Diversity in Tropical Rain Forests and Coral Reefs Joseph H
... may help explain them, such gradients are just as likely to be produced by mechanisms not covered in the present article (6). Various hypotheses have been proposed to explain how local diversity is produced or maintained (or both). I have reduced the number to six, which fall into two general catego ...
... may help explain them, such gradients are just as likely to be produced by mechanisms not covered in the present article (6). Various hypotheses have been proposed to explain how local diversity is produced or maintained (or both). I have reduced the number to six, which fall into two general catego ...
The effect of human disturbance on fungal diversity in the tropics
... effect of human disturbance on fungal diversity in the tropics. Fungal Diversity 1: 19-26. An understanding of the effect of human disturbance on fungal diversity in the tropics is of paramount importance if we are to conserve renewable resources effectively. Sustainable development may provide rene ...
... effect of human disturbance on fungal diversity in the tropics. Fungal Diversity 1: 19-26. An understanding of the effect of human disturbance on fungal diversity in the tropics is of paramount importance if we are to conserve renewable resources effectively. Sustainable development may provide rene ...
evolution of old and new world migration systems
... Neotropics as well. Levey & Stiles (1992) proposed that intra-Tropical movements represent a strategy for exploitation of particular types of patchily-distributed resources rather than a characteristic of Nearctic migrants as opposed to Neotropical residents. In fact, such movements are typical for ...
... Neotropics as well. Levey & Stiles (1992) proposed that intra-Tropical movements represent a strategy for exploitation of particular types of patchily-distributed resources rather than a characteristic of Nearctic migrants as opposed to Neotropical residents. In fact, such movements are typical for ...
Behavioral Diversity (Ethodiversity): A Neglected Level in the Study
... complexity of life, with implications in many areas of science, philosophy, ethics, politics, and even religion. Three levels are included in the commonly accepted definitions: genetical, species, and ecosystem diversity, going from the intraspecific level to the landscape. Here, I argue that a four ...
... complexity of life, with implications in many areas of science, philosophy, ethics, politics, and even religion. Three levels are included in the commonly accepted definitions: genetical, species, and ecosystem diversity, going from the intraspecific level to the landscape. Here, I argue that a four ...
BIODIVERSITY AND HAZARDS MANAGEMENT
... common and widespread species are invading it at the expense of species restricted to that habitat. ...
... common and widespread species are invading it at the expense of species restricted to that habitat. ...
comparing species diversity and evenness indices
... obviously the consequence of the fact that the number of species will continually increase with sample size. The close resemblance between SI and M1 becomes obvious when noticing that M1 = 1-.jS1, as can be shown easily. This is important with regard to Hill's (1973) unifying notation where diversit ...
... obviously the consequence of the fact that the number of species will continually increase with sample size. The close resemblance between SI and M1 becomes obvious when noticing that M1 = 1-.jS1, as can be shown easily. This is important with regard to Hill's (1973) unifying notation where diversit ...
Wetlands Research Association Inc.
... professional personnel with expertise in geoheritage, wetland ecology, hydrology, soils, and vegetation; focused on education, wetland protection policy development, and assisting community groups in managing local natural resources. The Wetlands Research Association agrees that to reverse the decli ...
... professional personnel with expertise in geoheritage, wetland ecology, hydrology, soils, and vegetation; focused on education, wetland protection policy development, and assisting community groups in managing local natural resources. The Wetlands Research Association agrees that to reverse the decli ...
2010 - The Global Biodiversity Challenge
... Biodiversity is being lost at increasing rates At the genetic level • 75% crop genetic diversity lost in past century At the species level • 20% freshwater fish species are extinct, threatened of endangered in recent decades • 75 % marine fish stocks are depleted, overexploited or at biological lim ...
... Biodiversity is being lost at increasing rates At the genetic level • 75% crop genetic diversity lost in past century At the species level • 20% freshwater fish species are extinct, threatened of endangered in recent decades • 75 % marine fish stocks are depleted, overexploited or at biological lim ...
Problems with areal definitions of endemism: the effects of spatial
... a critical element in such studies. Studies at just one spatial scale, such as that of Bibby et al. (1992), not only evaluate just one point on the spectrum of geographic restriction, but that point may not be representative, in that different results may obtain across geographic regions differing i ...
... a critical element in such studies. Studies at just one spatial scale, such as that of Bibby et al. (1992), not only evaluate just one point on the spectrum of geographic restriction, but that point may not be representative, in that different results may obtain across geographic regions differing i ...
Habitat Loss and Fragmentation - Arkansas Forest Resources Center
... the remaining patches of original forest are still large. This process of landscape subdivision repeats itself at finer and finer scales until the landscape shifts to one predominated by cleared land, with patches of isolated forest (Figure 1c). Eventually, all of the landscape may be converted for ...
... the remaining patches of original forest are still large. This process of landscape subdivision repeats itself at finer and finer scales until the landscape shifts to one predominated by cleared land, with patches of isolated forest (Figure 1c). Eventually, all of the landscape may be converted for ...
Document
... A table listing the species that are included in each index can be found in the Datasheet. For each species, an estimate of change in the long-term and in the short-term is given, as well as an assessment of whether the species trend is increasing or decreasing. Since 2013, an improved analytical me ...
... A table listing the species that are included in each index can be found in the Datasheet. For each species, an estimate of change in the long-term and in the short-term is given, as well as an assessment of whether the species trend is increasing or decreasing. Since 2013, an improved analytical me ...
seasonality in an evergreen tropical mountain rainforest in southern
... allows a higher proportion of the radiation to penetrate the canopy and to create an improved light climate in the understory. When considering changes of the light climate in the aseasonal tropics, direct and diffuse global radiation must be differentiated. As the ratio of diffuse to direct global ...
... allows a higher proportion of the radiation to penetrate the canopy and to create an improved light climate in the understory. When considering changes of the light climate in the aseasonal tropics, direct and diffuse global radiation must be differentiated. As the ratio of diffuse to direct global ...
CV.pdf - Brian Klingbeil
... priorities for saltmarsh birds and their habitats across northeastern United States. Research incorporates data on species distributions, abundance and demography in combination with remote sensing and associated spatial data to prioritize locations for conservation. Results of prioritization are co ...
... priorities for saltmarsh birds and their habitats across northeastern United States. Research incorporates data on species distributions, abundance and demography in combination with remote sensing and associated spatial data to prioritize locations for conservation. Results of prioritization are co ...
Biodiversity - HCC Learning Web
... endangered or threatened and gives the U.S. government jurisdiction over those species. • Directs that no activity by a government agency should lead to the extinction of an endangered species. • Directs government agencies to use whatever means necessary to preserve the species in question. ...
... endangered or threatened and gives the U.S. government jurisdiction over those species. • Directs that no activity by a government agency should lead to the extinction of an endangered species. • Directs government agencies to use whatever means necessary to preserve the species in question. ...
Redalyc.Taxonomic, functional, and phenetic components of
... Patterns regarding evenness do not exist as measured from perspectives of the allocation of individuals to species, the allocation of species to functional groups, or the dispersion of species in phenetic space. This is true not only when examining relationships of these three components of biodiver ...
... Patterns regarding evenness do not exist as measured from perspectives of the allocation of individuals to species, the allocation of species to functional groups, or the dispersion of species in phenetic space. This is true not only when examining relationships of these three components of biodiver ...
Conserving Biological Diversity in Agricultural/Forestry Systems
... inhabit the world (Wilson 1988b). The United States is home for an estimated S00,000 species, of which small organisms, such as arthropods and microbes, comprise 9S% (Knutson 1989). As many as 1 million species of plants and animals will be exterminated worldwide during the next 20-year period (Reid ...
... inhabit the world (Wilson 1988b). The United States is home for an estimated S00,000 species, of which small organisms, such as arthropods and microbes, comprise 9S% (Knutson 1989). As many as 1 million species of plants and animals will be exterminated worldwide during the next 20-year period (Reid ...
Plant diversity in tropical forests: a review of mechanisms of species
... evident from non-random spatial distributions along micro-topographic gradients and from a survivorshipgrowth tradeoff during regeneration. Host-specific pests reduce recruitment near reproductive adults (the JanzenConnell effect), and, negative density dependence occurs over larger spatial scales a ...
... evident from non-random spatial distributions along micro-topographic gradients and from a survivorshipgrowth tradeoff during regeneration. Host-specific pests reduce recruitment near reproductive adults (the JanzenConnell effect), and, negative density dependence occurs over larger spatial scales a ...
Progress in Physical Geography
... herbaceous ground flora is sparse (Schimper, 1903; Richards, 1996). Research into the diversity of this biome has largely concentrated on species richness/number rather than equitability, or the number of individuals that comprise each species. Tropical rain forests are renowned for their high speci ...
... herbaceous ground flora is sparse (Schimper, 1903; Richards, 1996). Research into the diversity of this biome has largely concentrated on species richness/number rather than equitability, or the number of individuals that comprise each species. Tropical rain forests are renowned for their high speci ...
Cost-effective global conservation spending is robust to taxonomic
... million. (We chose this funding rate because it is equivalent to the amount made available in the fourth phase of the Global Environment Facility. See ref 14.) Each year, funds were allocated among the regions by using a heuristic that minimizes the short-term loss of biodiversity (ref. 13; supporti ...
... million. (We chose this funding rate because it is equivalent to the amount made available in the fourth phase of the Global Environment Facility. See ref 14.) Each year, funds were allocated among the regions by using a heuristic that minimizes the short-term loss of biodiversity (ref. 13; supporti ...
February - Phoenix Zoo
... pressure on in the world biological is not known, resources due however estimates to the sheer range from as low as number of humans three million to as high as populating the Earth. Tropical rainforest map. 117 million species. In recent Unfortunately, the areas on Mongabay.com years, researchers h ...
... pressure on in the world biological is not known, resources due however estimates to the sheer range from as low as number of humans three million to as high as populating the Earth. Tropical rainforest map. 117 million species. In recent Unfortunately, the areas on Mongabay.com years, researchers h ...
Palms at Inotawa
... The niche width of a species refers to the area which a species could physically inhabit; the niche width often differs from the area that a species actually inhabits, or its realized niche width. The niche concept has rarely been used in plant ecology due to the difficulty in defining a species’ ni ...
... The niche width of a species refers to the area which a species could physically inhabit; the niche width often differs from the area that a species actually inhabits, or its realized niche width. The niche concept has rarely been used in plant ecology due to the difficulty in defining a species’ ni ...
Does the size of a rock affect the diversity of the epilithic fauna?
... Not all substrate equal for organisms Larger rocks such as boulders preferred Medium rocks balance between disturbance and competition/predation (high diversity) ...
... Not all substrate equal for organisms Larger rocks such as boulders preferred Medium rocks balance between disturbance and competition/predation (high diversity) ...
Loss of Diversity as a Consequence of Habitat Destruction in
... The shape of the species extinction curve is dependent only upon the assumptions of the model and the species distribution profile. What would the extinction curve look like if the species distribution profile were exactly the opposite, in other words, if most species occurred in many, rather than f ...
... The shape of the species extinction curve is dependent only upon the assumptions of the model and the species distribution profile. What would the extinction curve look like if the species distribution profile were exactly the opposite, in other words, if most species occurred in many, rather than f ...
6.3 Temperate Forests and Rainforests
... Tropical rainforests cover less than _______ percent of Earth’s land, but ______ of all animal and plant species are found there. 5. How are temperate rainforests and tropical rainforests similar? How are they different? 6. How do tropical rainforests keep our planet cooler? 7. Describe one way that ...
... Tropical rainforests cover less than _______ percent of Earth’s land, but ______ of all animal and plant species are found there. 5. How are temperate rainforests and tropical rainforests similar? How are they different? 6. How do tropical rainforests keep our planet cooler? 7. Describe one way that ...
Descriptions - Bird Studies Canada
... efforts. “Landscape-oriented” recognizes the response of bird populations to habitat conditions across broad ecoregions and the need for conservation to operate at multiple geographic scales. The NABCI vision is one of habitat partnerships, based upon the North American Waterfowl Management Plan’s j ...
... efforts. “Landscape-oriented” recognizes the response of bird populations to habitat conditions across broad ecoregions and the need for conservation to operate at multiple geographic scales. The NABCI vision is one of habitat partnerships, based upon the North American Waterfowl Management Plan’s j ...
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.