Management of Conflict Species (Management n control (m.options (Exclusion…
Management of Conflict Species
exceeding the usual bounds of something
population census, damage to habitat, conflicting with other species, etc.
facts/observe support assertion
supported by scientific data
Identify the courses
caused by declined of predator that prey on this species
changes in environment due to development
:star:American White-tailed Deer
:explode:alien species which becomes established in natural or semi-natural ecosystems or habitat, is an agent of change, and threatens native biological diversity.
:warning:Can cause widespread ecological and economical damage.
:warning:Displace or eliminate native species.
:warning:Economic costs – damages to crops, cost of eradication
how they arrived?
(1) European colonization — released many European species.
(2) Horticulture and agriculture
(3) Accidental transport/escape.
Population expansion (exploded) because there is no native predator to control them.
Act of man
Globalisation and international trade
: :pen: Flora, fauna /patogens
: :pen:Cane Toad Bufo marinus) in Australia
:pen:Brown Tree Snake (Boiga irregularis) in many of the Pacific islands (e.g. Hawaii, Guam)
Pathway of Exotic sp.
-plant for agricultural purpose
-Animal released for hunting purpose
Introduction to captivity
-Escaped animals from zoos
Seed and invertebrate from nursery plants
Organism in timber
Soil inhabiting species
Travelers - tourist
Disease in animals traded
more applicable to wildlife or animals that chose to stay or roost in buildings within the park.
:green_cross:When conflict with human. Doesn’t matter is human invaded their territory or vice versa.
:green_cross: Can be feral animals
Management n control
choose sp. remove requires carefull evaluation of impact
Few simple rules:
(1) Assess the situation;
(2) Choose management option;
(3) Do it (tools and techniques);
(4) Prevent occurrence;
(5) Evaluate outcome.
Mechanical Control (Exclusion (e.g. fencing, exclude wildlife with physical barrier)
Chemical Control (Repellents)
Pathogen to control plant and animal species
Removal n lethal option
Control exo. sp.
-Find the cheapest, most effective, and most preferred option.
-Rapid intervention/prevention. No need to wait for study.
-Vulnerable or sensitive ecosystems given highest priority.
-Intentional introduction is granted, if and only if, the positive effects outweigh the potential negative impacts (e.g. fish in aquaculture).
-Aims to completely remove the exotic species.
-Best opportunity for eradication is in its early stage when the population is small and localised.
-Should be done only if the sources of introduction/problem can be contained.