DISPERSAL OF LIVING ORGANISMS INTO AQUATIC ECOSYSTEMS
... bones, were doubtless lost when the fish was returned to feral conditions (Laycock 1966). Within the first two decades of the 1900s, the introduction of common carp was generally recognized as a mistake, particularly as it began to dominate many waters in the midwest and east (Courtenay et al. 1984, ...
... bones, were doubtless lost when the fish was returned to feral conditions (Laycock 1966). Within the first two decades of the 1900s, the introduction of common carp was generally recognized as a mistake, particularly as it began to dominate many waters in the midwest and east (Courtenay et al. 1984, ...
SPAR SWG changes to Ramsar Criteria
... intersect at major wetlands. Where such populations are indistinguishable in the field, as is usually the case, this can present practical problems as to which 1% threshold to apply. Where such mixed populations occur (and these are inseparable in the field) it is suggested that the larger 1% thresh ...
... intersect at major wetlands. Where such populations are indistinguishable in the field, as is usually the case, this can present practical problems as to which 1% threshold to apply. Where such mixed populations occur (and these are inseparable in the field) it is suggested that the larger 1% thresh ...
![Conservation biology as a profession[edit]](http://s1.studyres.com/store/data/000226038_1-05c49ceb5ea1e28cf988051086edd157-300x300.png)
Conservation biology as a profession[edit]
... of biological diversity with the Convention on Biological Diversity;[53] subsequently many countries began programmes of Biodiversity Action Plans to identify and conserve threatened species within their borders, as well as protect associated habitats. The late 1990s saw increasing professionalism i ...
... of biological diversity with the Convention on Biological Diversity;[53] subsequently many countries began programmes of Biodiversity Action Plans to identify and conserve threatened species within their borders, as well as protect associated habitats. The late 1990s saw increasing professionalism i ...
Chinchilla - The Maryland Zoo in Baltimore
... (compared to humans who have 1 hair growing out of each follicle) Conservation Status and Threats: Listed on the IUCN Red List as Endangered o Previously thought to be extinct in the 1960s but has since been rediscovered in the wild. o The species is suspected to be recovering in some areas as suc ...
... (compared to humans who have 1 hair growing out of each follicle) Conservation Status and Threats: Listed on the IUCN Red List as Endangered o Previously thought to be extinct in the 1960s but has since been rediscovered in the wild. o The species is suspected to be recovering in some areas as suc ...
variation in the number of ray- and disc
... From the data represented in Fig. 1, it is seen that though there is a great deal of variation in the numbers of rayflorets per head within the same species, the mode of each species invariably turns out to be a Fibonacci number. For Tridax the mode is at the fifth Fibonacci number; that is, at 5; f ...
... From the data represented in Fig. 1, it is seen that though there is a great deal of variation in the numbers of rayflorets per head within the same species, the mode of each species invariably turns out to be a Fibonacci number. For Tridax the mode is at the fifth Fibonacci number; that is, at 5; f ...
- New Zealand Ecological Society
... and management programmes. In this paper, we review what is known about major causes of current declines or population limitation, including predation, competition for food or another resource, disease, forest loss, and genetic problems such as inbreeding depression and reduced genetic variation. Mu ...
... and management programmes. In this paper, we review what is known about major causes of current declines or population limitation, including predation, competition for food or another resource, disease, forest loss, and genetic problems such as inbreeding depression and reduced genetic variation. Mu ...
DISPERSAL LIMITATION, INVASION RESISTANCE, AND THE
... that the regional pool contains fewer potential invaders in sites where more species are already present (MacArthur and Wilson 1967). The second is that more diverse communities may utilize resources more completely or efficiently so that less niche space is available for new species to occupy (Elto ...
... that the regional pool contains fewer potential invaders in sites where more species are already present (MacArthur and Wilson 1967). The second is that more diverse communities may utilize resources more completely or efficiently so that less niche space is available for new species to occupy (Elto ...
Do persistent rare species experience stronger negative frequency
... both intra- and interspecific competition. If a series of unfavourable years pushes it to the brink of extinction, it will still suffer from strong interspecific competition from more abundant competitors, limiting the rate at which it can rebound to its (stochastic) equilibrium abundance, and incre ...
... both intra- and interspecific competition. If a series of unfavourable years pushes it to the brink of extinction, it will still suffer from strong interspecific competition from more abundant competitors, limiting the rate at which it can rebound to its (stochastic) equilibrium abundance, and incre ...
Landscape modification and habitat fragmentation: a
... well-managed production landscapes (Daily, 2001; Lindenmayer & Franklin, 2002). On this basis, we suggest that the term ‘habitat’ and associated terms like ‘habitat fragmentation’ be used only in a single-species context (Table 1). The broader use of the term habitat (i.e. equating it with native ve ...
... well-managed production landscapes (Daily, 2001; Lindenmayer & Franklin, 2002). On this basis, we suggest that the term ‘habitat’ and associated terms like ‘habitat fragmentation’ be used only in a single-species context (Table 1). The broader use of the term habitat (i.e. equating it with native ve ...
Large Species Shifts Triggered by Small Forces
... In order to induce a switch back to the upper branch, it is not sufficient to restore the environmental conditions before the collapse (F2). Instead, one needs to go back beyond the other bifurcation point (F1), where the system recovers by shifting back to the upper branch. The difference between f ...
... In order to induce a switch back to the upper branch, it is not sufficient to restore the environmental conditions before the collapse (F2). Instead, one needs to go back beyond the other bifurcation point (F1), where the system recovers by shifting back to the upper branch. The difference between f ...
2014 Report
... As an intern in the Conservation and Research Department of Zoo Miami I have been able to not only understand the zoo field better but have truly fallen in love with the field of conservation biology. Once I graduated, I was accepted as an intern in Zoo Miami’s Conservation and Research Department. ...
... As an intern in the Conservation and Research Department of Zoo Miami I have been able to not only understand the zoo field better but have truly fallen in love with the field of conservation biology. Once I graduated, I was accepted as an intern in Zoo Miami’s Conservation and Research Department. ...
Torquay 2010 - Australasian Wildlife Management Society
... have been printed as received from submitting authors except for minor editing. In many cases the contents contain preliminary results only. Any advice provided in this publication is intended as a source of information only. Please check with the authors before using information. The Australasian W ...
... have been printed as received from submitting authors except for minor editing. In many cases the contents contain preliminary results only. Any advice provided in this publication is intended as a source of information only. Please check with the authors before using information. The Australasian W ...
Overgrazing - IDC Technologies
... The most common practices that produce overgrazing are: (a) excessive animal density on the land; (b) lack of rotation or residence time of grazers on a sub-plot of the landscape unit; (c) grazing at inappropriate times relative to the flora productivity cycle. In the case of essentially native land ...
... The most common practices that produce overgrazing are: (a) excessive animal density on the land; (b) lack of rotation or residence time of grazers on a sub-plot of the landscape unit; (c) grazing at inappropriate times relative to the flora productivity cycle. In the case of essentially native land ...
Climate mediates the effects of disturbance on ant assemblage structure
... consequence of the kind of data available, if nothing else), at more local scales the differences in the relative abundances of taxa become more important in distinguishing between communities. As a result, it becomes important to consider the drivers not only of the number of species, but also thei ...
... consequence of the kind of data available, if nothing else), at more local scales the differences in the relative abundances of taxa become more important in distinguishing between communities. As a result, it becomes important to consider the drivers not only of the number of species, but also thei ...
Studying insect diversity in the tropics
... himself (Erwin 1983) and others (e.g. Adis et al. 1984; Davies et al. 1997); in Africa (e.g. Basset et al. 1992; Wagner 1997); in Asia (e.g. Morse et al. 1988; Stork 1988, 1991; Hammond et al. 1997); and in Australia (e.g. Basset & Kitching 1991). The studies show an inordinate fondness for beetles, ...
... himself (Erwin 1983) and others (e.g. Adis et al. 1984; Davies et al. 1997); in Africa (e.g. Basset et al. 1992; Wagner 1997); in Asia (e.g. Morse et al. 1988; Stork 1988, 1991; Hammond et al. 1997); and in Australia (e.g. Basset & Kitching 1991). The studies show an inordinate fondness for beetles, ...
Viewpoint: A theoretical basis for planning woody plant control to
... Another potential problem with basing woody plant control on the intermediate disturbance concept is that continuing cultural inputs are required to maintain a broad range of successional habitats ranging from recently disturbed to late successional. These continuing cultural inputs may or may not b ...
... Another potential problem with basing woody plant control on the intermediate disturbance concept is that continuing cultural inputs are required to maintain a broad range of successional habitats ranging from recently disturbed to late successional. These continuing cultural inputs may or may not b ...
Ecological speciation
... • Ecological factors of speciation: o Habitat isolation (salinity levels, substrate types, host species ...) o Temporal isolation (flowering times) o Sexual isolation (selection for body size) o Gametic isolation (gamete recognition mechanisms) o Postzygotic isolation (hybrid low fitness / lethality ...
... • Ecological factors of speciation: o Habitat isolation (salinity levels, substrate types, host species ...) o Temporal isolation (flowering times) o Sexual isolation (selection for body size) o Gametic isolation (gamete recognition mechanisms) o Postzygotic isolation (hybrid low fitness / lethality ...
shark-seeing - Bali Sharks
... most people because of the way they have been portrayed by Hollywood in movies. Shark Island consists of a 1 are floating raft or pontoon which is currently being used as a shark nursery. The nursery currently houses 10 Black Reef Tip pups and 2 larger White Reef Tip sharks. Shark Island is an eco-f ...
... most people because of the way they have been portrayed by Hollywood in movies. Shark Island consists of a 1 are floating raft or pontoon which is currently being used as a shark nursery. The nursery currently houses 10 Black Reef Tip pups and 2 larger White Reef Tip sharks. Shark Island is an eco-f ...
View - OhioLINK Electronic Theses and Dissertations Center
... also leaves nests particularly vulnerable to predation in the forest understory. Aside from the notion that honeysuckle is not a species of high priority to managers, what approach are managers to take against other invasives, plant or animal, whose ecological merit is two-fold? These are conversati ...
... also leaves nests particularly vulnerable to predation in the forest understory. Aside from the notion that honeysuckle is not a species of high priority to managers, what approach are managers to take against other invasives, plant or animal, whose ecological merit is two-fold? These are conversati ...
Coexistence of nearly neutral species - SYSU
... communities produce log-series species-abundance distributions, species richness is higher in trade-off communities. Similarly, Ostling (2011) and Zhang et al. (2012) relaxed Hubbell’s original neutral model by considering fitness equivalence and found that high species diversity can result from an ...
... communities produce log-series species-abundance distributions, species richness is higher in trade-off communities. Similarly, Ostling (2011) and Zhang et al. (2012) relaxed Hubbell’s original neutral model by considering fitness equivalence and found that high species diversity can result from an ...
Interspecific Communication
... through dilution effects, predator deterrence, and improved detection. However, a positive association between the group size and predator detection efficiency relies on the ability of the members to communicate. For this reason, the evolution of social complexity is often associated with the evolut ...
... through dilution effects, predator deterrence, and improved detection. However, a positive association between the group size and predator detection efficiency relies on the ability of the members to communicate. For this reason, the evolution of social complexity is often associated with the evolut ...
Chapter 4
... number of species to coexist in a relatively isotrophic or unstructured environment, all competing for the ...
... number of species to coexist in a relatively isotrophic or unstructured environment, all competing for the ...
Plants & Ecology Baltic Sea shores and climate change
... Island biogeography does not only concern islands but also isolated habitats in heterogeneous landscapes. Thus, when conducting a study in for example an archipelago, the island concept does not only concern island size and isolation (distance to mainland) but can also be used for a single shore mea ...
... Island biogeography does not only concern islands but also isolated habitats in heterogeneous landscapes. Thus, when conducting a study in for example an archipelago, the island concept does not only concern island size and isolation (distance to mainland) but can also be used for a single shore mea ...
The role of dispersal in shaping plant community Kathryn M. Flinn
... strengths of environmental and spatial effects on community composition across organisms and habitats can yield general insights into where each process should predominate (Cottenie 2005). For example, spatial scale and the range of environmental variation may affect the balance of environmental and ...
... strengths of environmental and spatial effects on community composition across organisms and habitats can yield general insights into where each process should predominate (Cottenie 2005). For example, spatial scale and the range of environmental variation may affect the balance of environmental and ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.