The role of macrophytes in habitat structuring in aquatic
... biodiversity. We examined literature produced in both temperate and tropical regions, but prioritized the latter. We found a great variety of habitat complexity measurements that are applied to aquatic macrophytes to understand their influence on attached animal assemblages. A lack of standardizatio ...
... biodiversity. We examined literature produced in both temperate and tropical regions, but prioritized the latter. We found a great variety of habitat complexity measurements that are applied to aquatic macrophytes to understand their influence on attached animal assemblages. A lack of standardizatio ...
ENHANCING BIODIVERSITY HOTSPOTS
... THREATS: The major threats to this site on the Ward River are overgrazing of the riparian edge by cattle, overfishing, introduced carp (Cyprinus carpio) that can compete with and displace Murray cod, habitat degradation from water extraction, and erosion where visitors drive off the access road. Th ...
... THREATS: The major threats to this site on the Ward River are overgrazing of the riparian edge by cattle, overfishing, introduced carp (Cyprinus carpio) that can compete with and displace Murray cod, habitat degradation from water extraction, and erosion where visitors drive off the access road. Th ...
biodiversity in drylands - Food and Agriculture Organization of the
... pastoral and cropping systems for which they have selected and maintained the biological diversity they value most in domestic livestock and crops. 3.2- Status of Dryland Biodiversity Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerop ...
... pastoral and cropping systems for which they have selected and maintained the biological diversity they value most in domestic livestock and crops. 3.2- Status of Dryland Biodiversity Dryland ecosystems are unique. One can site such examples as the Mediterranean systems (e.g. the distinctive sclerop ...
Cypriniformes of Borneo (Actinopterygii, Otophysi)
... At a broader scale and in comparative analyses, Nelson (2006) estimated the number of freshwater fish species to be about 10,000 worldwide, 430 of which are from Borneo. Of this diversity more that 160 (37%) of the species are endemic (McGinley & Hogan 2008). However, other published literature repo ...
... At a broader scale and in comparative analyses, Nelson (2006) estimated the number of freshwater fish species to be about 10,000 worldwide, 430 of which are from Borneo. Of this diversity more that 160 (37%) of the species are endemic (McGinley & Hogan 2008). However, other published literature repo ...
Wood, Paul M., "Biodiversity as the Source of Biological Resources
... Swanson et al. (1992: 407) assert that ‘defining exactly what is meant by biodiversity [is] a notoriously intractable question’. Magurran (1988: 1) suggests that ‘diversity has a knack of eluding definition’. Salwasser (1988: 87) states flatly that it ‘defies definition’. Yet these authors and many ...
... Swanson et al. (1992: 407) assert that ‘defining exactly what is meant by biodiversity [is] a notoriously intractable question’. Magurran (1988: 1) suggests that ‘diversity has a knack of eluding definition’. Salwasser (1988: 87) states flatly that it ‘defies definition’. Yet these authors and many ...
Confounding factors in the detection of species responses to habitat
... loss per se are typically considered to pose the greatest current threat to biodiversity (Tilman et al., 1994 ; Dobson, Bradshaw & Baker, 1997), the size and spatial arrangement of remnant fragments is recognised to have a major effect on population dynamics and species persistence (Barbosa & Marquet ...
... loss per se are typically considered to pose the greatest current threat to biodiversity (Tilman et al., 1994 ; Dobson, Bradshaw & Baker, 1997), the size and spatial arrangement of remnant fragments is recognised to have a major effect on population dynamics and species persistence (Barbosa & Marquet ...
Conserving biodiversity and combating desertification: Achieving
... the determinants of the two problems better suited to the present situation and knowledge status? `Are there shared determinants of biodiversity decline and desertification in the Northern Mediterranean? ...
... the determinants of the two problems better suited to the present situation and knowledge status? `Are there shared determinants of biodiversity decline and desertification in the Northern Mediterranean? ...
Tropical tadpole assemblages: which factors affect their structure
... conductivity have distinct effects on tadpole assemblages (Odentaal & Bull 1983, Inger et al. 1986, Gascon 1991, Inger & Voris 1993, Parris & McCarthy 1999, Richards 2002, Eterovick 2003, Eterovick & Barata 2006, Oliveira & Eterovick 2009). Studies on tadpole assemblages in tropical streams are stil ...
... conductivity have distinct effects on tadpole assemblages (Odentaal & Bull 1983, Inger et al. 1986, Gascon 1991, Inger & Voris 1993, Parris & McCarthy 1999, Richards 2002, Eterovick 2003, Eterovick & Barata 2006, Oliveira & Eterovick 2009). Studies on tadpole assemblages in tropical streams are stil ...
keeping options alive - World Resources Report
... resources are located and why they are valuable, a new analysis of species extinctions in tropical forests that supports previous estimates and reinforces the magnitude of the problem that we face, and a survey of the most recent findings of conservation biology. The authors also suggest how these f ...
... resources are located and why they are valuable, a new analysis of species extinctions in tropical forests that supports previous estimates and reinforces the magnitude of the problem that we face, and a survey of the most recent findings of conservation biology. The authors also suggest how these f ...
Arguments for biodiversity: a literature review
... How do people understand biodiversity? Public attitudes toward biodiversity and measures to protect it drive public policy that influences biodiversity. While the BESAFE project builds on the understanding that people usually consider biodiversity a desirable feature or component of nature people ma ...
... How do people understand biodiversity? Public attitudes toward biodiversity and measures to protect it drive public policy that influences biodiversity. While the BESAFE project builds on the understanding that people usually consider biodiversity a desirable feature or component of nature people ma ...
Biodiversity 2020 - Natural England publications
... development of our seas, integrating economic growth, social need and ecosystem management ...
... development of our seas, integrating economic growth, social need and ecosystem management ...
Are Tree Species Diversity and Genotypic Diversity Effects on Insect
... Although the effects of plant diversity on primary productivity and plant competitive dynamics have received much attention over the last two decades [1, 2, 3,4], there is also increasing evidence for plant diversity effects on higher trophic levels [3,4,5,6,7,8,9,10]. In particular, a number of stu ...
... Although the effects of plant diversity on primary productivity and plant competitive dynamics have received much attention over the last two decades [1, 2, 3,4], there is also increasing evidence for plant diversity effects on higher trophic levels [3,4,5,6,7,8,9,10]. In particular, a number of stu ...
2014, vol 24 - Department of Biological Sciences
... Dartmouth College runs an annual 9-10 week ecological field research program in Costa Rica and the Caribbean. Manuscripts from the research projects in this program have been published in the annual volume “Dartmouth Studies in Tropical Ecology” since 1989. Copies are held in the Dartmouth library a ...
... Dartmouth College runs an annual 9-10 week ecological field research program in Costa Rica and the Caribbean. Manuscripts from the research projects in this program have been published in the annual volume “Dartmouth Studies in Tropical Ecology” since 1989. Copies are held in the Dartmouth library a ...
Habitat Loss and Fragmentation
... Numerous studies show that the spatial extent over which habitat is measured influences the strength of the relationship between habitat and the response of interest (e.g., abundance), and that this ‘‘scale of effect’’ is species specific (Carr and Fahrig, 2001; Holland et al., 2004; Roland and Tayl ...
... Numerous studies show that the spatial extent over which habitat is measured influences the strength of the relationship between habitat and the response of interest (e.g., abundance), and that this ‘‘scale of effect’’ is species specific (Carr and Fahrig, 2001; Holland et al., 2004; Roland and Tayl ...
Hunter-Gatherer Foraging Strategies in Tropical Grasslands: Model
... Hunter–gatherer adaptations to moist tropical grasslands are not well known from either the ethnographic or the archaeological record. This is unfortunate as grassland adaptations are clearly significant to human biological and behavioral evolution. The most effective strategy for remedying this pro ...
... Hunter–gatherer adaptations to moist tropical grasslands are not well known from either the ethnographic or the archaeological record. This is unfortunate as grassland adaptations are clearly significant to human biological and behavioral evolution. The most effective strategy for remedying this pro ...
landscape-level patterns of avian diversity in the
... the relative importance of mature forest area and fragmentation and differences among watersheds in influencing avian community diversity in the Oregon Coast Range, USA. Our study design included three large hydrological basins, two levels of fragmentation, and six levels of mature forest area. We r ...
... the relative importance of mature forest area and fragmentation and differences among watersheds in influencing avian community diversity in the Oregon Coast Range, USA. Our study design included three large hydrological basins, two levels of fragmentation, and six levels of mature forest area. We r ...
Are We Missing the Forest for the Trees?
... My family is well-‐‑known as the most bizarrely supportive group in the world. This is a fact for which I am endlessly grateful. It’s because of their tireless support that I survived this Ph.D. ...
... My family is well-‐‑known as the most bizarrely supportive group in the world. This is a fact for which I am endlessly grateful. It’s because of their tireless support that I survived this Ph.D. ...
Laufer et al_Use of
... a total line transect census effort of 1,739.6 km in the southern Amazonia, sloths were not detected (Michalski & Peres, 2007) and only three observations of B. tridactylus were made during 2,192 km of census in Varzea and Terra Firme forests in central-western Amazonia (Haugaasen & Peres, 2005). De ...
... a total line transect census effort of 1,739.6 km in the southern Amazonia, sloths were not detected (Michalski & Peres, 2007) and only three observations of B. tridactylus were made during 2,192 km of census in Varzea and Terra Firme forests in central-western Amazonia (Haugaasen & Peres, 2005). De ...
Good-bye poverty, hello biodiversity
... Exclusion: being left out. Extreme poverty: poverty level in which a person lives on less than $1.25 US per day. Gene: an important structure found in all cells that contains codes that make each individual unique. Genetic diversity: the total variety of genes. Habitat loss: a process in which ecosy ...
... Exclusion: being left out. Extreme poverty: poverty level in which a person lives on less than $1.25 US per day. Gene: an important structure found in all cells that contains codes that make each individual unique. Genetic diversity: the total variety of genes. Habitat loss: a process in which ecosy ...
A. Krolopp, Countdown 2010
... • Promote the use of market, corporate responsibility and regulatory schemes; • Support business with operational tools for biodiversity conservation and measuring their performance in meaningful ways, especially in small and medium sized companies; and • Encourage new incentives to develop and stre ...
... • Promote the use of market, corporate responsibility and regulatory schemes; • Support business with operational tools for biodiversity conservation and measuring their performance in meaningful ways, especially in small and medium sized companies; and • Encourage new incentives to develop and stre ...
Woodland key habitats evaluated as part of a functional reserve
... latest assessment, 38% of the red-listed species in Finland are forest species, and about 8% of all assessed forest species are threatened (Rassi et al., 2001). A large number of forest species has adapted to living under conditions that are not met in intensively managed forests. Also in Fennoscand ...
... latest assessment, 38% of the red-listed species in Finland are forest species, and about 8% of all assessed forest species are threatened (Rassi et al., 2001). A large number of forest species has adapted to living under conditions that are not met in intensively managed forests. Also in Fennoscand ...
Effects of Habitat Fragmentation on Biodiversity
... fragmentationper se (i.e., the breaking apartof habitat,controlling for changes in habitat amount) result in smaller patches (Figure 5). Using patch size as a measureof habitatfragmentationper se implicitly assumesthatpatch size is independentof habitatamountat the landscapescale (e.g., Niemelai2001 ...
... fragmentationper se (i.e., the breaking apartof habitat,controlling for changes in habitat amount) result in smaller patches (Figure 5). Using patch size as a measureof habitatfragmentationper se implicitly assumesthatpatch size is independentof habitatamountat the landscapescale (e.g., Niemelai2001 ...
Predicting the Long-Term Effects of Hunting on Plant Species
... Dispersal can also benefit species by providing a means for bet-hedging over spatiotemporal uncertainty in the environment (Cohen 1966; see Levin et al. 2003 for a review). If the probability of successful recruitment, and thus the expected payoff of a seed, varies sufficiently in space and time, th ...
... Dispersal can also benefit species by providing a means for bet-hedging over spatiotemporal uncertainty in the environment (Cohen 1966; see Levin et al. 2003 for a review). If the probability of successful recruitment, and thus the expected payoff of a seed, varies sufficiently in space and time, th ...
EBI PowerPoint Presentation
... into decisions about where they will work? > With a risk-based decision-support framework for aiding in site selection, companies can: ...
... into decisions about where they will work? > With a risk-based decision-support framework for aiding in site selection, companies can: ...
B-GTOS
... This would contain species that are observed to coexist at a given location and time. ...
... This would contain species that are observed to coexist at a given location and time. ...
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.