Process error in non-linear, statistical catch-at
... Single-species calculations About 2,000 lines of Amak code (AD Model Builder) 27 main equations with interactions 84 estimated parameters for pollock and 351 for ...
... Single-species calculations About 2,000 lines of Amak code (AD Model Builder) 27 main equations with interactions 84 estimated parameters for pollock and 351 for ...
Unit 3 Environmental Science: Energy
... In any population there may be alleles for a deleterious trait. In a large population, there is a low probability an individual will wind up with both alleles for the deleterious trait. In a small population, where mating between two individuals with similar genotype is inevitable, there is a greate ...
... In any population there may be alleles for a deleterious trait. In a large population, there is a low probability an individual will wind up with both alleles for the deleterious trait. In a small population, where mating between two individuals with similar genotype is inevitable, there is a greate ...
ADAPTIVE RADIATION OF THE NEW ZEALAND GECKOS
... of common gecko for his thesis. He quickly noticed that in each of several regions around the country there appeared to be two distinct populations based on size. Rod quickly dubbed these “maxis” and “minis” and assumed they must have been two separate species. However when Rod sequenced DNA from ma ...
... of common gecko for his thesis. He quickly noticed that in each of several regions around the country there appeared to be two distinct populations based on size. Rod quickly dubbed these “maxis” and “minis” and assumed they must have been two separate species. However when Rod sequenced DNA from ma ...
Chapter 53: Population Ecology
... 21. According to the energetic hypothesis, why are food chains limited in length? How much energy ...
... 21. According to the energetic hypothesis, why are food chains limited in length? How much energy ...
Is the number of tree species in small tropical forest plots nonrandom?
... these models to a dataset of 1170 100m2 circular plots in the old-growth portion of La Selva Biological Station in the Atlantic Lowlands of Costa Rica. Although species richness in these plots was close to its theoretical maximum, we found that it was frequently lower than null expectation. This was ...
... these models to a dataset of 1170 100m2 circular plots in the old-growth portion of La Selva Biological Station in the Atlantic Lowlands of Costa Rica. Although species richness in these plots was close to its theoretical maximum, we found that it was frequently lower than null expectation. This was ...
Chapter 17 - Biological Communities
... but they stay mainly at the top. • Remaining portions of the Spruce are divided among its potential ...
... but they stay mainly at the top. • Remaining portions of the Spruce are divided among its potential ...
Artificial Habitats
... organism (plant or animal) lives naturally. This concept is simple and clear, easy to understand and interpret and not greater ambiguity. However, for cases such as migratory and / or development and reproduction cycles in different places, the spatial definition can not be a simple task. In such ca ...
... organism (plant or animal) lives naturally. This concept is simple and clear, easy to understand and interpret and not greater ambiguity. However, for cases such as migratory and / or development and reproduction cycles in different places, the spatial definition can not be a simple task. In such ca ...
Sevilleta LTER (SEV)
... Chihuahuan Desert. The research sites include the 92,060-ha Sevilleta National Wildlife Refuge which is managed by the US Fish and Wildlife Service for the purposes of conservation, research and education. Recently, SEV LTER research has expanded to areas in the riparian corridor along the Middle Ri ...
... Chihuahuan Desert. The research sites include the 92,060-ha Sevilleta National Wildlife Refuge which is managed by the US Fish and Wildlife Service for the purposes of conservation, research and education. Recently, SEV LTER research has expanded to areas in the riparian corridor along the Middle Ri ...
Landscape Change and Processes in Natural Area Management at
... the ecosystem, especially where there has been a long history of human impact on the land. Across the Escarpment, forest cover is changing as abandoned lands are regenerating naturally or through human intervention. However, this change is at the expense of other ecosystems such as abandoned agricul ...
... the ecosystem, especially where there has been a long history of human impact on the land. Across the Escarpment, forest cover is changing as abandoned lands are regenerating naturally or through human intervention. However, this change is at the expense of other ecosystems such as abandoned agricul ...
Conservation status of Yellow-spotted Bell Frog in New South Wales
... Southern range - There have been no estimates of population density for this species in the region but anecdotal information suggests that moderately large populations of members of the L. aurea complex (specific identity unknown) existed prior to 1980 (Osborne et al. 1996). Surveys of most of known ...
... Southern range - There have been no estimates of population density for this species in the region but anecdotal information suggests that moderately large populations of members of the L. aurea complex (specific identity unknown) existed prior to 1980 (Osborne et al. 1996). Surveys of most of known ...
Key threatened species - Nillumbik Shire Council
... Habitat: It is known from several populations, including at Christmas Hills, Cottlesbridge, Hurstbridge, St Andrews and Eltham. All populations are now very small and confined to less than 20-30 plants. It prefers Box-ironbark Woodland and Dry sclerophyll forest (Grassy Dry Forest), low flat ridges ...
... Habitat: It is known from several populations, including at Christmas Hills, Cottlesbridge, Hurstbridge, St Andrews and Eltham. All populations are now very small and confined to less than 20-30 plants. It prefers Box-ironbark Woodland and Dry sclerophyll forest (Grassy Dry Forest), low flat ridges ...
Guidance note on biodiversity for use by Hydro when entering into
... “original state”. "Original state" must be defined. If the actual site has been influenced or changed from its pristine condition, restoration back to "original state" can achieve a "net gain" of biodiversity in the area. Objectives regarding timing of full restoration should be developed. As this m ...
... “original state”. "Original state" must be defined. If the actual site has been influenced or changed from its pristine condition, restoration back to "original state" can achieve a "net gain" of biodiversity in the area. Objectives regarding timing of full restoration should be developed. As this m ...
Behavioral Resource Partitioning among Rana Species in
... substantial flexibility in circadian activity patterns, allowing them to locally adapt their foraging strategies to coexist in an area (Monterroso et al, 2014). Because green frogs show the lowest average propensity for activity in the mornings and the highest at night, wood frogs would likely have ...
... substantial flexibility in circadian activity patterns, allowing them to locally adapt their foraging strategies to coexist in an area (Monterroso et al, 2014). Because green frogs show the lowest average propensity for activity in the mornings and the highest at night, wood frogs would likely have ...
Colour Patterns Do Not Diagnose Species
... Cryptic diversity within bumblebees (Bombus) has the potential to undermine crucial conservation efforts designed to reverse the observed decline in many bumblebee species worldwide. Central to such efforts is the ability to correctly recognise and diagnose species. The B. lucorum complex (Bombus lu ...
... Cryptic diversity within bumblebees (Bombus) has the potential to undermine crucial conservation efforts designed to reverse the observed decline in many bumblebee species worldwide. Central to such efforts is the ability to correctly recognise and diagnose species. The B. lucorum complex (Bombus lu ...
Key Threatened Species FLORA Rosella Spider Orchid Caladenia
... diverse meta-population in Victoria. The largest concentrations occur around Christmas Hills, Watsons Creek and Kangaroo Ground but the species is also sparsely distributed in parts of Eltham and North Warrandyte. Females forage over a home range of 30-60ha that do not overlap, whereas males forage ...
... diverse meta-population in Victoria. The largest concentrations occur around Christmas Hills, Watsons Creek and Kangaroo Ground but the species is also sparsely distributed in parts of Eltham and North Warrandyte. Females forage over a home range of 30-60ha that do not overlap, whereas males forage ...
Ecological Succession:
... Studying how ecological communities respond to change … • Ecological communities = the plants and animals found in an area. • Succession = Sequence of communities a region goes through over time. • Change can occur for many reasons: new resources, disturbances, and biotic changes. Sequence of commu ...
... Studying how ecological communities respond to change … • Ecological communities = the plants and animals found in an area. • Succession = Sequence of communities a region goes through over time. • Change can occur for many reasons: new resources, disturbances, and biotic changes. Sequence of commu ...
Eastern Bristlebird Saving our Species project 2013
... Environment and Heritage Protection and release to appropriate sites in restored habitat; collect eggs/chicks to supplement existing captive held individuals ...
... Environment and Heritage Protection and release to appropriate sites in restored habitat; collect eggs/chicks to supplement existing captive held individuals ...
Keystone Species
... Daughter Ma! We have learnt this is school. Human community is a group of people who live together in the neighborhood like we do in our Residential complex. In the context of plants and animals it means a naturally occurring group of different species that share a common environment. Father: You ar ...
... Daughter Ma! We have learnt this is school. Human community is a group of people who live together in the neighborhood like we do in our Residential complex. In the context of plants and animals it means a naturally occurring group of different species that share a common environment. Father: You ar ...
28.3 What Are The Effects Of Predator–Prey Interactions?
... • All five species lived and built nests in the same spruce trees, so it appeared at first glance that their niches overlapped significantly. • MacArthur found that the different species nested at different times, and searched for food in different portions of the tree, employing different hunting t ...
... • All five species lived and built nests in the same spruce trees, so it appeared at first glance that their niches overlapped significantly. • MacArthur found that the different species nested at different times, and searched for food in different portions of the tree, employing different hunting t ...
Conservation in the Anthropocene
... and species (Table 1), and it is vital to identify and protect them now. We define intact ecosystems as those in which the majority of native species are still present in abundances at which they play the same functional roles as they did before extensive human settlement or use, where pollution has ...
... and species (Table 1), and it is vital to identify and protect them now. We define intact ecosystems as those in which the majority of native species are still present in abundances at which they play the same functional roles as they did before extensive human settlement or use, where pollution has ...
EPBC Act Protected Matters Report - NT EPA
... habitat studies. Where appropriate, core breeding, foraging and roosting areas are indicated under 'type of presence'. For species whose distributions are less well known, point locations are collated from government wildlife authorities, museums, and non-government organisations; bioclimatic distri ...
... habitat studies. Where appropriate, core breeding, foraging and roosting areas are indicated under 'type of presence'. For species whose distributions are less well known, point locations are collated from government wildlife authorities, museums, and non-government organisations; bioclimatic distri ...
Kangaroos Threaten One Of Australia`s Last Remaining Original
... Aborigines, who used this sensitive ecosystem sustainably through hunting and fire management. Natural predators like the dingo controlled the kangaroo populations. When Australia was settled 200 years ago, first the grasslands were lost and then the development of cities like Canberra led to a comp ...
... Aborigines, who used this sensitive ecosystem sustainably through hunting and fire management. Natural predators like the dingo controlled the kangaroo populations. When Australia was settled 200 years ago, first the grasslands were lost and then the development of cities like Canberra led to a comp ...
Chapter 5 Slides
... • A population can “briefly” exceed (overshoot) the area’s carrying capacity due to: • Reproductive time lag • If it greatly overshoots the carrying capacity, the result is: • Population crash and • Damage may reduce area’s new carrying capacity ...
... • A population can “briefly” exceed (overshoot) the area’s carrying capacity due to: • Reproductive time lag • If it greatly overshoots the carrying capacity, the result is: • Population crash and • Damage may reduce area’s new carrying capacity ...
1
... Therefore the morphology of a fossil group has the greatest importance in paleontology, and the accurate recognition of new species is reliant on stringest methods to identify accurately both differences and similarities in shape and form. ...
... Therefore the morphology of a fossil group has the greatest importance in paleontology, and the accurate recognition of new species is reliant on stringest methods to identify accurately both differences and similarities in shape and form. ...
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.