Variation in the feeding of four species of seabird on Machias Seal
... Early in the development of niche theory, the concept of niche was relatively simple as described by Gause’s principle, or the competitive exclusion principle (Gause 1934). Lack’s expansion on Gause’s observations was that two species cannot occupy the same niche in the same place without one specie ...
... Early in the development of niche theory, the concept of niche was relatively simple as described by Gause’s principle, or the competitive exclusion principle (Gause 1934). Lack’s expansion on Gause’s observations was that two species cannot occupy the same niche in the same place without one specie ...
harmful algal blooms
... The direct and indirect losses attributed to HAB events are staggering to the local areas in which they occur. A single outbreak of paralytic shellfish poisoning in the Northeast was estimated to cost $6 million (Shumway 1988). The 4- to 6-month red tide in North Carolina during 1987-1988 was estima ...
... The direct and indirect losses attributed to HAB events are staggering to the local areas in which they occur. A single outbreak of paralytic shellfish poisoning in the Northeast was estimated to cost $6 million (Shumway 1988). The 4- to 6-month red tide in North Carolina during 1987-1988 was estima ...
- Our Schools
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
... Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings ...
rocky shore snails as material for projects (with a key for their
... or live beneath the tidemarks. The key, overleaf, refers only to those species that grow larger than 3 mm and are regularly found living on rocky shores, in some part of the British Isles. If a specimen does not key out easily, reference should be made to Graham (1988) or to Hayward & Ryland (1990, ...
... or live beneath the tidemarks. The key, overleaf, refers only to those species that grow larger than 3 mm and are regularly found living on rocky shores, in some part of the British Isles. If a specimen does not key out easily, reference should be made to Graham (1988) or to Hayward & Ryland (1990, ...
Key - Scioly.org
... iv. primary consumer (1pt) v. secondary consumer (1pt) b) Calculation (1pt correct answer) using the 10% rule, 234 kJ available to pika à 23.4 kJ available to the pine marten à 2.34 kJ (2340 J) available for the bobcat 1pt for calculations or explanation c) Calculation(2pts) of energy available to t ...
... iv. primary consumer (1pt) v. secondary consumer (1pt) b) Calculation (1pt correct answer) using the 10% rule, 234 kJ available to pika à 23.4 kJ available to the pine marten à 2.34 kJ (2340 J) available for the bobcat 1pt for calculations or explanation c) Calculation(2pts) of energy available to t ...
Rocky Intertidal Zone
... salinity compared to the conditions that would prevail during a nighttime or an early morning low tide. Intertidal animals and seaweeds are exposed to rapid and sometimes extreme changes in temperature (fig. 8-1), one of the most important factors determining the distribution and physiological perfo ...
... salinity compared to the conditions that would prevail during a nighttime or an early morning low tide. Intertidal animals and seaweeds are exposed to rapid and sometimes extreme changes in temperature (fig. 8-1), one of the most important factors determining the distribution and physiological perfo ...
Native Bunchgrass and Invasive Weed Establishment in Low
... grass, B. tectorum was strongly limited by N and P, and concluded that coexistence of the two species was more likely at low nutrient levels. This is the assumption about B. tectorum and native grasses such as P. spicata as well, but real questions remain about whether the magnitude of any limitatio ...
... grass, B. tectorum was strongly limited by N and P, and concluded that coexistence of the two species was more likely at low nutrient levels. This is the assumption about B. tectorum and native grasses such as P. spicata as well, but real questions remain about whether the magnitude of any limitatio ...
2016 CURRENT ISSUE Invasive Species: A
... Early detection of non-native species should be based on a system of regular surveys to find newly established species. However, not all species will become established, and only a small percentage of those that do will become invasive, presenting threats to biodiversity and the economy. Thus, some ...
... Early detection of non-native species should be based on a system of regular surveys to find newly established species. However, not all species will become established, and only a small percentage of those that do will become invasive, presenting threats to biodiversity and the economy. Thus, some ...
Training Record for RIFA screening competency assessment
... in New Zealand and Xylosandrous crassiusculus, which is not established in New Zealand. The remaining specimens could not be identified beyond genus because of a lack of literature on Chinese scolytids. These genera include species found in both New Zealand and China. The genera identified have a wi ...
... in New Zealand and Xylosandrous crassiusculus, which is not established in New Zealand. The remaining specimens could not be identified beyond genus because of a lack of literature on Chinese scolytids. These genera include species found in both New Zealand and China. The genera identified have a wi ...
Winners always win: growth of a wide range of plant species from
... GmbH, Eschborn). The ambient level (450 ppm) was slightly higher than outside air due to elevated levels inside the office building. The high level (750 ppm) was achieved by adding fossil fuel derived CO2 from highpressure tanks to ambient air in the climate room. CO2 levels inside the chambers were ...
... GmbH, Eschborn). The ambient level (450 ppm) was slightly higher than outside air due to elevated levels inside the office building. The high level (750 ppm) was achieved by adding fossil fuel derived CO2 from highpressure tanks to ambient air in the climate room. CO2 levels inside the chambers were ...
Mycorrhizal Fungi in Successional Environments
... Furthermore, the early- and late-stage model does not incorporate the complex competitive and facilitative interactions among the soil-inhabiting microorganisms. The concepts of fungal adaptation and the resulting environmental tolerances have often been ignored in contemporary models of fungal succ ...
... Furthermore, the early- and late-stage model does not incorporate the complex competitive and facilitative interactions among the soil-inhabiting microorganisms. The concepts of fungal adaptation and the resulting environmental tolerances have often been ignored in contemporary models of fungal succ ...
The Vertebrate Fauna of Royal and Heathcote National Parks and
... beaches and rugged rocky ocean shores, to the mangrove-lined mudflats of Port Hacking, rainforests of the Hacking River valley, extensive heathlands with sweeping vistas and rugged sandstone cliff lines overshadowing the weaving path of the Woronora River, that elevate the species richness to such o ...
... beaches and rugged rocky ocean shores, to the mangrove-lined mudflats of Port Hacking, rainforests of the Hacking River valley, extensive heathlands with sweeping vistas and rugged sandstone cliff lines overshadowing the weaving path of the Woronora River, that elevate the species richness to such o ...
Ecological Entomology - University of Denver
... To verify the stage at which Austrophorocera kills its hosts, four host cocoons that were attacked by Austrophorocera as larvae in summer 2010 were carefully opened on 8 April 2011. Cocoons represented two hosts used in the current study, Euclea delphinii (n = 3) and Lithacodes fasciola (n = 1). If ...
... To verify the stage at which Austrophorocera kills its hosts, four host cocoons that were attacked by Austrophorocera as larvae in summer 2010 were carefully opened on 8 April 2011. Cocoons represented two hosts used in the current study, Euclea delphinii (n = 3) and Lithacodes fasciola (n = 1). If ...
BATS - Essential Members of the Southern Nevada Community
... Bats are not related to birds, nor are they mice. They are a unique group, and among all mammals, only bats can truly fly. Their group (order) name, Chiroptera, literally means "hand wing". Animals such as flying squirrels do not fly, but only glide from place to place. Fossil records indicate that ...
... Bats are not related to birds, nor are they mice. They are a unique group, and among all mammals, only bats can truly fly. Their group (order) name, Chiroptera, literally means "hand wing". Animals such as flying squirrels do not fly, but only glide from place to place. Fossil records indicate that ...
Trait-dependent modification of facilitation on cobble
... personal observations). The peat base mostly comprises compacted layers of dead cordgrass shoots and roots that slowly accrete over time, and within which the short shallow roots of living cordgrass can anchor. Living cordgrass root biomass forms a relatively minor component of peat, so while the pe ...
... personal observations). The peat base mostly comprises compacted layers of dead cordgrass shoots and roots that slowly accrete over time, and within which the short shallow roots of living cordgrass can anchor. Living cordgrass root biomass forms a relatively minor component of peat, so while the pe ...
Multispecies advice
... There are also other aspects of interactions related to these three stocks which are presently not included in the SMS model, the most important being: 1) the variation in spatial overlap between the three stocks, 2) inter- and intraspecific competition for food between and within the two clupeid st ...
... There are also other aspects of interactions related to these three stocks which are presently not included in the SMS model, the most important being: 1) the variation in spatial overlap between the three stocks, 2) inter- and intraspecific competition for food between and within the two clupeid st ...
The Return of the Wolf
... predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. Field methods included telemetry, snow-tracking, age determination, and camera moni ...
... predation and competition. I investigated the effects of wolves (Canis lupus) on prey species, competitors (including humans) and the scavenging guild after the recolonization by wolves of the Scandinavian Peninsula. Field methods included telemetry, snow-tracking, age determination, and camera moni ...
NOBANIS – Invasive Alien Species Fact Sheet Ondatra zibethicus
... According to Hoffmann (1958), O. zibethicus is host to a great number of parasites (41 species of trematodes, 22 species of cestodes, 27 species of nematodes, and others), notably various species capable of infesting humans, such as the dog tapeworm (Taenia hydatigena), the cat tapeworm (Taenia taen ...
... According to Hoffmann (1958), O. zibethicus is host to a great number of parasites (41 species of trematodes, 22 species of cestodes, 27 species of nematodes, and others), notably various species capable of infesting humans, such as the dog tapeworm (Taenia hydatigena), the cat tapeworm (Taenia taen ...
November 22, 2016 - Board of Supervisors Correspondence
... Commission is required to make one of two findings for a candidate species at the end of the CESA listing process; namely, whether the petitioned action is warranted or is not warranted. Here, with respect to Livermore tarplant, the Commission made the finding under Section 2075.5(e)(2) that the pet ...
... Commission is required to make one of two findings for a candidate species at the end of the CESA listing process; namely, whether the petitioned action is warranted or is not warranted. Here, with respect to Livermore tarplant, the Commission made the finding under Section 2075.5(e)(2) that the pet ...
Topic 1
... Which of the following is NOT one of the characteristics of ALL living things? A. Growth and development B. Ability to move from one place to another C. Reproduction D. Respond to stimuli ...
... Which of the following is NOT one of the characteristics of ALL living things? A. Growth and development B. Ability to move from one place to another C. Reproduction D. Respond to stimuli ...
Philosophy of Ecology - sikkim university library
... even the recent fibrillations of the stock market—are all ecological or have a large ecological component, and it is fitting that philosophers turn their attention to understanding the science of ecology and its huge implications for the human project. Numerous excellent collections on the philosoph ...
... even the recent fibrillations of the stock market—are all ecological or have a large ecological component, and it is fitting that philosophers turn their attention to understanding the science of ecology and its huge implications for the human project. Numerous excellent collections on the philosoph ...
SPECIES AND HABITAT ASSESSMENTS AND CONSERVATION
... found it necessary to address the specific needs of terrestrial and aquatic species separately within the Plan. However, we do not wish to perpetuate the notion that aquatic and terrestrial systems should be thought of as separate and disconnected entities; these systems are highly connected and are ...
... found it necessary to address the specific needs of terrestrial and aquatic species separately within the Plan. However, we do not wish to perpetuate the notion that aquatic and terrestrial systems should be thought of as separate and disconnected entities; these systems are highly connected and are ...
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.