McCleery Robert A, Foster Garry W, Lopez Roel R, Peterson Markus J, Forrester Donald J, Silvy Nova J
Department of Wildlife and Fisheries Sciences, Texas A&M University, TAMU-2258, College Station, Texas 77843-2258, USA.
J Wildl Dis. 2005 Jan;41(1):250-2. doi: 10.7589/0090-3558-41.1.250.
Numbers of the endangered Key Largo woodrat (KLWR; Neotoma floridana smalli) have been declining for at least 25 yr. The raccoon (Procyon lotor) roundworm, Baylisascaris procyonis, has been found to have an adverse effect on the survival of Alleghany woodrats (N. magister). High densities of raccoons can exacerbate this problem by increasing the amount of feces containing viable eggs of B. procyonis available to woodrats. In 2002, 64 fecal samples were collected and examined for eggs of B. procyonis from >32 raccoons within the KLWR's known range on Key Largo, Florida, USA. All samples were negative for eggs of B. procyonis. Raccoon density in this area was approximately 0.62 raccoons/ha. Despite this high density of raccoons, B. procyonis does not appear to be a threat to the KLWR population.
濒危的基拉戈林鼠（KLWR；佛罗里达林鼠小种，Neotoma floridana smalli）数量至少25年来一直在下降。浣熊（北美浣熊，Procyon lotor）体内的蛔虫——貍蛔线虫（Baylisascaris procyonis），已被发现会对阿勒格尼林鼠（N. magister）的生存产生不利影响。浣熊的高密度会加剧这一问题，因为这会增加可供林鼠获取的含有貍蛔线虫活卵粪便的数量。2002年，在美国佛罗里达州基拉戈，在基拉戈林鼠已知分布范围内采集了64份粪便样本，并对来自32只以上浣熊的样本进行了貍蛔线虫卵检测。所有样本的貍蛔线虫卵检测均为阴性。该地区浣熊密度约为0.62只/公顷。尽管浣熊密度很高，但貍蛔线虫似乎并未对基拉戈林鼠种群构成威胁。
