Comparing aquatic and terrestrial grazing ecosystems: is the grass
... across aquatic systems (Stachowicz et al. 2007), and research in these wet ecosystems has helped drive the field forward in understanding the role of consumer diversity in ecosystems given that similar experimental manipulations are intractable in many terrestrial systems. In species rich grazing s ...
... across aquatic systems (Stachowicz et al. 2007), and research in these wet ecosystems has helped drive the field forward in understanding the role of consumer diversity in ecosystems given that similar experimental manipulations are intractable in many terrestrial systems. In species rich grazing s ...
Mycorrhizae – symbiotic mediators of rhizosphere and
... uptake benefits do not outweigh these carbon costs, then both plant and fungal growth can be depressed (Nylund and Wallander 1989; Peng et al. 1993; Colpaert et al. 1996). Mycorrhizal biomass has been shown to both increase and decrease with increasing availability of soil nitrogen (Wallenda and Kot ...
... uptake benefits do not outweigh these carbon costs, then both plant and fungal growth can be depressed (Nylund and Wallander 1989; Peng et al. 1993; Colpaert et al. 1996). Mycorrhizal biomass has been shown to both increase and decrease with increasing availability of soil nitrogen (Wallenda and Kot ...
symbiotic mediators of rhizosphere and ecosystem processes
... uptake benefits do not outweigh these carbon costs, then both plant and fungal growth can be depressed (Nylund and Wallander 1989; Peng et al. 1993; Colpaert et al. 1996). Mycorrhizal biomass has been shown to both increase and decrease with increasing availability of soil nitrogen (Wallenda and Kot ...
... uptake benefits do not outweigh these carbon costs, then both plant and fungal growth can be depressed (Nylund and Wallander 1989; Peng et al. 1993; Colpaert et al. 1996). Mycorrhizal biomass has been shown to both increase and decrease with increasing availability of soil nitrogen (Wallenda and Kot ...
A snapshot of the Lesser Kestrel
... (ca 60% since 2001). The population increase in this SPA is mainly due to breeding site improvements and maintenance of pseudo-steppe habitats, through the Castro Verde Zonal Plan which has been in place since 1995. In Vale do Guadiana SPA, the population is fluctuating, although it tends to decreas ...
... (ca 60% since 2001). The population increase in this SPA is mainly due to breeding site improvements and maintenance of pseudo-steppe habitats, through the Castro Verde Zonal Plan which has been in place since 1995. In Vale do Guadiana SPA, the population is fluctuating, although it tends to decreas ...
Abstracts - Society For Range Management
... planning effort to assist in prioritization of funding and management strategies to conserve or restore important habitat. Management strategies are types of actions or treatments and are divided into proactive approaches (e.g., fuels management and habitat recovery/restoration) and reactive approac ...
... planning effort to assist in prioritization of funding and management strategies to conserve or restore important habitat. Management strategies are types of actions or treatments and are divided into proactive approaches (e.g., fuels management and habitat recovery/restoration) and reactive approac ...
CBD Fourth National Report - Botswana (English version)
... Table 1: Ecoregions in Botswana and their global conservation status .................................................. 4 Table 2: Species richness within Botswana taxa..................................................................................... 6 Table 3: Types of Protected Areas in Botswan ...
... Table 1: Ecoregions in Botswana and their global conservation status .................................................. 4 Table 2: Species richness within Botswana taxa..................................................................................... 6 Table 3: Types of Protected Areas in Botswan ...
The role of selection within plant communities for ecosystem
... progeny of plants selected in mixture and grown on soil with inoculum from mixture plots. Finally, I test whether metabolic changes occur in response to selection in a community with a selection history of either monoculture or mixed species diversity over 8 years in the Jena Experiment, Germany (Ch ...
... progeny of plants selected in mixture and grown on soil with inoculum from mixture plots. Finally, I test whether metabolic changes occur in response to selection in a community with a selection history of either monoculture or mixed species diversity over 8 years in the Jena Experiment, Germany (Ch ...
When natural habitat fails to enhance biological pest control
... of biodiversity in agriculture (Benton et al., 2003; Schellhorn et al., 2015; but see Batáry et al., 2011). Heterogeneous landscapes with a diversity of, often intermingled, habitat types generally increase biodiversity and the services that flow from them (Tscharntke et al., 2005a). Therefore, combi ...
... of biodiversity in agriculture (Benton et al., 2003; Schellhorn et al., 2015; but see Batáry et al., 2011). Heterogeneous landscapes with a diversity of, often intermingled, habitat types generally increase biodiversity and the services that flow from them (Tscharntke et al., 2005a). Therefore, combi ...
A brown-world cascade in the dung decomposer food web of an
... Oksanen 2000) generalized the idea of predator topdown control to food chains with more than or fewer than three trophic levels and argued that predators with an odd number of trophic levels increase the abundance of producers in food chains (e.g., the three trophic levels of Hairston et al. 1960). ...
... Oksanen 2000) generalized the idea of predator topdown control to food chains with more than or fewer than three trophic levels and argued that predators with an odd number of trophic levels increase the abundance of producers in food chains (e.g., the three trophic levels of Hairston et al. 1960). ...
A FUTUREFOR - Cheetah Conservation Fund
... cheetah so fast also make it vulnerable. As the smallest of the large felids, the cheetah is not an aggressive animal. Unlike other big cats, a cheetah’s canine teeth are small, allowing for room for a larger nasal cavity that brings in air during high speed chases. Their blunt, doglike claws, super ...
... cheetah so fast also make it vulnerable. As the smallest of the large felids, the cheetah is not an aggressive animal. Unlike other big cats, a cheetah’s canine teeth are small, allowing for room for a larger nasal cavity that brings in air during high speed chases. Their blunt, doglike claws, super ...
... Plateau and Mojave Desert regions. This same study also refuted the long-held assumption that olackbrush was a paleoendemic species, generally lacking in genetic variation (Stebbins 1972; Stebbins and Major 1965). The assumption was based primarily on the fact that the genus is monotypic with few cl ...
A buffer for Etosha - Environmental Information Service
... “Attitudes to nature conservation”, the purpose of this study, a list of key questions and the research methodology itself. The landowners in the study area were divided into livestock farmers, game and livestock farmers, game farmers and blocks of farms with multiple land uses. The results (chapter ...
... “Attitudes to nature conservation”, the purpose of this study, a list of key questions and the research methodology itself. The landowners in the study area were divided into livestock farmers, game and livestock farmers, game farmers and blocks of farms with multiple land uses. The results (chapter ...
Detritus, trophic dynamics and biodiversity
... In terrestrial systems during soil formation, organisms create and manipulate detritus into complex and stable organic matter (Stevenson 1994), soil aggregates (Jones et al. 1994), hydrologic channels (Bardgett et al. 2001), and characteristic soil profiles. Mollisols, a soil order (type) typical of ...
... In terrestrial systems during soil formation, organisms create and manipulate detritus into complex and stable organic matter (Stevenson 1994), soil aggregates (Jones et al. 1994), hydrologic channels (Bardgett et al. 2001), and characteristic soil profiles. Mollisols, a soil order (type) typical of ...
parks victoria technical series ecosystem conceptual models for
... important threats, values and indicators, look at the park management plan, and align efforts with resources that are available. This approach would help to decide on the amount of effort and resources that should be assigned to different threats and values, and what should be monitored to gauge man ...
... important threats, values and indicators, look at the park management plan, and align efforts with resources that are available. This approach would help to decide on the amount of effort and resources that should be assigned to different threats and values, and what should be monitored to gauge man ...
Trophic ecology of meiofauna: Francisco J.A. Nascimento
... the studied cyanobacteria are nutritionally poor and, even if assimilated, do not much improve growth (Paper II). Still, cyanobacteria may provide critical maintenance energy for some meiofaunal populations during periods of the year when high quality food is unavailable. Paper III highlights how bi ...
... the studied cyanobacteria are nutritionally poor and, even if assimilated, do not much improve growth (Paper II). Still, cyanobacteria may provide critical maintenance energy for some meiofaunal populations during periods of the year when high quality food is unavailable. Paper III highlights how bi ...
How the proposed reintroduction of Eurasian lynx to Britain
... In 2015, the Lynx UK Trust declared its proposal for a UK reintroduction of the Eurasian lynx (Lynx lynx) – a large, forest-dwelling carnivore that would have significant interactions with human activities (Table 1). Aberdeenshire, Argyll and Bute, Cumbria, Norfolk, and Northumberland were announced ...
... In 2015, the Lynx UK Trust declared its proposal for a UK reintroduction of the Eurasian lynx (Lynx lynx) – a large, forest-dwelling carnivore that would have significant interactions with human activities (Table 1). Aberdeenshire, Argyll and Bute, Cumbria, Norfolk, and Northumberland were announced ...
Bells, bomas and beefsteak: complex patterns of human
... effective carnivore conservation. Over and above their contribution to ecosystem resilience as apex predators (Ripple et al., 2014), large carnivores are intimately interwoven with many human cultures (Kellert et al., 1996), they acts as umbrella species for wider habitat protection (Sergio et al., ...
... effective carnivore conservation. Over and above their contribution to ecosystem resilience as apex predators (Ripple et al., 2014), large carnivores are intimately interwoven with many human cultures (Kellert et al., 1996), they acts as umbrella species for wider habitat protection (Sergio et al., ...
Ethical issues in fisheries
... The need to integrate bio-ecological, socio-cultural, legal, institutional and technoeconomic considerations into discussion on fisheries resources has been widely accepted. An effort is now being made to articulate the ethical dimensions of the sustainable development of fisheries as an important p ...
... The need to integrate bio-ecological, socio-cultural, legal, institutional and technoeconomic considerations into discussion on fisheries resources has been widely accepted. An effort is now being made to articulate the ethical dimensions of the sustainable development of fisheries as an important p ...
The value of field margins for farmland birds
... have survived until today have to a greater or lesser degree been able to handle anthropogenic influences. One could argue that presently there is no place left in this world that is not to some extent influenced by humans, but in some habitats this influence is most pronounced. One of these habitat ...
... have survived until today have to a greater or lesser degree been able to handle anthropogenic influences. One could argue that presently there is no place left in this world that is not to some extent influenced by humans, but in some habitats this influence is most pronounced. One of these habitat ...
symbiotic mediators of rhizosphere and ecosystem processes
... benefits between plants and fungi will generate a positive feedback, and asymmetrical delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens ...
... benefits between plants and fungi will generate a positive feedback, and asymmetrical delivery of benefits will generate a negative feedback. Positive feedback strengthens the mutualism between individual pairs of plants and fungi, yet decreases community diversity; while negative feedback weakens ...
Opens external link in new window
... A dynamic complex of plant, animal and micro-organism communities and their non-living environment interacting as a functional unit. [Article 2 of the CBD] ...
... A dynamic complex of plant, animal and micro-organism communities and their non-living environment interacting as a functional unit. [Article 2 of the CBD] ...
J Appl Ecol ST2 - Monitoring Matters Network
... the data collection to the findings being used for decisionmaking. The degree of involvement by local stakeholders in environmental monitoring profoundly influences the spatial scale and speed of decision-making based on the monitoring data (Fig. 1; Table S2). Scientist-executed monitoring informs d ...
... the data collection to the findings being used for decisionmaking. The degree of involvement by local stakeholders in environmental monitoring profoundly influences the spatial scale and speed of decision-making based on the monitoring data (Fig. 1; Table S2). Scientist-executed monitoring informs d ...
Alfalfa Trap Cropping Increases Abundance Of Key Arachnids In An
... risks to farm workers, in addition to contaminating the soil and groundwater. The cost to the environment and public health in the United States is estimated at $12 billion annually. Finding effective nontoxic management strategies for insect pests has become essential for long term sustainability. ...
... risks to farm workers, in addition to contaminating the soil and groundwater. The cost to the environment and public health in the United States is estimated at $12 billion annually. Finding effective nontoxic management strategies for insect pests has become essential for long term sustainability. ...
America`s Grasslands - National Wildlife Federation
... The co-chairs of the “America’s Grasslands Conference: Status, Threats, and Opportunities” would like to thank our organizing committee as well as our sponsors. We would also like to thank all the presenters and registrants for contributing to this wonderful event as well as the Sioux Falls Conventi ...
... The co-chairs of the “America’s Grasslands Conference: Status, Threats, and Opportunities” would like to thank our organizing committee as well as our sponsors. We would also like to thank all the presenters and registrants for contributing to this wonderful event as well as the Sioux Falls Conventi ...
Northern Plains Grassland - accessible version
... climatic conditions, most notably rainfall and temperature, also influences flowering. Flora species are mostly perennials with few annuals. Some existing grassland remnants, particularly on the Gippsland Plains and the eastern part of the Northern Plains, may have lost their original woodland overs ...
... climatic conditions, most notably rainfall and temperature, also influences flowering. Flora species are mostly perennials with few annuals. Some existing grassland remnants, particularly on the Gippsland Plains and the eastern part of the Northern Plains, may have lost their original woodland overs ...