Recent research has emphasized the importance of riparian ecosystems as centers of biodiversity a... more Recent research has emphasized the importance of riparian ecosystems as centers of biodiversity and links between terrestrial and aquatic systems. Riparian ecosystems also belong among the environments that are most disturbed by humans and are in need of restoration to maintain biodiversity and ecological integrity. To facilitate the completion of this task, researchers have an important function to communicate their knowledge to policy-makers and managers. This article presents some fundamental qualities of riparian systems, articulated as three basic principles. The basic
The term ''keystone species'' is used to describe organisms that exert a disp... more The term ''keystone species'' is used to describe organisms that exert a disproportionately impor-tant influence on the ecosystems in which they live. Analogous concepts such as ''keystone mutualism'' and ''mobile links'' illustrate how, in many cases, the interactions of two or ...
Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rive... more Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they spawn. Isotopic analyses of riparian vegetation in a boreal Alaskan watershed indicate that trees and shrubs near spawning streams derive ~24-26% of their foliar nitrogen (N) from salmon. Basal area growth of white spruce (Picea glauca) is enhanced at sites receiving MDN inputs. This marine
Canadian Journal of Fisheries and Aquatic Sciences, 1998
Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) river... more Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) rivers Scott R. Elliott, Treva A. Coe, James M. Helfield, and Robert J. Naiman Abstract: Rivers and streams occupied by anadromous Atlantic ...
Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rive... more Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they spawn. Isotopic analyses of riparian vegetation in a boreal Alaskan watershed indicate that trees and shrubs near spawning streams derive ~24-26% of their foliar nitrogen (N) from salmon. Basal area growth of white spruce (Picea glauca) is enhanced at sites receiving MDN inputs. This marine N subsidy appears to be less important to riparian ecosystems where symbiotic N fixation by alder (Alnus crispa) is prevalent, although salmon carcasses may nonetheless be an important source of other marine-derived nutrients affecting productivity in these forests. These findings illustrate the complexity of interactions surrounding riparian forests and the interconnectedness of river and riparian ecosystems.
Canadian Journal of Fisheries and Aquatic Sciences, 1998
Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) river... more Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) rivers Scott R. Elliott, Treva A. Coe, James M. Helfield, and Robert J. Naiman Abstract: Rivers and streams occupied by anadromous Atlantic ...
Abstract.,Anadromous,Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) t... more Abstract.,Anadromous,Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they reproduce. Isotopic analyses indicate that trees and shrubs near spawning,streams derive approximately 22 - 24% of their foliar nitrogen (N) from spawning salmon. As a consequence of this nutrient subsidy, growth rates are significantly increased in Sitka spruce (Picea sitchensis) near spawning,streams. As riparian forests affect
... to 1920 is relatively high in the Indian River, but relatively low in the Kadashan River. ...... more ... to 1920 is relatively high in the Indian River, but relatively low in the Kadashan River. ... system-level differences in annual abundance such as this may be results of debris flows that ... dendrochemical measures such as the per mil deviation in 15 N abundance from atmospheric ...
Recent research has emphasized the importance of riparian ecosystems as centers of biodiversity a... more Recent research has emphasized the importance of riparian ecosystems as centers of biodiversity and links between terrestrial and aquatic systems. Riparian ecosystems also belong among the environments that are most disturbed by humans and are in need of restoration to maintain biodiversity and ecological integrity. To facilitate the completion of this task, researchers have an important function to communicate their knowledge to policy-makers and managers. This article presents some fundamental qualities of riparian systems, articulated as three basic principles. The basic
The term ''keystone species'' is used to describe organisms that exert a disp... more The term ''keystone species'' is used to describe organisms that exert a disproportionately impor-tant influence on the ecosystems in which they live. Analogous concepts such as ''keystone mutualism'' and ''mobile links'' illustrate how, in many cases, the interactions of two or ...
Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rive... more Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they spawn. Isotopic analyses of riparian vegetation in a boreal Alaskan watershed indicate that trees and shrubs near spawning streams derive ~24-26% of their foliar nitrogen (N) from salmon. Basal area growth of white spruce (Picea glauca) is enhanced at sites receiving MDN inputs. This marine
Canadian Journal of Fisheries and Aquatic Sciences, 1998
Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) river... more Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) rivers Scott R. Elliott, Treva A. Coe, James M. Helfield, and Robert J. Naiman Abstract: Rivers and streams occupied by anadromous Atlantic ...
Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rive... more Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they spawn. Isotopic analyses of riparian vegetation in a boreal Alaskan watershed indicate that trees and shrubs near spawning streams derive ~24-26% of their foliar nitrogen (N) from salmon. Basal area growth of white spruce (Picea glauca) is enhanced at sites receiving MDN inputs. This marine N subsidy appears to be less important to riparian ecosystems where symbiotic N fixation by alder (Alnus crispa) is prevalent, although salmon carcasses may nonetheless be an important source of other marine-derived nutrients affecting productivity in these forests. These findings illustrate the complexity of interactions surrounding riparian forests and the interconnectedness of river and riparian ecosystems.
Canadian Journal of Fisheries and Aquatic Sciences, 1998
Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) river... more Page 1. Spatial variation in environmental characteristics of Atlantic salmon (Salmo salar) rivers Scott R. Elliott, Treva A. Coe, James M. Helfield, and Robert J. Naiman Abstract: Rivers and streams occupied by anadromous Atlantic ...
Abstract.,Anadromous,Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) t... more Abstract.,Anadromous,Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they reproduce. Isotopic analyses indicate that trees and shrubs near spawning,streams derive approximately 22 - 24% of their foliar nitrogen (N) from spawning salmon. As a consequence of this nutrient subsidy, growth rates are significantly increased in Sitka spruce (Picea sitchensis) near spawning,streams. As riparian forests affect
... to 1920 is relatively high in the Indian River, but relatively low in the Kadashan River. ...... more ... to 1920 is relatively high in the Indian River, but relatively low in the Kadashan River. ... system-level differences in annual abundance such as this may be results of debris flows that ... dendrochemical measures such as the per mil deviation in 15 N abundance from atmospheric ...
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