Olivia Crowe

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Climate change is predicted to cause changes in species distributions and several studies report margin range shifts in some species. However, the reported changes rarely concern a species' entire distribution and are not always linked to climate change. Here, we demonstrate strong north-eastwards shifts in the centres of gravity of the entire wintering(More)
Global climate change is a major threat to biodiversity. Large-scale analyses have generally focused on the impacts of climate change on the geographic ranges of species and on phenology, the timing of ecological phenomena. We used long-term monitoring of the abundance of breeding birds across Europe and the United States to produce, for both regions,(More)
Citizen science is proving to be an effective tool in tracking the rapid pace at which our environment is changing over large geographic areas. It is becoming increasingly popular, in places such as North America and some European countries, to engage members of the general public and school pupils in the collection of scientific data to support long-term(More)
The importance of Ireland’s wetlands for waterbirds is well documented (Crowe 2005, Boland & Crowe 2012), and the most recent population estimates indicate that more than one million wildfowl and waders winter in Ireland (Crowe et al. 2008). The Wetland Bird Survey (WeBS) in Northern Ireland and Britain, together with the equivalent scheme in the Republic(More)
Ireland is characterised by its diversity and large abundance of wetlands, making it attractive to a wide variety of waterbirds throughout the year. This paper presents an overview of Ireland's waterbirds, including ecological factors relevant to the potential introduction, maintenance, transmission and spread of infectious agents, including the H5N1 avian(More)
Ireland supports a high diversity and large numbers of high latitude-nesting waterfowl during the non-breeding season. Located at the southern edge of the major flyways of many species, its mild climate ensures that feeding is rarely interrupted by freezing conditions. Some species migrate here, while others use Ireland as a stopover site, while en route to(More)
The seventh international census of Whooper Swans in Britain, Ireland, Iceland and the Isle of Man took place in January 2015, to update estimates of the size and midwinter distribution of the Icelandic Whooper Swan population. The 34,004 swans recorded represented a 16% increase in numbers compared to the previous census in 2010, a 155% increase on counts(More)
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