Sentences with phrase «separate breeding populations»

Not exact matches

Snell says incubators and other equipment are desperately needed, including new corrals for juveniles to maintain separate populations of the different subspecies being bred.

Because the earth people and the moon people would be two independent breeding populations, they could be classified by evolutionists as two separate species.

As previous population estimates did not take account of 16 of the 46 colonies (see Figure 3), and many previous counts were of poor quality and widely separated in time [11], [12], [23] these historical estimates can not be considered representative of the total breeding population of emperor penguins (previous counts are given for comparison in Table 1).

Salmon populations are distinct in freshwater, where fish hatch and rear, then combine in the ocean before separating again when adult salmon return to rivers to breed.

This move effectively separated the two populations, and with different ideas of where the breed should go, the Americans and the Japanese widened the gap between their Akita populations.