Ecology Flashcards
Millenium ecosystem assessment
60% worlds ecosystem are being degraded or used unsustainably
Decline of indicator species
bird population indices
farmland birds
woodland birds
seabirds declined (1970 to 2012)
EIAs role
help conserve species and threatened habitats from development
doesn’t address large-scale land use changes, pre-existing development and introduced species, climate change
Fauna and flora clearly written in to EIA law
EcIA
scoping- incl consultation widest poss input for determin scope
identification of expected zone of influence
determination and evaluation of etiological resources
description of expected biophysical changes which would affect valuable ecological resources
assessment of changes if able to cause significant ecological impacts
developmetn o ecological improvement and mitigation measures for avoiding any negative impacts
assesment of ecological impacts and their significance
summing up of consequesnces for decision making
monitoring and implementation of mitigation measures and ecological outcomes
Limits of impact: quarry proposal zone of influence
ecological feature or resource within the area to be worked will be affected by changes in land cover by topsoil stripping and excavation
noise, dust and changes in human activity will also affect species in adjacent habitats
major long term deterring operations could have consequences for water dependent habitats distant from the quarry.
hydrological/hyrdrogeological modelling may be necessary
new infrastructure impacts beyond the boundaries of the site in addition to those affects by deterring.
zone of influence should include all such features that are of sufficiency value to be included in the assessment.
Desk study
information on protected area area and habitats: local authorities natural england (equivalent) EA Local wildlife trust
specific groups (birders wildflowers, bat groups, herpetologists, butterfly groups)
Spationa investigations:
OS amps, geological maps, land use maps, habitat maps, remote sensing
county resources
Protected areas- Nationsl
1940
updates 2000 countryside and rights of way act 2000- natural envy and rural communities
conservation in the UK run by nature conservancy Councils- Natural England
SSSIs
scienitific basses for selection
“national series to maintain the diversity of plants and animals in the UK”
old system (pre 2000) not very effective 45% of SSSIs in an ‘unfavourable condition’
decline more often due to neglect rather than intentional damage
SSSIs habe managemnt statement can extend to land outside the site
financial rewards for positive management
management notice can be issues in the case of failure- followed by persecution and or compulsory purchase
offence of reckless damage by 3rd parties
development not permitted w/o satisfactory mitigation agreed by natural england
ie Barnet Reservoir Welsh Harp- waterfowl and other birds incl britains largest breeding pop of great crested grebe. >40 rare species of invertebrates
National nature reserve
scientific/research basis: national importance
usually owned or managed by NCC
400+ designated sites (900 proposed by ratcliffe 1977) (
Local nature reserves
similar basis for selection to SSSIs Local importance only
usually on land owned by local authority
designated by local authorities
non statutory nature reserves
wide range of individual local authority designations
SINCs (Sites of importance for nature conservation)
Barnet 1992- wildlife habitat surveys, 1997 Nature conservation of Barnet published= 67 SINCs. 2006= unitary development plan.
ie Greenways Southampton
PROTECTED AREAS- INTERNATIONAL
Ramsar sites
Special protection areas (SPAs)
Special area of Conservation (SACs)- Natura 2000 sites- designed to safeguard the wildlife most at risk.
if impacts likely will need appropriate assessment
development possible if IROPI (imperative reasons of overriding public interest)
Ramsar
(Convention on Wetlands of international importance 1971)
covers wetlands under v broad definition
supports monitoring and conservation
general and probable unenforceable protection in the UK via national and EU laws
140 UK sites
SPAs
designated to safeguard habitats of migratory and threatened species
240 sites UK
habitat directive 1992
special area of conservation 600 sites (UK):
presence of priority habitat type or species
presence of a habitat or species which is rare in the UK
presence of diversity of listed habitats and or species
presence of a large proportion of European resource