Classification and ordination of cryptogamic communities in Wilkes Land, Continental Antarctica

first_imgThe entirely cryptogamic vegetation of Bailey and Clark Peninsulas, Windmill Islands, Budd Coast, Wilkes Land, Antarctica, is described for the first time. The vegetation of this area is exceptionally well developed and diverse and represents one of the most important botanical sites on the continent. The macroflora comprises three species of moss, one liverwort, three fruticose lichens, four foliose and over 20 crustose lichens; several macroalgae also occur. Seventy stands of relatively homogeneous vegetation were analysed and the percentage cover afforded by every species within 20 quadrats per site was recorded. A subjective classification was developed by visual ordering of the data sets and a hierarchical system erected which incorporates one moss- and one lichen-dominated sub-formation; the former includes two associations and seven sociations, while the latter comprises one association which includes four sociations. The data were then arranged by centroid linkage analysis to produce an objective classification, and subsequently ordinated by principal components analysis to generate groups of stands, the inter-relations of which were interpreted in ecological and environmental terms. The objective classification and ordination strongly support the subjectively derived groupings or sociations. Examples of plant interactions are qualitatively described.last_img read more

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Riverhead Home Invasion Shooting Probed

first_imgSign up for our COVID-19 newsletter to stay up-to-date on the latest coronavirus news throughout New York Two masked gunmen shot up a house with five people inside in Riverhead where the duo had committed a home invasion on Tuesday night, authorities said.Two adults and three children—including two boys ages 15 and 12 and a 5-year-old girl—were in the East Avenue home when the gunmen broke in at 11:29 p.m., Riverhead Town Police said.The victims called 911 after the suspects fled and started shooting at the house. None of the residents were hit by the gunfire.The case marks the 12th armed home invasion in Suffolk in a six-week span starting Jan. 15. Two other cases involved shootings, including a Flanders home invasion that left a man dead and a Central Islip home invasion that left a shooting victim wounded.Investigators found shell casings outside the house. Detectives are continuing the investigation.last_img read more

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