Stability, Equilibrium, and Non
... • Laboratory experiments with simple communities have usually failed to show a link between diversity and stability. Field experiments with complex communities, by contrast, have shown such a link. • The intermediate-disturbance hypothesis suggests that the most diverse communities, such as rain for ...
... • Laboratory experiments with simple communities have usually failed to show a link between diversity and stability. Field experiments with complex communities, by contrast, have shown such a link. • The intermediate-disturbance hypothesis suggests that the most diverse communities, such as rain for ...
Bugs that ate a fragile woodland (PDF File 157.4 KB)
... the Grey Box tree species within the woodlands, this ecological community is at risk of extinction.’ The Cumberland Plain Woodlands is a significant habitat that occurs throughout and alongside Australia’s largest human population centre. The dominant Grey Box is an important source of nectar and po ...
... the Grey Box tree species within the woodlands, this ecological community is at risk of extinction.’ The Cumberland Plain Woodlands is a significant habitat that occurs throughout and alongside Australia’s largest human population centre. The dominant Grey Box is an important source of nectar and po ...
project site summary
... The Iyanola Pride campaign will increase knowledge of the uniqueness of the North East coast and its biodiversity and the threats it faces, including invasive species – cats and dogs (which predate on the iguanas) and rats (which are encouraged by littering), sand mining (which impacts nesting sites ...
... The Iyanola Pride campaign will increase knowledge of the uniqueness of the North East coast and its biodiversity and the threats it faces, including invasive species – cats and dogs (which predate on the iguanas) and rats (which are encouraged by littering), sand mining (which impacts nesting sites ...
The information in this document covers the IB syllabus for topic 5
... Introduction to Ecology First, a few definitions: • ecology = the study of relationships between living organisms and between organisms and their environment • ecosystem = a community and its abiotic environment • population = a group of organisms of the same species who live in the same area at the ...
... Introduction to Ecology First, a few definitions: • ecology = the study of relationships between living organisms and between organisms and their environment • ecosystem = a community and its abiotic environment • population = a group of organisms of the same species who live in the same area at the ...
Biotic Factors
... Influence of Biotic Factors - 5 main types S The last type of interaction is commensalism S Occurs when one individual benefits and the other neither benefits or is harmed S Eg. Barnacles on a whale ...
... Influence of Biotic Factors - 5 main types S The last type of interaction is commensalism S Occurs when one individual benefits and the other neither benefits or is harmed S Eg. Barnacles on a whale ...
Invasive species - Chris Elphick
... challenges: (a) it must get somewhere new (which means somehow being transported there), (b) it must become established once it has arrived (which requires conditions conducive to avoiding rapid extinction), and (c) it must undergo explosive population growth. At each of these steps, most species fa ...
... challenges: (a) it must get somewhere new (which means somehow being transported there), (b) it must become established once it has arrived (which requires conditions conducive to avoiding rapid extinction), and (c) it must undergo explosive population growth. At each of these steps, most species fa ...
4 Species Interactions and Community Ecology
... 2. Introduced species may become invasive when limiting factors that regulate their population growth are absent. 3. In most cases, ecologists view invasive species as having overall negative impacts on ecosystems. 4. In rare cases, non-native species like the honeybee provide important economic ben ...
... 2. Introduced species may become invasive when limiting factors that regulate their population growth are absent. 3. In most cases, ecologists view invasive species as having overall negative impacts on ecosystems. 4. In rare cases, non-native species like the honeybee provide important economic ben ...
2015 Statistical Yearbook for Asia and the Pacific I
... Pacific Community (SPC Ocean Fisheries Programme and the Western and Central Pacific Fisheries Commission, ...
... Pacific Community (SPC Ocean Fisheries Programme and the Western and Central Pacific Fisheries Commission, ...
Lecture 15
... 1. Good Measure of Ecosystem Health -metric for change 2. Ecosystem Stability (species redundancy) 3. Conservation Tool -hotspots (bang for the buck) ...
... 1. Good Measure of Ecosystem Health -metric for change 2. Ecosystem Stability (species redundancy) 3. Conservation Tool -hotspots (bang for the buck) ...
Unanswered questions in ecology
... we have no con¢dent understanding as to what ultimately sets their abundance. On the other hand, for practical problemsö¢sheries management, whaling quotas, harvesting terrestrial animals, predicting outbursts of insect pests ö we do have e¡ective methods for short-term prediction. They are mainly p ...
... we have no con¢dent understanding as to what ultimately sets their abundance. On the other hand, for practical problemsö¢sheries management, whaling quotas, harvesting terrestrial animals, predicting outbursts of insect pests ö we do have e¡ective methods for short-term prediction. They are mainly p ...
Wildlife in Massachusetts - Massachusetts Envirothon
... Methods used to Determine Abundance & Distribution ...
... Methods used to Determine Abundance & Distribution ...
1) What is your section number? What is your TA`s
... two species, Bromus tectorum and Draba verna, in each plot frame. What is the frequency of each species along this transect? (2.0 pts) ...
... two species, Bromus tectorum and Draba verna, in each plot frame. What is the frequency of each species along this transect? (2.0 pts) ...
Chapter 11 - West Morris Central High School
... landowners protect species on their land. Some believe that the ESA should be weakened or repealed while others believe it should be strengthened and modified to focus on protecting ecosystems. Many scientists believe that we should focus on protecting and sustaining biodiversity and ecosystem f ...
... landowners protect species on their land. Some believe that the ESA should be weakened or repealed while others believe it should be strengthened and modified to focus on protecting ecosystems. Many scientists believe that we should focus on protecting and sustaining biodiversity and ecosystem f ...
Species diversity: patterns and causal hypotheses
... Disturbance (and the intermediate disturbance hypothesis) – Disturbances reduce the density of individuals, and thus the intensity of competition. You can consider this to be the inverse of the competition hypothesis in many senses. The intermediate disturbance hypothesis says that when disturbance ...
... Disturbance (and the intermediate disturbance hypothesis) – Disturbances reduce the density of individuals, and thus the intensity of competition. You can consider this to be the inverse of the competition hypothesis in many senses. The intermediate disturbance hypothesis says that when disturbance ...
4-2 Assessment
... • Community = All living things in an area. • Competition: organisms of same or diff. species compete for resources. • Predation: one animal hunts & feeds on another. ...
... • Community = All living things in an area. • Competition: organisms of same or diff. species compete for resources. • Predation: one animal hunts & feeds on another. ...
2 components to Habitat Fragmentation
... (parking lots, buildings, clearcuts, agriculture) • 2) Natural landscapes have natural edges with less contrast than human fragmented landscapes • 3) Some features of human habitat fragmentation - like roads pose specific threats to population viability ...
... (parking lots, buildings, clearcuts, agriculture) • 2) Natural landscapes have natural edges with less contrast than human fragmented landscapes • 3) Some features of human habitat fragmentation - like roads pose specific threats to population viability ...
chapt13_lecture
... Wetlands occupy less than 5% of land, but 1/3 of endangered species spend at least part of their life cycle there. ...
... Wetlands occupy less than 5% of land, but 1/3 of endangered species spend at least part of their life cycle there. ...
Chapters 42
... A) When the precapillary sphincters are relaxed, capillaries branching from the thoughtfare channel are open, and blood flows into the capillary bed B) When the sphincters are contracted, the capillaries are closed, and blood flows through the capillary bed is reduced - Small molecules diffuse throu ...
... A) When the precapillary sphincters are relaxed, capillaries branching from the thoughtfare channel are open, and blood flows into the capillary bed B) When the sphincters are contracted, the capillaries are closed, and blood flows through the capillary bed is reduced - Small molecules diffuse throu ...
Causes and Consequences of Species Extinctions
... and eutrophication from agriculture and deforestation leading to a change in the algal plankton community, there are few other contemporary examples of such a rapid and massive extinction event involving a single group of closely related species. Human-mediated climate change represents a po tentia ...
... and eutrophication from agriculture and deforestation leading to a change in the algal plankton community, there are few other contemporary examples of such a rapid and massive extinction event involving a single group of closely related species. Human-mediated climate change represents a po tentia ...
spring newsletter - Wildlife Conservation Network
... new villages. The giving circle is made up of sixteen women from the San Francisco Bay Area who pool their donations together and make collaborative giving decisions. The Scouts program fit into their goals of providing for the economic self-sufficiency of women and children and sustaining a healthy ...
... new villages. The giving circle is made up of sixteen women from the San Francisco Bay Area who pool their donations together and make collaborative giving decisions. The Scouts program fit into their goals of providing for the economic self-sufficiency of women and children and sustaining a healthy ...
Types/Terms describing Interspecific Interactions Competition
... e.g., how many individuals of species 2 are equivalent to one individual of species 1 in terms of their use of the resource. For example: If one elk (species 1) is equivalent to 3 deer (species 2) in terms of its use of the resource and its effect on species 2, then a12 = 3.0. If the effect of speci ...
... e.g., how many individuals of species 2 are equivalent to one individual of species 1 in terms of their use of the resource. For example: If one elk (species 1) is equivalent to 3 deer (species 2) in terms of its use of the resource and its effect on species 2, then a12 = 3.0. If the effect of speci ...
APES Fall Final Outline
... the human population has grown exponentially. 3. A limiting factor in an environment is anything that “limits” the growth of an organism or a population of organisms. It can be resources, size of environment, etc. A vernal pond (small seasonal pond) can be a limiting factor in how large a fish popul ...
... the human population has grown exponentially. 3. A limiting factor in an environment is anything that “limits” the growth of an organism or a population of organisms. It can be resources, size of environment, etc. A vernal pond (small seasonal pond) can be a limiting factor in how large a fish popul ...
CURLEW NUMENIUS ARQUATA SPECIES ACTION PLAN
... Inappropriate management; over-grazing, or lack of management leading to scrub and bracken encroachment on moorland habitats. ...
... Inappropriate management; over-grazing, or lack of management leading to scrub and bracken encroachment on moorland habitats. ...
Does invasion history matter to the establishment success
... these attributes, in addition to a fast (7-10 day) generation time and ease of establishment in lab culture9-10, D. lumholtzi serves as an ideal species in which to address the proposed research. The specific objectives of this experiment are twofold: 1) test the response (incidence, abundance) of D ...
... these attributes, in addition to a fast (7-10 day) generation time and ease of establishment in lab culture9-10, D. lumholtzi serves as an ideal species in which to address the proposed research. The specific objectives of this experiment are twofold: 1) test the response (incidence, abundance) of D ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.