Sentence examples for construction of obstacles from inspiring English sources

Breeding in this species does not involve travelling downstream; nonetheless, populations may be affected by the construction of obstacles along rivers they inhabit.

Anthropogenic sources of decreased habitat complexity and construction of obstacles preventing spawning migrations to correct breeding sites (such as reservoirs and dams) might also increase the chances of hybridization.

To expand the suitable shelter area with low TDG supersaturation levels in order to provide a suitable shelter for fish, some engineering measures were explored, including the excavation of the riverbed and the construction of resistance obstacles.

The causes of different levels of introgression among river basins are unknown but might be related to either differing degrees of anthropogenic disturbance, mainly the construction of migration obstacles such dams and weirs [ 20, 21], and/or innate differences relating to behavior or genetic composition.

Rommel reported after an inspection tour in April 1944 that "The construction of anti-paratroop obstacles has made great progress in many divisions.

Despite the operational and maintenance obstacles, construction of the pump enabled Boyle to conduct a great many experiments on the properties of air, which he later detailed in his New Experiments Physico-Mechanicall, Touching the Spring of the Air, and its Effects (Made, for the Most Part, in a New Pneumatical Engine).

It calls on federal officials to help clear obstacles to construction of an oil pipeline from Azerbaijan to the Mediterranean.

One of the last obstacles to construction of the freeway was a wetlands area near Southfield.

Rocks, forests, lakes, muskeg, and insects served as major obstacles during construction of the 100 km highway, which progressed from both ends.

Canal engineer Canvass White solved one of the construction obstacles when he discovered how to create a cement that hardened underwater.

The decision clears another obstacle to construction of an Indian casino in the Catskills, which many residents hope will revive the area's resort economy.