科學(xué)60秒:家貓其實(shí)也很野
來(lái)源:滬江聽(tīng)寫酷
2011-08-17 10:00
Lions ___1___ the savannah are a staple of nature documentaries. But the millions of little lions that live in our homes and neighborhoods also lead fascinating lives. We know more about those lives now, because a two-year-long study used radio-transmitters to track cats at the southern edge of the cities of Champaign and Urbana in Illinois. ___2___. The study is in the Journal of Wildlife Management. [Jeff Horn et al., "Home Range, Habitat Use, and Activity Patterns of Free-Roaming Domestic Cats"]
The entire kittie cohort included both housecats and feral cats, and ranged over almost 6,300 acres. One feral cat’s range ___3___ 1,351 acres. New York’s Central Park covers 843 acres.
Owned cats with homes roamed way less than their feral counterparts. But they still ___4___ just under five acres. The pets were highly active just 3 percent of the time, compared with 14 percent for the cats that need to find their own food. The work should ___5___ protecting species that the cats hunt, and inform the efforts to stop the spread of feline contagious diseases.
【視聽(tīng)版科學(xué)小組榮譽(yù)出品】
The entire kittie cohort included both housecats and feral cats, and ranged over almost 6,300 acres. One feral cat’s range ___3___ 1,351 acres. New York’s Central Park covers 843 acres.
Owned cats with homes roamed way less than their feral counterparts. But they still ___4___ just under five acres. The pets were highly active just 3 percent of the time, compared with 14 percent for the cats that need to find their own food. The work should ___5___ protecting species that the cats hunt, and inform the efforts to stop the spread of feline contagious diseases.
【視聽(tīng)版科學(xué)小組榮譽(yù)出品】
roaming
It would have taken a dozen field researchers to collect the same data.
topped out at
averaged a range of
shed light on
熱帶叢林里的獅子無(wú)疑是自然紀(jì)實(shí)的主要觀察對(duì)象,但左鄰右舍成千上萬(wàn)的小貓咪也有豐富多彩的生活。研究人員耗時(shí)兩年,利用無(wú)線電發(fā)射機(jī)追蹤伊利諾伊州的尚佩恩和厄本那南端的貓科動(dòng)物。如果不是無(wú)線電發(fā)射機(jī),要獲取同樣的數(shù)據(jù)大概得耗費(fèi)眾多研究人員的時(shí)間和精力了。這項(xiàng)研究成果刊登在《野生動(dòng)物管理》雜志上。
整個(gè)研究對(duì)象包括家貓和野外生存的貓科動(dòng)物,范圍覆蓋約6300英畝。一只野生貓科動(dòng)物的活動(dòng)范圍最大可達(dá)1351英畝,而紐約中央公園也只占地843英畝…(果然很野。。。)
家貓的活動(dòng)范圍就小的多了,不過(guò)平均下來(lái)也有5英畝。家貓高度活躍的時(shí)間只有3%,而需要自行覓食的野生貓科動(dòng)物則有14%的時(shí)間是保持高度興奮狀態(tài)的。因此,人們也該意識(shí)到保護(hù)貓科動(dòng)物的獵食對(duì)象的重要性并采取行動(dòng)防止貓科動(dòng)物接觸性傳染病的傳播。