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plant species diversity in natural and managed forests of the pacific
plant species diversity in natural and managed forests of the pacific

... to canopy closure. However, diversity may remain depressed for more than two decades on severely burned sites, and some species may experience local extinction. Evidence of the effects of post-harvest practices on vascular plant diversity is limited by an absence of community-level studies in older, ...
Eastern Deciduous Forest Species
Eastern Deciduous Forest Species

... The bluegill is one of the most abundant Sunfish species. It thrives in a variety of conditions, ranging from freshwater lakes, ponds, and slow moving streams, to brackish waters of coastal areas. The bluegill’s native range is the eastern U.S. from southern Canada to Florida and Texas, but they hav ...
The Ozark/Ouachitas - Partners in Flight
The Ozark/Ouachitas - Partners in Flight

... Plans, of which this document is one. These plans identify species and habitats most in need of conservation, and establish objectives for bird populations and habitats in physiographic areas (ecoregions) and states. The plans not only identify the general habitat requirements of priority species at ...
Chapter 235 - El Niño and Biodiversity
Chapter 235 - El Niño and Biodiversity

... (see Observed Effects: Increased Sea-surface Temperature), regular ENSO events also increase the potential for long-range dispersal. Such migration and gene exchange often decreases geographic genetic structure. However, rarer and more extreme events may cause entirely new habitats to be colonized, ...
acorn connection addition_NEW
acorn connection addition_NEW

... the oaks have evolved a feast-and-famine regimen: occasional bumper crops, separated by years in which the consumers starve. ...
evolution of old and new world migration systems
evolution of old and new world migration systems

... environments may vary in different regions and situations. We also now know that, with the exception of the Afrotropical forests, which we discuss as a special case below, wintering migrants use forested habitats extensively, including rain forests. For example, 20 species of Nearctic migrants arriv ...
MANGROVE FOREST STRUCTURE ON THE SITTEE RIVER, BELIZE
MANGROVE FOREST STRUCTURE ON THE SITTEE RIVER, BELIZE

... reaches of the river-floodplain ecosystem (Figure 4-1). The ability to have seeds that float in water is an example of an adaptation for taking advantage of this energy subsidy. On the other hand, floods act to reduce the oxygenation of the soil, thereby stressing root function (Figure 4-2). This oc ...
Chapter 10 - Populations, Communities, and Ecosystems CHAPTER
Chapter 10 - Populations, Communities, and Ecosystems CHAPTER

... forest ecosystem. The climate is cool temperate, humid continental, with long, cold winters and short, cool summers. Prior to logging between about 1909 and 1917, the vegetation is thought to have been a mature, old-age forest. The watershed depicted in Figure 10.1 covers 13.23 hectares (ha) (1 ha = ...
Flowering patterns in a seasonal tropical lowland forest in Western
Flowering patterns in a seasonal tropical lowland forest in Western

... ecosystems since some studies have documented changes in ecological processes, such as fruit abundance, in association with weather anomalies over the past decades (Chapman et al. 2005, Wright & Calderon 2006). Although the evidence suggests that natural ecological patterns may be severely modified ...
2006plantecol
2006plantecol

... size of 986 m2. Ring analysis of A. saccharum saplings determined that all gaps were in the range of 2–5 years old, with a mean of 4.0 years. Local soils typically are sand or sandy loams beneath a <50 cm organic-rich surface layer. Nomenclature follows Morton and Venn (1990). Experimental species S ...
Seasonal changes in vertical canopy structure in a
Seasonal changes in vertical canopy structure in a

... to monitor temporal changes in the canopy, this method was useful to describe less-studied forest ecosystems, such as savanna and tropical forests of Thailand (Ogawa et al. 1961), a mature dipterocarp forest in Borneo (Yamakura et al. 1986), a Japanese larch plantation (Satoo 1970), and representati ...
Forest edges and habitat selection in birds: a functional approach
Forest edges and habitat selection in birds: a functional approach

... aspects of the environment, e.g., vegetation (Haapenen 1965, Tomialoj_ et al. 1981). Indeed, it is the distinction between the influence of internal and external factors at the edge which provides a useful distinction between ‘edge’ and ‘ecotone’ species. Edge species may be defined as species whic ...
Of the five species of non-human primates in South
Of the five species of non-human primates in South

... Of the five species of non-human primates in South Africa, baboons are the most adaptable to diverse environments. These diurnal, highly social animals are widely distributed throughout sub-Saharan Africa. They can exploit riverine forest and savannah and can also adapt to cultivated land. This rema ...
Flowering Patterns in a Seasonal Tropical Lowland Forest in
Flowering Patterns in a Seasonal Tropical Lowland Forest in

... ecosystems since some studies have documented changes in ecological processes, such as fruit abundance, in association with weather anomalies over the past decades (Chapman et al. 2005, Wright & Calderon 2006). Although the evidence suggests that natural ecological patterns may be severely modified ...
B I O D I V E R S I... R E S E A R C H
B I O D I V E R S I... R E S E A R C H

... multiple regressions. For cases in which both linear and polynomial regressions explained a significant amount of the variation in the relationship between the predictor variable and ant species richness, we report the adjusted r 2 for the model that explained more of the variation in ant species ri ...
Revista de Biología Tropical ISSN 0034
Revista de Biología Tropical ISSN 0034

... out that there was insufficient evidence to support any particular relationship between nutrient resorption and soil fertility. There are studies that demonstrate that nutrient resorption efficiency is higher on infertile soils (Boerner 1984, Scott et al. 1992), on fertile soils, and on intermediate ...
Can community-protected areas conserve biodiversity in human
Can community-protected areas conserve biodiversity in human

... For this study, we selected eight sites in MC, four corresponding to CPAs and four to OAFs (Fig. 1). Due to time and equipment limitations, only two sites were sampled inside the MABR, representing the GMR condition. The two GMR sampling sites were separated by 2km, while MC sites were separated by ...
Biodiversity and the African Savanna: Problems of Definition and
Biodiversity and the African Savanna: Problems of Definition and

... Savannas cover about half the African continent and one fifth of the land surface of the world [11]. Despite the fact that savannas cover a greater area of the earth’s surface than tropical moist forests, the latter areas receive more attention in the western media and research traditions, a situati ...
Economic Forest Workforce
Economic Forest Workforce

... Force on Forest Products, Conservation and Jobs to issue recommendations on conserving the forest and developing good jobs in Pennsylvania.. Despite the long title of the task force, we soon discovered how deeply and completely integrated and interdependent Pennsylvania’s forests are with the forest ...
The conservation potential of brook
The conservation potential of brook

... 2002, Gustafsson et al. 2004). However, when the current evidence is drawn together, there appears to be a slight difference between key habitats and the forest matrix in favour of key habitats (Timonen et al. 2011). Third, it is questionable whether such “precision conservation” can be efficient un ...
mammals, edge effects, and the loss of tropical forest diversity
mammals, edge effects, and the loss of tropical forest diversity

... often disperse and bury seeds, some of which survive to germinate (Smythe 1989). In fragments where mammals are absent, or where mammals have been lost to hunters, such dispersal does not occur. Mammal community composition thus may play an important role in the maintenance or loss of tree species d ...
Rainforests and You! - Rainforests and Coral Reefs Wiki
Rainforests and You! - Rainforests and Coral Reefs Wiki

... occurred in the Atlantic Coast of Brazil, in Western South America, in West-Central Africa, Madagascar, Indonesia, and the Philippines. Logging for wood products- Timber is taken from the tropical forests in excess of 3 billion cubic meters annually! A little over half of this is used for firewood, ...
Tree species distributions and local habitat variation in the Amazon
Tree species distributions and local habitat variation in the Amazon

... rivers flow east to meet the Napo and the Amazon. Except for swampy areas and floodplains of the larger rivers, the vegetation is a visually homogeneous tall, evergreen, terre firme forest, lacking large disturbances or clearings. The canopy is 10–25 m high punctuated with emergents to 40 and rarely ...
CK12 What are Biomes?
CK12 What are Biomes?

... Tropical rainforests and deserts are two familiar types of biomes. A biome is an area with similar populations of organisms. This can easily be seen with a community of plants and animals. Remember that a community is all of the populations of different species that live in the same area and interac ...
Lunt - ozecopdf
Lunt - ozecopdf

... sandhills of the Holey Plains. The region originally supported grassland, grassy woodland and grassy forest communities (Lunt, 1994a). Most indigenous vegetation has been cleared or substantially altered since European colonisation in the early 1840s, and stock grazing is the predominant landuse. Th ...
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Tropical Africa

Although tropical Africa is most familiar in the West as depicted by its rain forests, this region of Africa is far more diverse. While the tropics are thought of as regions with warm to hot moist climates caused by latitude and the tropical rain belt, the geology of areas, particularly mountain chains, and geographical relation to continental and regional scale winds impact the overall parts of areas, also, making the tropics run from arid to humid in West Africa. The area has very serious overpopulation problems.
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