Quantifying Biodiversity: Experience with Parataxonomists and
... Wide Web by various search engines, using “parataxonomist” as a keyword, and found only seven sites that, to some extent, describe parataxonomist activities and training. This search has obvious limitations, such as the efficiency of the search engines, the reluctance of some researchers to publiciz ...
... Wide Web by various search engines, using “parataxonomist” as a keyword, and found only seven sites that, to some extent, describe parataxonomist activities and training. This search has obvious limitations, such as the efficiency of the search engines, the reluctance of some researchers to publiciz ...
Diversity of Interactions: A Metric for Studies of Biodiversity
... 2001; Magurran 2004; Jost 2006, 2007) apply to measures of interaction diversity (Cohen & Briand 1984). Because interactions are defined by the species observed interacting, distributions are likely to behave similarly to the number of species in having an effectively infinite number of unique units ...
... 2001; Magurran 2004; Jost 2006, 2007) apply to measures of interaction diversity (Cohen & Briand 1984). Because interactions are defined by the species observed interacting, distributions are likely to behave similarly to the number of species in having an effectively infinite number of unique units ...
Factors Determining Forest Diversity and Biomass on a Tropical
... may be partly due to sampling regime and the influence of the size of the area sampled. To avoid this possible artifact, more spatially explicit sampling across a variety of scales is required [19]. More studies are also required that attempt to link the elevational patterns of compositional change ...
... may be partly due to sampling regime and the influence of the size of the area sampled. To avoid this possible artifact, more spatially explicit sampling across a variety of scales is required [19]. More studies are also required that attempt to link the elevational patterns of compositional change ...
Figs and the Diversity of Tropical Rainforests
... 2005). In the forest flora of Ghana, only two figs were classified as common species (meaning that they were recorded in at least 4 out of the total of 168 plots), although Ficus was substantially the most diverse genus (Hall and Swaine 1981). The rarity of many figs also means that small areas do n ...
... 2005). In the forest flora of Ghana, only two figs were classified as common species (meaning that they were recorded in at least 4 out of the total of 168 plots), although Ficus was substantially the most diverse genus (Hall and Swaine 1981). The rarity of many figs also means that small areas do n ...
The Community Biodiversity Index and Biodiversity Awareness
... world. In 2015 the International Union for Conservation of Nature (IUCN) reported that species extinctions are continuing at about 1,000 times the natural rate, calculated from fossil records. Threats to biodiversity include habitat destruction, land conversion for agriculture and development, clima ...
... world. In 2015 the International Union for Conservation of Nature (IUCN) reported that species extinctions are continuing at about 1,000 times the natural rate, calculated from fossil records. Threats to biodiversity include habitat destruction, land conversion for agriculture and development, clima ...
Mapping species richness and human impact drivers to inform
... involve minimal displacement of fishing effort, which limits negative impacts on other areas (Worm et al., 2003). (3) Areas with low biodiversity and high impact may often be of lower conservation priority. However, it will be important to determine whether historical impacts have reduced biodiversit ...
... involve minimal displacement of fishing effort, which limits negative impacts on other areas (Worm et al., 2003). (3) Areas with low biodiversity and high impact may often be of lower conservation priority. However, it will be important to determine whether historical impacts have reduced biodiversit ...
A Review of Endemic Species in the Eastern Arc Afromontane Region
... into biogeographical questions, such as where certain species originated and how distribution patterns have changed over time. The humans and other species in the Eastern Arc also rely on the biodiversity for basic needs and survival, and if biodiversity in the region were to significantly drop, the ...
... into biogeographical questions, such as where certain species originated and how distribution patterns have changed over time. The humans and other species in the Eastern Arc also rely on the biodiversity for basic needs and survival, and if biodiversity in the region were to significantly drop, the ...
The relationship between local and regional species richness in
... Joseph Wunderle (Wunderle 1985) on several islands (Jamaica, St. Kitts, St. Lucia, Grenada [JW], and Tobago [JW]) and within two continental areas (Trinidad and central Panama) in the Caribbean Basin. (Trinidad was connected to the mainland of South America during Pleistocene sea level lows and has ...
... Joseph Wunderle (Wunderle 1985) on several islands (Jamaica, St. Kitts, St. Lucia, Grenada [JW], and Tobago [JW]) and within two continental areas (Trinidad and central Panama) in the Caribbean Basin. (Trinidad was connected to the mainland of South America during Pleistocene sea level lows and has ...
Wilderness Conservation in a Biodiversity Hotspot
... impressive, it excels in endemism at higher taxonomic levels. As a country, Madagascar’s numbers of endemic plant and animal families and genera are rivaled only by Australia, which is 13 times larger. As a hotspot, Madagascar is simply unmatched in these categories. Indeed, the Madagascar and India ...
... impressive, it excels in endemism at higher taxonomic levels. As a country, Madagascar’s numbers of endemic plant and animal families and genera are rivaled only by Australia, which is 13 times larger. As a hotspot, Madagascar is simply unmatched in these categories. Indeed, the Madagascar and India ...
Biodiversity - Pcpolytechnic
... • Island Biogeography – Everyplace is an island – Habitat fragmentation • Smaller fragments hold fewer species ...
... • Island Biogeography – Everyplace is an island – Habitat fragmentation • Smaller fragments hold fewer species ...
Conserving Biodiversity Notes (5.3)
... Excess CO2 can contribute to the ____________ ____________ (where gases in the atmosphere trap radiant energy from the sun, causing the earth to stay warm) Release of ____________ from making coolants & styrofoam has thinned the Ozone layer, which protects the earth from ultraviolet ____________ ...
... Excess CO2 can contribute to the ____________ ____________ (where gases in the atmosphere trap radiant energy from the sun, causing the earth to stay warm) Release of ____________ from making coolants & styrofoam has thinned the Ozone layer, which protects the earth from ultraviolet ____________ ...
Chapter 5
... species might have to relocate or they will die. The destruction of habitat, such as the clearing of tropical rain forests (deforestation), has a direct impact on global biodiversity. ...
... species might have to relocate or they will die. The destruction of habitat, such as the clearing of tropical rain forests (deforestation), has a direct impact on global biodiversity. ...
Linking Biological and Cultural Diversity
... Support and foster learning networks on bio-cultural approaches, linking grassroots and community initiatives with local, national, regional and global policy processes. ...
... Support and foster learning networks on bio-cultural approaches, linking grassroots and community initiatives with local, national, regional and global policy processes. ...
Biodiversity
... Climate Change: A New Driver? Biodiversity at local, regional, and global levels is at risk due mainly to ecosystem destruction followed by diverse human activities and ecosystem degradation affected by environmental pollution around the world. Recently, climate change possibly accelerated by globa ...
... Climate Change: A New Driver? Biodiversity at local, regional, and global levels is at risk due mainly to ecosystem destruction followed by diverse human activities and ecosystem degradation affected by environmental pollution around the world. Recently, climate change possibly accelerated by globa ...
Habitat heterogeneity, species diversity and null models
... landscapes where multiple habitats are nonexistent, highly dispersed, or of low areal extent, diversity may be low because of the absence of specialization and intense competition among generalists. Second, small habitat patches may increase overall quality of a pervasive habitat type (i.e. matrix) ...
... landscapes where multiple habitats are nonexistent, highly dispersed, or of low areal extent, diversity may be low because of the absence of specialization and intense competition among generalists. Second, small habitat patches may increase overall quality of a pervasive habitat type (i.e. matrix) ...
species diversity
... declines of birds and mammals • Habitat change hurts most organisms because they are adapted to an existing habitat. • Alteration due to: Forest clearing Urban development, Agriculture Global climate change, etc…. ...
... declines of birds and mammals • Habitat change hurts most organisms because they are adapted to an existing habitat. • Alteration due to: Forest clearing Urban development, Agriculture Global climate change, etc…. ...
Synergies among extinction drivers under global change
... As such, it is usually only under the most intense selection pressures, or when multiple stressors interact [10,21], that context becomes irrelevant [12,22] for predicting the fate of species. This is the most parsimonious explanation for the different rankings of the relative explanatory power of e ...
... As such, it is usually only under the most intense selection pressures, or when multiple stressors interact [10,21], that context becomes irrelevant [12,22] for predicting the fate of species. This is the most parsimonious explanation for the different rankings of the relative explanatory power of e ...
Myristica beddomei - Tropical Conservation Science
... Eastern Ghats [13]. It is a dominant, sub-canopy dioecious species [22] that flowers in early April-mid May in Kakachi. The fruits mature during April and May the following year, with most individuals fruiting in alternate years (T. Ganesh personal observation). There is only one species of Myristic ...
... Eastern Ghats [13]. It is a dominant, sub-canopy dioecious species [22] that flowers in early April-mid May in Kakachi. The fruits mature during April and May the following year, with most individuals fruiting in alternate years (T. Ganesh personal observation). There is only one species of Myristic ...
Effects of habitat area, isolation, and landscape diversity
... Habitat area (0.03 – 5.14 ha, average: 0.90 0.23 ha) was not correlated with habitat isolation (index: 2051 – 85 978, average: 23 019 3368) (r ¼ 0.013, P ¼ 0.944). Also landscape diversity (at a 250 m scale; Shannon–Wiener: 0.09– 1.56, average: 1.09 0.05) was not correlated with habitat isola ...
... Habitat area (0.03 – 5.14 ha, average: 0.90 0.23 ha) was not correlated with habitat isolation (index: 2051 – 85 978, average: 23 019 3368) (r ¼ 0.013, P ¼ 0.944). Also landscape diversity (at a 250 m scale; Shannon–Wiener: 0.09– 1.56, average: 1.09 0.05) was not correlated with habitat isola ...
full text
... Parks, with >2 billion visitors per year, KNBS 2014; 12.1% of the GDP and 9.2% of total ...
... Parks, with >2 billion visitors per year, KNBS 2014; 12.1% of the GDP and 9.2% of total ...
Bryoflora of the Itatiaia National Park along an elevation
... In terms of total number of species, the most common moss families were Leucobryaceae (5 genera, 31 species), Sphagnaceae (1 genus, 24 species), Pilotrichaceae (9 genera, 19 species), Orthotrichaceae (5 genera, 19 species), Bryaceae (8 genera, 14 species), Pottiaceae (8 genera, 15 species), Fissiden ...
... In terms of total number of species, the most common moss families were Leucobryaceae (5 genera, 31 species), Sphagnaceae (1 genus, 24 species), Pilotrichaceae (9 genera, 19 species), Orthotrichaceae (5 genera, 19 species), Bryaceae (8 genera, 14 species), Pottiaceae (8 genera, 15 species), Fissiden ...
Overgrazing - IDC Technologies
... with high variations in seasonal precipitation. In the case of certain North American temporate grasslands, overgrazing can be seen by wild ungulates, where top-level predator populations have lost their robustness; in particular, wolf, bear and puma populations have generally declined to the point ...
... with high variations in seasonal precipitation. In the case of certain North American temporate grasslands, overgrazing can be seen by wild ungulates, where top-level predator populations have lost their robustness; in particular, wolf, bear and puma populations have generally declined to the point ...
Using indices to measure biodiversity change through time 1
... and structure or to prioritise conservation policy decisions. The biodiversity value will depend not only on the habitat studied and the species examined, but also on the measurement used. There are many different indices of biodiversity but they are all based on species abundance or richness. The p ...
... and structure or to prioritise conservation policy decisions. The biodiversity value will depend not only on the habitat studied and the species examined, but also on the measurement used. There are many different indices of biodiversity but they are all based on species abundance or richness. The p ...
Comparative Analysis of Diversity and Similarity Indices with Special
... to calculate the expected maximum value of the indices to which the observed values can be related at any combination of sample sizes at the experimental sites. This paper examines the effects of sample size and diversity on the expected values of diversity indices and similarity indices, using vari ...
... to calculate the expected maximum value of the indices to which the observed values can be related at any combination of sample sizes at the experimental sites. This paper examines the effects of sample size and diversity on the expected values of diversity indices and similarity indices, using vari ...
Environmental and historical controls of floristic composition across
... Subsequent research, however, has shown that these widespread species represent a small minority of SDTF tree species and that floristic variation among SDTF sites across the Neotropics is high (e.g. Gillespie et al., 2000; Trejo & Dirzo, 2002; Linares-Palomino, 2006; Lott & Atkinson, 2006; Penningt ...
... Subsequent research, however, has shown that these widespread species represent a small minority of SDTF tree species and that floristic variation among SDTF sites across the Neotropics is high (e.g. Gillespie et al., 2000; Trejo & Dirzo, 2002; Linares-Palomino, 2006; Lott & Atkinson, 2006; Penningt ...
Tropical Andes
The Tropical Andes is a subregion of the Andes spanning all of the Andes except the southern mediterranean and temperate zones. The Tropical Andes area spans 1,542,644 km2.