Cycling of Phosphatase Hydrolyzable Phosphorus in Streams

1991 ◽  
Vol 48 (8) ◽  
pp. 1460-1467 ◽  
Author(s):  
R. L. Klotz
Keyword(s):  
New York ◽  
New York State ◽  
Soluble Reactive Phosphorus ◽  
Aquatic Organisms ◽  
Coarse Grained ◽  
Relative Importance ◽  
Phosphorus Fraction ◽  
Fine Grained ◽  
Central New York ◽  
Reactive Phosphorus

The phosphorus fraction made available to organisms by the action of alkaline phosphatase, here termed phosphatase hydrolyzable phosphorus (PHP), was studied in central New York State streams. Annual mean PHP concentrations were <2.0 μg P∙L−1 for each of the four streams studied and were low relative to concentrations for lentic systems from the literature. The PHP to soluble reactive phosphorus (SRP) ratio, a measure of the relative importance of PHP for aquatic organisms, was typically in the 0.09–1.00 range, indicating that PHP could supply a significant amount of P at certain locations. Laboratory sorption experiments with varying ionic strength solutions and with Ca2+ versus Na+ suggested that PHP was probably bound to sediments by a different mechanism than SRP, one probably mediated by the organic moiety. Fine-grained sediments higher in organic matter sorbed excess PHP from solution at a greater rate than coarse-grained sediments, but also released more into PHP-depleted solutions.

Below-the-Watertable Archaeology at Lamoka Lake

1983 ◽  
Vol 4 (2) ◽  
pp. 127-139 ◽  
Author(s):  
Richard Michael Gramly
Keyword(s):  
New York ◽  
New York State ◽  
Middle Woodland ◽  
Late Archaic ◽  
York State ◽  
Animal Bones ◽  
Central New York ◽  
Lake Site

A trench excavated into the waterlogged fringe of the Lamoka Lake site in central New York state yielded cultural stratigraphic zones with abundant artifacts and food remains. A peaty layer resting upon Late Archaic beach or streamside deposits produced late Middle Woodland (Kipp Island phase) ceramics and stone implements. Discoveries of wood, fruit pits, and nuts in the same layer as well as rich congeries of animal bones indicate that the archaeological potential of the Lamoka Lake site is not exhausted.

scholarly journals Age and origin of the Cannon Point syenite, Essex County, New York: southernmost expression of Monteregian Hills magmatism?

2017 ◽  
Vol 54 (4) ◽  
pp. 379-392
Author(s):  
David G. Bailey ◽  
Marian Lupulescu ◽  
Jeffrey Chiarenzelli ◽  
Jonathan P. Traylor
Keyword(s):  
New York ◽  
New York State ◽  
Alkali Feldspar ◽  
Crustal Material ◽  
Lake Champlain ◽  
Essex County ◽  
York State ◽  
Fine Grained ◽  
The North ◽  
Basement Faults

Two syenite sills intrude the local Paleozoic strata of eastern New York State and are exposed along the western shore of Lake Champlain. The sills are fine-grained, alkali feldspar syenites and quartz syenites, with phenocrysts of sanidine and albite. The two sills are compositionally distinct, with crossing rare earth element profiles and different incompatible element ratios, which eliminates the possibility of a simple petrogenetic relationship. Zircon extracted from the upper sill yields a U–Pb age of 131.1 ± 1.7 Ma, making the sills the youngest known igneous rocks in New York State. This age is similar to that of the earliest intrusions in the Monteregian Hills of Quebec, >100 km to the north. Sr and Nd radiogenic isotope ratios are also similar to those observed in some of the syenitic rocks of the eastern Monteregian Hills. The Cannon Point syenites have compositions typical of A-type, within-plate granitoids. They exhibit unusually high Ta and Nb concentrations, resulting in distinct trace element signatures that are similar to those of the silicic rocks of the Valles Caldera, a large, rift-related magmatic system. We suggest that the Cannon Point syenites were melts derived primarily by anatexis of old, primitive, lower crustal material in response to Mesozoic rifting and to the intrusion of mantle-derived magmas. The sills indicate that the effects of continental rifting were spatially and temporally extensive, resulting in the reactivation of basement faults in the Lake Champlain Valley hundreds of kilometers west of the active rift boundary, and crustal melting >50 Ma after the initiation of rifting.

Willow biomass trials in Central New York State

1993 ◽  
Vol 5 (2) ◽  
pp. 179-187 ◽  
Author(s):  
R.F. Kopp ◽  
E.H. White ◽  
L.P. Abrahamson ◽  
C.A. Nowak ◽  
L. Zsuffa ◽  
...  
Keyword(s):  
New York ◽  
New York State ◽  
York State ◽  
Central New York

scholarly journals Trichothecene Genotype Composition of Fusarium graminearum Not Differentiated Among Isolates from Maize Stubble, Maize Ears, Wheat Spikes, and the Atmosphere in New York

2015 ◽  
Vol 105 (5) ◽  
pp. 695-699 ◽  
Author(s):  
Paulo R. Kuhnem ◽  
Pierri Spolti ◽  
Emerson M. Del Ponte ◽  
Jaime A. Cummings ◽  
Gary C. Bergstrom
Keyword(s):  
New York ◽  
Fusarium Graminearum ◽  
New York State ◽  
Central Area ◽  
Sampling Location ◽  
Similar Frequency ◽  
Local Populations ◽  
Central New York ◽  
Genotype Composition ◽  
Maize Stubble

In order to test the hypothesis that the trichothecene genotype composition of local populations of Fusarium graminearum is structured by specific habitats, a collection of 1,407 isolates was obtained from overwintered maize stubble, mature maize ears and wheat spikes, and the atmosphere 1.5 m aboveground during the flowering stage of these crops. These isolates were sampled at three diverse agricultural locations in New York State: namely, Aurora (sampled in 2012 and 2013) in central New York, Belmont (sampled in 2013) in southwestern New York, and Willsboro (sampled in 2013) in northeastern New York. Approximately 100 isolates of F. graminearum from each habitat were collected within a 10-mile2 area in each location. Polymerase chain reaction assays were used to identify three main B-trichothecene genotypes—3-acetyldeoxynivalenol (3-ADON), 15-ADON, or nivalenol (NIV)—based on amplification of portions of Tri3 and Tri12 genes. All but the NIV genotype were detected. The 15-ADON genotype predominated in most locations; frequencies were 92% (652/709) at Aurora, 78% (332/379) at Belmont, and 53% (167/319) at Willsboro. Frequencies of any genotype did not differ in general among the four habits in each location. An exception was in Aurora 2012, where only 5 in 24 3-ADON isolates were found in samplings from the air and grains of both crops. As viewed by the composition of trichothecene genotypes, local populations of F. graminearum appear not to be structured by these four habitats inclusive of pathogenic and saprophytic phases of the fungus life cycle. The similar frequency of 3-ADON and 15-ADON in eastern New York (Willsboro), which is less than 400 km away from the Aurora sampling location in the central area of the state, suggests that regional populations may be differentiated based on selection associated with climatic or landscape features not currently identified.

Birding on Bleaker Island

2020 ◽  
pp. 222-227
Author(s):  
Rachel Dickinson
Keyword(s):  
New York ◽  
New York State ◽  
Small Island ◽  
York State ◽  
Central New York ◽  
Predatory Birds ◽  
Penguin Species

This chapter narrates the author's first island-hopping trip to Bleaker Island, wherein she hoped to see at least two penguin species, the steamer duck, and maybe a black-necked swan. There are no trees on Bleaker — which is true throughout most of the Falklands — and a large rocky hill covers about half of the small island. Because the author hails from the land of trees in central New York State, the sheer openness of the landscape felt raw and exposed. The author then describes the skuas. These are huge, predatory birds that look like ubergulls. They are the bird bullies of the islands — harassing other birds to drop their food, attacking and devouring young birds, and swooping and diving on anything they do not like, including people.

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