MECHANISMS INFLUENCING THE GROWTH, REPRODUCTION
... Baltic proper. These crustaceans account for most of the numbers and biomass of the macrofauna (larger than 1 mm), and are an important food for several fish species. I have studied the way in which the supply of food and the interactions between the macrofauna in such communities may affect populat ...
... Baltic proper. These crustaceans account for most of the numbers and biomass of the macrofauna (larger than 1 mm), and are an important food for several fish species. I have studied the way in which the supply of food and the interactions between the macrofauna in such communities may affect populat ...
Herbivore associated elicitor-induced defences are highly specific
... wounding alone. However two other HAEs tested, caeliferin A16:0 and inceptin, did not induce JA accumulation [6]. This suggests that the specificity of HAE-induced JA accumulation is probably mediated by specific receptorligand interactions, although the molecular mechanisms remain to be understood. ...
... wounding alone. However two other HAEs tested, caeliferin A16:0 and inceptin, did not induce JA accumulation [6]. This suggests that the specificity of HAE-induced JA accumulation is probably mediated by specific receptorligand interactions, although the molecular mechanisms remain to be understood. ...
Full-Text PDF
... Scandinavia would be classified either as “populated rainfed cropland” or as “populated forest”. Southern Scandinavia belongs to the nemoral (deciduous forest) zone in the south and the Cultural landscapes in northern Scandinavia, for example transhumance systems with summer transitional boreo-nemor ...
... Scandinavia would be classified either as “populated rainfed cropland” or as “populated forest”. Southern Scandinavia belongs to the nemoral (deciduous forest) zone in the south and the Cultural landscapes in northern Scandinavia, for example transhumance systems with summer transitional boreo-nemor ...
An Ecological Assessment of Insect Diversity at Organic Central
... think about and manage these lands. Approximately 40% of the planet’s land surface, or around half the habitable area, comprises agricultural landscapes (DeFries et al. 2004; Donald and Evans 2006). Croplands and pastures now rival forest cover to occupy the greatest extent of the world’s terrestria ...
... think about and manage these lands. Approximately 40% of the planet’s land surface, or around half the habitable area, comprises agricultural landscapes (DeFries et al. 2004; Donald and Evans 2006). Croplands and pastures now rival forest cover to occupy the greatest extent of the world’s terrestria ...
Feeding electivity of Pugettia gracilis, the graceful kelp crab
... or annual (incl. Nereocystis luetkeana) species of macroalgae after 2 years. These results suggest that other factors, such as grazing by other invertebrates, may play a large role in influencing community structure in the San Juan Channel. Invertebrate herbivores have been shown to play a crucial r ...
... or annual (incl. Nereocystis luetkeana) species of macroalgae after 2 years. These results suggest that other factors, such as grazing by other invertebrates, may play a large role in influencing community structure in the San Juan Channel. Invertebrate herbivores have been shown to play a crucial r ...
Rapid, landscape scale responses in riparian tundra
... Herder, Virtanen, & Roininen 2008; Pajunen 2009) and thus we expected deciduous shrubs to increase in abundance when released from grazing. Responses of other growth forms, as well as community level measures such as total live biomass, cover of standing dead plants, moss cover, species richness, an ...
... Herder, Virtanen, & Roininen 2008; Pajunen 2009) and thus we expected deciduous shrubs to increase in abundance when released from grazing. Responses of other growth forms, as well as community level measures such as total live biomass, cover of standing dead plants, moss cover, species richness, an ...
Air pollution and biodiversity
... plant species declined by only 25 per cent under the same conditions . Most affected species decline due to pollution, but a minority increase. Studies suggest that if a species is affected by air pollution at all, it is likely to decline. However, a minority of species thrive under polluted condit ...
... plant species declined by only 25 per cent under the same conditions . Most affected species decline due to pollution, but a minority increase. Studies suggest that if a species is affected by air pollution at all, it is likely to decline. However, a minority of species thrive under polluted condit ...
Environmental and spatial drivers of taxonomic, functional
... closed-canopy forest within 1 km of the center of each site. Sampling was not conducted during the presence of a moon that was ≥90% full due to reduced bat activity associated with high lunar illumination (Morrison, 1978) or during severe weather because of health risks to bats from exposure to low ...
... closed-canopy forest within 1 km of the center of each site. Sampling was not conducted during the presence of a moon that was ≥90% full due to reduced bat activity associated with high lunar illumination (Morrison, 1978) or during severe weather because of health risks to bats from exposure to low ...
BioMath Food Webs Student
... energy source for chemosynthesis. Factors that limit the success of primary producers are generally sunlight, water, or nutrient availability. These are physical factors that control a food web from the “bottom up.” On the other hand, certain biological factors can also control a food web from the “ ...
... energy source for chemosynthesis. Factors that limit the success of primary producers are generally sunlight, water, or nutrient availability. These are physical factors that control a food web from the “bottom up.” On the other hand, certain biological factors can also control a food web from the “ ...
here
... countries, and appeared in hundreds of radio and television productions. She has led more than 100 expeditions and logged more than 7000 hours underwater including leading the first team of women aquanauts during the Tektite Project in 1970, participating in ten saturation dives, most recently in Ju ...
... countries, and appeared in hundreds of radio and television productions. She has led more than 100 expeditions and logged more than 7000 hours underwater including leading the first team of women aquanauts during the Tektite Project in 1970, participating in ten saturation dives, most recently in Ju ...
The Landscape Ecology of Invasive Spread
... scale” ( Urban et al. 1987 ); and (3) the study of the “effect of pattern on process” (Turner 1989). The first two definitions imply that a landscape is an area of broad spatial extent that occurs at a level of organization above ecosystems and communities (but below the biome) in the traditional ec ...
... scale” ( Urban et al. 1987 ); and (3) the study of the “effect of pattern on process” (Turner 1989). The first two definitions imply that a landscape is an area of broad spatial extent that occurs at a level of organization above ecosystems and communities (but below the biome) in the traditional ec ...
EXPLAINING THE INVASIVE SUCCESS OF THE EASTERN MOSQUITOFISH (GAMBUSIA HOLBROOKI):
... photoperiod. How seasonality varies along latitudinal gradients is not well understood in freshwater ecosystems, despite being important to predict the effects of climate change. Since fish and most stream organisms are ectotherms, ambient temperatures significantly affect their physiological rates ...
... photoperiod. How seasonality varies along latitudinal gradients is not well understood in freshwater ecosystems, despite being important to predict the effects of climate change. Since fish and most stream organisms are ectotherms, ambient temperatures significantly affect their physiological rates ...
vamosi and schluter 2004
... We first analyzed ‘‘total armor’’ and subsequently individual armor elements. Total armor was calculated as the first principal component extracted from the covariance matrix of size-adjusted armor traits and ln-transformed number of lateral plates. The first principal component accounted for 79% of ...
... We first analyzed ‘‘total armor’’ and subsequently individual armor elements. Total armor was calculated as the first principal component extracted from the covariance matrix of size-adjusted armor traits and ln-transformed number of lateral plates. The first principal component accounted for 79% of ...
Untangling the roles of parasites in food webs with
... intermediate taxa), but when concomitant links were included, their roles were more constrained and different [18]. This study also found that concomitant links represent the most structurally diverse type of interaction. A common feature of earlier work on these questions is the indirect nature in ...
... intermediate taxa), but when concomitant links were included, their roles were more constrained and different [18]. This study also found that concomitant links represent the most structurally diverse type of interaction. A common feature of earlier work on these questions is the indirect nature in ...
Pronghorn Briefing Document for Sagebrush Strategy
... Assessment document and ultimately the Sagebrush Conservation Strategy is a briefing document about pronghorn and sagebrush available for review by participants prior to our Sagebrush Conservation Strategy Kickoff Meeting November 1-3. This briefing document should include a description of the relat ...
... Assessment document and ultimately the Sagebrush Conservation Strategy is a briefing document about pronghorn and sagebrush available for review by participants prior to our Sagebrush Conservation Strategy Kickoff Meeting November 1-3. This briefing document should include a description of the relat ...
The consumption of commercially valuable fish by pinnipeds in
... 1999). In Icelandic waters, one way seals affect the operation of the fishing industry is by becoming entangled in fishing gear. In the 2009 fishing year, the reported number of seals hunted or caught as by-catch was 154 harbour seals, 74 grey seals, 57 harp seals, one bearded seal, and 35 unidentif ...
... 1999). In Icelandic waters, one way seals affect the operation of the fishing industry is by becoming entangled in fishing gear. In the 2009 fishing year, the reported number of seals hunted or caught as by-catch was 154 harbour seals, 74 grey seals, 57 harp seals, one bearded seal, and 35 unidentif ...
Family Atherinidae
... Family Atherinidae Silversides Local species: o Atlantic Silverside (Menidia menidia) o Inland Silverside (Menidia beryllina) ...
... Family Atherinidae Silversides Local species: o Atlantic Silverside (Menidia menidia) o Inland Silverside (Menidia beryllina) ...
Mutualisms in a changing world: an evolutionary
... Is a broader crisis involving mutualism breakdown looming? Or are these isolated, atypical examples? Within the past few years, several reviews have examined the relationship between global change and ecological species interactions (e.g., Dunn et al. 2009; Yang & Rudolf 2010; Berg et al. 2010). In ...
... Is a broader crisis involving mutualism breakdown looming? Or are these isolated, atypical examples? Within the past few years, several reviews have examined the relationship between global change and ecological species interactions (e.g., Dunn et al. 2009; Yang & Rudolf 2010; Berg et al. 2010). In ...
Queensland Brigalow Belt Reptile Recovery Plan
... Some additional species not listed were identified by the team as having regional significance and as such are discussed under ‘Benefits to other species and ecological communities’ under Section 1.9. The grassland earless dragon Tympanocryptis pinguicolla is listed as ‘Endangered’ under the EPBC Ac ...
... Some additional species not listed were identified by the team as having regional significance and as such are discussed under ‘Benefits to other species and ecological communities’ under Section 1.9. The grassland earless dragon Tympanocryptis pinguicolla is listed as ‘Endangered’ under the EPBC Ac ...
Investigating a Competitive Two Species System that Produces
... due to its own shortcomings implies a short succession cycle. The succession example above indicates the competition vs. colonization tradeoff (Tilman, 1990). This theory accounts for different dominant characteristics under different conditions, depending on their most limited resource (Tilman, 199 ...
... due to its own shortcomings implies a short succession cycle. The succession example above indicates the competition vs. colonization tradeoff (Tilman, 1990). This theory accounts for different dominant characteristics under different conditions, depending on their most limited resource (Tilman, 199 ...
Genetic considerations in shellfish restoration
... It was therefore possible to draw some emergent lessons from the session. From the material presented it is clear that the field of shellfish habitat investigations is healthy with high quality science addressing issues of both a fundamental and applied nature. Such studies include consideration of ...
... It was therefore possible to draw some emergent lessons from the session. From the material presented it is clear that the field of shellfish habitat investigations is healthy with high quality science addressing issues of both a fundamental and applied nature. Such studies include consideration of ...
Blanding`s Turtle Fast Facts - The shape of a
... and hibernating. As these diverse habitats disappear it has a big impact on their population. Blanding’s turtles are primarily an aquatic species but are known to travel over large distances on dry land when searching for nesting sites. During the spring and summer Blanding’s turtles prefer shallow, ...
... and hibernating. As these diverse habitats disappear it has a big impact on their population. Blanding’s turtles are primarily an aquatic species but are known to travel over large distances on dry land when searching for nesting sites. During the spring and summer Blanding’s turtles prefer shallow, ...
Guideline on Pest Risk Analysis - GB non
... distinguished by examination of the last three pereopods, each of which has a serrated posterior edge, and by the absence of dorsal urosomal spines (Holmes 1975). In addition (and a character which is more easily discerned in the field), C. pseudogracilis walks upright, whereas G. pulex swim on thei ...
... distinguished by examination of the last three pereopods, each of which has a serrated posterior edge, and by the absence of dorsal urosomal spines (Holmes 1975). In addition (and a character which is more easily discerned in the field), C. pseudogracilis walks upright, whereas G. pulex swim on thei ...
univERsity oF copEnhAGEn
... Beech flowers in April/May and is wind pollinated. Seed production starts at an age of 40 to 60 years (Fanta 1995, van der Werf 1995). It produces seeds in mast years. A frequency of every 5-7 years is reported, although this is variable and seed production in between these mast years is not uncomm ...
... Beech flowers in April/May and is wind pollinated. Seed production starts at an age of 40 to 60 years (Fanta 1995, van der Werf 1995). It produces seeds in mast years. A frequency of every 5-7 years is reported, although this is variable and seed production in between these mast years is not uncomm ...
Spatial and seasonal patterns of habitat partitioning
... sampling, a substitute pool with similar characteristics was located. Hypotheses pertaining to inter- and intraspecific differences in fish distribution relative to the 5 tidepool characteristics (Table 1) were tested using both multiple regression and principal component analysis on SYSTAT (Macinto ...
... sampling, a substitute pool with similar characteristics was located. Hypotheses pertaining to inter- and intraspecific differences in fish distribution relative to the 5 tidepool characteristics (Table 1) were tested using both multiple regression and principal component analysis on SYSTAT (Macinto ...
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.