechanisms of Tropical Rain Forests – Bats, Fishes, and Migratory Birds." In Reproductive Ecology of Flowering Plants: Patterns and Processes. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4210-7_14.

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Nelson, M. Lee, Thomas E. McMahon, and Russell F. Thurow. "Decline of the migratory form in bull charr, Salvelinus confluentus, and implications for conservation." In Ecology, behaviour and conservation of the charrs, genus Salvelinus. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1352-8_30.

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Svenning, Martin-A., and Nils Gullestad. "Adaptations to stochastic environmental variations: the effects of seasonal temperatures on the migratory window of Svalbard Arctic charr." In Ecology, behaviour and conservation of the charrs, genus Salvelinus. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1352-8_13.

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Huettmann, Falk. "Effective Poyang Lake Conservation? A Local Ecology View from Downstream Involving Internationally Migratory Birds When Trying to Buffer and Manage Water from HKH with ‘Modern’ Concepts." In Hindu Kush-Himalaya Watersheds Downhill: Landscape Ecology and Conservation Perspectives. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36275-1_6.

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Newton, Ian. "Migratory flight." In The Migration Ecology of Birds. Elsevier, 2007. http://dx.doi.org/10.1016/b978-012517367-4.50003-6.

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Newton, Ian. "Variations on a migratory theme." In The Migration Ecology of Birds. Elsevier, 2007. http://dx.doi.org/10.1016/b978-012517367-4.50016-4.

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Ulanowicz, Robert E. "Quantifying Constraints upon Trophic and Migratory Transfers in Landscapes." In Landscape Ecology. CRC Press, 2020. http://dx.doi.org/10.1201/9780429148996-12.

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Ulanowicz, Robert. "Quantifying Constraints upon Trophic and Migratory Transfers in Landscapes." In Landscape Ecology. CRC Press, 1999. http://dx.doi.org/10.1201/9781420048674.ch8.

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"3 Migration and language ecology: enlightenment to famine." In Linguistic Communities and Migratory Processes. De Gruyter Mouton, 2020. http://dx.doi.org/10.1515/9783110614190-003.

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Reports on the topic "Migratory ecology"

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Finch, Deborah M. Population ecology, habitat requirements, and conservation of neotropical migratory birds. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1991. http://dx.doi.org/10.2737/rm-gtr-205.

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