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... Efforts to control clidemia (Clidemia hirta) in Hawai'i with phytophagous insects began in 1952. Several attempts have been made since then to introduce potential biological control agents to reduce the spread of this weed into forest areas, and other control measures have been tried by various grou ...
... Efforts to control clidemia (Clidemia hirta) in Hawai'i with phytophagous insects began in 1952. Several attempts have been made since then to introduce potential biological control agents to reduce the spread of this weed into forest areas, and other control measures have been tried by various grou ...
book of abstracts as PDF
... 1 National museum of Natural History of Luxembourg; 2 Philipps-Universität Marburg ...
... 1 National museum of Natural History of Luxembourg; 2 Philipps-Universität Marburg ...
Laurance 2008 - Reed F. Noss Lab at the University of Central
... poorer soils, at higher elevations, and on partially inundated lands. In addition, habitat fragments near roads and townships are often older, more isolated, and smaller than those located further afield, where habitat destruction is more recent (Laurance, 1997; Fahrig, 2003). The influence of nonra ...
... poorer soils, at higher elevations, and on partially inundated lands. In addition, habitat fragments near roads and townships are often older, more isolated, and smaller than those located further afield, where habitat destruction is more recent (Laurance, 1997; Fahrig, 2003). The influence of nonra ...
Interspecific Competition and Species` Distributions
... There are 336 papers that deal in some way with interspecific competition in 2. Applied research: 31% of 332 papers. These include, for example, papers by 71,610 pages of the four journals from plant ecologists trying to save the 1920-1959. Of these, only fourteen are American prairie and tropical b ...
... There are 336 papers that deal in some way with interspecific competition in 2. Applied research: 31% of 332 papers. These include, for example, papers by 71,610 pages of the four journals from plant ecologists trying to save the 1920-1959. Of these, only fourteen are American prairie and tropical b ...
Community structure and composition in response to climate change
... temperature and moisture conditions (Thuiller et al., 2005). The possible interaction between climate warming and changing precipitation regimes in regulating plant community structure and composition (Bates et al., 2005) may pose great challenges to simulation and projection of future dynamics of t ...
... temperature and moisture conditions (Thuiller et al., 2005). The possible interaction between climate warming and changing precipitation regimes in regulating plant community structure and composition (Bates et al., 2005) may pose great challenges to simulation and projection of future dynamics of t ...
Landscape elements as potential barriers and corridors for bees
... We installed a total of 110 pan traps in the centre of the calcareous grasslands and on the grass strips in the mentioned distances from the traps on the grassland. To account for foraging movements of wild bees, we chose pan traps, which attract the bees by their colour (Westphal et al., 2008). One ...
... We installed a total of 110 pan traps in the centre of the calcareous grasslands and on the grass strips in the mentioned distances from the traps on the grassland. To account for foraging movements of wild bees, we chose pan traps, which attract the bees by their colour (Westphal et al., 2008). One ...
Interspecific interaction strength influences population density more
... that in more complex networks, the role of interspecific interaction strength would be more important than that of carrying capacity in explaining population densities within a community because species received more effects from other species. Besides direct species interactions, impacts of indirect ...
... that in more complex networks, the role of interspecific interaction strength would be more important than that of carrying capacity in explaining population densities within a community because species received more effects from other species. Besides direct species interactions, impacts of indirect ...
Book Chapter Zooplankton of Lake Kivu
... conspicuous maxima occurring in the second half of the dry season, around August– September. Contrasting dynamics occurred among species (Fig. 7.7), but the three main taxa showed well-correlated maxima during the dry season (Fig. 7.7a). Nauplii and post-naupliar stages followed the same dynamics, w ...
... conspicuous maxima occurring in the second half of the dry season, around August– September. Contrasting dynamics occurred among species (Fig. 7.7), but the three main taxa showed well-correlated maxima during the dry season (Fig. 7.7a). Nauplii and post-naupliar stages followed the same dynamics, w ...
A New View of Species Extinction - The Dartmouth Undergraduate
... whales, they usually travel alone or in pairs and can hear each other from up to 1,000 miles away (9). Their relatively low densities make it difficult for researchers to learn about their migration patterns and life histories. Blue whales not only represent a marvel as the world’s largest animal, b ...
... whales, they usually travel alone or in pairs and can hear each other from up to 1,000 miles away (9). Their relatively low densities make it difficult for researchers to learn about their migration patterns and life histories. Blue whales not only represent a marvel as the world’s largest animal, b ...
Parasite establishment in host communities - People
... contacts across than within species. In this case, a mixture of host species more readily sustains the parasite than does either host alone. This matches the ÔcomplementaryÕ resource case of Tilman (1982). Two final cases correspond to situations where there is, for one or both host species, no thre ...
... contacts across than within species. In this case, a mixture of host species more readily sustains the parasite than does either host alone. This matches the ÔcomplementaryÕ resource case of Tilman (1982). Two final cases correspond to situations where there is, for one or both host species, no thre ...
Advice to the Minister for Sustainability, Environment, Water
... vegetation through dislodging plants during foraging (Roberts et al., 1995). The olive perchlet inhabits the vegetated edges of rivers, creeks and swamps, and appears to be heavily reliant upon aquatic vegetation for cover (Allen and Burgess, 1990; Moffat and Voller, 2002). The species also uses aqu ...
... vegetation through dislodging plants during foraging (Roberts et al., 1995). The olive perchlet inhabits the vegetated edges of rivers, creeks and swamps, and appears to be heavily reliant upon aquatic vegetation for cover (Allen and Burgess, 1990; Moffat and Voller, 2002). The species also uses aqu ...
Top Ten Largest Deserts
... Columbia Plateau to the north and the Mojave and Sonoran deserts to the south. •This is a cool or "cold desert" due to its more northern latitude, as well as higher elevations (at least 3,000 feet, but more commonly from 4,000 to 6,500 feet). In winter it gets snow. •Whirlwinds of dust often form ov ...
... Columbia Plateau to the north and the Mojave and Sonoran deserts to the south. •This is a cool or "cold desert" due to its more northern latitude, as well as higher elevations (at least 3,000 feet, but more commonly from 4,000 to 6,500 feet). In winter it gets snow. •Whirlwinds of dust often form ov ...
Bio 4.3
... soil, mosses and other plants can colonize and grow. As organic matter continues to accumulate, other species move in and change the environment further. Over time, more and more species can find suitable niches and survive. ...
... soil, mosses and other plants can colonize and grow. As organic matter continues to accumulate, other species move in and change the environment further. Over time, more and more species can find suitable niches and survive. ...
Leopardus jacobita, Andean Cat
... scats of the Andean Cat from 3,714 to 4,414 m, but the probability of finding scats increased with altitude. In Bolivia, Villalba et al. (2008) consider it to occur generally only from 4,100 m and higher, and most records from Peru were collected at 4,000 m or higher (Cossios et al. 2007). While ran ...
... scats of the Andean Cat from 3,714 to 4,414 m, but the probability of finding scats increased with altitude. In Bolivia, Villalba et al. (2008) consider it to occur generally only from 4,100 m and higher, and most records from Peru were collected at 4,000 m or higher (Cossios et al. 2007). While ran ...
The relationship between biodiversity and ecosystem functioning in
... the absence of herbivores, total plant biomass saturates at high diversity levels as has often been shown previously (Tilman et al. 1997; Loreau 1998). In the presence of specialist herbivores, each plant is controlled by its own herbivore and is unaffected by the addition of other species, which lea ...
... the absence of herbivores, total plant biomass saturates at high diversity levels as has often been shown previously (Tilman et al. 1997; Loreau 1998). In the presence of specialist herbivores, each plant is controlled by its own herbivore and is unaffected by the addition of other species, which lea ...
Limnol. Oceanogr., 44(3, part 2), 1999, 950–97
... (e.g., Carpenter and Kitchell 1988; Power 1990). We therefore surmise that analysis of fish and plants provides a view of the best available impact data for Chesapeake Bay and elsewhere and includes taxa that are among the most likely to have significant, detectable impacts. For both analyses, we in ...
... (e.g., Carpenter and Kitchell 1988; Power 1990). We therefore surmise that analysis of fish and plants provides a view of the best available impact data for Chesapeake Bay and elsewhere and includes taxa that are among the most likely to have significant, detectable impacts. For both analyses, we in ...
Adults - Gopher Tortoise Day
... URTD is a disease that tortoises contract through contact with each other. Tortoises may not show symptoms and it is highly contagious. This is one reason why it is important that only professionals relocate tortoises to avoid introducing an infected tortoise into a healthy habitat. ...
... URTD is a disease that tortoises contract through contact with each other. Tortoises may not show symptoms and it is highly contagious. This is one reason why it is important that only professionals relocate tortoises to avoid introducing an infected tortoise into a healthy habitat. ...
Review Paper Biodiversity Effects on Aquatic Ecosystem Functioning
... A common criticism of biodiversity-ecosystem functioning experiments has been that most of them have used artificially assembled communities with random species loss. The results from such studies, it has been argued, are unlikely to provide us with any useful information about the functioning of re ...
... A common criticism of biodiversity-ecosystem functioning experiments has been that most of them have used artificially assembled communities with random species loss. The results from such studies, it has been argued, are unlikely to provide us with any useful information about the functioning of re ...
Eastern Foxsnake (Elaphe gloydi) - Registre public des espèces en
... Georgian Bay Coast use much more space than those in Essex-Kent: on average, Georgian Bay females disperse 3.5 times farther from their hibernacula. Predators of Eastern Foxsnakes include the larger birds of prey and carnivorous mammals such as raccoon and fisher. Small mammals and birds make up the ...
... Georgian Bay Coast use much more space than those in Essex-Kent: on average, Georgian Bay females disperse 3.5 times farther from their hibernacula. Predators of Eastern Foxsnakes include the larger birds of prey and carnivorous mammals such as raccoon and fisher. Small mammals and birds make up the ...
A Shingleback (Trachydosaurus rugosus) lizard with a whipper
... case (Funk 2006). When assessing this injury the autotomous nature of this species tail certainly aided regeneration, however it was also imperative that a minimum of a 1/3 of the original tail length was conserved (McCracken 1994) as the short tail of the shingleback contains fat reserves, which th ...
... case (Funk 2006). When assessing this injury the autotomous nature of this species tail certainly aided regeneration, however it was also imperative that a minimum of a 1/3 of the original tail length was conserved (McCracken 1994) as the short tail of the shingleback contains fat reserves, which th ...
Deep-sea ecosystem: a world of positive biodiversity – ecosystem
... to retain all the macrobenthic organisms (considered here as sensu lato, as reported in Baldrighi and ...
... to retain all the macrobenthic organisms (considered here as sensu lato, as reported in Baldrighi and ...
Phytosociological study of the Mpumalanga Province, South Africa
... the call for conservation is even greater. With the growing fear of gene loss through loss of species and a decrease in species richness, the consideration of ecologically based environmental planning and management is critical in order to preserve valuable natural assets. Studying and understanding ...
... the call for conservation is even greater. With the growing fear of gene loss through loss of species and a decrease in species richness, the consideration of ecologically based environmental planning and management is critical in order to preserve valuable natural assets. Studying and understanding ...
Document
... three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 wombat increase since 2003. This species is officially critically endangered acco ...
... three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 wombat increase since 2003. This species is officially critically endangered acco ...
Aquatic Antagonists: Indirect Nematocyst Envenomation and Acute
... Subsequent contact with the same or crossreacting substance may lead to a severe episode of acute allergic contact dermatitis. The Portuguese man-of-war, true jellyfish, sea anemone, true coral, and fire coral (a hydroid) all contain nematocysts within their tentacles. Portuguese men-of-war may have ...
... Subsequent contact with the same or crossreacting substance may lead to a severe episode of acute allergic contact dermatitis. The Portuguese man-of-war, true jellyfish, sea anemone, true coral, and fire coral (a hydroid) all contain nematocysts within their tentacles. Portuguese men-of-war may have ...
Biological Resources
... occurrence of a species of concern in a particular region is an indication that an additional population may occur at another location if habitat conditions are suitable. However, the absence of an occurrence in a particular location does not necessarily mean that special-status species are absent f ...
... occurrence of a species of concern in a particular region is an indication that an additional population may occur at another location if habitat conditions are suitable. However, the absence of an occurrence in a particular location does not necessarily mean that special-status species are absent f ...
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.