Build Your Own Ocean Food Web!
... Step 7: As a homework assignment, students should write answers to the following questions: 1.) Describe what role your organism played in the marine food web. 2.) Why are humans important to include in the marine food web? ...
... Step 7: As a homework assignment, students should write answers to the following questions: 1.) Describe what role your organism played in the marine food web. 2.) Why are humans important to include in the marine food web? ...
Spongivory by juvenile angelfish - Instituto de Biociências da USP
... (Böhlke and Chaplin 1968, Thresher 1980, Hourigan et al. 1989, Sazima et al. 1999, Batista 2006). Juveniles of angelfish such as H. tricolor dwell mostly in cryptic habitats inaccessible for divers (Thresher 1980). These habitats are often dominated by sponges (Sarà and Vacelet 1973). Other species ...
... (Böhlke and Chaplin 1968, Thresher 1980, Hourigan et al. 1989, Sazima et al. 1999, Batista 2006). Juveniles of angelfish such as H. tricolor dwell mostly in cryptic habitats inaccessible for divers (Thresher 1980). These habitats are often dominated by sponges (Sarà and Vacelet 1973). Other species ...
Lecture 22. Succession Reconsidered
... ** because of these differences in colonization rates and growth rates, -succession would proceed even in the absence of any interactions among species Succession is more complicated than one set of species replacing another, however -recall there are three different kinds of species interactions th ...
... ** because of these differences in colonization rates and growth rates, -succession would proceed even in the absence of any interactions among species Succession is more complicated than one set of species replacing another, however -recall there are three different kinds of species interactions th ...
Dune Ecology: Beaches and Primary Dunes
... birds like piping plovers, particularly for unfledged plover chicks that often lack access to their preferred feeding areas (back bay tidal flats) due to human development. In addition, it is common to see swallows swooping low over the strand in search of robber flies and other insects drawn to thi ...
... birds like piping plovers, particularly for unfledged plover chicks that often lack access to their preferred feeding areas (back bay tidal flats) due to human development. In addition, it is common to see swallows swooping low over the strand in search of robber flies and other insects drawn to thi ...
Small-mammal abundance at three elevations on a mountain in
... median density estimates across locations ranged from 12 to 19/ha in June and from 25 to 32/ha in July. Annual ¯uctuations in mouse abundance were synchronous across elevations, probably in response to regional-scale ¯uctuations in acorn production. In addition to those for white-footed mice, standa ...
... median density estimates across locations ranged from 12 to 19/ha in June and from 25 to 32/ha in July. Annual ¯uctuations in mouse abundance were synchronous across elevations, probably in response to regional-scale ¯uctuations in acorn production. In addition to those for white-footed mice, standa ...
Good Buddies
... ways. A very specific interaction that may occur between the organisms is defined as symbiosis, a close, coevolutionary association between one species (host) and another species (symbiont). Species may interact in a variety of different ways: 1. Amensalism (- , 0) -- in this interaction, one specie ...
... ways. A very specific interaction that may occur between the organisms is defined as symbiosis, a close, coevolutionary association between one species (host) and another species (symbiont). Species may interact in a variety of different ways: 1. Amensalism (- , 0) -- in this interaction, one specie ...
Chapter 24: History and Biogeography
... and functioning of ecosystems: would Australian ecosystems function in the same manner if eucalyptus were replaced by some other kinds of plants? would forests of different kinds of trees be less susceptible to fires? if so, what consequences would this have for ecosystem function? (c) 2001 by W. ...
... and functioning of ecosystems: would Australian ecosystems function in the same manner if eucalyptus were replaced by some other kinds of plants? would forests of different kinds of trees be less susceptible to fires? if so, what consequences would this have for ecosystem function? (c) 2001 by W. ...
Sample Chapter 03
... as “groups of populations that can actually or potentially exchange genes with one another and that are reproductively isolated from other such groups.” The biological species concept defines species in terms of interbreeding. It has been used to distinguish morphologically similar yet reproductivel ...
... as “groups of populations that can actually or potentially exchange genes with one another and that are reproductively isolated from other such groups.” The biological species concept defines species in terms of interbreeding. It has been used to distinguish morphologically similar yet reproductivel ...
Tradeoffs, competition, and coexistence in eastern deciduous forest
... species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of baits expected to be discovered by a given species was calcu ...
... species was standardised by the foraging activity of that species (as measured by the number of pitfalls the species fell into) to provide a measure of relative discovery ability. In this second method, a null expectation for the number of baits expected to be discovered by a given species was calcu ...
Full text in pdf format
... by crustose coralline algae which form a nearly continuous pink carpet. A similar situation is observed on the top surfaces of the rocks and boulders found in the deeper zone (between 15 and 20 m depth). The shallow portion of the coralline zone (between 4 and 15 m) is dominated by the corallines Li ...
... by crustose coralline algae which form a nearly continuous pink carpet. A similar situation is observed on the top surfaces of the rocks and boulders found in the deeper zone (between 15 and 20 m depth). The shallow portion of the coralline zone (between 4 and 15 m) is dominated by the corallines Li ...
Application of species distribution models to explain and predict the
... 2002; Harman et al., 2003) environmental variables. Unfortunately, many of these descriptions of species–habitat associations are strictly qualitative and do not allow for making quantitative predictions of species densities beyond the areas sampled (Chatfield et al., 2010). Moreover, the applicatio ...
... 2002; Harman et al., 2003) environmental variables. Unfortunately, many of these descriptions of species–habitat associations are strictly qualitative and do not allow for making quantitative predictions of species densities beyond the areas sampled (Chatfield et al., 2010). Moreover, the applicatio ...
Power, M.E., D. Tilman, J.A. Estes, B.A. Menge, W.J. Bond, L.S. Mills
... correlated, and if the distributions of cies are not always of high trophic interaction strengths documented in status. Third, keystone species can these studies prove widespread, com- exert effects, not only through the munity importance should also com- commonly known mechanism of conmonly be dist ...
... correlated, and if the distributions of cies are not always of high trophic interaction strengths documented in status. Third, keystone species can these studies prove widespread, com- exert effects, not only through the munity importance should also com- commonly known mechanism of conmonly be dist ...
The introduction of alien mammals into the broader Western and
... the domestic pig. This account does not, however, focus on domestic species, besides those that may be considered to have entered the ‘wildlife’ estate. For the historical period covered by this book, it is useful to differentiate between two ‘waves’ of introductions of mammals. The first such wave ...
... the domestic pig. This account does not, however, focus on domestic species, besides those that may be considered to have entered the ‘wildlife’ estate. For the historical period covered by this book, it is useful to differentiate between two ‘waves’ of introductions of mammals. The first such wave ...
Module 3: Ocean Connections - University of Miami Shark Research
... are based on more than 20,000 net tows and, although new species will certainly continue to be discovered, it is obvious that pelagic biodiversity is of another order than both terrestrial and marine benthic diversity. This low number of (animal) species is in striking contrast with the diversity o ...
... are based on more than 20,000 net tows and, although new species will certainly continue to be discovered, it is obvious that pelagic biodiversity is of another order than both terrestrial and marine benthic diversity. This low number of (animal) species is in striking contrast with the diversity o ...
Section 3 overview of potential threats
... Some species have more specialised requirements or reliance on cover than others, with differences also within a species at different stages of their life cycle (juveniles and small species normally need higher densities of cover). Habitat requirements can vary through time depending on different wa ...
... Some species have more specialised requirements or reliance on cover than others, with differences also within a species at different stages of their life cycle (juveniles and small species normally need higher densities of cover). Habitat requirements can vary through time depending on different wa ...
Population Ecology of Some Warblers of Northeastern
... or habitat of related species; such differences, if found, are then cited as the reason competition is not eliminating all but one of the species. Unfortunately, however, differences in food and space requirements are neither always necessary nor always sufficient to prevent competition and permit c ...
... or habitat of related species; such differences, if found, are then cited as the reason competition is not eliminating all but one of the species. Unfortunately, however, differences in food and space requirements are neither always necessary nor always sufficient to prevent competition and permit c ...
Invasive Weeds - Association of Fish and Wildlife Agencies
... Fisheries, waterways, and utilities have spent $3.1 billion over the last ten years to control IAS, highlighted by efforts to control the spread of zebra mussels and water hyacinth, for example. Florida spends over $90 million per year to control aquatic invasive plants for wildlife and recreation u ...
... Fisheries, waterways, and utilities have spent $3.1 billion over the last ten years to control IAS, highlighted by efforts to control the spread of zebra mussels and water hyacinth, for example. Florida spends over $90 million per year to control aquatic invasive plants for wildlife and recreation u ...
ppt
... “I think what we’re going to find out is that assembly rules are vague, gentle constraints” ...
... “I think what we’re going to find out is that assembly rules are vague, gentle constraints” ...
Chapter 4
... • Parasitism = a relationship in which one organism (parasite) depends on another (host) - For nourishment or some other benefit - The parasite harms, but doesn’t kill, the host • Some are free-living - Infrequent contact with their hosts - Ticks, sea lampreys • Some live within the host - Disease, ...
... • Parasitism = a relationship in which one organism (parasite) depends on another (host) - For nourishment or some other benefit - The parasite harms, but doesn’t kill, the host • Some are free-living - Infrequent contact with their hosts - Ticks, sea lampreys • Some live within the host - Disease, ...
Chapter4 - Threats to biological diversity III
... control through early attempts at vaccination and natural immunity among surviving animals In the early 1960s a more reliable vaccine was developed and between 1962 and 1976 there was a large-scale attempt to eradicate rinderpest entirely from Africa through mass vaccination This was largely suc ...
... control through early attempts at vaccination and natural immunity among surviving animals In the early 1960s a more reliable vaccine was developed and between 1962 and 1976 there was a large-scale attempt to eradicate rinderpest entirely from Africa through mass vaccination This was largely suc ...
interpretation of alpine areas for recreation: i. vegetati on
... trampling by horses and people or disturbance by motor vehJcles is concerned. There may be an attrition of plants to the point where reproductive processes are suppressed. ...
... trampling by horses and people or disturbance by motor vehJcles is concerned. There may be an attrition of plants to the point where reproductive processes are suppressed. ...
Absence of phylogenetic signal in the niche structure of meadow
... Why should the traits that determine a niches be less conservative in their evolution than those that determine b niches? We propose that the reason lies in the hierarchical nature of community assembly. A plant’s b niche defines the habitat or habitats in which it can survive. Habitats differ from ...
... Why should the traits that determine a niches be less conservative in their evolution than those that determine b niches? We propose that the reason lies in the hierarchical nature of community assembly. A plant’s b niche defines the habitat or habitats in which it can survive. Habitats differ from ...
BIOGEOGRAPHY 8
... another significantly less than those of Atlantic seaweeds. Because the location of range boundaries was randomized, this null hypothesis did not take into account the length of the range of each species. Thus, part of the difference between Atlantic and Pacific algal distributions could be attribut ...
... another significantly less than those of Atlantic seaweeds. Because the location of range boundaries was randomized, this null hypothesis did not take into account the length of the range of each species. Thus, part of the difference between Atlantic and Pacific algal distributions could be attribut ...
Global Ecology
... 2. Organisms making up the community are somehow integrated and may interact as a unit. 3. Communities are not constructed only of plants. 4. Some communities are mostly animals (e.g. fish and invertebrates that comprise coral-reef communities). 5. Most communities consist of a mixture of plants, an ...
... 2. Organisms making up the community are somehow integrated and may interact as a unit. 3. Communities are not constructed only of plants. 4. Some communities are mostly animals (e.g. fish and invertebrates that comprise coral-reef communities). 5. Most communities consist of a mixture of plants, an ...
Regeneration of Sponges in Ecological Context: Is Regeneration an
... made by experimental wounding were re-filled varied widely among species (Figs. 2B, C and 4A); species that began to fill wound holes relatively quickly were not necessarily the species that continued to completely regenerate the removed tissue rapidly (Figs. 2C and 4A). Wound filling proceeded in t ...
... made by experimental wounding were re-filled varied widely among species (Figs. 2B, C and 4A); species that began to fill wound holes relatively quickly were not necessarily the species that continued to completely regenerate the removed tissue rapidly (Figs. 2C and 4A). Wound filling proceeded in t ...
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.