Pollination in New Zealand
... countries, particularly those with a high diversity of large hairy bees (Fontaine et al. 2006; Winfree et al. 2007, 2008; Kremen 2008; Klein et al. 2012; Garibaldi et al. 2013). On the other hand, unmanaged non-native species are derived from stock either deliberately imported for agriculture or tha ...
... countries, particularly those with a high diversity of large hairy bees (Fontaine et al. 2006; Winfree et al. 2007, 2008; Kremen 2008; Klein et al. 2012; Garibaldi et al. 2013). On the other hand, unmanaged non-native species are derived from stock either deliberately imported for agriculture or tha ...
PDF - South Coast Wildlands
... inter-specific competition, and mutualism. Adequate landscape connections will thereby allow these ecosystems to respond appropriately to natural and unnatural environmental perturbations, such as fire, flood, climate change, and invasions by alien species. The tension between fragmentation and cons ...
... inter-specific competition, and mutualism. Adequate landscape connections will thereby allow these ecosystems to respond appropriately to natural and unnatural environmental perturbations, such as fire, flood, climate change, and invasions by alien species. The tension between fragmentation and cons ...
Contribution of Greenland to the Danish Fourth National Report
... The Kingdom of Denmark is the signatory part to the Convention of Biological Diversity. The Danish Kingdom consists of Denmark and the self-governing areas of Greenland and the Faeroe Islands. The Government of Greenland has the overall management responsibility over several sectors including the ri ...
... The Kingdom of Denmark is the signatory part to the Convention of Biological Diversity. The Danish Kingdom consists of Denmark and the self-governing areas of Greenland and the Faeroe Islands. The Government of Greenland has the overall management responsibility over several sectors including the ri ...
South Africa - BirdLife Data Zone
... interior plateau of South Africa. The dominant vegetation comprises grasses, with geophytes and herbs also well represented. These grasslands are maintained by a combination of relatively high summer rainfall, frequent fires, frost and grazing, which preclude the presence of shrubs and trees. Sweet ...
... interior plateau of South Africa. The dominant vegetation comprises grasses, with geophytes and herbs also well represented. These grasslands are maintained by a combination of relatively high summer rainfall, frequent fires, frost and grazing, which preclude the presence of shrubs and trees. Sweet ...
THE INFLUENCE OF THE AFRICAN ELEPHANT (LOXODONTA
... The African elephant (Loxodonta africana) - keystone species, ecosystem engineer and the cause of a global debate. A debate generated by the ecological and aesthetic concerns of managers and landowners in the face of increasing elephant populations in Southern Africa’s protected areas. These concern ...
... The African elephant (Loxodonta africana) - keystone species, ecosystem engineer and the cause of a global debate. A debate generated by the ecological and aesthetic concerns of managers and landowners in the face of increasing elephant populations in Southern Africa’s protected areas. These concern ...
the global 200
... because they harbor an estimated 50 percent of species on Earth. However, a comprehensive strategy for conserving global biodiversity should strive to save the other 50 percent of the species and the distinctive ecosystems that support them. Tropical dry forests, tundra, temperate grasslands, lakes, ...
... because they harbor an estimated 50 percent of species on Earth. However, a comprehensive strategy for conserving global biodiversity should strive to save the other 50 percent of the species and the distinctive ecosystems that support them. Tropical dry forests, tundra, temperate grasslands, lakes, ...
The ecological, economic and public health impacts of nuisance
... The larval stage is followed by the pupal stage, which can be free-swimming or sedentary, also in the water. The pupae swim to the surface and emerge as adults to begin their terrestrial and aerial phases of life where they often create nuisance swarms when mating occurs. For many chironomid species ...
... The larval stage is followed by the pupal stage, which can be free-swimming or sedentary, also in the water. The pupae swim to the surface and emerge as adults to begin their terrestrial and aerial phases of life where they often create nuisance swarms when mating occurs. For many chironomid species ...
Asymmetrical food web responses in trophic
... while all others are represented at both annual and seasonal time scales (three seasons: spring, summer and fall/winter combined). We also aggregated the zooplankton into a single trophic group as is commonly done in many lake studies (e.g., Micheli et al. 1999). All phytoplankton counted from LRL t ...
... while all others are represented at both annual and seasonal time scales (three seasons: spring, summer and fall/winter combined). We also aggregated the zooplankton into a single trophic group as is commonly done in many lake studies (e.g., Micheli et al. 1999). All phytoplankton counted from LRL t ...
Mexico - Seafood Watch
... octopus is globally distributed and can be found in depths up to 400 m, but is most abundant below 100 m (SAGARPA 2014a). The red octopus is endemic to the Yucatan Peninsula, Mexico and prefers shallow habitats from 0–60 m in depth (Voss and Solis Ramirez 1966) (Vaz-Pires et al. 2004). During the da ...
... octopus is globally distributed and can be found in depths up to 400 m, but is most abundant below 100 m (SAGARPA 2014a). The red octopus is endemic to the Yucatan Peninsula, Mexico and prefers shallow habitats from 0–60 m in depth (Voss and Solis Ramirez 1966) (Vaz-Pires et al. 2004). During the da ...
USE OF SELECTED FODDER SHRUBS IN THE RECLAMATION OF DEGRADED ARID RANGELANDS.
... nummularia. Established shrubs of the F1 “elite” generation were browsed by sheep. The most palatable shrubs were identified and seed from these shrubs will be used to produce seedlings that will go into further selection trials. The final section of this study was a comparison, in terms of quantity ...
... nummularia. Established shrubs of the F1 “elite” generation were browsed by sheep. The most palatable shrubs were identified and seed from these shrubs will be used to produce seedlings that will go into further selection trials. The final section of this study was a comparison, in terms of quantity ...
Ecological Opportunity and Adaptive Radiation
... The notion of ecological opportunity as a prerequisite for adaptive radiation stems from the pioneering work of George G. Simpson (1953), in which he defined ecological opportunity as an environment experienced by an ancestral species that was previously “occupied by organisms for some reason compet ...
... The notion of ecological opportunity as a prerequisite for adaptive radiation stems from the pioneering work of George G. Simpson (1953), in which he defined ecological opportunity as an environment experienced by an ancestral species that was previously “occupied by organisms for some reason compet ...
Pygmy Short-horned Lizard - Publications du gouvernement du
... Name and classification Horned lizards (Family: Phrynosomatidae), colloquially known as horny or horned toads, belong to a single genus (Phrynosoma). All species inhabit portions of the arid and semi-arid ecoregions of North and Central America. Currently there are 13 recognized species within the g ...
... Name and classification Horned lizards (Family: Phrynosomatidae), colloquially known as horny or horned toads, belong to a single genus (Phrynosoma). All species inhabit portions of the arid and semi-arid ecoregions of North and Central America. Currently there are 13 recognized species within the g ...
Part 3 Designing and Implementing Ecosystem Connectivity in the
... species in the areas surrounding communities. Connected ecosystems support ecosystem functions such as water cycles, soil production, and plant and animal species that make important contributions to human survival. For example, connected ecosystems enable pollination by providing habitat for insect ...
... species in the areas surrounding communities. Connected ecosystems support ecosystem functions such as water cycles, soil production, and plant and animal species that make important contributions to human survival. For example, connected ecosystems enable pollination by providing habitat for insect ...
A comparative study of morphometry in shell
... van Alstyne, 1993). Analyses of allometric relationships have been successful in generating a host of important insights into basic ecophysiological characteristics of organisms, particularly vertebrates (Schmidt-Nielsen, 1975, 1984). However, there is a paucity of comparative studies on the allomet ...
... van Alstyne, 1993). Analyses of allometric relationships have been successful in generating a host of important insights into basic ecophysiological characteristics of organisms, particularly vertebrates (Schmidt-Nielsen, 1975, 1984). However, there is a paucity of comparative studies on the allomet ...
view / - Mesoamerican Herpetology
... now subadult male frogs in pairs in an effort to minimize interaction, and placed multiple artificial phytotelma in each vivarium. Subsequently, we observed a second bout of combat between one of the two pairs, with the same results as the first observation, which led us to house each of the frogs i ...
... now subadult male frogs in pairs in an effort to minimize interaction, and placed multiple artificial phytotelma in each vivarium. Subsequently, we observed a second bout of combat between one of the two pairs, with the same results as the first observation, which led us to house each of the frogs i ...
i THE EVOLUTION OF SPECIES’ GEOGRAPHICAL RANGE LIMITS:
... There are many contexts in which we can consider species’ geographical ranges: community ecology, macroecology, biogeography, phylogeography, conservation or evolutionary biology. We may ask; for example, what is the significance of range shape, size or structure? In what habitats, in which countrie ...
... There are many contexts in which we can consider species’ geographical ranges: community ecology, macroecology, biogeography, phylogeography, conservation or evolutionary biology. We may ask; for example, what is the significance of range shape, size or structure? In what habitats, in which countrie ...
pdf document, 1.67 mb - Society for Tropical Ecology
... the world is changing fast. Change is normal, change is necessary, there is no doubt about that and as ecologists we are aware of that. But, and there is a big “BUT”, the speed, the dimensions and the quality of recent change are worrying. Ecosystems and species are disappearing. Natural and traditi ...
... the world is changing fast. Change is normal, change is necessary, there is no doubt about that and as ecologists we are aware of that. But, and there is a big “BUT”, the speed, the dimensions and the quality of recent change are worrying. Ecosystems and species are disappearing. Natural and traditi ...
Recovery Plan Appendix B
... endangered or of-concern under the Queensland Vegetation Management Act 1999 and Queensland Vegetation Management (Freehold Lands) Regulation. 4. Species in Gatton and Laidley Shires identified as having regional significance (within the South-East Queensland bioregion). Included are species where b ...
... endangered or of-concern under the Queensland Vegetation Management Act 1999 and Queensland Vegetation Management (Freehold Lands) Regulation. 4. Species in Gatton and Laidley Shires identified as having regional significance (within the South-East Queensland bioregion). Included are species where b ...
Draft SA LEB Fisheries ESD risk assessment report
... facing each fishery. The process is outlined below: 1. Generic ESD component trees were modified through an iterative process with stakeholders into a set of trees specific to each fishery. This process was used to identify all of the issues relevant to ESD performance of a fishery. 2. A risk assess ...
... facing each fishery. The process is outlined below: 1. Generic ESD component trees were modified through an iterative process with stakeholders into a set of trees specific to each fishery. This process was used to identify all of the issues relevant to ESD performance of a fishery. 2. A risk assess ...
ANATOMY AND BIOLOGY OF MITRA CORNEA LAMARCK, 1811
... glands (Figure 7, sg) are situated above the nerve ring (Figure 7, nr) in the anterior portion of the cephalic hemocoel, generally to the right of the retracted proboscis. The ducts from these glands run anteriorly alongside the esophagus, joining the epiproboscis at the bend, running at first ventr ...
... glands (Figure 7, sg) are situated above the nerve ring (Figure 7, nr) in the anterior portion of the cephalic hemocoel, generally to the right of the retracted proboscis. The ducts from these glands run anteriorly alongside the esophagus, joining the epiproboscis at the bend, running at first ventr ...
The role of selection within plant communities for ecosystem
... principle proposed that for species to coexist they must have different niches for if the niches of two species would completely overlap only one species could survive interspecific competition (Gause and Witt 1935). Grime proposed that an organism that is a strong competitor for one resource would ...
... principle proposed that for species to coexist they must have different niches for if the niches of two species would completely overlap only one species could survive interspecific competition (Gause and Witt 1935). Grime proposed that an organism that is a strong competitor for one resource would ...
Plant Diversity Affects Performance of Invasive Thistles in Restored
... establish in an ecosystem where there is an available niche. It can take advantage of a recent disturbance or opening caused by fire, flooding or overgrazing. If there are no natural enemies to control its population, whether it is insects, herbivores, or pathogens, an invasive may be more successfu ...
... establish in an ecosystem where there is an available niche. It can take advantage of a recent disturbance or opening caused by fire, flooding or overgrazing. If there are no natural enemies to control its population, whether it is insects, herbivores, or pathogens, an invasive may be more successfu ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.