Chapter4
... Rinderpest: Control The disease was eventually brought under 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 enti ...
... Rinderpest: Control The disease was eventually brought under 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 enti ...
Mutualisms Examples of mutualisms Two degrees of mutualism
... But it received much less attention than competition & predation Is this due to the historically larger number of men? men?.... ...
... But it received much less attention than competition & predation Is this due to the historically larger number of men? men?.... ...
Plant functional types and traits as biodiversity indicators for tropical
... Methods used to assess termites differed somewhat between the two regions, although the area sampled (200 m2) was the same in both cases. In Sumatra, termites were extracted from mounds, plant litter and soil along a 100 m line transect of 2 m width adjacent to the vegetation transect, with one pers ...
... Methods used to assess termites differed somewhat between the two regions, although the area sampled (200 m2) was the same in both cases. In Sumatra, termites were extracted from mounds, plant litter and soil along a 100 m line transect of 2 m width adjacent to the vegetation transect, with one pers ...
Threatened Endangered Extant Extinct Wildlife Species
... • The following codes are used by the Ontario Ministry of Natural Resources (OMNR) and the national Committee on the Status of Endangered Wildlife in Canada (COSEWIC) ...
... • The following codes are used by the Ontario Ministry of Natural Resources (OMNR) and the national Committee on the Status of Endangered Wildlife in Canada (COSEWIC) ...
Feral and Free-Ranging Domestic Cats
... recognized as one of the most widespread and serious threats to the integrity of native wildlife populations and natural ecosystems. Exotic species present special challenges for wildlife managers because their negative impacts on native species are poorly understood by the public to the point that ...
... recognized as one of the most widespread and serious threats to the integrity of native wildlife populations and natural ecosystems. Exotic species present special challenges for wildlife managers because their negative impacts on native species are poorly understood by the public to the point that ...
Fulltext PDF
... world’ [4], are said to be keystone habitat modifiers. The amazing efficiency with which the keystone functions in setting up new ecosystems and food webs by coral skeletons and live oysters have not been fully highlighted. This article reviews the keystone functions of live oysters from all over th ...
... world’ [4], are said to be keystone habitat modifiers. The amazing efficiency with which the keystone functions in setting up new ecosystems and food webs by coral skeletons and live oysters have not been fully highlighted. This article reviews the keystone functions of live oysters from all over th ...
(Pilosa, Myrmecophagidae) REGARDING THE TERMITE DEFENSE
... ABSTRACT: Giant (Myrmecophaga tridactyla) and collared anteaters (Tamandua tetradactyla) are common mammals in the Cerrado biome. They are specialized in eating termites (Isoptera, Blattaria) and ants (Formicidae, Hymenoptera). This study tested the preference of the giant anteater for termites with ...
... ABSTRACT: Giant (Myrmecophaga tridactyla) and collared anteaters (Tamandua tetradactyla) are common mammals in the Cerrado biome. They are specialized in eating termites (Isoptera, Blattaria) and ants (Formicidae, Hymenoptera). This study tested the preference of the giant anteater for termites with ...
Inferring species interactions in ecological communities
... (Paine 1992), hydra species (Case & Bender 1981) or in microbial communities (Vandermeer 1969; McGrady-Steed, Harris & Morin 1997) have not only been giving contrasting results on the relationship between diversity and stability in biological communities (McCann 2000; Ives & Carpenter 2007), but wer ...
... (Paine 1992), hydra species (Case & Bender 1981) or in microbial communities (Vandermeer 1969; McGrady-Steed, Harris & Morin 1997) have not only been giving contrasting results on the relationship between diversity and stability in biological communities (McCann 2000; Ives & Carpenter 2007), but wer ...
A new parameterization for estimating co
... allows the effects of covariates to be specified quite naturally without estimation problems. In our model, the occurrence of one species is assumed to depend on the occurrence of another, but the occurrence of the second species is not assumed to depend on the presence of the first species. This patt ...
... allows the effects of covariates to be specified quite naturally without estimation problems. In our model, the occurrence of one species is assumed to depend on the occurrence of another, but the occurrence of the second species is not assumed to depend on the presence of the first species. This patt ...
Terrestrial vertebrate fauna of the Greater Southern Sydney Region
... This is a joint project between the Sydney Catchment Authority and the Parks and Wildlife Group of the Department of Environment and Climate Change (NSW) This volume has been produced and written by Kylie Madden, Peter Ewin and Daniel Connolly with assistance from Martin Schulz, Elizabeth Magarey an ...
... This is a joint project between the Sydney Catchment Authority and the Parks and Wildlife Group of the Department of Environment and Climate Change (NSW) This volume has been produced and written by Kylie Madden, Peter Ewin and Daniel Connolly with assistance from Martin Schulz, Elizabeth Magarey an ...
Mammals on mountainsides: elevational patterns of diversity
... GEB228.fm Page 102 Tuesday, February 20, 2001 6:38 PM ...
... GEB228.fm Page 102 Tuesday, February 20, 2001 6:38 PM ...
Q1. (a) Explain the meaning of these ecological terms. Population
... population of woodlice. They collected 77 woodlice and marked them before releasing them back into the same area. Later they collected 96 woodlice, 11 of which were marked. (i) ...
... population of woodlice. They collected 77 woodlice and marked them before releasing them back into the same area. Later they collected 96 woodlice, 11 of which were marked. (i) ...
Pairwise interactions between functional groups
... avoid the gruesome task of cutting individual predators into fractions (Table A.1; see also Crowder et al., 2010). All predators were added as adults collected from surrounding vegetation, with the ...
... avoid the gruesome task of cutting individual predators into fractions (Table A.1; see also Crowder et al., 2010). All predators were added as adults collected from surrounding vegetation, with the ...
1 - Universidad Autónoma del Estado de Hidalgo
... restoration was necessary to achieve this objective. The state of degradation, its causes and possible solutions were evaluated through regional and local community workshops. Criteria for selecting restoration techniques and plant species were based on the economic needs of the communities, known u ...
... restoration was necessary to achieve this objective. The state of degradation, its causes and possible solutions were evaluated through regional and local community workshops. Criteria for selecting restoration techniques and plant species were based on the economic needs of the communities, known u ...
Phylogenetic diversity promotes ecosystem stability
... communities would be ones in which species are all equivalently related to one another (Cadotte et al. 2010). Incorporating abundances into these types of metrics changes the interpretation such that highly diverse communities are comprised of evolutionary distinct species that have higher abundance ...
... communities would be ones in which species are all equivalently related to one another (Cadotte et al. 2010). Incorporating abundances into these types of metrics changes the interpretation such that highly diverse communities are comprised of evolutionary distinct species that have higher abundance ...
biolcons_biodiv_loss - digital
... species to threat categories, which for CR species is a 50% probability of extinction in 10 years, for EN a 20% in 20 years, and for VU a 10% in 100 years. The thresholds associated with CR and VU categories were recalculated for a period of 20 years, in order to obtain probability values that could ...
... species to threat categories, which for CR species is a 50% probability of extinction in 10 years, for EN a 20% in 20 years, and for VU a 10% in 100 years. The thresholds associated with CR and VU categories were recalculated for a period of 20 years, in order to obtain probability values that could ...
Effect of Elevation and Type of Habitat on the Abundance and
... Stevens 1992, Rahbek 1995). Lower productivity at higher elevations has been argued to cause such declines in abundance and diversity (Lawton et al. 1987), although no general pattern can be defined (Colwell and Hurtt 1994, Rahbek 1995). Nevertheless, in this work, both abundance and H diversity we ...
... Stevens 1992, Rahbek 1995). Lower productivity at higher elevations has been argued to cause such declines in abundance and diversity (Lawton et al. 1987), although no general pattern can be defined (Colwell and Hurtt 1994, Rahbek 1995). Nevertheless, in this work, both abundance and H diversity we ...
Changes in woody plant composition of three vegetation types
... Murchison Falls National Park, Uganda. Areas identified as having different vegetation types in 1958 were revisited to analyze vegetation changes and to test the prediction that convergence would occur as a result of the regular fire. In each of the three vegetation cover types, a transect was analy ...
... Murchison Falls National Park, Uganda. Areas identified as having different vegetation types in 1958 were revisited to analyze vegetation changes and to test the prediction that convergence would occur as a result of the regular fire. In each of the three vegetation cover types, a transect was analy ...
Marcel Rejmánek at 60 – the man and his work
... Marcel’s fascination with tropical forests began while he was still in Czechoslovakia. His long-standing interest in questions of diversity coupled with the “biological exuberance” of tropical plants really captured his interest. His passion for tropical forests became more concrete after he and Eli ...
... Marcel’s fascination with tropical forests began while he was still in Czechoslovakia. His long-standing interest in questions of diversity coupled with the “biological exuberance” of tropical plants really captured his interest. His passion for tropical forests became more concrete after he and Eli ...
Managing Threatening Processes
... grassy bush are all adapted to fire (Kirkpatrick & Gilfedder 1999), and some species require the use of fire to propagate and perpetuate the species. Fire adaptations include thick bark, thick woody seed capsules, and the ability to re-sprout from woody bases (lignotubers) after a fire (Kirkpatrick ...
... grassy bush are all adapted to fire (Kirkpatrick & Gilfedder 1999), and some species require the use of fire to propagate and perpetuate the species. Fire adaptations include thick bark, thick woody seed capsules, and the ability to re-sprout from woody bases (lignotubers) after a fire (Kirkpatrick ...
Food web assembly rules
... chain of directed pairings where the direction is maintained and the last element connects to the first. A directed pairing represents one nonzero matrix element, whereas a pairing also includes the symmetric element. Empirical food web data. We use high-resolution data on seven food webs including ...
... chain of directed pairings where the direction is maintained and the last element connects to the first. A directed pairing represents one nonzero matrix element, whereas a pairing also includes the symmetric element. Empirical food web data. We use high-resolution data on seven food webs including ...
A declining species has to be added to the official list of endangered
... field studies. The Act provides very specific procedures on how species are to be placed on the list (e.g., listing criteria, public comment periods, hearings, notifications, time limit for final action). These latter requirements are found in the regulations at 50 CFR Part 424. Selection from the l ...
... field studies. The Act provides very specific procedures on how species are to be placed on the list (e.g., listing criteria, public comment periods, hearings, notifications, time limit for final action). These latter requirements are found in the regulations at 50 CFR Part 424. Selection from the l ...
Download poster as a PDF file
... areas to detect incipient weed species which may move into the area. Helicopter landing zones and fencelines are surveyed quarterly. Incidental observations of weeds are noted during other ...
... areas to detect incipient weed species which may move into the area. Helicopter landing zones and fencelines are surveyed quarterly. Incidental observations of weeds are noted during other ...
Growth, regeneration and predation in three species of large coral
... Neofibularia nolitangere, Ircinia strobilina and Agelas clathrodes, growth rates, regeneration efficiencies and aspects of predation were studied. All 3 species showed irregular and unpredictable growth in situ with wide variations in growth rate (including temporal shrinkages) within and among spec ...
... Neofibularia nolitangere, Ircinia strobilina and Agelas clathrodes, growth rates, regeneration efficiencies and aspects of predation were studied. All 3 species showed irregular and unpredictable growth in situ with wide variations in growth rate (including temporal shrinkages) within and among spec ...
Bat research and management in San Diego County
... Bats in the HCP landscape • Bats are mobile, long-lived, have low fecundity – they are likely adaptable to changes and fluctuations in their environment to a degree. • Bats are not evenly distributed throughout the landscape. • Bats tend to be patchily distributed; distribution not easily predicted ...
... Bats in the HCP landscape • Bats are mobile, long-lived, have low fecundity – they are likely adaptable to changes and fluctuations in their environment to a degree. • Bats are not evenly distributed throughout the landscape. • Bats tend to be patchily distributed; distribution not easily predicted ...
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.