Between may and august is the breeding season for crabs 五月到八月间是螃蟹的繁殖季节。
The condition factor of g . przewalskii decreased in reproduction seasons 青海湖裸鲤在繁殖季节,丰满度下降。
Some 240 nests were built during the breeding season but complete data were available from only 119 of these 大约240个雀巢是在繁殖季节修筑的,但只获得了其中119个完整的资料。
The intense competitive pressure means that individuals who succeed put all their efforts into one or two breeding seasons 巨大的竞争压力意味着获得交配机会的动物会在两个繁殖季节中极尽全力。
Because the season comes when they have to make ready the nest for their offspring . that is a spontaneous , natural reaction of the birds 因为当繁殖季节来临时,鸟儿必须为下一代筑好窝巢,这是它们的自然反应。
During their breeding season , the turtles migrate from their feeding ground to mate in shallow waters off their nesting beaches 在夏天的繁殖季节,成长的海龟会从它们觅食的水域游回到其出生地附近的浅海区交配。
A male animal that does not mate during the breeding season , especially a young male fur seal kept from the breeding territory by older males 尚未交配的小雄兽在繁殖季节中未交配的雄性动物,特别指被较年长的雄性拒于交配领地之外的年轻的雄性海豹
On the other hand , vessels should avoid entering the sea inlet of sham wan during sea turtle breeding season so as to minimise any potential disturbance to the sea turtles 此外,在海龟的繁殖季节,应避免将船只驶进深湾的内湾,以减少对海龟可能造成的滋扰。
Green turtles are an endangered species . during the breeding season this year , one of the mother turtles spent more than two months in hong kong and nested seven times 绿海龟是濒危物种,在今年繁殖季节期间,其中一只母龟在留港的两个多月内,曾七度上岸产卵。
They found that , over the course of the breeding season , deserting the nest once eggs had been laid boosted the number of descendants produced by the bird that fled 鸟类学家们研究发现,在整个繁殖季节的过程中,雀蛋一产下就弃巢而去的行为提高了这些遗弃巢穴的山雀的产雏量。