气候变化领域集成服务门户(CCPortal): Late-Holocene stability and recent changes in small mammal communities in north-central Andean forests of Patagonia

CCPortal

DOI	10.1177/09596836241231435
	Late-Holocene stability and recent changes in small mammal communities in north-central Andean forests of Patagonia
	Andrade, Analia; Teta, Pablo; Fernandez, Mercedes Grisel; Fernandez, Pablo Marcelo
发表日期	2024
ISSN	0959-6836
EISSN	1477-0911
起始页码	34
结束页码	6
卷号	34 期号:6
英文摘要	Past and current climatic and environmental changes have contributed to configure actual species distributions and abundances. Knowing their evolution over time allows discrimination between natural and anthropogenic causes in current composition of faunal communities. We evaluate the changes in small mammal assemblages from the north-central Patagonian Andean forests since the Late-Holocene to recent times and their relationship with the environmental modifications driven by human activities. A bone sequence from Poblaci & oacute;n Anticura archaeological site (lower Manso river valley, R & iacute;o Negro province, Argentina) was studied, which encompasses a time span from the early Late-Holocene (3350 +/- 100-2270 +/- 80 years BP) to final Late-Holocene (1420 +/- 70-530 +/- 50 years BP) and Historical times (480 +/- 70-280 +/- 40 years BP). The species composition indicates that forest environment established in the area from at least the Late-Holocene (dominance of Loxodontomys micropus, with subordinate frequencies of Abrothrix olivacea, A. hirta, Geoxus valdivianus, Irenomys tarsalis, and Paynomys macronyx), with patches of (or near to) open environments (presence of Reithrodon auritus and cavids). It is remarkable the presence of cavids, which increased their abundance in the sequence towards Historical times but disappeared nowadays. The low frequencies (<10%) of the rodent Oligoryzomys longicaudatus along the entire sequence is also relevant, since this rodent is the reservoir of the Andes strain of the Hantavirus (ANDV), which causes pulmonary syndrome. This mouse dominates the small mammal assemblages from forests and ecotonal shrublands of northwestern Patagonia (abundances exceed 50% in owl pellets recently collected from the study area). Current configuration of forest and ecotonal assemblages, particularly the high abundance of O. longicaudatus, should be mainly linked to anthropogenic causes, including the introduction of cattle, land clearing, and the advance of introduced plant species such as the sweet briar (Rosa eglanteria). Particularly, this exotic shrub offers shelter and additional food for O. longicaudatus, turning their shrublands into spaces of high epidemiological risk.
英文关键词	Andean forest; climate; rodents; epidemiology; Historical times; human impact; Late-Holocene; O. longicaudatus
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001173416100001
来源期刊	HOLOCENE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304476
作者单位	Museo Argentino de Ciencias Naturales Bernardino Rivadavia (MACN); University of Buenos Aires; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
推荐引用方式 GB/T 7714	Andrade, Analia,Teta, Pablo,Fernandez, Mercedes Grisel,et al. Late-Holocene stability and recent changes in small mammal communities in north-central Andean forests of Patagonia[J],2024,34(6).
APA	Andrade, Analia,Teta, Pablo,Fernandez, Mercedes Grisel,&Fernandez, Pablo Marcelo.(2024).Late-Holocene stability and recent changes in small mammal communities in north-central Andean forests of Patagonia.HOLOCENE,34(6).
MLA	Andrade, Analia,et al."Late-Holocene stability and recent changes in small mammal communities in north-central Andean forests of Patagonia".HOLOCENE 34.6(2024).