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Links to a Keystone Species,
Salmon and Crayfish
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
Links to a Keystone Species,
Owl and Mink
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
Links to a Keystone Species,
Bald Eagle and Salmon
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
Links to a Keystone Species,
Bald Eagles, Nest and Blue Jay
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
Links to a Keystone Species,
Heron and Warbler
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
Links to a Keystone Species,
Seagulls and Alewife
Laser cut aluminum panels, 10' wide X 5" high, mounted on fence, in Bobbie Rosenfeld Park, around the Salmon Run Fountain.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
A Keystone species is an organism that helps define biodiversity in an ecosystem. They can be microorganisms, bacteria, fungi, insects, plants or animals. Many different organisms depend on keystone species for survival – without them the ecosystem would drastically change and possibly allow invasive species to increase or take over. Keystone species are organisms that have a huge influence on food webs. Salmon are a keystone species. No other species could fill its ecological role.
Taking inspiration from the Salmon Run fountain… Karen looks into the broader environment and ecosystem of the Salmon population.
The panels of Links to a Keystone Species feature animals, birds and fish that are interconnected directly or indirectly, predator or prey of salmon, or are affected by the presence of salmon, through their link to the food web. A healthy salmon population maintains the delicate balance of the ecosystem and biodiversity.
Previously, trees and salmon had been sprayed with DDT, to kill sea lice, bud worm and other pests. Due to contamination salmon eggs stopped hatching and young salmon died early. After eating contaminated salmon, eagles were producing eggs with weak, fragile shells that failed to hatch or cracked under the parents’ weight, while incubating them. This led to a drastic decline in the Bald Eagle population. The chemical DDT, has been banned for over 30 years now.
In 2024, Toronto had its first documented occurrence of Bald Eagles nesting in the city for 100 years. Two eaglets hatched and are being raised by their parents. The Eagles Nest panel commemorates this achievement, as we learn to respect and protect the natural environment.
Salmon, bald eagle, heron, warbler, crayfish, owl, mink, alewife, gulls, Blue Jay.
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