Academic literature on the topic 'Migratory shorebirds'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Migratory shorebirds.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Migratory shorebirds"
1
Mu, Tong, and David S. Wilcove. "Upper tidal flats are disproportionately important for the conservation of migratory shorebirds." Proceedings of the Royal Society B: Biological Sciences 287, no. 1928 (2020): 20200278. http://dx.doi.org/10.1098/rspb.2020.0278.
Full textAbstract:
Migratory animals play vital ecological roles in ecosystems worldwide, yet many species are threatened by human activities. Understanding the detailed patterns of habitat use throughout the migration cycle is critical to developing effective conservation strategies for these species. Migratory shorebirds undertake some of the longest known migrations, but they are also declining precipitously worldwide. To better understand the dynamics of shorebird declines along the East Asian–Australasian Flyway, we quantified the spatiotemporal foraging distribution of 17 migratory shorebirds at two critical stopover sites. We found that shorebirds exhibit substantial interspecific and site-specific differences in their foraging distributions. Notwithstanding these differences, however, the upper tidal flats appear to be especially important to most shorebirds by providing more than 70% of the birds' cumulative foraging time, twofold greater than their proportional area. Because the upper tidal flats are also more prone to coastal development, our findings may help to explain why shorebird populations along the flyway have declined much faster than the overall rate of tidal flat loss. Our work highlights the importance of protecting upper tidal flats to conserve migratory shorebirds and demonstrates the value of a detailed ecological understanding of habitat usage by migratory animals for conservation planning.
2
HUA, NING, KUN TAN, YING CHEN, and ZHIJUN MA. "Key research issues concerning the conservation of migratory shorebirds in the Yellow Sea region." Bird Conservation International 25, no. 1 (2015): 38–52. http://dx.doi.org/10.1017/s0959270914000380.
Full textAbstract:
SummaryThe widespread decline of migratory shorebirds in the East Asian-Australasian Flyway (EAAF) is one of the greatest crises for migrating birds. Among the migratory species with known population trends, 88% (22 of 25 species) show population declines, and seven have been listed as threatened or Near Threatened in the IUCN Red List. The decline of migratory shorebirds is related to the deterioration of stopping sites (including staging and stopping sites) in the Yellow Sea, including loss of intertidal wetlands, spread of invasive smooth cordgrass Spartina alterniflora on intertidal flats, an increase in pollution, and an increase in human disturbance. We review research concerning shorebird migration through the Yellow Sea and highlight key research activities required for the conservation of shorebirds in the region. These activities include: confirming the population consequences of loss of stopping sites, estimating migration timing and numbers of shorebirds at stopping sites, determining the differing abilities of species to use alternative habitats, understanding intra- and interspecific differences in the use of stopping sites, maintaining and expanding surveys on shorebirds and habitat condition, and identifying threats to shorebirds beyond habitat loss by reclamation. The information generated by these research activities is required for the design and selection of effective conservation actions to reverse the decline in shorebird populations.
3
LEE, JONG KOO, OK-SIK CHUNG, JIN-YOUNG PARK, et al. "Effects of the Saemangeum Reclamation Project on migratory shorebird staging in the Saemangeum and Geum Estuaries, South Korea." Bird Conservation International 28, no. 2 (2017): 238–50. http://dx.doi.org/10.1017/s0959270916000605.
Full textAbstract:
SummaryThe Saemangeum tidal flat, an important staging site for migratory shorebirds that travel the East Asian-Australasian (EAA) Flyway, was isolated from the eastern Yellow Sea in 2006 as part of a large-scale reclamation project. To gain a better understanding of the impacts that this reclamation has had on the long-distance migratory shorebirds that use the EAA Flyway, we examined the number of shorebirds visiting Saemangeum and three adjacent sites in the Geum Estuary (Yubu Island, the Janghang coastline, and the Geum River Channel) during the spring and fall prior to, and after, completion of the reclamation (2004–2013). A total of 48 shorebird species, including one Critically Endangered, three Endangered, and nine Near Threatened species, were observed over this period. Peak numbers of shorebirds recorded at sites in Saemangeum and the Geum Estuary following completion of the project were 74% below those recorded in 2004 and 2005, the years prior to reclamation activity. In Saemangeum, shorebird abundance declined by approximately 95% and 97.3% during the northward and southward migrations, respectively, as a result of reclamation. Although shorebird populations in the Geum Estuary increased by 5% and 20% during the northwards and southward migrations, respectively, these increases failed to offset the reduction in shorebird abundance in Saemangeum; overall, shorebird abundance at Saemangeum and the three adjacent sites in the Geum Estuary markedly declined over the reclamation period. Given the more favourable conditions of adjacent areas, sites in Saemangeum and the Geum Estuary no longer provide the habitat conditions necessary for long-distance migratory shorebirds. In order to improve habitat for staging migratory birds, we suggest that measures such as the conversion of an abandoned salt farm for use as roosting sites, the construction of artificial barriers to prevent human disturbance, and re-opening of the river-banks to facilitate water flow be implemented.
4
BURGER, JOANNA, CHRISTIAN JEITNER, KATHLEEN CLARK, and LAWRENCE J. NILES. "The effect of human activities on migrant shorebirds: successful adaptive management." Environmental Conservation 31, no. 4 (2004): 283–88. http://dx.doi.org/10.1017/s0376892904001626.
Full textAbstract:
The effect of human disturbance on migrant birds is a conservation issue of international importance, as is determining if disruption has long-term population effects. Disruptions can occur during migration, wintering, breeding and foraging. Thousands of shorebirds migrate through Delaware Bay (Atlantic Coast of North America) in a four-week period each spring; this is the largest concentration of shorebirds in the continental USA. Ecotourists come to see them, creating the potential for disruption. Data available on shorebird/human interactions at a migratory stopover over a 20-year period were used to describe the interactions of shorebirds and people from 1982–2002 and examine trends in human disruptions and shorebird behaviour during this time. The rate of disruptions caused by people increased during the 1980s, declined slightly by the early 1990s, and declined sharply by 2002. The decline in human activity along the beach was directly related to the conservation efforts of the New Jersey Endangered and Nongame Species Program, New Jersey Audubon, and others interested in preserving the shorebirds. In the 1980s, birdwatchers concentrated on the beaches on which it was easy to walk and which had the highest shorebird counts, because there were no restrictions on human behaviour. During this time, the average disturbance duration was over 10 min, regardless of the type of intruder, and shorebirds were often disrupted for over 40 min hr−1. Even though the number of disruptions declined over the study period, the percentage of shorebirds that flew away (and did not return within 10 min) did not change during the 1980s, and increased in 2002. The average time that shorebirds were disrupted per hour by people declined during this period (mainly because there were fewer people on the beaches). The Endangered and Nongame Species Program placed signs on shorebird foraging beaches, restricted access, built viewing platforms to contain ecotourists, and eventually patrolled key beaches and issued summonses for infractions. These activities were so effective that only one bird watcher disturbed the birds in 2002. Education was also vital to encouraging local residents not to walk or fish along these beaches during the spring migratory stopover, and to keep their dogs on a leash. These data support the importance of actions on the part of state agencies and conservation organizations to limit disruptions to foraging shorebirds during critical migratory stopovers, a problem faced by shorebirds in many temperate regions of the world.
5
Zhang, Yamian, Yi Zhu, Aojie Zuo, Li Wen, and Guangchun Lei. "Numerical Response of Migratory Shorebirds to Prey Distribution in a Large Temperate Arid Wetland, China." Scientifica 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/1297603.
Full textAbstract:
Wuliangsuhai Lake provides important breeding and stopover habitats for shorebirds. The health of this wetland ecosystem is rapidly deteriorating due to eutrophication and water pollution and environmental management is urgently needed. To explore the connections among ecosystem health, prey density, and shorebird populations, we conducted surveys of both the benthic macroinvertebrates and shorebirds in the shorebird habitat of the wetland during the 2011 autumn migration season. The abundance of both shorebirds and benthic macroinvertebrates varied significantly in both space and time. Our data showed a clear association between shorebird populations and the density of benthic macroinvertebrates, which explained 53.63% of the variation in shorebird abundance. The prey density was strongly affected by environmental factors, including water and sediment quality. Chironomidae were mainly found at sites with higher total phosphorus, but with lower sediment concentrations of Cu. Lymnaeidae were mainly found at sites with a higher pH, lower salinity, and lower concentrations of total phosphorus and Cu. Habitats with very high concentrations of total phosphorus, heavy metals, or salinity were not suitable for benthic macroinvertebrates. Our findings suggest that the reductions of nutrient and heavy metal loadings are crucial in maintaining the ecological function of Wuliangsuhai as a stopover habitat for migratory shorebirds.
6
Lilleyman, Amanda, Danny I. Rogers, Micha V. Jackson, Richard A. Fuller, Gavin O'Brien, and Stephen T. Garnett. "An artificial site provides valuable additional habitat to migratory shorebirds in a tropical harbour." Pacific Conservation Biology 26, no. 3 (2020): 249. http://dx.doi.org/10.1071/pc19036.
Full textAbstract:
Migratory shorebirds are declining in all transequatorial flyways, most rapidly in the East Asian–Australasian Flyway. Population trends for shorebirds have been derived at a flyway and continental scale, but changes at the local scale are less well understood. Here we compare trends in migratory shorebird populations using natural and artificial roost sites within a tropical harbour, examine possible drivers of change, and identify appropriate conservation management responses. Counts of 19 migratory shorebird species from 2010 and 2018 showed that total abundance increased at an average annual rate of 3.3% (95% CI=1.3–5.4%, P=0.001) across five natural roost sites. This was driven largely by increases in great knot, with most other species declining. At an artificial site in an adjacent shorebird area, total abundance increased at an average annual rate of 14.5% (95% CI=10.5–18.6%, P ≤ 0.000), with few species declining. These results suggest that there is a need to include both natural and artificial sites within shorebird conservation and management planning and that trends in different species can be driven by a combination of local and external drivers.
7
Jumilawaty, E., A. L. A. Nasution, and S. Siregar. "Shorebird community and diversity in Bagan Serdang Beach, North Sumatra." IOP Conference Series: Earth and Environmental Science 1115, no. 1 (2022): 012001. http://dx.doi.org/10.1088/1755-1315/1115/1/012001.
Full textAbstract:
Abstract The occurrence of shorebirds is strongly influenced by environmental factors, especially food availability. Shorebirds are closely linked to their habitat conditions, so they seek out feeding sites according to their life cycle. Coastal conditions that have changed due to human activities may affect the assemblage of shorebird community. The aim of this study is to determine the diversity of shorebird species and the factors that influence them. Bird observations were made for three days using the point count method while the number of individuals was estimated by using “block method”. The results revealed 17 shorebird species from the families, Charadriidae, Scolopacidae and Sternidae. The dominant species were Charadrius mongolus, Pluvialis fulva and Sterna hirundo. The number of species in the morning observations was higher than in the afternoon. The diversity index for migratory birds ranges from 1.16 to 1.96, which is relatively low. This study showed that mudflats in Bagan Serdang Beach, Pantai Labu District is occupied by shorebirds in this region.
8
Henriques, Mohamed, Teresa Catry, João Ricardo Belo, Theunis Piersma, Samuel Pontes, and José Pedro Granadeiro. "Combining Multispectral and Radar Imagery with Machine Learning Techniques to Map Intertidal Habitats for Migratory Shorebirds." Remote Sensing 14, no. 14 (2022): 3260. http://dx.doi.org/10.3390/rs14143260.
Full textAbstract:
Migratory shorebirds are notable consumers of benthic invertebrates on intertidal sediments. The distribution and abundance of shorebirds will strongly depend on their prey and on landscape and sediment features such as mud and surface water content, topography, and the presence of ecosystem engineers. An understanding of shorebird distribution and ecology thus requires knowledge of the various habitat types which may be distinguished in intertidal areas. Here, we combine Sentinel-1 and Sentinel-2 imagery and a digital elevation model (DEM), using machine learning techniques to map intertidal habitat types of importance to migratory shorebirds and their benthic prey. We do this on the third most important non-breeding area for migratory shorebirds in the East Atlantic Flyway, in the Bijagós Archipelago in West Africa. Using pixel-level random forests, we successfully mapped rocks, shell beds, and macroalgae and distinguished between areas of bare sediment and areas occupied by fiddler crabs, an ecosystem engineer that promotes significant bioturbation on intertidal flats. We also classified two sediment types (sandy and mixed) within the bare sediment and fiddler crab areas, according to their mud content. The overall classification accuracy was 82%, and the Kappa Coefficient was 73%. The most important predictors were elevation, the Sentinel-2-derived water and moisture indexes, and Sentinel-1 VH band. The association of Sentinel-2 with Sentinel-1 and a DEM produced the best results compared to the models without these variables. This map provides an overall picture of the composition of the intertidal habitats in a site of international importance for migratory shorebirds. Most of the intertidal flats of the Bijagós Archipelago are covered by bare sandy sediments (59%), and ca. 22% is occupied by fiddler crabs. This likely has significant implications for the spatial arrangement of the shorebird and benthic invertebrate communities due to the ecosystem engineering by the fiddler crabs, which promotes two vastly different intertidal species assemblages. This large-scale mapping provides an important product for the future monitoring of this high biodiversity area, particularly for ecological research related to the distribution and feeding ecology of the shorebirds and their prey. Such information is key from a conservation and management perspective. By delivering a successful and comprehensive mapping workflow, we contribute to the filling of the current knowledge gap on the application of remote sensing and machine learning techniques within intertidal areas, which are among the most challenging environments to map using remote sensing techniques.
9
Tang, Z., Q. Huang, Z. Nie, and Y. Yang. "Pollution threatens migratory shorebirds." Science 350, no. 6265 (2015): 1176–77. http://dx.doi.org/10.1126/science.350.6265.1176-c.
Full text
10
Lisson, Amanda, Kathryn H. Taffs, and Leslie Christidis. "Mapping foraging habitat for migratory shorebirds in their Australian non-breeding grounds and prioritising sites for conservation and management." Pacific Conservation Biology 23, no. 1 (2017): 32. http://dx.doi.org/10.1071/pc16011.
Full textAbstract:
Shorebird populations are declining worldwide as a result of the loss of the intertidal habitats upon which they depend. Conservation status is particularly dire for shorebirds on the East Asian–Australasian Flyway. While the flyway transects many international boundaries and involves numerous bilateral conservation agreements, management of remaining habitat at a local scale is imperative to conserving these species. Coastal habitat is affected by multiple anthropogenic stressors, including loss and degradation due to increasing demand for coastal land. In Australia, migration coincides with the summer holiday season when shorebirds are significantly impacted by human disturbance. Managers are frequently required to make trade-offs between wildlife conservation and anthropogenic land uses and when specific quantitative shorebird habitat data and mapping are absent, human interests will naturally take precedence. This paper demonstrates a method for mapping and prioritising management of shorebird non-breeding habitat using an Australian coastal site, the Richmond River estuary. Foraging habitat was surveyed and mapped using GIS with a range of attributes including habitat types, foraging values, disturbance levels and specific foraging distribution of each species. The results highlighted several important foraging areas that were impacted by disturbance and would require intervening management actions to reduce impacts on shorebirds. The GIS data created provide local managers with an effective tool to consider shorebird habitat in the decision-making process. This method could be replicated at other important shorebird habitat sites, leading to enhanced conservation of these declining species.
Dissertations / Theses on the topic "Migratory shorebirds"
1
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.
Full text
2
Grond, Kirsten. "Development and dynamics of gut microbial communities of migratory shorebirds in the Western Hemisphere." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35484.
Full textAbstract:
Doctor of Philosophy<br>Division of Biology<br>Brett K. Sandercock<br>Gastrointestinal microbiota play a vital role in maintaining organismal health, through facilitating nutrient uptake, detoxification and interactions with the immune system. Shorebirds vary widely in life-history characteristics, such as habitat, migration and breeding system, but the dynamics of their gut microbial communities are unknown. In my dissertation, I investigated composition and dynamics of gut microbiota in migratory shorebirds from embryos to 10 day old chicks, and determined environment and host-related factors affecting gut microbial communities of adults. First, I tested whether precocial chicks from three species of arctic-breeding shorebirds acquire gut microbiota before or after hatching using next-generation sequencing. In addition, I documented the dynamics of gut microbial establishment. I showed that gut microbiota were absent in shorebird embryos before hatching, but that stable gut communities established within the first three days after hatching. In addition, gut microbiota of young shorebird chicks were more similar to the environmental microbiome than later in life, suggesting that the environment is a likely source for microbial recruitment. After reaching adulthood, shorebirds migrate long distances, potentially exposing them to a wide range of microorganisms. Host phylogeny and environmental factors have both been identified as drivers of gut microbiota composition in birds in previous studies. The second part of my project aimed to compare the relative importance of host and environmental factors that underlie variation in gut microbiota composition in eight species of migratory shorebirds sampled across the North American Arctic. I found that sampling site was the main driver of variation in gut microbiota of Arctic-breeding shorebirds, and that site-related variation in gut microbiota of shorebirds was a result of differences in core bacterial taxa that occurred in more than half of the analyzed samples. A relatively large influence of local environment on gut microbiota composition of chicks and adults lead to the question: how does site affect pathogen prevalence in shorebirds? Migratory behavior has been hypothesized to have evolved as a response to variation in climatic conditions and food availability, to avoid predation, and to reduce risk of exposure to pathogens. The migratory escape hypothesis predicts avoidance of high disease prevalence areas through migration, and has been proposed as one of the main reasons that many bird species migrate to the Arctic for breeding. To test the migratory escape hypothesis in shorebirds, I screened for prevalence of seven known avian pathogens in shorebirds at different stages of migration. I did not detect the majority of pathogens we tested for, with the exception of Campylobacter jejuni and C. coli. Prevalence of C. jejuni in shorebirds was linked to sampling sites but not shorebird species. My dissertation is the first comprehensive study to broadly characterize the gut microbiota in shorebirds. Overall, local environment emerged as an important factor in shaping microbiota composition in Arctic-breeding shorebirds throughout my dissertation research. The role of local environment in shaping gut microbiota invites future investigations of the interactions among shorebirds and the microorganisms present in their environment, as well as the functions gut microbiota perform within their shorebird hosts.
3
Miller, Aileen Kilpatrick. "Site Selection by Migratory Shorebirds in Oregon Estuaries Over Broad and Fine Spatial Scales." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/443.
Full textAbstract:
Many migratory shorebirds rely on estuaries as stop-over sites to refuel during migration, and the loss of stop-over sites is a primary threat to shorebird populations on the West Coast of the United States (e.g. Calidris alpina pacifica, C. mauri). Conservation and research has focused on the largest of these sites; however, smaller estuaries also host thousands of migratory shorebirds. Furthermore, the reasons for site selection are largely unknown. Estuarine inter-tidal microhabitats are non-uniform and both abiotic and biotic factors may serve as predictors of whether an abundance of shorebirds will use a site. I investigated shorebird site selection on broad and fine scales within Oregon estuaries. To identify factors that relate to shorebird abundance on large spatial scales, I compiled shorebird abundance data from estuaries throughout the Pacific Northwest as well as data on site quality factors. To investigate site selection on a finer scale I measured shorebird abundance, habitat characteristics, and food resources―invertebrates and a newly considered source, biofilm―within two Oregon estuaries during the fall migration period. Finally, I examined whether channels are preferentially used by foraging Calidrid shorebirds by conducting observations during the spring migration. I investigated whether channels may be superior foraging habitat possibly because prey are more abundant, are found at shallower depths, or because sediments are more penetrable (increasing the opportunity for shorebird probing) by taking infauna cores and measuring force required to probe in the sediment at channel and open mudflat sites. Among estuaries, shorebird densities in spring were best predicted by estuary size, as opposed to the amount of any one habitat. During fall migration, the amount of grassland in the surrounding watershed was also a good predictor, pointing to the probable importance of roost sites as well as feeding grounds. The amount of infauna also related to the density of shorebirds using a site. Within estuaries, shorebird distribution in the inter-tidal region was not generally predicted by prey abundance. Channels were used preferentially by shorebirds, and infauna abundance along channels was greater than in the surrounding mudflats. The more penetrable sediments of the channel also made it easier for shorebirds to probe and capture prey. Identification of these large-scale and fine-scale factors that influence site quality for migratory shorebirds will assist land and wildlife managers' efforts to protect these species.
4
Appleman, Kelley H. "Measuring the recreational use value of migratory shorebirds a stated preference study of birdwatching on the Delaware Bay /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 116 p, 2009. http://proquest.umi.com/pqdweb?did=1885462211&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Full text
5
Obernuefemann, Kelsey Piper. "Assessing the Effects of Scale and Habitat Management on the Residency and Movement Rates of Migratory Shorebirds at the Tom Yawkey Wildlife Center, South Carolina." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-12032007-112436/.
Full textAbstract:
I evaluated the influence of inter-wetland distance and the timing of drawdowns on local daily survival (residency) and movement probability of Semipalmated Sandpipers (Calidris pusilla) during the springs of 2006 and 2007 at the Tom Yawkey Wildlife Center (YWC), South Carolina. There is growing interest in determining the scale at which coastal wetlands are functionally connected and how management influences their use by migrant shorebirds. Parameters of interest were estimated using multi-state models and encounter histories obtained from resight and telemetry data. Data were collected in the spatial context of three clusters of multiple wetland units each separated by distances of 2.6 to 4.1 km and two hydrologic treatments--a slow and fast draw down. Mean length of stay was 2.99 d (95% CIs = 2.45 - 3.52) in 2006 and 4.57 d (95% CIs = 2.59 ? 8.92) in 2007. Residency probability was influenced by a negative and significant interaction between estimated percent fat at capture and southerly wind speed. This meant that differences in departure rates by birds with varying body conditions were minimized. Sixty-five percent of all marked birds stayed within 2 km from their banding location. Movement probabilities were negatively related to inter-cluster distance and bird density. In the spatial context of YWC there was functional connectivity among the clusters that were ~2.5 km apart; movement was negligible between units at nearly twice that distance (4.1 km). Contrary to expectations, the average probability of surviving and not moving for birds in slow-managed units was higher than birds in fast-managed units (PhiSS 2006 = 0.488, PhiSS 2007 = 0.654). On average, birds marked in fast-managed units moved out at high rates (Psi 2006 = 0.399, Psi 2007 = 0.467). Higher prey biomass and bird density in slow-managed units influenced observed residency and movement rates. My findings advocate for conservation strategies that identify functionally connected wetland units and suggested that habitat supplementation for shorebirds during peak migration can be met by carefully planned staggered, slow drawdowns. The effectiveness of fast drawdowns is vulnerable to differential prey base quality, presence of birds on previously exposed habitat, failure of water control structures to operate properly, and the possibility of mismatching peak migration and rapid drawdown implementation.
6
Hayhow, Daniel Beck. "Consequences of winter habitat use in a migratory shorebird." Thesis, University of East Anglia, 2009. https://ueaeprints.uea.ac.uk/10607/.
Full textAbstract:
In this thesis I explore the importance of using different habitat types in winter for a migratory shorebird, the Icelandic Black-tailed godwit Limosa limosa islandica. Godwits use a mixture of estuarine and freshwater wetland habitats across all major wintering regions. The Irish wintering population of black-tailed godwits makes up c, 20% of the flyway population, and these birds use coastal mudflats and adjacent grassland habitats throughout the winter. In addition, very large numbers congregate on inland wetland ‘callows’ in late winter and spring. The Icelandic godwit population is currently increasing, however, numbers of godwits wintering in Ireland have not increased as rapidly as elsewhere in the winter range over the last 40 years. Using detailed behavioural studies, I show that grasslands in Ireland provide essential resources for godwits, as prey consumption rates on the mudflats are insufficient to meet energetic requirements. Despite their importance, grasslands receive virtually no protection. Surveys of field selection by godwits throughout southern Ireland indicate that small, enclosed fields are avoided but that godwits use large, open fields in both urban and rural dominated areas. Levels of urbanisation also have little impact on the use of resources on mudflats or grasslands by godwits. Candidate fields for inclusion within protected areas would therefore ideally be large, open fields situated throughout urban and rural areas. Finally, I explore the evidence for increasing use of grassland habitats by godwits wintering in the east of England, where rates of population increase have been particularly high and annual survival has been estimated to be lower than other winter regions. Count information and records of individually marked godwits indicate a rapid shift in habitat use since the 1990s, with inland grasslands now being used by large numbers of godwits. These sites are also being used progressively earlier in the winter, which may indicate that estuarine prey resources are also limited in the east of England. Thus, while there is evidence that estuarine habitats are preferred by godwits in winter, grasslands are also essential for maintaining a large proportion of the Icelandic black-tailed godwit population, and improving protection of these habitats should thus be a priority.
7
Paredes, Samantha Jane. "The role of offsets in compensating for damage in the coastal and marine environments." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/86512/3/Samantha_Paredes_Thesis.pdf.
Full textAbstract:
This thesis examines the extent of which economic instruments can be used to minimise environmental damage in the coastal and marine environments, and the role of offsets to compensate for residual damage. Economic principles are used to review current command and control systems, potential incentive based mechanisms, and the development of appropriate offsets. Implementing offsets in the marine environment has a number of challenges, so alternative approaches may be necessary. The study finds that offsets in areas remote from the initial impact, or even to protect different species, may be acceptable provided they result in greater conservation benefits than the standard like-for-like offset. This study is particularly relevant for the design of offsets in the coastal and marine environments where there is limited scope for like-for-like offsets.
8
Spencer, Jennifer. "Migratory shorebird ecology in the Hunter estuary, sourth-eastern Australia." Thesis, Australian Catholic University, 2010. https://acuresearchbank.acu.edu.au/download/1bdcaf2a2dcfc577fc42829166597aa52a668ca6363ed3f997106328c591c27e/12900566/65093_downloaded_stream_318.pdf.
Full textAbstract:
Migratory shorebirds inhabit the shorelines of rivers, wetlands, oceans and lakes, where they need to rest and feed during their non-breeding seasons to prepare for their annual migrations to breeding grounds in the Arctic. Along their flyways many non-breeding and stop-over sites are under pressure from coastal developments, disturbance, global sea level rise and water resource development. In this thesis I investigated how migratory shorebirds responded to habitat loss in the Hunter estuary, a non-breeding site in south-eastern Australia, and how they used remaining estuarine habitats. The Hunter estuary is a wetland of international importance but has a long history of modification from industrial and urban development which began in the late 1800s. Based on recent counts (2001-07), the Hunter estuary now only supports two species in internationally significant numbers (Eastern Curlews Numenius madagascariensis and Sharp-tailed Sandpipers Calidris acuminata) compared to seven species listed from earlier records (1970-90). Overall, I detected a 42% decline in total numbers of migratory shorebirds (1981 - 2007) in the estuary, with significant declines (44 - 83%) in four species. The tidal cycle was the main driver for the distribution of shorebirds in the Hunter estuary with most species feeding in exposed intertidal mudflats at low tide and being forced to rest at high tide. Eastern Curlews roosted on artificial structures and sandbanks during the day but at night they moved to flooded saltmarshes. Shallow water was important at the roost sites, as it provided a mechanism for cooling on warm days and for detecting predators at night. Vigilance behaviour made up 30 - 40% of Eastern Curlews roosting time, but vigilance increased by about 20% prior to their migration (Feb-Mar). Day roosting habitat was most limited during spring high tides and periods of high disturbance. Disturbance was significant at the day roosts (0.8 - 1.;7 hr-1), mostly from birds of prey, but Eastern Curlews spent longer in flight after being disturbed by people. The tidal period and tide type (neap or spring) determined shorebird distribution on intertidal mudflats. Intertidal mudflats in Fullerton Cove provided important feeding habitat for many species, but artificial mudflats impounded in the North Arm of the Hunter River extended foraging time for small shorebird species which fed until the tide forced their relocation to the main day roosts. These impoundments increased in importance for all shorebirds during neap cycles and one to three hours before high tide when the availability of intertidal mudflats was limited in the rest of the Hunter estuary. Overall, a high percentage (> 90%) of Bar-tailed Godwits Limosa lapponica foraged during low tides and 50% of godwits continued to forage up to three hours after low tide. Foraging Bar-tailed Godwits were most successful in mudflats in Fullerton Cove but prey availability was not uniform among mudflats. Saltmarshes provided major night roosting habitat and important feeding habitat for small shorebird species, including Sharp-tailed Sandpipers, which foraged in saltmarsh regardless of the tidal period. Generally, most shorebird species avoided saltmarshes with large stands of mangroves, preferring sites with open saltmarsh and tidal pools. Changes in attitudes towards wetlands management in the last three decades coincided with the formal protection and rehabilitation of shorebird habitat in the Hunter estuary. In 1995, culverts were removed to restore tidal flushing to estuarine wetlands on Ash Island, a highly modified wetland complex in the Hunter estuary.;Although high inter-annual variability in migratory shorebird populations made it difficult to detect short-term responses to wetland manipulation, long-term monitoring (1994-2007) indicated that increased tidal flushing had promoted mangrove expansion indirectly reducing habitat availability for shorebirds. Mangrove removal has the potential to restore this imbalance, but further studies are needed to support an adaptive management approach to managing shorebird habitat in the Hunter estuary. The cumulative loss and degradation of estuarine habitats in south-eastern Australia and other parts of the East Asian-Australasian flyway continue to threaten shorebird populations, but these impacts could be addressed through greater commitment to the protection and active management of shorebird roosting and feeding habitats in their non-breeding range.
9
Alves, Jose Augusto Belchior. "Implications of migration strategies and winter location in a migratory shorebird." Thesis, University of East Anglia, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522397.
Full textAbstract:
The work presented in this thesis investigates the implications of migration strategies and choice of winter location in a population of a migratory shorebird, the Icelandic Blacktailed Godwit Limosa limosa islandica. Measures of the environmental conditions experienced by individuals in different parts of the winter range are used to explore the energetic trade-offs associated with choice of winter location. The costs of migrating different distances to the Icelandic breeding grounds are also explored, as winter locations range from Britain and Ireland to Iberia. These studies suggest that winter locations in the south of the range are energetically more favourable, and that the resources available at these sites are more than sufficient to fuel migration. However, Icelandic godwits wintering in Iberia have to fly more than twice the distance to reach Iceland than their conspecifics in the north of the winter range, and models of potential flight range indicate that most birds from Iberia have to stop and refuel during spring migration. Despite this, population-wide tracking of marked individuals indicates that godwits from southern winter locations are able to reach Iceland earlier than birds from more northerly winter sites. In the Iberian winter sites, Icelandic black-tailed godwits overlap with continental black-tailed godwits (Limosa limosa limosa), but detailed field studies in Portugal indicate clear habitat segregation between these two subspecies, with Icelandic godwits primarily foraging on estuarine mudflats and continental godwits foraging in rice-fields. Estuarine prey resources vary in availability and profitability and, as in most shorebird species, female godwits are larger than males and have higher energy requirements. Thus, the extent and implications of sex differences in distribution and resource use are explored in this thesis. Finally, the impact of ongoing efforts to reduce organic inputs to the Tejo estuary, west Portugal (the main Iberian winter site), on the distribution of black-tailed godwits and their invertebrate prey are explored.
10
"Survival, effects of habitat change, and migratory tactics of Nearctic-Neotropical migratory shorebirds." Tulane University, 2021.
Find full textBooks on the topic "Migratory shorebirds"
1
Silva, Rex I. De. Mundel Lake (Sri Lanka): An important habitat for migratory shorebirds. Wildlife & Nature Protection Society, 1992.
Find full text
2
Erftemeijer, Paul L. A. Migratory shorebirds and their habitats in the inner Gulf of Thailand. Wetlands International - Thailand Programme, Bird Conservation Society of Thailand, 1999.
Find full text
3
Lawler, Wayne. Wader roost construction in Moreton Bay: A feasibility study into the construction of migratory wader (shorebird) high tide roosts in Moreton Bay, Qld., using Raby Bay as a case study. Queensland Dept. of Natural Resources, 1995.
Find full text
4
Kerin, Jackie, and Milly Formby. Shorebird Flying Adventure. CSIRO Publishing, 2022. http://dx.doi.org/10.1071/9781486314508.
Full textAbstract:
Join Milly on her microlight adventure and discover how amazing and awesome migratory shorebirds are!
 
 In A Shorebird Flying Adventure you’ll take a trip to the Arctic tundra and back. On the way you’ll meet the birds who travel phenomenal distances every year and explore their precious wetland habitats and breeding grounds. Learn fascinating facts about their diet and find out Milly’s top tips to tell one species from another. Grab your binoculars, hop on board and let’s go bird watching!
 
 Reading level varies from child to child, but we recommend this book for ages 6 to 9.
5
1957-, Wiedenfeld David A., and Barataria-Terrebonne National Estuary Program, eds. Migratory bird (neotropical and shorebirds) management plan for the Barataria and Terrebonne Basins of Louisiana. Barataria-Terrebonne National Estuary Program Office, 1996.
Find full text
6
Thomas, Richard, Sarah Thomas, David Andrew, and Alan McBride. Complete Guide to Finding the Birds of Australia. CSIRO Publishing, 2011. http://dx.doi.org/10.1071/9780643097865.
Full textAbstract:
First published in 1994, The Complete Guide to Finding the Birds of Australia was the first ever book of its type in Australia – a complete guide to locating every resident bird species in Australia, plus supplementary information on where to find rarities, migratory species and logistical information.
 This fully revised second edition expands on the best-selling appeal of the first, describing the best-known sites for all of Australia’s endemic birds, plus vagrants and regular migrants such as seabirds and shorebirds. It covers all states and territories, and is the first guide to include all of Australia’s island and external territories. A comprehensive Bird Finder Guide details site information on all Australian bird species, and the authors provide valuable travel advice, including transport, climate and accommodation.
 Profusely illustrated with colour photographs of interesting, unique or unusual Australian birds, this book is a must-have for all birdwatchers living in Australia or visiting from overseas.
7
McPhee, Daryl. Environmental History and Ecology of Moreton Bay. CSIRO Publishing, 2017. http://dx.doi.org/10.1071/9781486307227.
Full textAbstract:
The south-east Queensland region is currently experiencing the most rapid urbanisation in Australia. This growth in human population, industry and infrastructure puts pressure on the unique and diverse natural environment of Moreton Bay. Much loved by locals and holiday-goers, Moreton Bay is also an important biogeographic region because its coral reefs, seagrass beds, mangroves and saltmarshes provide a suitable environment for both tropical and temperate species. The bay supports a large number of species of global conservation significance, including marine turtles, dugongs, dolphins, whales and migratory shorebirds, which use the area for feeding or breeding.
 Environmental History and Ecology of Moreton Bay provides an interdisciplinary examination of Moreton Bay, increasing understanding of existing and emerging pressures on the region and how these may be mitigated and managed. With chapters on the bay's human uses by Aboriginal peoples and later European settlers, its geology, water quality, marine habitats and animal communities, and commercial and recreational fisheries, this book will be of value to students in the marine sciences, environmental consultants, policy-makers and recreational fishers.
Book chapters on the topic "Migratory shorebirds"
1
Rodríguez, José F., and Alice Howe. "Estuarine Wetland Ecohydraulics and Migratory Shorebird Habitat Restoration." In Ecohydraulics. John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118526576.ch22.
Full textReports on the topic "Migratory shorebirds"
1
Miller, Aileen. Site Selection by Migratory Shorebirds in Oregon Estuaries Over Broad and Fine Spatial Scales. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.443.
Full text