Ecology (Ch. 2-5): TEST PRACTICE Multiple Choice Identify the
... ____ 59. Which of the following is characteristic of the photic zone of the ocean but not the aphotic zone? a. fish c. bacteria b. tides d. photosynthesis ____ 60. Organisms with light-producing body parts would most likely be found in a. the deep-water zone of lakes. c. open ocean surfaces. b. shal ...
... ____ 59. Which of the following is characteristic of the photic zone of the ocean but not the aphotic zone? a. fish c. bacteria b. tides d. photosynthesis ____ 60. Organisms with light-producing body parts would most likely be found in a. the deep-water zone of lakes. c. open ocean surfaces. b. shal ...
The predator-prey power law: Biomass scaling across terrestrial and
... reported population density in 23 protected areas at different points in time (section M2A). These counts cover the dominant species of large carnivores (wild dog, cheetah, leopard, hyena, and lion) and their characteristic herbivore prey [5 to 500 kg; 27 species (50, 51)]. The population density (n ...
... reported population density in 23 protected areas at different points in time (section M2A). These counts cover the dominant species of large carnivores (wild dog, cheetah, leopard, hyena, and lion) and their characteristic herbivore prey [5 to 500 kg; 27 species (50, 51)]. The population density (n ...
The behavioural trade-off of Margaritifera margaritifera with regard to
... controlled temperature levels. The juveniles were fed a standardized nutrient mixture and standardized filtered mud at two day intervals (see appendix I for mussel-feed details). The river Oselven was also used to collect three co-existing predators, namely • Leeches (Glossiphonia complanata) • Cadd ...
... controlled temperature levels. The juveniles were fed a standardized nutrient mixture and standardized filtered mud at two day intervals (see appendix I for mussel-feed details). The river Oselven was also used to collect three co-existing predators, namely • Leeches (Glossiphonia complanata) • Cadd ...
Hatton etal. 2015. Science
... level (8, 41, 42, 49) (appendix S1). Last, k < 1 indicates that the pyramid becomes relatively more bottom-heavy at higher biomass (Fig. 2). We show that the shape of the predator-prey biomass pyramid becomes systematically more bottom-heavy as pyramid size increases along a biomass gradient. Simila ...
... level (8, 41, 42, 49) (appendix S1). Last, k < 1 indicates that the pyramid becomes relatively more bottom-heavy at higher biomass (Fig. 2). We show that the shape of the predator-prey biomass pyramid becomes systematically more bottom-heavy as pyramid size increases along a biomass gradient. Simila ...
predator accelerated replacement
... 1974, Stein 1977, Sih 1984). Where alternative prey are available, predators maximize their energy gain by preying selectively on species that are easiest to capture and consume while avoiding prey species that are more difficult. Simply stated, predators maximize fitness by being selective (Brooks ...
... 1974, Stein 1977, Sih 1984). Where alternative prey are available, predators maximize their energy gain by preying selectively on species that are easiest to capture and consume while avoiding prey species that are more difficult. Simply stated, predators maximize fitness by being selective (Brooks ...
harmful algal blooms
... species that causes it. All HABs were once referred to as "red tides" because of the color imparted by algae suspended in the water, but the description has since become a misnomer because not all HABs are red (some may be brown, yellow, or green), and some may not discolor the water at all. Color i ...
... species that causes it. All HABs were once referred to as "red tides" because of the color imparted by algae suspended in the water, but the description has since become a misnomer because not all HABs are red (some may be brown, yellow, or green), and some may not discolor the water at all. Color i ...
Draft SA LEB Fisheries ESD risk assessment report
... improve the efficiency and quality of performance reporting against a range of public and private sector accountabilities (such as the EPBC Act Strategic Assessment process, or industry business planning initiatives). ...
... improve the efficiency and quality of performance reporting against a range of public and private sector accountabilities (such as the EPBC Act Strategic Assessment process, or industry business planning initiatives). ...
C:\RZ\LIS Food Webs\LIS FOOD WEBS FINAL REPORT\Zajac et al
... comprised of simple food chains, but rather they are comprised of food webs with a variety of species at different trophic levels and variable connections within and among trophic levels. The ecosystem itself is comprised of the food web, or food webs (see below), and the various abiotic factors tha ...
... comprised of simple food chains, but rather they are comprised of food webs with a variety of species at different trophic levels and variable connections within and among trophic levels. The ecosystem itself is comprised of the food web, or food webs (see below), and the various abiotic factors tha ...
Rocky Intertidal Zone
... water or at least partly exposed to air although usually in a moist location. The daily fluctuations in water level combined with time of day can result in rapid and large changes in physical and chemical features of tidepools. During an afternoon low tide on a spring tide series, an isolated pool h ...
... water or at least partly exposed to air although usually in a moist location. The daily fluctuations in water level combined with time of day can result in rapid and large changes in physical and chemical features of tidepools. During an afternoon low tide on a spring tide series, an isolated pool h ...
Long-term trends in juvenile flatfish indicate a
... Next, for 0-, I- and II-groups, total annual food intake was determined by first fitting a polynomial through the DFI, and solving the function by integration over the growing season (March–October). Macrozoobenthic prey items. Since 1975, the Balgzand macrozoobenthos community has been consistently ...
... Next, for 0-, I- and II-groups, total annual food intake was determined by first fitting a polynomial through the DFI, and solving the function by integration over the growing season (March–October). Macrozoobenthic prey items. Since 1975, the Balgzand macrozoobenthos community has been consistently ...
Factors in Long-Term Algal Composition of Cayman Reefs
... residing there. Much of what we currently know about reefs came with the advent of SCUBA which provided the general public and researchers with better access to the underwater world. As SCUBA is a historically recent development reef ecology is still a budding field with much left to learn. Aside fr ...
... residing there. Much of what we currently know about reefs came with the advent of SCUBA which provided the general public and researchers with better access to the underwater world. As SCUBA is a historically recent development reef ecology is still a budding field with much left to learn. Aside fr ...
pdf here
... The potential of recolonizing large carnivores to create behaviourally mediated trophic cascades in human-dominated landscapes will be strongly modified by the effects of humans on the behaviour of large carnivores and their prey. These include indirect effects through changes in the landscape in wh ...
... The potential of recolonizing large carnivores to create behaviourally mediated trophic cascades in human-dominated landscapes will be strongly modified by the effects of humans on the behaviour of large carnivores and their prey. These include indirect effects through changes in the landscape in wh ...
REV_ISS_WEB_ELE_12620_19
... log(pij + 0.01), where pij is the shared proportional distance of species i and j on the tree. w is then calculated by dividing the mean pairwise phylogenetically corrected distance between all taxa in the study by the mean pairwise distance between the ‘focal’ taxa only. The larger the mean phenoty ...
... log(pij + 0.01), where pij is the shared proportional distance of species i and j on the tree. w is then calculated by dividing the mean pairwise phylogenetically corrected distance between all taxa in the study by the mean pairwise distance between the ‘focal’ taxa only. The larger the mean phenoty ...
Banded Killifish (Fundulus diaphanus)
... Existing Protection or Other Status The Newfoundland populations of Banded Killifish are currently listed as a species of special concern by the Committee on the Status of Endangered Wildlife in Canada. In addition, Fundulus diaphanus is one of 20 species protected under the Newfoundland and Labrado ...
... Existing Protection or Other Status The Newfoundland populations of Banded Killifish are currently listed as a species of special concern by the Committee on the Status of Endangered Wildlife in Canada. In addition, Fundulus diaphanus is one of 20 species protected under the Newfoundland and Labrado ...
Volume 2, Chapter 4-2 - Digital Commons @ Michigan Tech
... (Figure 14). This rapid proboscis also out-paces its Collembola and other prey, permitting the worm to capture its dinner. This species comes in three very distinct color varieties (Mesibov 1994), most likely permitting it to survive in its diverse habitat where different predators may lurk in diffe ...
... (Figure 14). This rapid proboscis also out-paces its Collembola and other prey, permitting the worm to capture its dinner. This species comes in three very distinct color varieties (Mesibov 1994), most likely permitting it to survive in its diverse habitat where different predators may lurk in diffe ...
long-term prospects for certified organic aquaculture products
... of December, 2001, The USDA is still undecided about whether it will grant these producers the much needed opportunity to call their product organic after October, 2002. In the absence of these international/regional standards, it has been left to individual member states and private/non-governmenta ...
... of December, 2001, The USDA is still undecided about whether it will grant these producers the much needed opportunity to call their product organic after October, 2002. In the absence of these international/regional standards, it has been left to individual member states and private/non-governmenta ...
Similar biotic factors affect early establishment and abundance of an
... The availability of resources can both positively and negatively influence the success of exotic species across stages of invasion and spatial scales (Davis et al. 2000; Hobbs and Atkins 1988; Huenneke et al. 1990; Wedin and Tilman 1996). The proposed mechanism for the positive effects of resources ...
... The availability of resources can both positively and negatively influence the success of exotic species across stages of invasion and spatial scales (Davis et al. 2000; Hobbs and Atkins 1988; Huenneke et al. 1990; Wedin and Tilman 1996). The proposed mechanism for the positive effects of resources ...
Similar biotic factors affect early establishment and abundance of an
... The availability of resources can both positively and negatively influence the success of exotic species across stages of invasion and spatial scales (Davis et al. 2000; Hobbs and Atkins 1988; Huenneke et al. 1990; Wedin and Tilman 1996). The proposed mechanism for the positive effects of resources ...
... The availability of resources can both positively and negatively influence the success of exotic species across stages of invasion and spatial scales (Davis et al. 2000; Hobbs and Atkins 1988; Huenneke et al. 1990; Wedin and Tilman 1996). The proposed mechanism for the positive effects of resources ...
Invasive grass carp (
... releasing copious amounts of eggs. Their eggs are semi-pelagic and must remain suspended until they hatch, which happens approximately one day after spawning (Stanley 1976, 1978). Temperature plays a large role in the timing of hatching and temperatures below 68°F during egg incubation increases the ...
... releasing copious amounts of eggs. Their eggs are semi-pelagic and must remain suspended until they hatch, which happens approximately one day after spawning (Stanley 1976, 1978). Temperature plays a large role in the timing of hatching and temperatures below 68°F during egg incubation increases the ...
In search of operational trophospecies in a tropical aquatic ,food web
... tropical aquaticfood web - Oikos87: 327-340. Aggregations of biological s~ on the basis of trophic similarity (trophospecies) are the basic units of study m food web and ecosystemresearch, yet little attention has been devoted to articulating objective protocols for defining such aggregations. This ...
... tropical aquaticfood web - Oikos87: 327-340. Aggregations of biological s~ on the basis of trophic similarity (trophospecies) are the basic units of study m food web and ecosystemresearch, yet little attention has been devoted to articulating objective protocols for defining such aggregations. This ...
Cohort Dynamics Give Rise to Alternative Stable Community States.
... water, marine, and terrestrial environments (Folke et al. 2004). For example, overfishing in marine ecosystems has in several cases led to sudden shifts in ecosystem state that may hamper the reestablishment of large predatory fish, such as collapsed cod populations in the northwest Atlantic and Bal ...
... water, marine, and terrestrial environments (Folke et al. 2004). For example, overfishing in marine ecosystems has in several cases led to sudden shifts in ecosystem state that may hamper the reestablishment of large predatory fish, such as collapsed cod populations in the northwest Atlantic and Bal ...
Ecology jeopardy
... • ANSWER: This species is a large animal or other organism on which many other species depend and are very similar to keystone species, but these are usually migratory and need a large habitat. • QUESTION: What are umbrella species? ...
... • ANSWER: This species is a large animal or other organism on which many other species depend and are very similar to keystone species, but these are usually migratory and need a large habitat. • QUESTION: What are umbrella species? ...
ANSWER - Thomas C. Cario Middle School
... • ANSWER: This species is a large animal or other organism on which many other species depend and are very similar to keystone species, but these are usually migratory and need a large habitat. • QUESTION: What are umbrella species? ...
... • ANSWER: This species is a large animal or other organism on which many other species depend and are very similar to keystone species, but these are usually migratory and need a large habitat. • QUESTION: What are umbrella species? ...