3-22 - 3-24, protecting areas Flashcards
Considerations for designing or designating areas to preserve
Representation of biodiversity
Distinctiveness
Endangerment
Utility for ecosystem services
Economics
Redundancy
Size
Stated goals in relation to desired populations
Connectivity to other protected areas
Possible changes, notably climate, but others, too
Final product: Conservation Plan – look at all the above factors
Representation of biodiversity
Need an inventory of species and abundance
* Need an inventory of biomes
Solutions: “hotspot” identification, gap analysis
Distinctiveness
flagship or distinctive species, e.g. Komodo Dragon
Economic considerations for preservation
amount of protection per dollar cost to establish and to maintain
E.g. Children’s Eternal Rain Forest in Costa Rica– wanted first to buy land on drier Pacific
slope as that was in most need of protection. But too economically useful, therefore
expensive, so bought on Caribbean side, rain forest so not so ”useful” easier & cheaper
Hawaii Finch Gap
Analysis
Analysis of gaps using
geographic information
systems (GIS)
Whooping Cranes
Home range of the Quetzal
Dan Janzen
heroic effort to save an area truly representative of the tropical dry forest and a complete ecosystem
Jaragua
African grass imported for cattle pasture, became a major fire
hazard, preventing regeneration of the dry forest
Serengeti N. P. & other Protected Areas
shows importance of
buffer areas
Wildebeest at Mara River
efforts to reduce effects of fragmentation
Corridors, tunnels, overpasses
Benefits: allow recolonization by dispersing individuals
Counters inbreeding – needs only a few individuals
Costs: dispersal of diseases, predators, “outbreeding depression”
Golden Lion Tamarin
Mesoamerican Corridor (Path of the
Panther)
jaguar
Puma, Panther, Mountain Lion,
Catamount
Baird’s Tapir