Search results
Results for "North Carolina"
Records 1–20 of 3521 displayed: go to page 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... | next | last
Search again: tags only or find only text | images | audio | video more options: advanced search
- The White Oak River: Introduction
- In A blackwater river from sea to source: The White Oak River transect, page 1
- One of the interesting things to do during field study of natural areas is to follow an environmental gradient across the landscape. This is particularly rewarding if your gradient extends up a river, as the exploration takes on the aura of a classic “search...
- By Dirk Frankenberg.
- How does decreasing salinity affect blackwater rivers?
- In A blackwater river from sea to source: The White Oak River transect, page 2
- All rivers that reach the sea have ocean water at their seaward ends, and freshwater at their sources. A trip up a river takes you along a gradient of salt concentration from near 3.5 percent (the average salinity, or salt content, of seawater) to zero. There...
- By Dirk Frankenberg.
- Mouth of the White Oak River
- In A blackwater river from sea to source: The White Oak River transect, page 3
- Figure 1 shows the mouth of the White Oak from Bear Island in Hammocks Beach State Park. The island on the far side of the inlet is Bogue Banks, and the buildings on the horizon at in the town of Emerald Isle. (These two islands are visited in the Large Sand...
- By Dirk Frankenberg.
- Bogue Inlet
- In A blackwater river from sea to source: The White Oak River transect, page 4
- Figure 2 is a photograph of Bear Island on the south side of Bogue Inlet taken from Bogue Bank, the land that appeared in the distance in figure 1. The dark object in the water is a sand bar formed by sediment that dropped from suspension as flooding tides...
- By Dirk Frankenberg.
- Intertidal sand flat salt marsh plants
- In A blackwater river from sea to source: The White Oak River transect, page 5
- Figure 3 shows a place where salt marsh plants have just become established on an intertidal sand flat. This is a relatively rare occurrence, because most marshes increase in size as a result of vegetative reproduction in which roots and similar underground...
- By Dirk Frankenberg.
- Sediment salt marshes
- In A blackwater river from sea to source: The White Oak River transect, page 6
- Figure 4 shows salt marshes growing inside the mouth of Bogue Inlet on sediment that has settled out of flooding tides. Areas of open water separate these marshes, but there is clearly more marsh than open water this close to the inlet. How these plants got...
- By Dirk Frankenberg.
- Extensive salt marsh
- In A blackwater river from sea to source: The White Oak River transect, page 7
- Figure 5 is a view looking towards the mainland from the high dunes on Bear Island. It shows the extensive salt marsh that has developed on intertidal sands and mud west of Bogue Inlet. These are the marshes you could see in the right-hand background of figure...
- By Dirk Frankenberg.
- White Oak River estuary
- In A blackwater river from sea to source: The White Oak River transect, page 8
- Figure 6 is a view of the high salinity, open water area of the White Oak River estuary about 4 miles inland of the mouth. Salt marsh still occurs on the estuary floor, but it is clearly much less extensive than closer to the ocean and its sources of sediment....
- By Dirk Frankenberg.
- Salt marsh cord grass & black needle rush plants (1)
- In A blackwater river from sea to source: The White Oak River transect, page 9
- Figure 7 shows us where the salt marshes are located in this high-salinity section of the White Oak estuary. Marshes develop mostly along the banks of tributary creeks. Here, you see the creek's mouth facing into the main portion of the estuary and the marshes...
- By Dirk Frankenberg.
- Red cedar marsh invasion
- In A blackwater river from sea to source: The White Oak River transect, page 11
- Figure 9 is a view of another tributary creek to the White Oak. Here, about 7 miles from the sea, we find that most of the marsh is dominated by black needle rush, with salt marsh cord grass occurring only in a few light-green patches along the water's edge....
- By Dirk Frankenberg.
- Salt marsh invasion
- In A blackwater river from sea to source: The White Oak River transect, page 12
- Whereas figure 9 seemed to show trees invading a marsh, figure 10 shows salt marsh invading a forest. The Juncos marsh shown here has grown up under the trees of a forest community known as the Estuarine Fringe Loblolly Pine Forest....
- By Dirk Frankenberg.
- Salt marsh cord grass & black needle rush plants (2)
- In A blackwater river from sea to source: The White Oak River transect, page 10
- Figure 8 shows a typical zonation of the two salt marsh plants shown first in figure 7. Note that the salt marsh cord grass is close to the water both in the foreground and background. The black needle rush does not appear in the foreground at all, but occupies...
- By Dirk Frankenberg.
- Tidal freshwater section of the White Oak (1)
- In A blackwater river from sea to source: The White Oak River transect, page 13
- Figure 11 is a view of a marsh about 10 miles upriver from the ocean. Here you see black needle rush along the water's edge along with a new plant, the freshwater sawgrass (cladium jamaicense) growing landward of it. In the background,...
- By Dirk Frankenberg.
- Tidal freshwater section of the White Oak (2)
- In A blackwater river from sea to source: The White Oak River transect, page 14
- Figure 12 shows another part of the tidal freshwater section of the White Oak. Here you can see not only red cedars growing close to the river but also a few pines and maples. The presence of the latter species tells us that the water almost never gets salty...
- By Dirk Frankenberg.
- Sawgrass fronts blackwater swamp forest (1)
- In A blackwater river from sea to source: The White Oak River transect, page 15
- Figure 13 is a view of a tidal freshwater section of the river where freshwater marsh dominated by sawgrass fronts a typical blackwater swamp forest. This is about 12 miles from the sea and does not get salt water very often at all. The log in the foreground...
- By Dirk Frankenberg.
- Sawgrass fronts blackwater swamp forest (2)
- In A blackwater river from sea to source: The White Oak River transect, page 16
- Figure 14 is the bank of the White Oak opposite that shown in figure 13. The swamp forest community shown in the background of figure 13 is growing right to the edge of the water here. Note the large loblolly pines in the right foreground and some bald cypress...
- By Dirk Frankenberg.
- Coastal plain blackwater bottomland hardwood forest community (1)
- In A blackwater river from sea to source: The White Oak River transect, page 17
- Figure 15 shows a coastal plain blackwater bottomland hardwood forest community about 100 yards back from the river. This community has a variety of small trees growing under the canopy trees of oak, maple, sweet gum, and pine. If you look closely at the forest...
- By Dirk Frankenberg.
- Coastal plain blackwater bottomland hardwood forest community (2)
- In A blackwater river from sea to source: The White Oak River transect, page 18
- Figure 16 show a view of the White Oak where it is usually nothing but a creek-sized stream about 25 feet across and a few inches deep. As you can see, the floodwaters of Hurricane Floyd continue to keep it out of its banks almost two months later. The are...
- By Dirk Frankenberg.
- Pocosin wetland community
- In A blackwater river from sea to source: The White Oak River transect, page 19
- Figure 17 is a view of a pocosin wetland community like those that comprise the source of the White Oak in Hoffman State Forest about thirty miles inland of Bogue Inlet. Pocosin is a Native American word reputed to mean “swamp on a hill.”...
- By Dirk Frankenberg.
- Cape Fear estuaries: Introduction
- In Cape Fear estuaries: From river to sea, page 1
- A quiet afternoon on the dock overlooking the Cape Fear estuary, fishing with friends. A gentle breeze clatters the marsh reeds and sends ripples floating across the water. A vision of stability and tranquility. Unfortunately, this vision is entirely misleading....
- By Steve Keith.
More results: page 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ... | next | last
