Sustaining Aquatic Biodiversity - Zamorascience
... Atlantic off the Canadian coast. Beginning in the late 1950s, fishers used bottom trawlers to capture more of the stock, reflected in the sharp rise in this graph. This resulted in extreme overexploitation of the fishery, which began a steady fall throughout the 1970s, followed by a slight recovery ...
... Atlantic off the Canadian coast. Beginning in the late 1950s, fishers used bottom trawlers to capture more of the stock, reflected in the sharp rise in this graph. This resulted in extreme overexploitation of the fishery, which began a steady fall throughout the 1970s, followed by a slight recovery ...
competitive exclusion principle
... Intraspecific competition is also the driving force behind natural selection, since the individuals with the "best" genes are more likely to win the competition and pass on their genes. Some species use aggressive behaviour to minimise real competition. ...
... Intraspecific competition is also the driving force behind natural selection, since the individuals with the "best" genes are more likely to win the competition and pass on their genes. Some species use aggressive behaviour to minimise real competition. ...
Environmental Science
... A niche is more than a habitat, it is also what the organism does within its habitat ...
... A niche is more than a habitat, it is also what the organism does within its habitat ...
Introduction Hill fires are one of the major threats to vegetation in
... Introduction Hill fires are one of the major threats to vegetation in Hong Kong countryside (see fig.1). In the past ten years, there were 166 cases of hill fires on average each year, most of which occurred during the dry season1. Hill fires burn a lot of vegetation, destroy many wild animal habita ...
... Introduction Hill fires are one of the major threats to vegetation in Hong Kong countryside (see fig.1). In the past ten years, there were 166 cases of hill fires on average each year, most of which occurred during the dry season1. Hill fires burn a lot of vegetation, destroy many wild animal habita ...
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... hardwoods like oak and hickory take over deciduous seedlings are shade tolerant, pine is not. Favorable to K-‐selected species. ...
... hardwoods like oak and hickory take over deciduous seedlings are shade tolerant, pine is not. Favorable to K-‐selected species. ...
Slide 1 - Elsevier
... resources are limited, species should divide those resources if the species are to coexist. If two species use identical resources, the one that is most effective at collecting and converting energy into offspring will outcompete the other. Adapted from Pianka, 1988. ...
... resources are limited, species should divide those resources if the species are to coexist. If two species use identical resources, the one that is most effective at collecting and converting energy into offspring will outcompete the other. Adapted from Pianka, 1988. ...
09 Pop Fluc-Struct rubric
... then…subpopulation of grouse treated with drugs will stop cycling and have a stable population size, while the subpopulation of grouse untreated will continue to have cycles. What is your independent variable? drug treatment What is your dependent variable? cycling of population size D. Graph your p ...
... then…subpopulation of grouse treated with drugs will stop cycling and have a stable population size, while the subpopulation of grouse untreated will continue to have cycles. What is your independent variable? drug treatment What is your dependent variable? cycling of population size D. Graph your p ...
Ecological Perspective BIOL 346/Ch 5 (14th New Ed) (Ch 6 Old Ed)
... wasteful resource use to prevent environmental overload and depletion and degradation of resources. ...
... wasteful resource use to prevent environmental overload and depletion and degradation of resources. ...
Adaptive radiation
... The 900 fig tree species produce flowers concealed within an enclosed inflorescence, the fig. A fig wasp pollinates and lays eggs. ...
... The 900 fig tree species produce flowers concealed within an enclosed inflorescence, the fig. A fig wasp pollinates and lays eggs. ...
Community Community Development
... Concepts & definitions Primary & Secondary Succession Patterns & Mechanisms Species involved Applications ...
... Concepts & definitions Primary & Secondary Succession Patterns & Mechanisms Species involved Applications ...
Chapter 11: Biogeography
... Alterations by this pioneer community allow development of new plant communities, which in turn further alter the community Can hundreds or a few thousand years 2. Secondary Succession- begins when some natural process, such as a forest fire, tornado, or landslide that has damaged or destroyed a gre ...
... Alterations by this pioneer community allow development of new plant communities, which in turn further alter the community Can hundreds or a few thousand years 2. Secondary Succession- begins when some natural process, such as a forest fire, tornado, or landslide that has damaged or destroyed a gre ...
December 2013
... play a big role in seed predation in the Kihansi gorge forest (Fig 2a). However, the current evidence is only indicative, does not confirm what exactly the animal species are as we have not spotted any animal when eating the seeds. The photographs displayed here were only taken on the animals found ...
... play a big role in seed predation in the Kihansi gorge forest (Fig 2a). However, the current evidence is only indicative, does not confirm what exactly the animal species are as we have not spotted any animal when eating the seeds. The photographs displayed here were only taken on the animals found ...
Species Interactions and Community Structure
... Variance in feeding preferences and competitive relationships across environments. ...
... Variance in feeding preferences and competitive relationships across environments. ...
Community “structure”
... Lotic Communities • What is a community? A) The Dictionary A term applied to any grouping of populations of organisms found living together in a particular environment; essentially, the biotic component of an ecosystem. The organisms interact (by competition, predation, mutualism, etc.) and give the ...
... Lotic Communities • What is a community? A) The Dictionary A term applied to any grouping of populations of organisms found living together in a particular environment; essentially, the biotic component of an ecosystem. The organisms interact (by competition, predation, mutualism, etc.) and give the ...
Population Dynamics, Carrying Capacity, and Conservation Biology
... Population size fairly stable and usually close to carrying capacity (K) Specialist niche High ability to compete Late successional species ...
... Population size fairly stable and usually close to carrying capacity (K) Specialist niche High ability to compete Late successional species ...
You Light Up My Life
... Smallest unit of an element that still retains the element’s properties. Electrons, protons, and neutrons are its building blocks. This hydrogen atom’s electron zips around a proton in a spherical volume of space Fig. 1-1a, p.2 ...
... Smallest unit of an element that still retains the element’s properties. Electrons, protons, and neutrons are its building blocks. This hydrogen atom’s electron zips around a proton in a spherical volume of space Fig. 1-1a, p.2 ...
Chapter 11
... • Species abundance varies with diversity – Mussels in mod. abundance; Barnacles – mod.; Sea stars – mod. ...
... • Species abundance varies with diversity – Mussels in mod. abundance; Barnacles – mod.; Sea stars – mod. ...
Uroderma bilobatum (Tent-making Bat)
... in February and June (Baker and Clark, 1987). One offspring is produced for every pregnancy, therefore each female produces two offspring per year. The spermatogenic cycles of the males correspond to the female receptivity changes that occur with each season (Baker and Clark, 1987). Females become s ...
... in February and June (Baker and Clark, 1987). One offspring is produced for every pregnancy, therefore each female produces two offspring per year. The spermatogenic cycles of the males correspond to the female receptivity changes that occur with each season (Baker and Clark, 1987). Females become s ...
Guild coevolution
... Rabbits and myxoma virus Over time, host evolved greater resistance and virus evolved a mid-level of virulence ...
... Rabbits and myxoma virus Over time, host evolved greater resistance and virus evolved a mid-level of virulence ...
chapter5
... Populations? • Concept 5-2 No population can continue to grow indefinitely because of limitations on resources and because of competition among species for those resources. ...
... Populations? • Concept 5-2 No population can continue to grow indefinitely because of limitations on resources and because of competition among species for those resources. ...
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.