Arracacia xanthorrhiza Bancroft
... Arracacha (Arracacia xanthorrhiza Bancroft) is the only umbellifer domesticated in South America and still largely confined to that continent in its distribution. There are numerous domesticated umbellifers from Eurasia, many of which form edible roots or other subterraneous storage organs, such as ...
... Arracacha (Arracacia xanthorrhiza Bancroft) is the only umbellifer domesticated in South America and still largely confined to that continent in its distribution. There are numerous domesticated umbellifers from Eurasia, many of which form edible roots or other subterraneous storage organs, such as ...
Friend or foe? The relative role of earwigs as in citrus canopies
... orchards because they have been proven effective predators of several pests such as aphids, leafrollers and psyllids. However, as omnivores, earwigs can also have negative effects on plants by feeding on leaves, flowers and soft fruits. In this context, the main objective of this thesis was to study ...
... orchards because they have been proven effective predators of several pests such as aphids, leafrollers and psyllids. However, as omnivores, earwigs can also have negative effects on plants by feeding on leaves, flowers and soft fruits. In this context, the main objective of this thesis was to study ...
Interxylary phloem: Diversity and functions Sherwin Carlquist
... cambium. In this definition, interxylary phloem differs from intraxylary phloem, bicollateral bundles, pith bundles, and successive cambia. The inclusive but variously applied terms included phloem and internal phloem must be rejected. Histological aspects of interxylary phloem are reviewed and origi ...
... cambium. In this definition, interxylary phloem differs from intraxylary phloem, bicollateral bundles, pith bundles, and successive cambia. The inclusive but variously applied terms included phloem and internal phloem must be rejected. Histological aspects of interxylary phloem are reviewed and origi ...
ABUNDANCE, STRUCTURE AND USES OF BAOBAB
... CHAPTER 1: INTRODUCTION ............................................................................ 1 1.1 General Introduction .......................................................................................... 1 1.1.1 Study species ........................................................... ...
... CHAPTER 1: INTRODUCTION ............................................................................ 1 1.1 General Introduction .......................................................................................... 1 1.1.1 Study species ........................................................... ...
american museum - AMNH Library Digital Repository
... functional polypides and in which the operculum is modified into a mandible (avicularium) or seta (vibraculum). The basic zooid structure in cheilostomes includes the calcified side walls and calcified basal walls, forming a box filled with coelomic fluid, cells, and internal organs, and covered by ...
... functional polypides and in which the operculum is modified into a mandible (avicularium) or seta (vibraculum). The basic zooid structure in cheilostomes includes the calcified side walls and calcified basal walls, forming a box filled with coelomic fluid, cells, and internal organs, and covered by ...
POSITIVE INDIRECT EFFECTS OF REEF FISHES ON KELP
... role in giant kelp forest communities by preventing infestations of mesograzers that could severely impact or potentially destroy recovering kelp forests after extreme disturbance events. However, these trophic linkages, specifically the direct and indirect effects of fishes on the biomass of mesograz ...
... role in giant kelp forest communities by preventing infestations of mesograzers that could severely impact or potentially destroy recovering kelp forests after extreme disturbance events. However, these trophic linkages, specifically the direct and indirect effects of fishes on the biomass of mesograz ...
Differences in feeding adaptations in intertidal and
... their range) into the adjacent subtidal zone can be studied in the context of range boundaries, but on a much smaller spatial scale. At high tide, intertidal organisms experience many of the same conditions that subtidal organisms do, as the two groups are often only meters apart, and a wellestablis ...
... their range) into the adjacent subtidal zone can be studied in the context of range boundaries, but on a much smaller spatial scale. At high tide, intertidal organisms experience many of the same conditions that subtidal organisms do, as the two groups are often only meters apart, and a wellestablis ...
Ingredients for protist coexistence: competition, endosymbiosis and
... added to P. bursaria cultures at a concentration of 10 lg mL)1 (Tanaka et al. 2002) and they were cultured at 20 C under controlled light ⁄ dark cycle of 12.12 h. After 2 weeks, there remained some C. vulgaris cells within P. bursaria individuals, but we considered that P. bursaria was effectively ...
... added to P. bursaria cultures at a concentration of 10 lg mL)1 (Tanaka et al. 2002) and they were cultured at 20 C under controlled light ⁄ dark cycle of 12.12 h. After 2 weeks, there remained some C. vulgaris cells within P. bursaria individuals, but we considered that P. bursaria was effectively ...
Orconectes rusticus The goals of this document are to: State of Michigan’s
... center of the back side of the abdomen, black bands at the tips of their claws, and a gap in their claws when closed (Wetzel et al. 2004). While they share similar claws, the northern clearwater crayfish (O. propinquus) has a dark brown/black patch on the top of the tail section and lack the rusty c ...
... center of the back side of the abdomen, black bands at the tips of their claws, and a gap in their claws when closed (Wetzel et al. 2004). While they share similar claws, the northern clearwater crayfish (O. propinquus) has a dark brown/black patch on the top of the tail section and lack the rusty c ...
Flowering Ecology of a Box-Ironbark Eucalyptus Community.
... Red Box E. polyanthemos and Red Ironbark E. tricarpa. Specifically, the topics examined in this thesis are: (1) the floral character traits of species, and the extent to which these traits can be associated with syndromes of bird or insect pollination; (2) the timing, frequency, duration, intensity, ...
... Red Box E. polyanthemos and Red Ironbark E. tricarpa. Specifically, the topics examined in this thesis are: (1) the floral character traits of species, and the extent to which these traits can be associated with syndromes of bird or insect pollination; (2) the timing, frequency, duration, intensity, ...
EDGE EFFECT INTERACTIONS IN AN AFRICAN SAVANNA By
... We focus here on landscapes with only two patch types, although many real situations are even more complex. For example, Li et al. (2007) found that 60% of a forested landscape in Wisconsin, USA was within 120 m of three or more different patch types. Harper et al. (2007) detected edge interactions ...
... We focus here on landscapes with only two patch types, although many real situations are even more complex. For example, Li et al. (2007) found that 60% of a forested landscape in Wisconsin, USA was within 120 m of three or more different patch types. Harper et al. (2007) detected edge interactions ...
Factors Driving Herbivores Consumption and
... me iba a estudiar a Galicia. Gracias por apoyarme en cada paso y nunca perder la confianza en mí. A mi tío también tengo mucho que agradecerle pues nada de esto sería posible sin él, gracias por tu apoyo incondicional. A mis hermanos, Israel y Oihana, a quienes admiro profundamente, gracias por ser ...
... me iba a estudiar a Galicia. Gracias por apoyarme en cada paso y nunca perder la confianza en mí. A mi tío también tengo mucho que agradecerle pues nada de esto sería posible sin él, gracias por tu apoyo incondicional. A mis hermanos, Israel y Oihana, a quienes admiro profundamente, gracias por ser ...
Long-Distance Dispersal of Plants
... (7, 14). More recent studies have shown that long jumps available through rare LDD events are much more influential than the numerous small steps available through local dispersal in determining the spread of invasive species or range expansion of native species after climatic range shifts (6, 15). ...
... (7, 14). More recent studies have shown that long jumps available through rare LDD events are much more influential than the numerous small steps available through local dispersal in determining the spread of invasive species or range expansion of native species after climatic range shifts (6, 15). ...
Food Web Responses to Augmenting
... Basin. The insect was first detected in Florida citrus groves in 1967 and became a highly destructive citrus pest when the halogenated hydrocarbon soil insecticides were deregistered in the 1970s. Adult weevils feed and oviposit on expanding leaves of citrus and other plants. The neonate larvae fall ...
... Basin. The insect was first detected in Florida citrus groves in 1967 and became a highly destructive citrus pest when the halogenated hydrocarbon soil insecticides were deregistered in the 1970s. Adult weevils feed and oviposit on expanding leaves of citrus and other plants. The neonate larvae fall ...
MacNeil, Calum, Jaimie T. A. Dick, Mark P. Johnson, Melanie J
... using a 0.9-mm-mesh Surber-sampler (area, 0.0929 m2). All macroinvertebrates were preserved on-site in 70% ethanol. Gammarus adults were counted, and the presence or absence of P. mulleri was assessed by light microscopy (see MacNeil et al. 2003c; Terry et al. 2003). Juveniles (,6 mm long) were excl ...
... using a 0.9-mm-mesh Surber-sampler (area, 0.0929 m2). All macroinvertebrates were preserved on-site in 70% ethanol. Gammarus adults were counted, and the presence or absence of P. mulleri was assessed by light microscopy (see MacNeil et al. 2003c; Terry et al. 2003). Juveniles (,6 mm long) were excl ...
Invasion Dynamics of a Non-indigenous bivalve, Nuttallia obscurata
... and length-frequency analysis, growth modeling) and ecological interactions with native species (i.e. predator/prey preference feeding trials). Using these results, a matrix demographic model was developed to determine which life history stage contributes the most to varnish clam population growth. ...
... and length-frequency analysis, growth modeling) and ecological interactions with native species (i.e. predator/prey preference feeding trials). Using these results, a matrix demographic model was developed to determine which life history stage contributes the most to varnish clam population growth. ...
asian elephants are essential as seed dispersers in a
... challenge for researchers is thus to identify the characteristics that differentiate functional groups from each other for a given ecosystem function. One biological characteristic that may be relevant across ecosystem functions is size (e.g., Hansen and Galetti 2009). Simulation studies and field ...
... challenge for researchers is thus to identify the characteristics that differentiate functional groups from each other for a given ecosystem function. One biological characteristic that may be relevant across ecosystem functions is size (e.g., Hansen and Galetti 2009). Simulation studies and field ...
Sessions and Ruth (1990)
... 200 pm in diameter, were embedded primarily within the tissues at the base of the hind limbs (Figs. 3, 5, 6), but were also found elsewhere in the bodies of the two species of amphibian. In some parts of the body, especially around the cloaca1 region, the infestation is closely associated with irreg ...
... 200 pm in diameter, were embedded primarily within the tissues at the base of the hind limbs (Figs. 3, 5, 6), but were also found elsewhere in the bodies of the two species of amphibian. In some parts of the body, especially around the cloaca1 region, the infestation is closely associated with irreg ...
The Coral Reefs of Eilat – Past, Present and Future: Three Decades
... exceptionally crystal-clear surface waters (no river runoffs). The climate in the region is arid with an average net evaporation of 1 m3/day. Predominant northern winds enhance the evaporation. As a result, the Gulf ’s waters are extremely saline, ranging between 40 and 41.5 ‰. Temperature ranges fr ...
... exceptionally crystal-clear surface waters (no river runoffs). The climate in the region is arid with an average net evaporation of 1 m3/day. Predominant northern winds enhance the evaporation. As a result, the Gulf ’s waters are extremely saline, ranging between 40 and 41.5 ‰. Temperature ranges fr ...
Offense versus defense: responses of three morphological types of
... of the breaking strength and thickness of the carapace of each species. Intact clawed lobsters suffered higher mortality than either intact slipper or spiny lobsters after both 4 and 24 h. At 24 h, intact spiny lobsters also had higher mortality than intact and manipulated slipper lobsters. The inta ...
... of the breaking strength and thickness of the carapace of each species. Intact clawed lobsters suffered higher mortality than either intact slipper or spiny lobsters after both 4 and 24 h. At 24 h, intact spiny lobsters also had higher mortality than intact and manipulated slipper lobsters. The inta ...
FROST, BRUCE W. The role of grazing in nutrient
... bordering the open Gulf of Alaska. In Dabob Bay, Washington, the phytoplankton stock range seasonally over a factor of 67 (Fig. 1B). The same contrast, with less intensive and complete seasonal coverage, is evident between waters of the deep basin and the broad continental shelf in the eastern Berin ...
... bordering the open Gulf of Alaska. In Dabob Bay, Washington, the phytoplankton stock range seasonally over a factor of 67 (Fig. 1B). The same contrast, with less intensive and complete seasonal coverage, is evident between waters of the deep basin and the broad continental shelf in the eastern Berin ...
Palaeoecological perspectives in Dominican amber (PDF
... are reduced to just a dozen or so species confined to the Australasian region (Baroni Urbani & Wilson 1987). Possibly their large size is to blame or the wingless condition of the queens. The fact that the colonies were exposed on the forest floor could have made them susceptible to some external biot ...
... are reduced to just a dozen or so species confined to the Australasian region (Baroni Urbani & Wilson 1987). Possibly their large size is to blame or the wingless condition of the queens. The fact that the colonies were exposed on the forest floor could have made them susceptible to some external biot ...
Relative importance of recruitment and other causes of variation in
... The New England set consisted of four dependent variables (percent covers of barnacles, mussels, and two types of ma~.roalgae, Fucus spp. and Chondrus; Ascophyllum did not colonize these experiments) and 11 independent variables (recruitment; presence or absence of predation, herbivores, interspecif ...
... The New England set consisted of four dependent variables (percent covers of barnacles, mussels, and two types of ma~.roalgae, Fucus spp. and Chondrus; Ascophyllum did not colonize these experiments) and 11 independent variables (recruitment; presence or absence of predation, herbivores, interspecif ...
Direct and legacy effects of longterm elevated CO2 on fine root
... three species of oak, Q. myrtifolia was the most common, accounting for c. 77% of the oak biomass, whereas Q. geminata accounted for c. 17% and Q. chapmanii for 6% (Dijkstra et al., 2002). These oaks rely on stored below-ground resources for many years during stand development (Langley et al., 2002) ...
... three species of oak, Q. myrtifolia was the most common, accounting for c. 77% of the oak biomass, whereas Q. geminata accounted for c. 17% and Q. chapmanii for 6% (Dijkstra et al., 2002). These oaks rely on stored below-ground resources for many years during stand development (Langley et al., 2002) ...
stages and spatial scales of recruitment limitation in - Sortie-ND
... from 100 seed traps and several thousand mapped trees and seedlings from five southern Appalachian forest stands that span gradients in elevation and moisture. Fecundity (seed production per square centimeter of basal area) ranged over four orders of magnitude, from 100 cm2 basal area/yr (Carya, Cor ...
... from 100 seed traps and several thousand mapped trees and seedlings from five southern Appalachian forest stands that span gradients in elevation and moisture. Fecundity (seed production per square centimeter of basal area) ranged over four orders of magnitude, from 100 cm2 basal area/yr (Carya, Cor ...
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.