The road effect on small rodent population is investigated at 8 fragmented forest areas in the Baekdudaegan mountain range, South Korea in September 2001. We especially focused on the distribution and body condition o...The road effect on small rodent population is investigated at 8 fragmented forest areas in the Baekdudaegan mountain range, South Korea in September 2001. We especially focused on the distribution and body condition of small rodents near the roads. Korean field mouse (Apodemus peninsulae) seems to be more sensitive to the existence of a road than striped field mouse (Apodemus agrarius). Korean field mouse prefers interior forest area to around road. Striped field mouse is a habitat generalist and has wide distributional range around road, but Korean field mouse is forest-inhabiting species and their distribution is limited in forest area. These results suggest the effect of road is different on each small rodent species and their habitat preferences.展开更多
美国的西橡树林(Western oak Woodland)已经被当地的橡实啄木鸟群分割成了竞争激烈的不同片区,每个小片区内它们都需要守护保存了成千上万颗橡果的“橡树粮仓”。这些啄木鸟会成群筑巢,相互协作养育雏鸟。不过,对于居住在“橡树粮仓”...美国的西橡树林(Western oak Woodland)已经被当地的橡实啄木鸟群分割成了竞争激烈的不同片区,每个小片区内它们都需要守护保存了成千上万颗橡果的“橡树粮仓”。这些啄木鸟会成群筑巢,相互协作养育雏鸟。不过,对于居住在“橡树粮仓”的啄木鸟而言,如果其中一只正在哺育雏鸟的啄木鸟死去后,处于竞争关系又没有哺育雏鸟的啄木鸟就会从周围赶来,抢占这个位置。这场不时会致命的争斗常常会持续好几天。科学家已经研究这种小型冲突50多年了,但他们最近才意识到,其他啄木鸟也十分渴望观察这场冲突。展开更多
文摘The road effect on small rodent population is investigated at 8 fragmented forest areas in the Baekdudaegan mountain range, South Korea in September 2001. We especially focused on the distribution and body condition of small rodents near the roads. Korean field mouse (Apodemus peninsulae) seems to be more sensitive to the existence of a road than striped field mouse (Apodemus agrarius). Korean field mouse prefers interior forest area to around road. Striped field mouse is a habitat generalist and has wide distributional range around road, but Korean field mouse is forest-inhabiting species and their distribution is limited in forest area. These results suggest the effect of road is different on each small rodent species and their habitat preferences.
文摘美国的西橡树林(Western oak Woodland)已经被当地的橡实啄木鸟群分割成了竞争激烈的不同片区,每个小片区内它们都需要守护保存了成千上万颗橡果的“橡树粮仓”。这些啄木鸟会成群筑巢,相互协作养育雏鸟。不过,对于居住在“橡树粮仓”的啄木鸟而言,如果其中一只正在哺育雏鸟的啄木鸟死去后,处于竞争关系又没有哺育雏鸟的啄木鸟就会从周围赶来,抢占这个位置。这场不时会致命的争斗常常会持续好几天。科学家已经研究这种小型冲突50多年了,但他们最近才意识到,其他啄木鸟也十分渴望观察这场冲突。