67 research outputs found
GenoDive version 3.0: Easy-to-use software for the analysis of genetic data of diploids and polyploids
Repeated unidirectional introgression towards Populus balsamifera in contact zones of exotic and native poplars
The Ecology and Management of Urban Pondscapes
<p>Small water bodies provide valuable ‘blue space’ in urban environments, creating a network of
semi-natural habitat patches for wildlife as well as providing a wide range of
ecosystem services. However, the diverse
and interacting anthropogenic stressors imposed by the urban environment pose
considerable challenges for the effective management of these habitats. We outline some of the key factors that appear to
influence urban pond biodiversity: land use with the local (and often
small-scale) catchment, the connectivity of ponds through the landscape, and
the nature of emergent and riparian vegetation. We argue that all three factors
can be incorporated into a landscape-scale planning framework that can target
particular areas for creation and amelioration of pond habitats. Such a joined-up approach is currently
lacking from most urban planning frameworks, but could provide an opportunity
to maximise services provided by urban wetlands at the landscape scale. We emphasise the application of recent
ecological advances in our understanding of urban ponds to management
guidelines, which have largely come in the form of gardening guides. This
management will be required not only to enhance the biodiversity value of urban
ponds, but also to control the less desirable elements of aquatic biodiversity
such as invasive species and disease vectors that may pose a particular risk in
urban environments. Finally, we note the
lack of a comprehensive conservation strategy for ponds and highlight key
legislation and guidance that can help to fill the gap. The fact that pond
value lies in the aggregation of multiple habitats distributed through the
landscape challenges our existing approach to habitat protection. However,
contemporary approaches to pond creation for mitigation through planning
processes and programmes of pond creation provide an opportunity to implement
truly large-scale strategic habitat management. It is imperative that ecologists and conservationists are
involved in the future planning process and its implementation.</p
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