Exchange of trace gases between the terrestrial
... the difficult problem of resolving relatively small differences between two large numbersthe terrestrial source of and sink for C0 2-have produced conflicting results for midlatitude ecosystems and much discussion. The potential strength of a midlatitude C0 2 sink is, however, less contentious, alth ...
... the difficult problem of resolving relatively small differences between two large numbersthe terrestrial source of and sink for C0 2-have produced conflicting results for midlatitude ecosystems and much discussion. The potential strength of a midlatitude C0 2 sink is, however, less contentious, alth ...
Forest Management for Reptiles and Amphibians
... species that thrive on the diversity of food and cover resources available where forests and harvest openings meet (Leopold 1930). However, research over the past several decades has demonstrated that changes in forest habitat structure caused by timber harvesting negatively affect some species whil ...
... species that thrive on the diversity of food and cover resources available where forests and harvest openings meet (Leopold 1930). However, research over the past several decades has demonstrated that changes in forest habitat structure caused by timber harvesting negatively affect some species whil ...
Forests, Human Health and Well-Being in Light of Climate
... Box 12.2 Forest and human health in tropical areas Caroline M. Hägerhäll and Carol J. Pierce Colfer Tropical forest dwellers often suffer from many physical illnesses. Their psychological health is also affected by outside pressures on their social and cultural systems. At the same time the health n ...
... Box 12.2 Forest and human health in tropical areas Caroline M. Hägerhäll and Carol J. Pierce Colfer Tropical forest dwellers often suffer from many physical illnesses. Their psychological health is also affected by outside pressures on their social and cultural systems. At the same time the health n ...
horticulturehintsfall2009highres1
... large nuts such as ‘Mahan’ and ‘Mohawk.’ Several factors can cause poor quality pecans. Large crop loads, lack of rainfall, inadequate fertility, scab disease, sooty mold, shuckworm damage and scorch mites are some of the more common causes of low-quality pecans. The high cost of eliminating many of ...
... large nuts such as ‘Mahan’ and ‘Mohawk.’ Several factors can cause poor quality pecans. Large crop loads, lack of rainfall, inadequate fertility, scab disease, sooty mold, shuckworm damage and scorch mites are some of the more common causes of low-quality pecans. The high cost of eliminating many of ...
suitable cavities as a scarce resource for both cavity and non
... expected (i.e. cavity nesters would be limited by the number of cavities) and, therefore, an increase in the abundance and/or richness of this avian guild in experimental plots was expected when compared with controls. In addition, if the whole avian community was limited by food resources, a decrea ...
... expected (i.e. cavity nesters would be limited by the number of cavities) and, therefore, an increase in the abundance and/or richness of this avian guild in experimental plots was expected when compared with controls. In addition, if the whole avian community was limited by food resources, a decrea ...
Quantifying the Stock of Soil Carbon Sequestration in
... International efforts to mitigate human-caused changes in the Earth‟s climate are considering a system of incentives that would encourage specific changes in land use that can help to reduce the atmospheric concentration of carbon dioxide. The two primary landbased activities that would help to mini ...
... International efforts to mitigate human-caused changes in the Earth‟s climate are considering a system of incentives that would encourage specific changes in land use that can help to reduce the atmospheric concentration of carbon dioxide. The two primary landbased activities that would help to mini ...
Carbon Balance in an Alpine Steppe in the Qinghai
... lower than other grasslands. Second, soil pH values have an impact on soil respiration, for example, Xu and Qi (2001) showed that CO 2 efflux was negatively correlated with soil pH values. In the present study the soil pH value was a little higher than in other grasslands. The C balances in our stud ...
... lower than other grasslands. Second, soil pH values have an impact on soil respiration, for example, Xu and Qi (2001) showed that CO 2 efflux was negatively correlated with soil pH values. In the present study the soil pH value was a little higher than in other grasslands. The C balances in our stud ...
Shanna Faulkner
... edition of 1970. His paper discussed several established generalizations about wet lowland tropical forests, including that these forests have high species diversity, and low density of adults of each species when compared to other forests. Janzen also discussed his additional generalized hypothesis ...
... edition of 1970. His paper discussed several established generalizations about wet lowland tropical forests, including that these forests have high species diversity, and low density of adults of each species when compared to other forests. Janzen also discussed his additional generalized hypothesis ...
Greenhouse Gas Removal
... Afforestation/Reforestation (AR) This refers to planting trees or managing existing forests to increase the amount of CO2 stored in vegetation. They could also aid biodiversity (if using mixed, native species), conserve ecosystems and restore natural forest habitats.9,10 Estimates of the negative em ...
... Afforestation/Reforestation (AR) This refers to planting trees or managing existing forests to increase the amount of CO2 stored in vegetation. They could also aid biodiversity (if using mixed, native species), conserve ecosystems and restore natural forest habitats.9,10 Estimates of the negative em ...
090-093_vanzolini-esp50 - Revista Pesquisa Fapesp
... Less-defined patches of forest In an 2005 interview with the newspaper Folha de São Paulo, Haffer stood by his Refuge Theory, but not without suggesting some corrections to how his work should be approached: “It’s likely that these patches of rainforest during the dry periods were larger and far le ...
... Less-defined patches of forest In an 2005 interview with the newspaper Folha de São Paulo, Haffer stood by his Refuge Theory, but not without suggesting some corrections to how his work should be approached: “It’s likely that these patches of rainforest during the dry periods were larger and far le ...
3.1 What Is Ecology?
... The Niche Every species has its own tolerance, or a range of conditions under which it can grow and reproduce. A species’ tolerance determines its habitat, the place where it lives. A niche consists of all the physical and biological conditions in which a species lives and the way the species obtain ...
... The Niche Every species has its own tolerance, or a range of conditions under which it can grow and reproduce. A species’ tolerance determines its habitat, the place where it lives. A niche consists of all the physical and biological conditions in which a species lives and the way the species obtain ...
Landscape Ecology and Natural Disturbances
... Objectives. The Biodiversity Guidebook (B.C. Ministry of Forests and B.C. Ministry of Environment, Lands and Parks ), a component of the Code, focuses on the significance of sustaining naturally occurring landscape patterns. The guidebook recommends a procedure for establishing and meeting objec ...
... Objectives. The Biodiversity Guidebook (B.C. Ministry of Forests and B.C. Ministry of Environment, Lands and Parks ), a component of the Code, focuses on the significance of sustaining naturally occurring landscape patterns. The guidebook recommends a procedure for establishing and meeting objec ...
EXOTICPEST ALERT
... unknown, and since then it has spread across Europe resulting in the premature defoliation of many horse chestnut trees. Horse chestnuts are widely used in prominent amenity plantings and the incidence of pests and disease problems associated with this tree species have previously been very low. It ...
... unknown, and since then it has spread across Europe resulting in the premature defoliation of many horse chestnut trees. Horse chestnuts are widely used in prominent amenity plantings and the incidence of pests and disease problems associated with this tree species have previously been very low. It ...
Cabinet Committee on Climate Change and Environment
... through primary productivity. Intact bog vegetation can fix up to 35 tonnes carbon/km2 per year. Grip blocking: Moorland drainage ditches are often referred to as “grips”. These grips were built in the past in an attempt to lower the level of the water-table such that the productivity of the land mi ...
... through primary productivity. Intact bog vegetation can fix up to 35 tonnes carbon/km2 per year. Grip blocking: Moorland drainage ditches are often referred to as “grips”. These grips were built in the past in an attempt to lower the level of the water-table such that the productivity of the land mi ...
Tree species Diversity and Regeneration of Tropical Dry Forests in
... and gallery forests was carried out in Chacocente National Wildlife Refuge during 1994 and 2000. A total of 29 families, 49 genera and 59 species were represented in 2 ha permanent plots in dry deciduous forest during 1994 and 2000 assessments. In the gallery forest, the number of families, genera a ...
... and gallery forests was carried out in Chacocente National Wildlife Refuge during 1994 and 2000. A total of 29 families, 49 genera and 59 species were represented in 2 ha permanent plots in dry deciduous forest during 1994 and 2000 assessments. In the gallery forest, the number of families, genera a ...
Chapter 18 Slide Show Notes
... • When these plants die, they add more nutrients to the soil. • This buildup is enough to support the growth of shrubs and trees. ...
... • When these plants die, they add more nutrients to the soil. • This buildup is enough to support the growth of shrubs and trees. ...
Slide 1
... • When these plants die, they add more nutrients to the soil. • This buildup is enough to support the growth of shrubs and trees. ...
... • When these plants die, they add more nutrients to the soil. • This buildup is enough to support the growth of shrubs and trees. ...
Lack of natural control mechanisms increases wildlife–forestry
... levels have also been affected such as decreasing songbird diversity (McShea and Rappole 2000; deCalesta 1994) and small mammal communities (Healy and Brooks 1988; Smit et al. 2001). Finally, increasing deer numbers cause economical damage to forest plantations enhancing the conflict between forestr ...
... levels have also been affected such as decreasing songbird diversity (McShea and Rappole 2000; deCalesta 1994) and small mammal communities (Healy and Brooks 1988; Smit et al. 2001). Finally, increasing deer numbers cause economical damage to forest plantations enhancing the conflict between forestr ...
rainforest restoration - Ministry of Environment and Forests
... production or based on ease of establishment in highly degraded areas such as mine spoils and sites where the top soil has been lost. For instance, the alien species Acacia auriculiformis is often used on abandoned mine sites. Rehabilitation: In rehabilitation, mostly native species are used in the ...
... production or based on ease of establishment in highly degraded areas such as mine spoils and sites where the top soil has been lost. For instance, the alien species Acacia auriculiformis is often used on abandoned mine sites. Rehabilitation: In rehabilitation, mostly native species are used in the ...
Climate Change Reader – 4o collated articles on
... carbon cycle, carbon sequestration, silviculture, inventories, policy This Information Note is rather old compared to other documents in this database yet this does not reduce how useful it is. The document covers the contribution that forestry can make to climate change mitigation through a number ...
... carbon cycle, carbon sequestration, silviculture, inventories, policy This Information Note is rather old compared to other documents in this database yet this does not reduce how useful it is. The document covers the contribution that forestry can make to climate change mitigation through a number ...
Exotic Invasive Species in the US Virgin Islands
... Tan tan is an exotic invasive plant closely linked with the land use history of an area. The fast growing pioneer thrives in freshly disturbed sites that have been cleared of vegetation. Tan tan seeds can persist in the soil for years, germinating when conditions are right. It thrives in agricultura ...
... Tan tan is an exotic invasive plant closely linked with the land use history of an area. The fast growing pioneer thrives in freshly disturbed sites that have been cleared of vegetation. Tan tan seeds can persist in the soil for years, germinating when conditions are right. It thrives in agricultura ...
the reproductive ecology of broadleaved trees and shrubs
... help stabilize slopes and slow erosion, they cycle nutrients within the system—in different forms, at different times, and in different amounts than do conifers—and some fix nitrogen, something no conifer can do. In addition, broadleaved trees and shrubs provide humans with a variety of special fore ...
... help stabilize slopes and slow erosion, they cycle nutrients within the system—in different forms, at different times, and in different amounts than do conifers—and some fix nitrogen, something no conifer can do. In addition, broadleaved trees and shrubs provide humans with a variety of special fore ...
Tropical forest loss and its multitrophic effects on insect herbivory
... especially insects, consuming 18% of the biomass produced annually (Cyr and Pace 1993), and this effect may even be stronger in tropical regions (Coley and Barone 1996). Thus, this ecological process is a key driver of forest ecosystem functioning, once leaf consumption by herbivores affects tree gr ...
... especially insects, consuming 18% of the biomass produced annually (Cyr and Pace 1993), and this effect may even be stronger in tropical regions (Coley and Barone 1996). Thus, this ecological process is a key driver of forest ecosystem functioning, once leaf consumption by herbivores affects tree gr ...
the risk assessment
... America. It can stand several degrees of frost in Florida. Nevertheless, it is too tender to fruit in California though it has been planted there on various occasions. It is well adapted to areas of low rainfall. That of Key West ranges from 30 to 50 in (75-125 cm) annually. The tree can tolerate lo ...
... America. It can stand several degrees of frost in Florida. Nevertheless, it is too tender to fruit in California though it has been planted there on various occasions. It is well adapted to areas of low rainfall. That of Key West ranges from 30 to 50 in (75-125 cm) annually. The tree can tolerate lo ...
chapter02Oct4
... What happens in the environment when humans change parts of the ecosystem, one of the trophic levels? How do we know when we are having a negative impact? What do we need to change to imbalance the system? Lets look at the classroom in Kane Hall again which is totally of human construct (not very n ...
... What happens in the environment when humans change parts of the ecosystem, one of the trophic levels? How do we know when we are having a negative impact? What do we need to change to imbalance the system? Lets look at the classroom in Kane Hall again which is totally of human construct (not very n ...
Reforestation
Reforestation is the natural or intentional restocking of existing forests and woodlands that have been depleted, usually through deforestation.Reforestation can be used to improve the quality of human life by soaking up pollution and dust from the air, rebuild natural habitats and ecosystems, mitigate global warming since forests facilitate biosequestration of atmospheric carbon dioxide, and harvest for resources, particularly timber.The term reforestation is similar to afforestation, the process of restoring and recreating areas of woodlands or forests that may have existed long ago but were deforested or otherwise removed at some point in the past. Sometimes the term re-afforestation is used to distinguish between the original forest cover and the later re-growth of forest to an area. Special tools, e.g. tree planting bar, are used to make planting of trees easier and faster.