Durham Research Online
... even higher. This means that at least 3.9% of all currently known vascular plant species on Earth (n = 337,137 [15]) have become naturalized outside their natural ranges as a result of human activity. With continuing globalization and increasing international traffic and trade, it is very likely tha ...
... even higher. This means that at least 3.9% of all currently known vascular plant species on Earth (n = 337,137 [15]) have become naturalized outside their natural ranges as a result of human activity. With continuing globalization and increasing international traffic and trade, it is very likely tha ...
Does biodiversity always increase the stability of eco
... strength of the effect varied. They stated that the diversity effects on productivity are stronger in stressful areas, as the overyielding signal was much weaker in mid-latitude areas. They further stated that several species did not grow faster, which shows that the effect is species-specific. Asyn ...
... strength of the effect varied. They stated that the diversity effects on productivity are stronger in stressful areas, as the overyielding signal was much weaker in mid-latitude areas. They further stated that several species did not grow faster, which shows that the effect is species-specific. Asyn ...
Latitudinal Gradients in Species Diversity PDF file
... gradient, many ecologists suggest instead this ecological pattern is likely to be generated by several contributory mechanisms (Gaston and Blackburn 2000,Willig et al. 2003, Rahbek et. al 2007). For now the debate over the cause of the latitudinal diversity gradient will continue until a groundbreak ...
... gradient, many ecologists suggest instead this ecological pattern is likely to be generated by several contributory mechanisms (Gaston and Blackburn 2000,Willig et al. 2003, Rahbek et. al 2007). For now the debate over the cause of the latitudinal diversity gradient will continue until a groundbreak ...
LETTERS Grassland species loss resulting from reduced niche dimension W. Stanley Harpole
... NC NH PC PH CH ...
... NC NH PC PH CH ...
complementary feeding niches sustained by size
... supports the hypothesis that one predator population can sustain another as a result of sizeselective predation on the prey of both predators. A highly selective predator excludes its preferred (large) food items and thus favors the presence of suboptimal (smaller-sized) prey populations which are t ...
... supports the hypothesis that one predator population can sustain another as a result of sizeselective predation on the prey of both predators. A highly selective predator excludes its preferred (large) food items and thus favors the presence of suboptimal (smaller-sized) prey populations which are t ...
Key Biodiversity Areas and governments
... Significant concentrations of a species (e.g. important migratory stops, nesting sites, nurseries or breeding areas); and/or ...
... Significant concentrations of a species (e.g. important migratory stops, nesting sites, nurseries or breeding areas); and/or ...
state of Britain's mammals a focus on invasive species
... new millennium there is little respite for the natural world. The problems caused by habitat destruction and fragmentation are well documented and continue at an alarming rate. The changing climate will also have far-reaching impacts on many of our species and habitats, in particular those animals w ...
... new millennium there is little respite for the natural world. The problems caused by habitat destruction and fragmentation are well documented and continue at an alarming rate. The changing climate will also have far-reaching impacts on many of our species and habitats, in particular those animals w ...
University of West
... Populus nigra clones from the peripheral areas showed greater differentiation in arthropod associations than clones from the more central areas of the geographic range These differences in arthropod associations could also be observed across the entire geographic range for the chewer, skeletoniser, ...
... Populus nigra clones from the peripheral areas showed greater differentiation in arthropod associations than clones from the more central areas of the geographic range These differences in arthropod associations could also be observed across the entire geographic range for the chewer, skeletoniser, ...
AN EXAMPLE FROM THE CALIFORNIA CHAPARRAL
... Almost universally, when fire ecologists address the question of what impact humans have had on the modern landscape, it is pointed out that the policy Of fire suppression has reduced the frequency of fires in most landscapes. I suggest that such has not been the case in the chaparral region of Cali ...
... Almost universally, when fire ecologists address the question of what impact humans have had on the modern landscape, it is pointed out that the policy Of fire suppression has reduced the frequency of fires in most landscapes. I suggest that such has not been the case in the chaparral region of Cali ...
A REPORT OF ORCONECTES (FAXONIUS) LIMOSUS
... resistant to pollution. As with other crayfish, O. limosus is primarily a consumer of ...
... resistant to pollution. As with other crayfish, O. limosus is primarily a consumer of ...
Dynamics of Ecosystems
... In dense forest ecosystems such as tropical rainforests, more than 90% of the moisture in the ecosystem is taken up by plants and then transpired back into the air. Because so many plants in a rainforest are doing this, the vegetation is the primary source of local rainfall. In a very real sense, th ...
... In dense forest ecosystems such as tropical rainforests, more than 90% of the moisture in the ecosystem is taken up by plants and then transpired back into the air. Because so many plants in a rainforest are doing this, the vegetation is the primary source of local rainfall. In a very real sense, th ...
References Carposinidae Carrion Beetles (Coleoptera: Silphidae)
... Sahara, in Australia (Fig. 25), or Antarctica. These beetles were once thought to be absent from the Indian subcontinent south of the Himalayas, but there may be a population of the recently described species Nicrophorus sausai in Meghalaya India, a mountainous region isolated from the Himalayas. Th ...
... Sahara, in Australia (Fig. 25), or Antarctica. These beetles were once thought to be absent from the Indian subcontinent south of the Himalayas, but there may be a population of the recently described species Nicrophorus sausai in Meghalaya India, a mountainous region isolated from the Himalayas. Th ...
La région de Smir comprenant la lagune, les marais et la plage
... Eteone longa. These species show a distinct zonation pattern on the beach, every species is occurring in its own specific zone. As information on the trophic position of these species is known, it was hypothesized that biotic interactions as competition and predation could play an important role in ...
... Eteone longa. These species show a distinct zonation pattern on the beach, every species is occurring in its own specific zone. As information on the trophic position of these species is known, it was hypothesized that biotic interactions as competition and predation could play an important role in ...
Deer/Wolf Predator Prey Relationships
... forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hun ...
... forest reserve about 518 square kilometers in size was about 2000 animals. Although the island had excellent vegetation for feeding, the food supply obviously had limits. Thus the forest management personnel feared that overgrazing might lead to mass starvation. Since the area was too remote for hun ...
Resource Partitioning in Ecological Communities
... geographically defined out of the system. These effects must differ for different kinds of animals and may bias the generalizations made in the following sections. Sometimes it is convenient or necessary to estimate resource differences by using species characteristics, usually morphological, that i ...
... geographically defined out of the system. These effects must differ for different kinds of animals and may bias the generalizations made in the following sections. Sometimes it is convenient or necessary to estimate resource differences by using species characteristics, usually morphological, that i ...
The Marine Biosecurity Porthole – a web
... the National Institute for Water and Atmospheric Research (NIWA) to provide greater public access to information and data on nonindigenous marine species (NIMS) in New Zealand. The porthole is primarily an interactive mapping application that allows verified observations on the distribution of NIMS ...
... the National Institute for Water and Atmospheric Research (NIWA) to provide greater public access to information and data on nonindigenous marine species (NIMS) in New Zealand. The porthole is primarily an interactive mapping application that allows verified observations on the distribution of NIMS ...
Document
... identified the presence of feral foxes, cats and rabbits on the properties. Considering Saturday’s damp coniditions, the herpetology (reptile) survey teams were very productive in identifying nine species, including: South Western Rock Skink (which may be a range extension), numerous Barking Geckos ...
... identified the presence of feral foxes, cats and rabbits on the properties. Considering Saturday’s damp coniditions, the herpetology (reptile) survey teams were very productive in identifying nine species, including: South Western Rock Skink (which may be a range extension), numerous Barking Geckos ...
Dung beetle assemblages on tropical land
... Despite its universal recognition, a potentially important feature of the SAR – the small island effect (SIE) – has been largely overlooked (Lomolino, 2000; Lomolino & Weiser, 2001). The SIE is the pattern where below a certain area, species richness may vary independently of island area. Higher ric ...
... Despite its universal recognition, a potentially important feature of the SAR – the small island effect (SIE) – has been largely overlooked (Lomolino, 2000; Lomolino & Weiser, 2001). The SIE is the pattern where below a certain area, species richness may vary independently of island area. Higher ric ...
Reference Sites in Ecological Restoration
... should begin within the watershed containing the site. If no good quality reference sites are found there then neighboring watersheds with similar characteristics should be assessed. The search can be narrowed by looking only at areas with similar elevation, aspect and topographic position. Topograp ...
... should begin within the watershed containing the site. If no good quality reference sites are found there then neighboring watersheds with similar characteristics should be assessed. The search can be narrowed by looking only at areas with similar elevation, aspect and topographic position. Topograp ...
Do Alien Plants Reduce Insect Biomass?
... Similarly, no one has addressed explicitly the question of whether generalist insects do as well on alien plants as on natives. However, the comparison has been quantified for other purposes in nine studies. In five comparisons there was more herbivory by generalists on natives than on introduced pl ...
... Similarly, no one has addressed explicitly the question of whether generalist insects do as well on alien plants as on natives. However, the comparison has been quantified for other purposes in nine studies. In five comparisons there was more herbivory by generalists on natives than on introduced pl ...
NYNHP Conservation Guide for Imperial Moth
... This species is attracted to artificial lighting. Artificial lighting can: increase predation risk, disrupt behaviors such as feeding, flight, and reproduction, and interfere with dispersal between habitat patches. In addition, many individuals die near the light source. It is not known if the impac ...
... This species is attracted to artificial lighting. Artificial lighting can: increase predation risk, disrupt behaviors such as feeding, flight, and reproduction, and interfere with dispersal between habitat patches. In addition, many individuals die near the light source. It is not known if the impac ...
DOC file - City of Fort Collins Public Records
... Implement corrective measures to protect habitat (e.g., riparian areas, remnant grasslands) before or as soon as degradation occurs. Employ management measures to prevent disturbance during mating and calving seasons. Identify movement/migration throughout the natural area. Remove unnecessary ...
... Implement corrective measures to protect habitat (e.g., riparian areas, remnant grasslands) before or as soon as degradation occurs. Employ management measures to prevent disturbance during mating and calving seasons. Identify movement/migration throughout the natural area. Remove unnecessary ...
Read our submission - Capricorn Conservation Council
... proposed residential & tourism accommodation/services, provides an unacceptable gateway for pest plants and animals to access and infiltrate the Island’s high value regional ecosystems. This would result in detrimental and irreversible impacts to vegetation, flora and fauna species via the direct th ...
... proposed residential & tourism accommodation/services, provides an unacceptable gateway for pest plants and animals to access and infiltrate the Island’s high value regional ecosystems. This would result in detrimental and irreversible impacts to vegetation, flora and fauna species via the direct th ...
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.