Karen McKee, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 70
Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest
Mangrove forests are characterized by distinctive tree-height gradients that reflect complex spatial, within-stand differences in environmental factors, including nutrient dynamics, salinity, and tidal inundation, across narrow gradients. To determine patterns of nutrient limitation and the effects of nutrient availability on plant growth and within-stand nutrient dynamics, we used a...
Authors
Ilka C. Feller, K.L. McKee, D.F. Whigham, J.P. O’Neill
Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida
The objectives of this study were to determine effects of nutrient enrichment on plant growth, nutrient dynamics, and photosynthesis in a disturbed mangrove forest in an abandoned mosquito impoundment in Florida. Impounding altered the hydrology and soil chemistry of the site. In 1997, we established a factorial experiment along a tree-height gradient with three zones, i.e., fringe...
Authors
Ilka C. Feller, D.F. Whigham, K.L. McKee, C. E. Lovelock
Hurricane Mitch: effects on mangrove soil characteristics and root contributions to soil stabilization Hurricane Mitch: effects on mangrove soil characteristics and root contributions to soil stabilization
No abstract available.
Authors
Karen L. McKee, Thomas E. McGinnis
Interactive effects of redox intensity and phosphate availability on growth and nutrient relations of Cladium jamaicense (Cyperaceae) Interactive effects of redox intensity and phosphate availability on growth and nutrient relations of Cladium jamaicense (Cyperaceae)
Expansion of Typha domingensis into areas previously dominated by Cladium jamaicensein the Florida Everglades has been linked to anthropogenic phosphorus (P) enrichment and increased hydroperiod. The principal stress factor for plants in flooded soils is biochemical reduction, the intensity of which is measured as redox potential (Eh). The objective of this study was to assess the growth...
Authors
J. Lissner, I.A. Mendelssohn, B. Lorenzen, H. Brix, K.L. McKee, S.L. Miao
Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch
We measured sediment elevation and accretion dynamics in mangrove forests on the islands of Guanaja and Roatan, Honduras, impacted by Hurricane Mitch in 1998 to determine if collapse of underlying peat was occurring as a result of mass tree mortality. Little is known about the balance between production and decomposition of soil organic matter in the maintenance of sediment elevation of...
Authors
Donald R. Cahoon, P. Hensel, J. Rybczyk, K.L. McKee, C.E. Proffitt, B.C. Perez
Mangrove isotopic (δ15N and δ13C) fractionation across a nitrogen vs. phosphorus limitation gradient Mangrove isotopic (δ15N and δ13C) fractionation across a nitrogen vs. phosphorus limitation gradient
Mangrove islands in Belize are characterized by a unique switching from nitrogen (N) to phosphorus (P) limitation to tree growth from shoreline to interior. Fertilization has previously shown that Rhizophora mangle (red mangrove) fringe trees (5–6 m tall) growing along the shoreline are N limited; dwarf trees (≤ 1.5 m tall) in the forest interior are P limited; and transition trees (2–4...
Authors
Karen L. McKee, Ilka C. Feller, Marianne Popp, Wolfgang Wanek
Science and Products
Filter Total Items: 70
Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest
Mangrove forests are characterized by distinctive tree-height gradients that reflect complex spatial, within-stand differences in environmental factors, including nutrient dynamics, salinity, and tidal inundation, across narrow gradients. To determine patterns of nutrient limitation and the effects of nutrient availability on plant growth and within-stand nutrient dynamics, we used a...
Authors
Ilka C. Feller, K.L. McKee, D.F. Whigham, J.P. O’Neill
Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida Nitrogen limitation of growth and nutrient dynamics in a disturbed mangrove forest, Indian River Lagoon, Florida
The objectives of this study were to determine effects of nutrient enrichment on plant growth, nutrient dynamics, and photosynthesis in a disturbed mangrove forest in an abandoned mosquito impoundment in Florida. Impounding altered the hydrology and soil chemistry of the site. In 1997, we established a factorial experiment along a tree-height gradient with three zones, i.e., fringe...
Authors
Ilka C. Feller, D.F. Whigham, K.L. McKee, C. E. Lovelock
Hurricane Mitch: effects on mangrove soil characteristics and root contributions to soil stabilization Hurricane Mitch: effects on mangrove soil characteristics and root contributions to soil stabilization
No abstract available.
Authors
Karen L. McKee, Thomas E. McGinnis
Interactive effects of redox intensity and phosphate availability on growth and nutrient relations of Cladium jamaicense (Cyperaceae) Interactive effects of redox intensity and phosphate availability on growth and nutrient relations of Cladium jamaicense (Cyperaceae)
Expansion of Typha domingensis into areas previously dominated by Cladium jamaicensein the Florida Everglades has been linked to anthropogenic phosphorus (P) enrichment and increased hydroperiod. The principal stress factor for plants in flooded soils is biochemical reduction, the intensity of which is measured as redox potential (Eh). The objective of this study was to assess the growth...
Authors
J. Lissner, I.A. Mendelssohn, B. Lorenzen, H. Brix, K.L. McKee, S.L. Miao
Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch Mass tree mortality leads to mangrove peat collapse at Bay Islands, Honduras after Hurricane Mitch
We measured sediment elevation and accretion dynamics in mangrove forests on the islands of Guanaja and Roatan, Honduras, impacted by Hurricane Mitch in 1998 to determine if collapse of underlying peat was occurring as a result of mass tree mortality. Little is known about the balance between production and decomposition of soil organic matter in the maintenance of sediment elevation of...
Authors
Donald R. Cahoon, P. Hensel, J. Rybczyk, K.L. McKee, C.E. Proffitt, B.C. Perez
Mangrove isotopic (δ15N and δ13C) fractionation across a nitrogen vs. phosphorus limitation gradient Mangrove isotopic (δ15N and δ13C) fractionation across a nitrogen vs. phosphorus limitation gradient
Mangrove islands in Belize are characterized by a unique switching from nitrogen (N) to phosphorus (P) limitation to tree growth from shoreline to interior. Fertilization has previously shown that Rhizophora mangle (red mangrove) fringe trees (5–6 m tall) growing along the shoreline are N limited; dwarf trees (≤ 1.5 m tall) in the forest interior are P limited; and transition trees (2–4...
Authors
Karen L. McKee, Ilka C. Feller, Marianne Popp, Wolfgang Wanek