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Primary succession
Primary succession

... Shrubs replaced by shade-intolerant trees. Shade-intolerant trees replaced by shade-tolerant trees.  Stable, complex, climax community eventually reached. • Each step in the process is known as a successional (seral) stage, and the sequence of stages is called a sere. ...
High Conservation Value Forest Assessment in the Alberta
High Conservation Value Forest Assessment in the Alberta

... source report found 18 species and communities at their range edges, including dry boreal grasslands that would be impacted by fire suppression and salvage logging on sensitive sandy soils. 5. Summary report question 6 (source report questions 7-9). Summary report stated that Alberta Special Places ...
Day 32 10-8 habitat and unit trigger
Day 32 10-8 habitat and unit trigger

... How many toads were counted in 1987? Hundreds but few tadpoles. How many toads are there now? None (extinct) ...
Conserving the Forest Interior
Conserving the Forest Interior

... edges. Birds of the forest interior seek a different environment. They may actually avoid edges or have poor foraging and nesting success at edges. They find more of their preferred food (particularly insects on the ground and on foliage) deeper in the woods, as well as increased moisture, less nest ...
Info Harapan Rainforest - engl
Info Harapan Rainforest - engl

... good, but some areas will need replanting and active regeneration at a scale rarely attempted elsewhere in tropical forest restoration. In the long-term, the alliance of conservation organizations wants to restore Harapan Rainforest as close as possible to its condition before logging started. This ...
Influence of Anthropogenic Disturbances on Understory Plant
Influence of Anthropogenic Disturbances on Understory Plant

... physical changes strongly and reducing available habitat for native species (McKinney 2002), such as human population density, road density, air and soil pollution, average ambient temperature (‘heat island’ effect), average annual rainfall, soil compaction, soil alkalinity and other indicators of a ...
Habitat Fragmentation, Edge Effects and Biological
Habitat Fragmentation, Edge Effects and Biological

... Bibliography Dunning J.B., Danielson B.J., Pulliam R. (1992). Ecological processes that affect populations in complex landscapes. Oikos 65, 169–175. [This is a theoretical work that synthesizes the ecological processes that affect populations in modified landscapes]. Ewers R.M., Didham R.K. (2006). ...
pdf
pdf

... generally appreciated by the forest industry. As part of this process of improvement, some of the necessary basic research on interactions between forestry and biodiversity is being carried out in Ireland. This manual is one product of a COFORD-funded study on "Forest location and enhancement strate ...
Chapter 100 - Burnett County, WI
Chapter 100 - Burnett County, WI

... county forests. An opinion of the Attorney General with reference to the Forest Crop Law stated that the counties would be exempt from the owner's share of annual tax. The Legislature of 1929 specifically provided that counties were exempt from paying the "acreage share" required of private owners. ...
Regional and National Issues for Forest Wildlife Research and
Regional and National Issues for Forest Wildlife Research and

... (e.g., clearcutting, road construction, erosion, siltation of streams) on fish and wildlife populations, particularly threatened or endangered species, have been the subject of much research and debate. More recently, concern for forest wildlife has broadened in scope and scale. The influence of man ...
phenology of canopy trees in the ever
phenology of canopy trees in the ever

... in this forest type. In the wettest parts of the chavascal, the palm Mauritia flexuosa becomes locally abundant. There is little overlap in tree species composition between caatinga and the other two forest types sampled. Chavascal and terra firme however, overlapped greatly although they differ mar ...
Forest Health in the Blue Mountains
Forest Health in the Blue Mountains

... integral with short-term actions carried out with long-term objectives in mind. This rarely has been the case in the past where pest management activities were mainly oriented toward maintaining the forest status quo by temporarily reducing pest damage. Short term: In the short term, we need to util ...
Wood Thrush and Scarlet Tanager
Wood Thrush and Scarlet Tanager

... annual declines of more than 1.5% have been observed in the Atlantic Northern Forest, across the eastern Allegheny Plateau, and along the New England-Mid-Atlantic Coast (Fig. 2). The species has received SGCN designations in Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New J ...
Taiga - Eniscuola
Taiga - Eniscuola

... extremely old nomadic people which support themselves only on reindeer rearing, its population now just 180. These people live off a symbiotic relation with their animals, so much so that the Mongolians named them Tsaatan, i.e. reindeermen, from tang, people, and Tsaa Buga, snow deer; while they cal ...
Restoring Forest Landscapes A “Win
Restoring Forest Landscapes A “Win

... comprehensive forest landscape restoration has been recognised in the recently concluded Paris Agreement. To this end, the Paris Agreement requires countries to take action to conserve and enhance sinks and reservoirs of greenhouse gases including forests. It places special emphasis on the implement ...
Upland Hardwood Forest and Upland Mixed Forest
Upland Hardwood Forest and Upland Mixed Forest

... Limestone or phosphatic rock may be near the surface. Soils are generally sandy clays or clayey sands with substantial organic and sometimes calcareous components. These soils have higher nutrient levels than the sandy soils prevalent in most of Florida. The moisture retention properties of clays an ...
Forest Health highlights 2012 MAINE
Forest Health highlights 2012 MAINE

... are approximately 17.7 million acres in the State that are forested. The forest resource is made up of a variety of forest types, mostly spruce and balsam fir, maples, other hardwoods, and pine. Maine’s forests provide much of the raw materials to fuel the State’s mills and serve as the backdrop for ...
two ecosystem engineers interact to degrade deciduous forests of
two ecosystem engineers interact to degrade deciduous forests of

... any time in the past century (McShea et al. 1997). The reason for this increase is multifaceted and includes an effect of reduced hunting pressure, loss of apex predators, and widespread changes in land use and cover. Ungulates across their ranges in North America have benefited from the extirpation ...
Info on the workshop
Info on the workshop

... Aim of the workshop The aim of this workshop is to discuss how large mammalian herbivores shape woody plant communities around the world. There is a strong history in studying this on the southern hemisphere as well as on the northern hemisphere but these research lines seem to be quite separated. W ...
Pii - SLU
Pii - SLU

... have been introduced in substantial numbers, or which have spread naturally in their new environments, have generated much public reaction, leaving hardly anyone untouched (Richardson and Rundel, 1998). Public attitudes towards exotic tree species are important aspects of the introduction process. H ...
Conservation of tropical forests: maintaining ecological integrity and
Conservation of tropical forests: maintaining ecological integrity and

... tats significantly for thousands of years (Heckenberger et al. 2008), current human per­ turbations to tropical forests differ in terms of their scale and intensity. Furthermore, they coincide with other, escalating drivers of global change including climate change, fragmenta­ tion, invasive species ...
Preliminary Program
Preliminary Program

... Fire resistance properties of tree bark as a function of its bark thickness, moisture content, surface topology, density, chemical composition, and the impact of surface fire damage on post-fire growth Effect of fertilizer application on productivity, stem form and basic wood density in Eucalyptus g ...
Feature 1
Feature 1

... at the lowest point, and the highest point is the summit of Mt. Mikuni-dake, the third highest mountain in Kyoto Prefecture. Two-thirds of the area is at more than 600 m above the sea level. ...
FOREST DEGRADATION IN ETHIOPIA: EXTENT AND
FOREST DEGRADATION IN ETHIOPIA: EXTENT AND

Champlain Valley Clayplain Forest Restoration
Champlain Valley Clayplain Forest Restoration

... geologic time, the area was uplifted by a series of mountain building events, including the Taconic and Acadian Orogenies (440-430 mya and 400-350 mya, respectively). In more recent geologic time, the Champlain Valley was first glaciated, then inundated by water from melting ice as the glaciers retr ...
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Old-growth forest



An old-growth forest (also termed primary forest, virgin forest, primeval forest, late seral forest, or in Britain, ancient woodland) is a forest that has attained great age without significant disturbance and thereby exhibits unique ecological features and might be classified as a climax community. Old-growth features include diverse tree-related structures that provide diverse wildlife habitat that increases the bio-diversity of the forested ecosystem. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris.Old-growth forests are economically valuable, and logging of these forests has been a point of contention between the logging industry and environmentalists.
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