Interxylary phloem: Diversity and functions Sherwin Carlquist
... phloem occurs in only a relatively small number of families and species. Even within a genus such as Combretum or Strychnos, some species have interxylary phloem, others lack it, with no clear differences in habit or size of plant (van Vliet, 1979; Mennega, 1980). However, there is some correlation ...
... phloem occurs in only a relatively small number of families and species. Even within a genus such as Combretum or Strychnos, some species have interxylary phloem, others lack it, with no clear differences in habit or size of plant (van Vliet, 1979; Mennega, 1980). However, there is some correlation ...
mpa monitoring plan
... ongoing fishing activities inside MPAs that allow fishing and outside MPA boundaries. Such effects are detected by examining population trends before and after MPA implementation inside and outside MPAs and taking into account historical and current information on fishing activities. These methods a ...
... ongoing fishing activities inside MPAs that allow fishing and outside MPA boundaries. Such effects are detected by examining population trends before and after MPA implementation inside and outside MPAs and taking into account historical and current information on fishing activities. These methods a ...
A Strategy for Preserving Native Biodiversity in the Santa Cruz
... endemic and locally unique plants and animals in the sandhills are also very rare and the two sandhills plant communities— maritime coast range ponderosa pine forest and northern maritime chaparral— are listed as sensitive communities in the California Natural Diversity Database. Ongoing habitat con ...
... endemic and locally unique plants and animals in the sandhills are also very rare and the two sandhills plant communities— maritime coast range ponderosa pine forest and northern maritime chaparral— are listed as sensitive communities in the California Natural Diversity Database. Ongoing habitat con ...
Substrate specificity of epiphytic communities of diatoms
... active substrates, should have a direct influence on associated epiphyton. However, some studies favoured the neutral substrate hypothesis. Thus the relationship between host plant and epiphytic community remained unresolved. This Master´s thesis focused on the basal question that numerous previous ...
... active substrates, should have a direct influence on associated epiphyton. However, some studies favoured the neutral substrate hypothesis. Thus the relationship between host plant and epiphytic community remained unresolved. This Master´s thesis focused on the basal question that numerous previous ...
Document
... Abalone are also grown in Australia, New Zealand, and California. Abalone market prices are $5.00 - $10.00 a kilogram. ...
... Abalone are also grown in Australia, New Zealand, and California. Abalone market prices are $5.00 - $10.00 a kilogram. ...
The Kiwi - Nga Manu Nature Reserve
... The result is 5 distinct species of kiwi, with different varieties within a few of the species! ...
... The result is 5 distinct species of kiwi, with different varieties within a few of the species! ...
CRUSTACEAN ZOOPLANKTON SEDIMENTARY ASSEMBLAGES AND THE CALCIUM CONCENTRATION OF SOFTWATER ONTARIO LAKES
... Brian F. Cumming, and John P. Smol. For this manuscript I was responsible for the fossil zooplankton counts from Plastic Lake. I drafted Figures 2.1, 2.3 and 2.4 and was the primary author of the manuscript. Chapter 3 (Jeziorski et al., 2011, Aquatic Sciences) was co-authored with my supervisors Joh ...
... Brian F. Cumming, and John P. Smol. For this manuscript I was responsible for the fossil zooplankton counts from Plastic Lake. I drafted Figures 2.1, 2.3 and 2.4 and was the primary author of the manuscript. Chapter 3 (Jeziorski et al., 2011, Aquatic Sciences) was co-authored with my supervisors Joh ...
Allee effects in biological invasions
... When space is discrete, a patch with a population level below the Allee threshold can be next to a patch with a population level above the Allee threshold; when space is continuous, the population level would need to vary smoothly and pass through the Allee threshold. We will consider the important ...
... When space is discrete, a patch with a population level below the Allee threshold can be next to a patch with a population level above the Allee threshold; when space is continuous, the population level would need to vary smoothly and pass through the Allee threshold. We will consider the important ...
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 ...
Kingdom: Plantae - PDXScholar
... Kingdom: Monera............................................................................................................... 3 Division: Cyanophycota.................................................................................................. 3 Cyanobacteria .................................. ...
... Kingdom: Monera............................................................................................................... 3 Division: Cyanophycota.................................................................................................. 3 Cyanobacteria .................................. ...
chapters from report on field investigation
... discontinuous crowns. As trees gain size and age and put down large prop root supports, significant lateral as well as vertical growth occurs. This habit of spreading laterally has contributed to the nickname of ”walking trees”. The leaves are shiny, deep green on the top surface with a paler unders ...
... discontinuous crowns. As trees gain size and age and put down large prop root supports, significant lateral as well as vertical growth occurs. This habit of spreading laterally has contributed to the nickname of ”walking trees”. The leaves are shiny, deep green on the top surface with a paler unders ...
2. revegetation
... - $4200/ha for small areas to $600 - $2200/ha for large areas. These costs, however, do not include significant earthworks such as topsoil stripping and replacement. Historical costs for Main Roads’ revegetation work are not currently available but anecdotal information suggests they are higher than ...
... - $4200/ha for small areas to $600 - $2200/ha for large areas. These costs, however, do not include significant earthworks such as topsoil stripping and replacement. Historical costs for Main Roads’ revegetation work are not currently available but anecdotal information suggests they are higher than ...
GFNMS Vulnerability Assessment
... Atmospheric Administration, serves as the trustee for a system of 14 marine protected areas encompassing more than 170,000 square miles of ocean and Great Lakes waters. The 13 national marine sanctuaries and one marine national monument within the National Marine Sanctuary System represent areas of ...
... Atmospheric Administration, serves as the trustee for a system of 14 marine protected areas encompassing more than 170,000 square miles of ocean and Great Lakes waters. The 13 national marine sanctuaries and one marine national monument within the National Marine Sanctuary System represent areas of ...
The importance of predation, cannibalism and resources for
... survive in warmer waters (Blindow et al. 1984). Light intensity also affects the behaviour of crayfish and seems to have a subordinated role in regulating reproduction and moulting compared to temperature (Westin and Gydemo 1986). In an experiment conducted by Nyström (1994) it was shown that increa ...
... survive in warmer waters (Blindow et al. 1984). Light intensity also affects the behaviour of crayfish and seems to have a subordinated role in regulating reproduction and moulting compared to temperature (Westin and Gydemo 1986). In an experiment conducted by Nyström (1994) it was shown that increa ...
Ecology and Management of the Bull Kelp, Nereocystis luetkeana
... these localized and regional threats, kelp forests are vulnerable to climate change. The existence and tremendous productivity of these forests rely on the upwelling of deep offshore nutrient-rich waters. This upwelling process is driven by coastal winds that move surface waters offshore, driving t ...
... these localized and regional threats, kelp forests are vulnerable to climate change. The existence and tremendous productivity of these forests rely on the upwelling of deep offshore nutrient-rich waters. This upwelling process is driven by coastal winds that move surface waters offshore, driving t ...
long term study of competition between two co
... Pacifastacus leniusculus, in Sweden (e.g. ABRAHAMSSON, 1964 ; SVÄRDSON, 1965), it was decided in the late 1960s to introduce this species into Finland in order to revive crayfish production in the innumerable plague-waters. Even though P. leniusculus has been introduced into several thousand waters ...
... Pacifastacus leniusculus, in Sweden (e.g. ABRAHAMSSON, 1964 ; SVÄRDSON, 1965), it was decided in the late 1960s to introduce this species into Finland in order to revive crayfish production in the innumerable plague-waters. Even though P. leniusculus has been introduced into several thousand waters ...
Thresholds in Habitat Supply: A Review of the Literature
... such as reproduction and dispersal, which primarily influence species response to habitat change. The empirical forest studies, which are more valuable than are models as predictive tools, are relatively few, with none set in British Columbia. However, empirical evidence of threshold change in other ...
... such as reproduction and dispersal, which primarily influence species response to habitat change. The empirical forest studies, which are more valuable than are models as predictive tools, are relatively few, with none set in British Columbia. However, empirical evidence of threshold change in other ...
ECOLOGICAL RESTORATION AND SUSTAINABLE
... It is a great honour for me to welcome in the name of the organizing committee, at the 7th European Conference in Ecological Restoration, placed under the auspices of the International Society of Ecological Restoration, chapter Europe. It is also a real pride for us to have been chosen to organize t ...
... It is a great honour for me to welcome in the name of the organizing committee, at the 7th European Conference in Ecological Restoration, placed under the auspices of the International Society of Ecological Restoration, chapter Europe. It is also a real pride for us to have been chosen to organize t ...
2010 7th SER Conference of the Society for Ecological
... It is a great honour for me to welcome in the name of the organizing committee, at the 7th European Conference in Ecological Restoration, placed under the auspices of the International Society of Ecological Restoration, chapter Europe. It is also a real pride for us to have been chosen to organize t ...
... It is a great honour for me to welcome in the name of the organizing committee, at the 7th European Conference in Ecological Restoration, placed under the auspices of the International Society of Ecological Restoration, chapter Europe. It is also a real pride for us to have been chosen to organize t ...
The Influence of Interspecific Competition and Other Factors on the
... settled below mid-tide level. Therefore pieces of rock bearing Chthamtahis were removed from levels above M.H.W.N. and transplanted to and below M.T.L. A lhole was drilled through each piece; it was then fastened to the rock by a stainless steel screw driveni into a plastic screw anchor fitted ilnto ...
... settled below mid-tide level. Therefore pieces of rock bearing Chthamtahis were removed from levels above M.H.W.N. and transplanted to and below M.T.L. A lhole was drilled through each piece; it was then fastened to the rock by a stainless steel screw driveni into a plastic screw anchor fitted ilnto ...
DISTRIBUTION AND ECOLOGY OF LOWLAND PINE MARTEN
... The pine marten (Martes martes) has been long considered a prototypical forest-specialist, but recent studies carried out in western Europe have pointed out that the species is more generalist in terms of habitat preferences than previously reported. In the western plain of the River Po residual woo ...
... The pine marten (Martes martes) has been long considered a prototypical forest-specialist, but recent studies carried out in western Europe have pointed out that the species is more generalist in terms of habitat preferences than previously reported. In the western plain of the River Po residual woo ...
Ingredients for protist coexistence: competition, endosymbiosis and
... exploitation competition for the coexistence of P. bursaria with competitors, either C. striatum or T. pyriformis, we conducted two experiments (one for each competitor) with the same experimental design. It comprises seven treatments that were replicated four times: the three species (P. bursaria, ...
... exploitation competition for the coexistence of P. bursaria with competitors, either C. striatum or T. pyriformis, we conducted two experiments (one for each competitor) with the same experimental design. It comprises seven treatments that were replicated four times: the three species (P. bursaria, ...
The Ecological Role of a
... Figure 2.16: Correlation between the number of Patiriella spp. and chitons per cobble ............................................................................................ 27 Figure 2.17: Proportion of Patiriella spp. feeding ....................................... 28 Figure 2.18: Proportion ...
... Figure 2.16: Correlation between the number of Patiriella spp. and chitons per cobble ............................................................................................ 27 Figure 2.17: Proportion of Patiriella spp. feeding ....................................... 28 Figure 2.18: Proportion ...
Vernal Pool - Michigan Natural Features Inventory
... Unlike vernal pools, which occur in forested settings, seasonally inundated wetlands in open settings typically acquire well-developed and distinct floristic compositions and therefore are classified as one of several different non-forested wetland communities such as emergent marsh, southern wet me ...
... Unlike vernal pools, which occur in forested settings, seasonally inundated wetlands in open settings typically acquire well-developed and distinct floristic compositions and therefore are classified as one of several different non-forested wetland communities such as emergent marsh, southern wet me ...
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.