How many vascular plant species are there in a local hotspot of
... outline the status quo of knowledge about biodiversity in the region. For that, the species richness of two phytosociological surveys of 0.15 ha each were extrapolated using (a) the species-area relationship fitted by the power and the logarithmic model as well as (b) the taxon ratio model. The taxo ...
... outline the status quo of knowledge about biodiversity in the region. For that, the species richness of two phytosociological surveys of 0.15 ha each were extrapolated using (a) the species-area relationship fitted by the power and the logarithmic model as well as (b) the taxon ratio model. The taxo ...
English - SciELO Costa Rica
... local or total species extinctions. Diversity indices combine the number of species (or species richness), an attribute of the community related to historical factors, and species abundance which is an attribute of the population determined by the reproductive potential and survival rates of each sp ...
... local or total species extinctions. Diversity indices combine the number of species (or species richness), an attribute of the community related to historical factors, and species abundance which is an attribute of the population determined by the reproductive potential and survival rates of each sp ...
pdf file - UConn - University of Connecticut
... and Midgley 2001; Richards et al. 1995, 1997a,b). In contrast, the role of turnover from one geographic area to another among similar, often closely related species has been little explored. This work builds on previous work on experimental testing of the role of environment in setting distribution ...
... and Midgley 2001; Richards et al. 1995, 1997a,b). In contrast, the role of turnover from one geographic area to another among similar, often closely related species has been little explored. This work builds on previous work on experimental testing of the role of environment in setting distribution ...
First record of Craspedacusta sowerbii Lankester, 1880 (Cnidaria
... Azorean lakes, C. sowebii had never been previously found. In spite of insular systems being potentially highly vulnerable to invasive species due to low levels of diversity (and therefore competitors) and availability of ecological niches, the impact of this widespread jellyfish in Azorean lakes is ...
... Azorean lakes, C. sowebii had never been previously found. In spite of insular systems being potentially highly vulnerable to invasive species due to low levels of diversity (and therefore competitors) and availability of ecological niches, the impact of this widespread jellyfish in Azorean lakes is ...
Conference Programme
... Centre d‟Ecologie Fonctionnelle et Evolutive, CRNS, Montpellier, France This project aims to determine how large predator combinations impact on herbivore species‟ space use and foraging behaviour. To achieve this artificial foraging station were used as means of quantifying perceived predation risk ...
... Centre d‟Ecologie Fonctionnelle et Evolutive, CRNS, Montpellier, France This project aims to determine how large predator combinations impact on herbivore species‟ space use and foraging behaviour. To achieve this artificial foraging station were used as means of quantifying perceived predation risk ...
Intraspecific competition
... secondarily, they may reduce the intensity of interactions between organisms. Near-exclusive focus on the secondary effect of these forms of harshness has led ecologists to believe that they reduce the importance of ecological interactions, such as competition, and favor coexistence of even ecologic ...
... secondarily, they may reduce the intensity of interactions between organisms. Near-exclusive focus on the secondary effect of these forms of harshness has led ecologists to believe that they reduce the importance of ecological interactions, such as competition, and favor coexistence of even ecologic ...
untitled - DIGITAL.CSIC, el repositorio institucional
... et al. 2002), and most of the rescued birds (> 90%) are later released into the wild (Telfer et al. 1987, Ainley et al. 2001, Le Corre et al. 2002, Rodríguez & Rodríguez 2009, Miles et al. 2010, Fontaine et al. 2011). The Canary Islands are an important breeding area for petrels in the northeastern ...
... et al. 2002), and most of the rescued birds (> 90%) are later released into the wild (Telfer et al. 1987, Ainley et al. 2001, Le Corre et al. 2002, Rodríguez & Rodríguez 2009, Miles et al. 2010, Fontaine et al. 2011). The Canary Islands are an important breeding area for petrels in the northeastern ...
rtf - Florida Entomological Society
... Insects from food processing/handling facilities on the University of Florida campus were collected and assayed for the presence of Salmonella spp. bacteria. Insects were collected individually with aseptic techniques to prevent cross contamination. To detect the presence or absence of Salmonella sp ...
... Insects from food processing/handling facilities on the University of Florida campus were collected and assayed for the presence of Salmonella spp. bacteria. Insects were collected individually with aseptic techniques to prevent cross contamination. To detect the presence or absence of Salmonella sp ...
call diversity and diel
... and approach conspecific males. In species-rich tropical forests, large numbers of insect species along with birds and frogs use acoustic signals for mate attraction and territory defence. The ensemble of acoustically communicating species may be considered as an acoustic community similar to other ...
... and approach conspecific males. In species-rich tropical forests, large numbers of insect species along with birds and frogs use acoustic signals for mate attraction and territory defence. The ensemble of acoustically communicating species may be considered as an acoustic community similar to other ...
Human-modified ecosystems and future evolution
... ecosystem traits arising from deliberate human alteration of ecosystems. All of these characteristics are deliberate strategies to boost production and reproduction. As an evolutionary strategy, our success at commandeering resources and transforming the landscape to meet our needs has been phenomen ...
... ecosystem traits arising from deliberate human alteration of ecosystems. All of these characteristics are deliberate strategies to boost production and reproduction. As an evolutionary strategy, our success at commandeering resources and transforming the landscape to meet our needs has been phenomen ...
Opportunistic exploitation - School of Environmental and Forest
... species when commingled with the target species (e.g., Figure 5 in [4]). In fisheries, it has long been recognized that, in such a situation, maximizing catches from all species combined will result in the depletion or extirpation of lessresilient species [49–52]. Specific examples include the incid ...
... species when commingled with the target species (e.g., Figure 5 in [4]). In fisheries, it has long been recognized that, in such a situation, maximizing catches from all species combined will result in the depletion or extirpation of lessresilient species [49–52]. Specific examples include the incid ...
Ecological Applications at the Level of Organisms and Single
... Chapter 4) is another basic feature that theory . . . can guide management. For example, whether organisms are annuals or perennials, with or without dormant stages, large or small, or generalists or specialists may influence their likelihood of being a successful part of a habitat restoration proje ...
... Chapter 4) is another basic feature that theory . . . can guide management. For example, whether organisms are annuals or perennials, with or without dormant stages, large or small, or generalists or specialists may influence their likelihood of being a successful part of a habitat restoration proje ...
year 12 ecology powerpoint
... Niche Differentiation Interspecific competition is usually less intense than intraspecific competition because niche overlap between species is not complete. Species with similar ecological requirements may reduce competition by exploiting different microhabitats within the ecosystem. Example: Ecol ...
... Niche Differentiation Interspecific competition is usually less intense than intraspecific competition because niche overlap between species is not complete. Species with similar ecological requirements may reduce competition by exploiting different microhabitats within the ecosystem. Example: Ecol ...
A study of terrestrial molluscs with respect to their species richness
... 1999) which is true for Yashwant lake too where floristic diversity was also high (personal observation). [17] and [18] have reported that mollusc communities can differ between vegetation community types. Sites of high floristic diversity can be presumed to have higher fractional complexity and mor ...
... 1999) which is true for Yashwant lake too where floristic diversity was also high (personal observation). [17] and [18] have reported that mollusc communities can differ between vegetation community types. Sites of high floristic diversity can be presumed to have higher fractional complexity and mor ...
Pattern, process, and consequences of rarity
... processes behind rare species distributions. Some of these earlier efforts to establish general principles have been fundamental to shaping our present understanding of rarity. Griggs (1940) was perhaps the first to place plant rarity into an ecological context, acknowledging that plants do not stat ...
... processes behind rare species distributions. Some of these earlier efforts to establish general principles have been fundamental to shaping our present understanding of rarity. Griggs (1940) was perhaps the first to place plant rarity into an ecological context, acknowledging that plants do not stat ...
Pattern, process, and consequences of rarity
... processes behind rare species distributions. Some of these earlier efforts to establish general principles have been fundamental to shaping our present understanding of rarity. Griggs (1940) was perhaps the first to place plant rarity into an ecological context, acknowledging that plants do not stat ...
... processes behind rare species distributions. Some of these earlier efforts to establish general principles have been fundamental to shaping our present understanding of rarity. Griggs (1940) was perhaps the first to place plant rarity into an ecological context, acknowledging that plants do not stat ...
Weeds and the monitoring of biodiversity in Australian rangelands
... An alien plant is one that is present because of intentional or accidental introduction by humans, and that reproduces consistently and sustains populations over many life cycles without human intervention. An invasive plant is a naturalized plant that produces reproductive offspring at considerable ...
... An alien plant is one that is present because of intentional or accidental introduction by humans, and that reproduces consistently and sustains populations over many life cycles without human intervention. An invasive plant is a naturalized plant that produces reproductive offspring at considerable ...
Modelling macroevolutionary patterns: An
... decouple micro from macroevolutionary dynamics. Using simple models of macroevolution, most of the available statistical information obtained from the fossil record is remarkably well reproduced and explained within a new theoretical framework. ...
... decouple micro from macroevolutionary dynamics. Using simple models of macroevolution, most of the available statistical information obtained from the fossil record is remarkably well reproduced and explained within a new theoretical framework. ...
Natural Grasslands - Northern Tablelands Local Land Services
... extent of Natural Grasslands on your property and in your district. Many of the few remaining stands are located on stock routes and roadsides and can be inadvertently destroyed by road maintenance, grading, dumping soil or inappropriate fire or grazing regimes. Natural grasslands are most likely to ...
... extent of Natural Grasslands on your property and in your district. Many of the few remaining stands are located on stock routes and roadsides and can be inadvertently destroyed by road maintenance, grading, dumping soil or inappropriate fire or grazing regimes. Natural grasslands are most likely to ...
Abstracts PDF - California and Nevada Amphibian Populations Task
... Planning for Landscape Connectivity: Examples from Southern California The Southern California region is both a known ecological hotspot and an area with a large and increasing human population. To address species conservation and maintain habitat connectivity in this heavily populated region, numer ...
... Planning for Landscape Connectivity: Examples from Southern California The Southern California region is both a known ecological hotspot and an area with a large and increasing human population. To address species conservation and maintain habitat connectivity in this heavily populated region, numer ...
Primary Succession
... height in the canopy is not as high as it will become in a few more decades. b) Surtsey (Iceland – 1963) The shield volcano, Surtsey, is located 18 km beyond Heimaey on the periphery of the Vestmann Islands off south west Iceland. This extremely active area along the Mid-Atlantic Ridge has some of t ...
... height in the canopy is not as high as it will become in a few more decades. b) Surtsey (Iceland – 1963) The shield volcano, Surtsey, is located 18 km beyond Heimaey on the periphery of the Vestmann Islands off south west Iceland. This extremely active area along the Mid-Atlantic Ridge has some of t ...
Evolutionary consequences of changes in species` geographical
... Alluding to Darwin who used ‘‘permanent varieties’’ for species, there is not enough time for the varieties to become permanent. By an analogous argument, Diamond explained patterns in island endemism in land birds (32). Small islands or archipelagos with high population extinction rates produce few ...
... Alluding to Darwin who used ‘‘permanent varieties’’ for species, there is not enough time for the varieties to become permanent. By an analogous argument, Diamond explained patterns in island endemism in land birds (32). Small islands or archipelagos with high population extinction rates produce few ...
A Synthesis of the Census - Program for the Human Environment
... experts taking part in an international program to take a census of marine life in the ocean at the far south of the world collected specimens from up to 6,500 feet beneath the surface, and said many may never have been seen before. http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_ar ...
... experts taking part in an international program to take a census of marine life in the ocean at the far south of the world collected specimens from up to 6,500 feet beneath the surface, and said many may never have been seen before. http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_ar ...
Lizards as pollinators and seed dispersers: an island
... and mammals serve as important pollinators and seed dispersers of flowering plants, the role of lizards in these processes has traditionally been considered as rare and less important. However, recent work shows both that their role as mutualistic agents has been underestimated and also reveals a st ...
... and mammals serve as important pollinators and seed dispersers of flowering plants, the role of lizards in these processes has traditionally been considered as rare and less important. However, recent work shows both that their role as mutualistic agents has been underestimated and also reveals a st ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.