VonHolle_Simberloff_2005 - UCF College of Sciences
... et al. 2005). Our four-year study focuses on the establishment of seedling and adult plants transplanted in two discrete release events. For many plant species, the conditions for establishment are more stringent than the germination stage (Turnbull et al. 2000). We used plants and seedlings as inva ...
... et al. 2005). Our four-year study focuses on the establishment of seedling and adult plants transplanted in two discrete release events. For many plant species, the conditions for establishment are more stringent than the germination stage (Turnbull et al. 2000). We used plants and seedlings as inva ...
Maintaining a landscape that facilitates range shifts for terrestrial
... and many other species to the Americas while the emergence of the Panamanian Isthmus allowed North American species to expand their ranges to South America. Large-scale landscape features surrounded by highly contrasting habitat, such as deserts surrounding mountains, can also create “sky islands.” ...
... and many other species to the Americas while the emergence of the Panamanian Isthmus allowed North American species to expand their ranges to South America. Large-scale landscape features surrounded by highly contrasting habitat, such as deserts surrounding mountains, can also create “sky islands.” ...
Changes in the flora of Thoreau`s Concord
... Hosmer, so we have not analyzed his plant list separately. Later in the paper, however, we discuss his practice of introducing new plants into Concord. Richard Eaton recorded the most comprehensive flora of Concord (Eaton, 1974). His flora was based on decades of fieldwork extending from the 1920s t ...
... Hosmer, so we have not analyzed his plant list separately. Later in the paper, however, we discuss his practice of introducing new plants into Concord. Richard Eaton recorded the most comprehensive flora of Concord (Eaton, 1974). His flora was based on decades of fieldwork extending from the 1920s t ...
Differences in diet between two rodent species, Mastomys
... (2005) reported that Gerbilliscus vicinus is omnivorous, but seeds were the most preferred diet category (mean contribution of 50.4%), followed by arthropods (25.7%), with other plant materials such as leaf, roots and stems being important during very dry periods. The feeding ecology of M. natalensi ...
... (2005) reported that Gerbilliscus vicinus is omnivorous, but seeds were the most preferred diet category (mean contribution of 50.4%), followed by arthropods (25.7%), with other plant materials such as leaf, roots and stems being important during very dry periods. The feeding ecology of M. natalensi ...
Alberta Invasive Alien Species Management Framework
... The management of invasive species also requires the expertise and support of other departments, organizations and agencies without direct linkages to managing land use. For example, Alberta Culture and Community Spirit provide taxonomic expertise and specimen archives through the provincial network ...
... The management of invasive species also requires the expertise and support of other departments, organizations and agencies without direct linkages to managing land use. For example, Alberta Culture and Community Spirit provide taxonomic expertise and specimen archives through the provincial network ...
Mutualism or cooperation among competitors promotes coexistence
... In the Lotka-Volterra competition model and similar competition models, species can only coexist if between-species competition is weaker than within species. Prior modeling and field studies have shown that coexistence can be promoted by reducing the competitive ability between species through spat ...
... In the Lotka-Volterra competition model and similar competition models, species can only coexist if between-species competition is weaker than within species. Prior modeling and field studies have shown that coexistence can be promoted by reducing the competitive ability between species through spat ...
pdf. - Evolution and Ecology | UC Davis
... in size along different morphological axes. The use of a geometric mean of the linear measures allowed us to capture some of the shape variation associated with size. We measured the morphological characters listed above because each has predictable consequences for performance in ecologically relev ...
... in size along different morphological axes. The use of a geometric mean of the linear measures allowed us to capture some of the shape variation associated with size. We measured the morphological characters listed above because each has predictable consequences for performance in ecologically relev ...
The challenge posed by newly discovered cryptic species
... DNA screening (e.g. Arlettaz et al., 1997a; Mayer et al., 2007). In 2001, a new cryptic species of long-eared bat, Plecotus macrobullaris, was discovered (Kiefer & Veith, 2001; Spitzenberger et al., 2002, 2003). This species bears a striking resemblance to two of its sibling species, Plecotus auritu ...
... DNA screening (e.g. Arlettaz et al., 1997a; Mayer et al., 2007). In 2001, a new cryptic species of long-eared bat, Plecotus macrobullaris, was discovered (Kiefer & Veith, 2001; Spitzenberger et al., 2002, 2003). This species bears a striking resemblance to two of its sibling species, Plecotus auritu ...
Conservation benefits of marine reserves for fish populations
... many fish populations have declined sharply due to intensive fishing (Russ, 1991; Roberts & Hawkins, 1999). Conservation in these areas is particularly challenging, because many coastal dwellers rely on fishing for employment, food and income and because the data needed to implement population-based ...
... many fish populations have declined sharply due to intensive fishing (Russ, 1991; Roberts & Hawkins, 1999). Conservation in these areas is particularly challenging, because many coastal dwellers rely on fishing for employment, food and income and because the data needed to implement population-based ...
Greater Crested Tern
... the marine environment is another threat, along with the disturbance of nests that can be caused unintentionally by inquisitive tourists and fishermen, or intentionally during acts of vandalism. ...
... the marine environment is another threat, along with the disturbance of nests that can be caused unintentionally by inquisitive tourists and fishermen, or intentionally during acts of vandalism. ...
Mollusks : Carnegie Museum of Natural History
... reaching 9mm diameter and did not oviposit until at least 13mm. In the wild these snails matured in their second or third summer. In a captive colony this snail burrowed into soil, gravel, or decayed wood and laid eggs 2-3mm in diameter at a depth of 1.5 to 2.5cm. The number of eggs laid by an indiv ...
... reaching 9mm diameter and did not oviposit until at least 13mm. In the wild these snails matured in their second or third summer. In a captive colony this snail burrowed into soil, gravel, or decayed wood and laid eggs 2-3mm in diameter at a depth of 1.5 to 2.5cm. The number of eggs laid by an indiv ...
The Hymenopteran subfamily Adeliinae (Braconidae)
... 1.1 The order Hymenoptera One of the most species rich orders of insects is Hymenoptera with approximately 115 000 described species (Grissell 1999) placing them only behind Coleopterans (beetles) and Lepidopterans (butterflies). However, there are estimates that there could be as many as 1 000 000 ...
... 1.1 The order Hymenoptera One of the most species rich orders of insects is Hymenoptera with approximately 115 000 described species (Grissell 1999) placing them only behind Coleopterans (beetles) and Lepidopterans (butterflies). However, there are estimates that there could be as many as 1 000 000 ...
Biocultural Diversity and Foothill Oak Woodlands
... and native animals and plants worldwide (not just in California) are suffering an unprecedented, human-induced die-off. Extinction rates at present are between 1,000 and 10,000 times the rate they were before humans began to exert such significant pressure on the environment (Wilson, 2002). Since th ...
... and native animals and plants worldwide (not just in California) are suffering an unprecedented, human-induced die-off. Extinction rates at present are between 1,000 and 10,000 times the rate they were before humans began to exert such significant pressure on the environment (Wilson, 2002). Since th ...
What Limits Your Species
... Introduce the concept of carrying capacity: Carrying capacity refers to the size of a population that can live indefinitely in an environment without doing that environment any harm. This applies to plants, animals or people. If the carrying capacity of the environment is exceeded, organisms die a ...
... Introduce the concept of carrying capacity: Carrying capacity refers to the size of a population that can live indefinitely in an environment without doing that environment any harm. This applies to plants, animals or people. If the carrying capacity of the environment is exceeded, organisms die a ...
The Natural History of Endemic Families and Subfamilies of Birds of
... be found either in spiny forests, evergreen forests, or deciduous forests. For example, among the ground-rollers, there is one species limited to the dry deciduous forests of the extreme southwest (Uratelornis chimaera) and four in the eastern part of the island (Atelornis pittoides, A. crossleyi, G ...
... be found either in spiny forests, evergreen forests, or deciduous forests. For example, among the ground-rollers, there is one species limited to the dry deciduous forests of the extreme southwest (Uratelornis chimaera) and four in the eastern part of the island (Atelornis pittoides, A. crossleyi, G ...
Patterns of Biodiversity III
... b. Habitat heterogeneity hypothesis: A landscape with more habitats can hold more species; so perhaps the tropics have more habitats than the temperate zone. This is certainly the case, as they both have tundra, grassland, desert, evergreen, and deciduous forest, while the tropics add rain forest, c ...
... b. Habitat heterogeneity hypothesis: A landscape with more habitats can hold more species; so perhaps the tropics have more habitats than the temperate zone. This is certainly the case, as they both have tundra, grassland, desert, evergreen, and deciduous forest, while the tropics add rain forest, c ...
Fitness and physiology in a variable environment
... the manuscript, we will refer to this value as the standardized annual fitness. A positive standardized annual fitness value means that a species did better than its own long-term average in a particular year by a certain percentage or proportion. Likewise, negative standardized annual fitness indic ...
... the manuscript, we will refer to this value as the standardized annual fitness. A positive standardized annual fitness value means that a species did better than its own long-term average in a particular year by a certain percentage or proportion. Likewise, negative standardized annual fitness indic ...
niche principles and 4 case studies
... Community = a set of populations occupying same area If interspecific competition has been a strong force affecting the niches used within a community, then the members of a guild should not have heavily overlapping niches, at any given location. A given species might occupy different niche in diffe ...
... Community = a set of populations occupying same area If interspecific competition has been a strong force affecting the niches used within a community, then the members of a guild should not have heavily overlapping niches, at any given location. A given species might occupy different niche in diffe ...
corridors may not improve the conservation value of small reserves
... travel corridors to avoid crossing clearcuts. Adult and juvenile birds of some species used the buffer strips as corridors, but this use declined as the clearcuts regenerated (Machtans et al. 1996, Robichaud et al., in press). An a priori prediction of the Calling Lake Fragmentation project was that ...
... travel corridors to avoid crossing clearcuts. Adult and juvenile birds of some species used the buffer strips as corridors, but this use declined as the clearcuts regenerated (Machtans et al. 1996, Robichaud et al., in press). An a priori prediction of the Calling Lake Fragmentation project was that ...
creating an instant wildflower meadow
... technical information sheet LINDUM WILDFLOWER FOR LANDSCAPING ...
... technical information sheet LINDUM WILDFLOWER FOR LANDSCAPING ...
Evaluation of methods for analysing and modelling changes in
... even meaningless, to develop universal criteria for diversity indices. Indeed, when first proposed, diversity indices were used for quantifying ecological changes, e.g. to compare the diversity of different-sizes islands or tropical to boreal regions (MacArthur, 1957; 1965). As Gray & Pearson (1982) ...
... even meaningless, to develop universal criteria for diversity indices. Indeed, when first proposed, diversity indices were used for quantifying ecological changes, e.g. to compare the diversity of different-sizes islands or tropical to boreal regions (MacArthur, 1957; 1965). As Gray & Pearson (1982) ...
The DNA of coral reef biodiversity: predicting and protecting genetic
... Known for their stunning arrays of colours, shapes and life forms, coral reefs are captivating examples of extreme biodiversity. Hidden within the taxonomic and life-history diversity found on reefs, but no less important, is the genetic diversity carried within individuals and populations. Genetic ...
... Known for their stunning arrays of colours, shapes and life forms, coral reefs are captivating examples of extreme biodiversity. Hidden within the taxonomic and life-history diversity found on reefs, but no less important, is the genetic diversity carried within individuals and populations. Genetic ...
Effects of water pulsing on individual performance and competitive
... Bilbrough & Caldwell 1997), but response to water pulses for non-agricultural plants has not been tested. 2. Are species from different points along a natural resource supply gradient differentially affected by pulse frequency and/or total resource quantity? Crick & Grime (1987) and Campbell & Grime ...
... Bilbrough & Caldwell 1997), but response to water pulses for non-agricultural plants has not been tested. 2. Are species from different points along a natural resource supply gradient differentially affected by pulse frequency and/or total resource quantity? Crick & Grime (1987) and Campbell & Grime ...
When can two plant species facilitate each other`s pollination?
... presence of a second species will increase the rate of pollinator visitation to a focal species, but not whether increased pollination will elevate the growth rate or prolong the persistence of the focal population. In this paper, we define pollination facilitation as an increase in the population g ...
... presence of a second species will increase the rate of pollinator visitation to a focal species, but not whether increased pollination will elevate the growth rate or prolong the persistence of the focal population. In this paper, we define pollination facilitation as an increase in the population g ...
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.