Blue gum Psyllid
... If population numbers are very high new shoots may become distorted and deformed but, in general, free-living psyllids do not seem to have any serious effect on young trees and do little damage despite their abundance and the production of large amounts of waxy secretions around the growing shoots. ...
... If population numbers are very high new shoots may become distorted and deformed but, in general, free-living psyllids do not seem to have any serious effect on young trees and do little damage despite their abundance and the production of large amounts of waxy secretions around the growing shoots. ...
Forest disturbance and pollination of a keystone species in a
... that visit Cullenia exarillata are in low density because of severe hunting and forest degradation and fragmentation but nothing is known on how this affects survival of Cullenia exarillata. Seed predation could restrict recruitment of the species especially when there are few fruits in the forest. ...
... that visit Cullenia exarillata are in low density because of severe hunting and forest degradation and fragmentation but nothing is known on how this affects survival of Cullenia exarillata. Seed predation could restrict recruitment of the species especially when there are few fruits in the forest. ...
Interspecific interaction: The analysis of complex structures in
... the values of agent C. helgolandicus and reagent P. pileus, respectively. Some problems in the experiments with large P. pileus have been due to the small size of the container compared to the catching apparatus of the ctenophore. In addition to the interspecific interactions of the two populations ...
... the values of agent C. helgolandicus and reagent P. pileus, respectively. Some problems in the experiments with large P. pileus have been due to the small size of the container compared to the catching apparatus of the ctenophore. In addition to the interspecific interactions of the two populations ...
Primary succession on Mount St. Helens, with reference to Surtsey
... ment on the Ridge was related to elevation (del Moral 2007). Lupinus cover exploded in the lowest plots (1989, 1994, 1999), then declined. By 2008, there was a steady decline of cover with elevation. Dispersal Primary succession requires colonization, establishment, development and biotic interactio ...
... ment on the Ridge was related to elevation (del Moral 2007). Lupinus cover exploded in the lowest plots (1989, 1994, 1999), then declined. By 2008, there was a steady decline of cover with elevation. Dispersal Primary succession requires colonization, establishment, development and biotic interactio ...
Annelids are segmented worms
... • Some benthic polychaetes crawl around on the ocean bottom and are covered with large protective scales. ...
... • Some benthic polychaetes crawl around on the ocean bottom and are covered with large protective scales. ...
Peter J. Mumby, , 98 (2006); DOI: 10.1126/science.1121129
... At the scale of reefs within an island system (tens of kilometers), the community structure of parrotfishes showed significant variation only between the reserve and its immediate nonreserve reefs (analysis of similarities, R 0 0.29, P G 0.05). Several parrotfish species exhibited significant differ ...
... At the scale of reefs within an island system (tens of kilometers), the community structure of parrotfishes showed significant variation only between the reserve and its immediate nonreserve reefs (analysis of similarities, R 0 0.29, P G 0.05). Several parrotfish species exhibited significant differ ...
Advantageous indirect interactions in systems of competition
... decrease the per capita growth rate per unit time of Sj by an amount cjkDNk. We now leave this two-species abstraction and, while restricting the study to a near-equilibrium situation, consider the effect of Sk on Sj when both are situated in the M-species system under study. This requires us to con ...
... decrease the per capita growth rate per unit time of Sj by an amount cjkDNk. We now leave this two-species abstraction and, while restricting the study to a near-equilibrium situation, consider the effect of Sk on Sj when both are situated in the M-species system under study. This requires us to con ...
seasonality in an evergreen tropical mountain rainforest in southern
... but to the best of our knowledge there is only one study of phenological aspects of a perhumid tropical mountain rainforest. Koptur et al. (1988) have investigated the phenology of bushes and treelets in Costa Rica in an altitudinal range between 1300 and 1650 m a.s.l. Mountain forests differ from l ...
... but to the best of our knowledge there is only one study of phenological aspects of a perhumid tropical mountain rainforest. Koptur et al. (1988) have investigated the phenology of bushes and treelets in Costa Rica in an altitudinal range between 1300 and 1650 m a.s.l. Mountain forests differ from l ...
Molluscan Studies - Oxford Academic
... host shrimp in some way, the host shrimp may construct the burrow to include the bivalves inside it. The type specimen of A. coralliophila was collected in the Philippines (Adams & Reeve, 1848) and it has since been recorded in various places in the Indo-West Pacific, from the Red Sea to Borneo (Hube ...
... host shrimp in some way, the host shrimp may construct the burrow to include the bivalves inside it. The type specimen of A. coralliophila was collected in the Philippines (Adams & Reeve, 1848) and it has since been recorded in various places in the Indo-West Pacific, from the Red Sea to Borneo (Hube ...
Slide 1
... analyses showed that change in leaf area per plant had a significant interaction between site and treatment (p<0.05) but no significant differences for either main effect. The change in leaf area per leaf showed that slug exclusion plots were significantly different from the none (p<0.005), inclusio ...
... analyses showed that change in leaf area per plant had a significant interaction between site and treatment (p<0.05) but no significant differences for either main effect. The change in leaf area per leaf showed that slug exclusion plots were significantly different from the none (p<0.005), inclusio ...
File - Ms.Katzoff AP Environmental Science AP Human
... 1. Life is sustained by the flow of energy from the sun through the biosphere, the cycling of nutrients within the biosphere, and gravity. 2. Some organisms produce the nutrients they need, others survive by consuming other organisms, and some recycle nutrients back to producer organisms. 3. Human a ...
... 1. Life is sustained by the flow of energy from the sun through the biosphere, the cycling of nutrients within the biosphere, and gravity. 2. Some organisms produce the nutrients they need, others survive by consuming other organisms, and some recycle nutrients back to producer organisms. 3. Human a ...
Phloem-feeding specialists sharing a host tree: resource partitioning
... types of trees (Table 2). When it does (rarely) occur on normal-sized trees, its galls are found on low branches, less than 1 m above ground, where few other galls occur (Table 2). Final galls of F. marginata tend to appear later than other species (Inbar, unpubl.) which may mean temporal separation ...
... types of trees (Table 2). When it does (rarely) occur on normal-sized trees, its galls are found on low branches, less than 1 m above ground, where few other galls occur (Table 2). Final galls of F. marginata tend to appear later than other species (Inbar, unpubl.) which may mean temporal separation ...
- International Reptile Conservation Foundation
... swimmer that feeds on insects and their larvae, arachnids, myriapods, mollusks, crustaceans, protozoans, and vegetable matter (Vergara 1992; Fong et al. 1996; Ponce de León and Rodríguez 2013). However, until now, no vertebrates had been reported as prey of this species. The stream where we observ ...
... swimmer that feeds on insects and their larvae, arachnids, myriapods, mollusks, crustaceans, protozoans, and vegetable matter (Vergara 1992; Fong et al. 1996; Ponce de León and Rodríguez 2013). However, until now, no vertebrates had been reported as prey of this species. The stream where we observ ...
Plant coexistence in coastal heaths: post
... transects described in Myerscough et al. (1995) were selected and in each transect plots on two ridges (dry heath) and two slopes (wet heath) were sampled (Fig. 1). Both the transects and plots were selected on the basis of being representative of the floristic variation found on the land system (se ...
... transects described in Myerscough et al. (1995) were selected and in each transect plots on two ridges (dry heath) and two slopes (wet heath) were sampled (Fig. 1). Both the transects and plots were selected on the basis of being representative of the floristic variation found on the land system (se ...
as a PDF
... female wasps arrive at fig trees when they are in flower. Figs (or, more properly, syconia) are hollow multiple receptacles lined with numerous male and female florets. At the time the wasps arrive, only the female florets are receptive. The wasps enter the fig via a bract-covered pore, often becomi ...
... female wasps arrive at fig trees when they are in flower. Figs (or, more properly, syconia) are hollow multiple receptacles lined with numerous male and female florets. At the time the wasps arrive, only the female florets are receptive. The wasps enter the fig via a bract-covered pore, often becomi ...
eports - WSU Entomology - Washington State University
... food preferences, species can be ‘‘trained’’ to use the same or different resources (Finke and Snyder 2008). Another possibility exists when species differ in where they forage in the environment, such that each species can only access resources available in the habitat it frequents. Here, habitat c ...
... food preferences, species can be ‘‘trained’’ to use the same or different resources (Finke and Snyder 2008). Another possibility exists when species differ in where they forage in the environment, such that each species can only access resources available in the habitat it frequents. Here, habitat c ...
Enlarge - Grand Valley State University
... Huemmrich, K.F., J.A. Gamon, C.E. Tweedie, et al. 2010. Remote sensing of tundra gross ecosystem productivity and light use efficiency under varying temperature and moisture conditions. Remote Sensing of Environment 114(3):481-489. Oberbauer, S.F., C.E. Tweedie, J.M. Welker, et al. 2007. Carbon diox ...
... Huemmrich, K.F., J.A. Gamon, C.E. Tweedie, et al. 2010. Remote sensing of tundra gross ecosystem productivity and light use efficiency under varying temperature and moisture conditions. Remote Sensing of Environment 114(3):481-489. Oberbauer, S.F., C.E. Tweedie, J.M. Welker, et al. 2007. Carbon diox ...
Mutualisms - Biology Courses Server
... so arouses male bumblebees that they prefer to mate with the flower even in the presence of real female bees. While the male tries to copulate with the flower, it picks up and transfers pollen between flowers. • Bumblebees in other systems bite through the petals at the base of flowers and rob the p ...
... so arouses male bumblebees that they prefer to mate with the flower even in the presence of real female bees. While the male tries to copulate with the flower, it picks up and transfers pollen between flowers. • Bumblebees in other systems bite through the petals at the base of flowers and rob the p ...
A new flatworm (Platyhelminthes: Polycladida) which mimics a
... a reticulum of narrow black lines. Furthermore, the rhinophores (resembling the pseudotentacles in Pseudoceros) are black in colour. Gills in phyllidiid nudibranchs are found ventro-laterally and hence the only obvious distinguishing characteristic between this nudibranch and this flatworm, in situ, ...
... a reticulum of narrow black lines. Furthermore, the rhinophores (resembling the pseudotentacles in Pseudoceros) are black in colour. Gills in phyllidiid nudibranchs are found ventro-laterally and hence the only obvious distinguishing characteristic between this nudibranch and this flatworm, in situ, ...
Traveling wave solutions of a reaction diffusion model for competing
... where t is time and f(u) is a fitness function. The sign and monotonicity properties of the fitness function determine the species density-dependent growth characteristics. At large densities, crowding tends to cause a decline in the population so the fitness function f(u) < 0 at larger u. Some species ...
... where t is time and f(u) is a fitness function. The sign and monotonicity properties of the fitness function determine the species density-dependent growth characteristics. At large densities, crowding tends to cause a decline in the population so the fitness function f(u) < 0 at larger u. Some species ...
Reference 1
... Reference 2: pg 5001 ln 12: much is made of the fact that S. grandis is a predominant species of the steppe, but relative contribution in the study was only 1 - 8 %. Are these sites, and the results, therefore really representative? Analysis from more than one species / functional group could be ben ...
... Reference 2: pg 5001 ln 12: much is made of the fact that S. grandis is a predominant species of the steppe, but relative contribution in the study was only 1 - 8 %. Are these sites, and the results, therefore really representative? Analysis from more than one species / functional group could be ben ...
Feeding habits of non-ocypodid crabs from two mangrove forests in
... al. (1997) who noted through visual observation that every mangrove leaf (of different tree species) in the vicinity of N. meinerti’s home range was removed from the mangrove floor in a very short time. Metopograpsus oceanicus, M. thukuhar and Selatiume longatum are also leaf consumers, but they see ...
... al. (1997) who noted through visual observation that every mangrove leaf (of different tree species) in the vicinity of N. meinerti’s home range was removed from the mangrove floor in a very short time. Metopograpsus oceanicus, M. thukuhar and Selatiume longatum are also leaf consumers, but they see ...
Gastropoda Cypraeoidea
... deposition of shell teeth, one of the most typical features of cowries (Fig. 12). Cowries have no operculum, so teeth are an alternative strategy to make the aperture as narrow as possible, to prevent access to soft parts when the mollusk is retracted. Soon after teeth formation, the shell stops gro ...
... deposition of shell teeth, one of the most typical features of cowries (Fig. 12). Cowries have no operculum, so teeth are an alternative strategy to make the aperture as narrow as possible, to prevent access to soft parts when the mollusk is retracted. Soon after teeth formation, the shell stops gro ...
nordmanni (Branchiopoda: Onychopoda), in the Inland
... Fig. 3. Successive processes of molting and neonate-release of a tethered parthenogenetic female of Pseudevadne tergestina, recorded by infrared-light video microscopy under complete darkness. September 12, 1992. A: female (Stage IV) just before molting with 3 advanced embryos in the carapace; 13: m ...
... Fig. 3. Successive processes of molting and neonate-release of a tethered parthenogenetic female of Pseudevadne tergestina, recorded by infrared-light video microscopy under complete darkness. September 12, 1992. A: female (Stage IV) just before molting with 3 advanced embryos in the carapace; 13: m ...
Ficus rubiginosa
Ficus rubiginosa, the rusty fig, Port Jackson fig, or little-leaf fig (damun in the Sydney language) is a species of flowering plant in the family Moraceae that is native to eastern Australia. It is a banyan of the genus Ficus which contains around 750 species worldwide in warm climates, including the common fig (Ficus carica). Ficus rubiginosa can grow to 30 m (100 ft) high and nearly as wide with a buttressed trunk, and glossy green leaves.