Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"waders"”.
-
Long-term population trends and habitat preferences of waders at Strandfontein wastewater treatment works
… wader habitat, and attract larger numbers of waders to Strandfontein.
-
Studies of the foods and feeding ecology of wading birds.
In this thesis are described the populations of waders (Aves: Charadrii) occurring on the Ribble Estuary, Lancashire, special reference being made to the eleven species comprising the bulk of the shore wader population. The daily routine of these birds is described including the time spent in …
-
Moult strategies of oystercatchers (Haematopidae) in New Zealand, Australia and South Africa
… have examined the moult strategies of migrant waders (Charadrii), only a few have focused on non-migrant waders. As part of a collection of papers that have analysed moult using the Underhill-Zucchini moult model, we used this method to observe the moult strategies of species within the family …
-
Aspects of the ecology of migrant shorebirds (Aves: Charadrii) at the Berg River estuary, South Africa
… of the estuary for Palearctic-breeding migratory waders and to identify the factors affecting their distribution, abundance and behavioural patterns. The findings were related to the dispersion patterns of waders on the east Atlantic seaboard, and their significance was evaluated in the light of …
-
The moult and migration strategies of Lesser Sand Plover, Greater Sand Plover and Terek Sandpiper
… the commonly encountered long-distance migrant waders in Africa and Australasia. This is particularly true for the populations which spend the non-breeding season on the East African coast. This study aims to describe the primary moult strategies for the three species from five locations at …
-
Predicting the effect of environmental change on wading birds: insights from individual-based models.
… true changes in the system and limits the use of waders as direct bio-indicators of ecosystem health. Using the current literature, an analysis on empirical responses of wader populations to environmental change revealed the lack of comparability between studies and the scarcity of studies on …
-
The effects of recreational activities on aquatic avifauna
… in late summer are a major gathering point for waders before migratory departure. Increasing human pressure on open spaces is threatening this natural habitat of aquatic birds. For future waterbird conservation it is necessary to ascertain the impact of recreation and human disturbance in this …
-
Important bird areas in the southern part of West Iceland
… geese and swans (Anatidae) **, followed by waders, gulls and relatives. Passerine birds and raptors were present in low numbers. Most of the recorded species breed and nest in Iceland, but some passage migrants, vagrants and wintering guests were also seen. A total of 21,687 birds were seen …
-
Further studies on the breeding biology of redshank (Tringa totanus L.)
… at between 66-74%. Timing of breeding in other waders and a comparison with the related Greenshank are reviewed in the Appendices.
-
Managing wet grassland landscapes: impacts on predators and wader nest predation
… mammal prey in a landscape managed for breeding waders within lowland wet grasslands, and use these findings to consider the potential for habitat management to reduce levels of nest predation for lapwing, Vanellus vanellus, and redshank, Tringa totanus. Within these wet grasslands, I show that …
-
Ecology of the infauna of Spurn Bight mudflats : an area proposed for reclamation
… may be able to support larger numbers of waders than at present. This is discussed in relation to the proposal for land reclamation and it is concluded that even partial schemes, designed to conserve part of the resource, would lead to the destruction of the most productive areas of …
-
Impact of human disturbance on coastal birds: population consequences derived from behavioural responses
… to address these questions: using wintering waders in estuarine habitats as the study system and taking a joint fieldwork and simulation modelling approach. Fieldwork was centred on Poole Harbour; an estuary and wetland of international importance located on the south coast of the UK. …
-
The Impacts of Corvids on Biodiversity
… were the most frequently studied, followed by waders. Collating the results from both experimental and correlative studies revealed a negative impact for 29% (n=50) of cases, whereas no impact was detected in 63% (n=107) of cases, and I found a positive impact (suggesting a beneficial …
-
The feeding ecology of curlew sandpipers "Calidris Ferruginea" in the South-Western Cape, South Africa
… of resource partitioning among Palaearctic waders on the one hand and resident species on the other in southern Africa. This dissertation attempts to contribute information useful in understanding the trophic relationships within a marine lagoon ecosystem in the south-western Cape, South …
-
Peatland Afforestation: Effects and Restoration
… table enabled faster colonisation of sensitive waders such as Dunlin and Golden Plover, although densities remain lower than in intact bogs. Occupancy modelling demonstrated persistent edge effects from adjacent forestry, hindering wader recovery decades after planting. Strategic removal or …