9 - Habitat loss and fragmentation

1 m940 bio 3115 universit dottawa university of

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Unformatted text preview: degradation (on-site) Drainage for agriculture and forestry dredging and channelization for navigation and flood protection filling for commercial or residential development contaminant loading construction of dams, dikes, levees etc. M9.41 BIO 3115 Université d’Ottawa / University of Ottawa 2012 Anthropogenic causes of wetland loss or degradation (off-site) off- site groundwater extraction (e.g. wells) sediment diversion by upstream dams, channels, etc. disruption of hydrological regime by upstream roads, canals, etc. M9.42 BIO 3115 Université d’Ottawa / University of Ottawa 2012 M9.21 BIO 3115 Conservation Biology 2009-2010 The effect of paved roads on wetland plant and herptile richness 0.6 Herptile species richness Area-corrected plant species richness 0.3 0.2 0.0 0.0 -0.1 -0.2 0.4 0.2 0.0 -0.2 -0.4 -0.3 -4 -2 0 2 4 -4 -2 0 2 4 Area-corrected paved road density (1000 m/2000 m) M9.43 BIO 3115 Université d’Ottawa / University of Ottawa 2012 The effect of forest cover removal on wetland mammal and herptile richness 0.6 Mammal species richness Area-corrected h...
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