The difference between the Greater and Lesser Antilles can be
... Even in the absence of phylogenetic information, ecological interactions would be implicated as an important factor affecting anole communities. The regular size patterns in the Lesser Antilles and the absence of sympatric species occupying the same niche on any island (discussed in Chapter 11) impl ...
... Even in the absence of phylogenetic information, ecological interactions would be implicated as an important factor affecting anole communities. The regular size patterns in the Lesser Antilles and the absence of sympatric species occupying the same niche on any island (discussed in Chapter 11) impl ...
Tadpoles, Predation and Pond Habitats in the Tropics METHODS
... of aquatic habitats by frogs with larval stages. Predation by permanent aquatic predators (primarily fish) is considered to be the most important biotic factor influencing the temporal and spatial composition of tadpole communities. The development and maintenance of predatory feeding modes, includi ...
... of aquatic habitats by frogs with larval stages. Predation by permanent aquatic predators (primarily fish) is considered to be the most important biotic factor influencing the temporal and spatial composition of tadpole communities. The development and maintenance of predatory feeding modes, includi ...
Microbial interactions: from networks to models
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
... Box 1 | Community assembly: ecological interactions versus random processes The extent to which ecological interactions between species shape their abundances remains the subject of debate. In his seminal paper on the distribution of bird species across tropical islands, Jared Diamond102 derived com ...
Effects of single-tree selection harvesting on Rose
... declines is important, because much of the hardwood forest in eastern North America, which represents valuable habitat for many songbird species, is currently subject to forest management. Assessments of whether selection harvesting alters habitat quality for declining songbirds typically rely on th ...
... declines is important, because much of the hardwood forest in eastern North America, which represents valuable habitat for many songbird species, is currently subject to forest management. Assessments of whether selection harvesting alters habitat quality for declining songbirds typically rely on th ...
Perennial Herbaceous Biomass Production and Harvest in the
... • Avoid tiling or ditching to drain water from land or in-field low areas that provide important wetland habitat in the early spring. • Be aware of potential resources (food, water, cover) in the surrounding area and, as feasible, plant feedstocks that complement those resources. • Consider using bi ...
... • Avoid tiling or ditching to drain water from land or in-field low areas that provide important wetland habitat in the early spring. • Be aware of potential resources (food, water, cover) in the surrounding area and, as feasible, plant feedstocks that complement those resources. • Consider using bi ...
Long-footed potoroo - recovery plan (PDF
... across its known range, leading to more refined approaches to future protection, maintenance and enhancement of those areas (ie. primarily through development of a targeted prescribed burning strategy), and (iv) investigation of land adjacent to the known distribution to determine its value as habit ...
... across its known range, leading to more refined approaches to future protection, maintenance and enhancement of those areas (ie. primarily through development of a targeted prescribed burning strategy), and (iv) investigation of land adjacent to the known distribution to determine its value as habit ...
Niche Expansion and Contraction in a Variable Environment1
... Because the habitats are quite different in the different portions of the wintering range, I do not compare sparrow densities between sites but only at the same sites, comparing sparrow populations in years of high and low seed production. The migratory habit and winter distribution of Chipping Spar ...
... Because the habitats are quite different in the different portions of the wintering range, I do not compare sparrow densities between sites but only at the same sites, comparing sparrow populations in years of high and low seed production. The migratory habit and winter distribution of Chipping Spar ...
Ragnar Arnason*
... This paper considers the optimal utilization and management of ecosystem fisheries. It is divided into two main sections. In the first section, a general aggregative ecosystem fishery model is developed and its properties analysed. A major result of this part of the paper is that ecosystem fisheries ...
... This paper considers the optimal utilization and management of ecosystem fisheries. It is divided into two main sections. In the first section, a general aggregative ecosystem fishery model is developed and its properties analysed. A major result of this part of the paper is that ecosystem fisheries ...
25. Wildlife Damage to Crops and Livestock
... using damage data for specific wildlife classes (e.g., waterfowl, ungulates [such as deer], and predators) in several regions across Canada. Spatial data on biophysical factors and data from existing wildlife damage records or smallscale surveys of producers will be gathered to build the models. The ...
... using damage data for specific wildlife classes (e.g., waterfowl, ungulates [such as deer], and predators) in several regions across Canada. Spatial data on biophysical factors and data from existing wildlife damage records or smallscale surveys of producers will be gathered to build the models. The ...
0213187 COVER SHEET FOR PROPOSAL TO THE NATIONAL SCIENCE FOUNDATION PD 98-1128 01/10/02
... The search for patterns of community assembly has occupied the last 25 years in community ecology and remains controversial today. A commonly sought assembly rule is that species coexistence in communities will be enhanced by differences in traits related to competition for limiting resources (i.e., ...
... The search for patterns of community assembly has occupied the last 25 years in community ecology and remains controversial today. A commonly sought assembly rule is that species coexistence in communities will be enhanced by differences in traits related to competition for limiting resources (i.e., ...
The Riparian Buffer as a Stormwater Best Management Practice
... and surface soil layers, removing it from runoff; pesticides are formed into gases by the anaerobic conditions in leaf litter and surface soil layers or are taken up as nutrients by plants and trees, removing them from runoff; pesticides are also transformed and biodegraded.24 Buffers have multipl ...
... and surface soil layers, removing it from runoff; pesticides are formed into gases by the anaerobic conditions in leaf litter and surface soil layers or are taken up as nutrients by plants and trees, removing them from runoff; pesticides are also transformed and biodegraded.24 Buffers have multipl ...
Intertidal and Nearshore Rocky Reefs
... rock oysters being collected for food as well as income (Denny and Gaines 2007) (Figure 7.6). Spearfishing is also common in rock pools and shallow intertidal lagoons (Msangameno pers.obs.). Collection of certain sponges, echinoderms and molluscs for medicinal and magical treatment has also been rep ...
... rock oysters being collected for food as well as income (Denny and Gaines 2007) (Figure 7.6). Spearfishing is also common in rock pools and shallow intertidal lagoons (Msangameno pers.obs.). Collection of certain sponges, echinoderms and molluscs for medicinal and magical treatment has also been rep ...
environmental impacts from snowmobile use
... Pollutants from snowmobile emission, including the highly persistent polycyclic aromatic hydrocarbons (PAH), are stored within the snowpack (Ingersoll, 1998). During spring snowmelt, these accumulated pollutants are released causing elevated acidity levels in surrounding waterways and resulting in h ...
... Pollutants from snowmobile emission, including the highly persistent polycyclic aromatic hydrocarbons (PAH), are stored within the snowpack (Ingersoll, 1998). During spring snowmelt, these accumulated pollutants are released causing elevated acidity levels in surrounding waterways and resulting in h ...
Wildlife Populations in the Pacaya
... periods the fish enter the flooded forests and feed on the abundance of vegetative and animal production, especially the abundance of fruits, invertebrates and other living organisms trapped in the annual floods. Indeed, many tree species fruit during this season and rely on the fish as their pri ...
... periods the fish enter the flooded forests and feed on the abundance of vegetative and animal production, especially the abundance of fruits, invertebrates and other living organisms trapped in the annual floods. Indeed, many tree species fruit during this season and rely on the fish as their pri ...
Food web structure of three guilds of natural enemies: predators
... individual plant in the case of herbaceous forbs, a flowering stem in the case of grasses fed on by aphids that congregate on flower spikes, or a 30 cm terminal shoot in the case of shrubs where aphids feed on young growth. On every fortnightly sampling occasion a minimum of 300 units of every plant ...
... individual plant in the case of herbaceous forbs, a flowering stem in the case of grasses fed on by aphids that congregate on flower spikes, or a 30 cm terminal shoot in the case of shrubs where aphids feed on young growth. On every fortnightly sampling occasion a minimum of 300 units of every plant ...
Trophic interactions and range limits: the diverse roles of
... to ‘predators’ and their ‘prey’, but the basic ideas we present pertain to most natural enemy–victim systems.) In distributional ecology, a fundamental distinction is between sites where, over some range of densities, average birth rates exceed average death rates, and sites where birth rates are al ...
... to ‘predators’ and their ‘prey’, but the basic ideas we present pertain to most natural enemy–victim systems.) In distributional ecology, a fundamental distinction is between sites where, over some range of densities, average birth rates exceed average death rates, and sites where birth rates are al ...
Redalyc.Independent effects of grazing and tide pool habitats on the
... Revista Chilena de Historia Natural, vol. 89, 2016, pp. 1-9 Sociedad de Biología de Chile ...
... Revista Chilena de Historia Natural, vol. 89, 2016, pp. 1-9 Sociedad de Biología de Chile ...
Plants & Ecology Range margins and refugia Johan Dahlberg
... species distribution across different spatial scales. In fruitfly experiments it has been shown that interspecific competition alters the distribution and abundance of the species (Davis et al. 1998). Bullock et al. (2000) showed that co-occurrence of two species of Ulex disappeared when studied at ...
... species distribution across different spatial scales. In fruitfly experiments it has been shown that interspecific competition alters the distribution and abundance of the species (Davis et al. 1998). Bullock et al. (2000) showed that co-occurrence of two species of Ulex disappeared when studied at ...
rabbit action plan background paper
... Remnant native vegetation in Victoria has been classified into broad native plant communities termed Ecological Vegetation Classes (EVCs).The majority of existing EVCs within Hume are classified as being Endangered or Vulnerable within the Volcanic Plains Bioregion. The dominant EVCs prior to Europe ...
... Remnant native vegetation in Victoria has been classified into broad native plant communities termed Ecological Vegetation Classes (EVCs).The majority of existing EVCs within Hume are classified as being Endangered or Vulnerable within the Volcanic Plains Bioregion. The dominant EVCs prior to Europe ...
752-4740-1-SP - Oecologia Australis
... questioned the coexistence of species and used the following metaphor to explain his ideas about why they are distributed the way they are.“The face of Nature may be compared to a yielding surface with ten thousand sharp “wedges packed close together and driven inwards with incessant blows, sometime ...
... questioned the coexistence of species and used the following metaphor to explain his ideas about why they are distributed the way they are.“The face of Nature may be compared to a yielding surface with ten thousand sharp “wedges packed close together and driven inwards with incessant blows, sometime ...
Biotic and abiotic factors predicting the global distribution and
... distribution, potential evapotranspiration (PET) and precipitation variables were important predictors of population density on a global scale. In addition, contributing to growing evidence that biotic factors are also important determinants of broad-scale patterns of species distributions, both bio ...
... distribution, potential evapotranspiration (PET) and precipitation variables were important predictors of population density on a global scale. In addition, contributing to growing evidence that biotic factors are also important determinants of broad-scale patterns of species distributions, both bio ...
When everything is not everywhere but species evolve - CERES
... to produce realistic spatio-temporal structures as ecological “habitats” for plankton communities. However, coupling ecological models with highly complex physical models poses several challenges: the dimensionality, the number of parameters and the non-linearity of the system are high, as well as t ...
... to produce realistic spatio-temporal structures as ecological “habitats” for plankton communities. However, coupling ecological models with highly complex physical models poses several challenges: the dimensionality, the number of parameters and the non-linearity of the system are high, as well as t ...
TITLE: It`s a Puma-eat-Deer-eat-Grass World!
... The idea of trophic cascades was first popularized by Hairston, Smith and Slobodkin’s1960 paper introducing the green world hypothesis. They suggest that the world is green because predators reduce the number of herbivores, which allows plants to proliferate. The term “trophic cascade” was coined by ...
... The idea of trophic cascades was first popularized by Hairston, Smith and Slobodkin’s1960 paper introducing the green world hypothesis. They suggest that the world is green because predators reduce the number of herbivores, which allows plants to proliferate. The term “trophic cascade” was coined by ...
(1999) Consequences of the Allee effect for behaviour, ecology and
... or to minimum group size; below this, growth is negative and the population or group is likely to become extinct. The marked differences between logistic growth and growth subject to Allee effects could have a profound influence on the population ecology of many species. The genetic consequences of ...
... or to minimum group size; below this, growth is negative and the population or group is likely to become extinct. The marked differences between logistic growth and growth subject to Allee effects could have a profound influence on the population ecology of many species. The genetic consequences of ...
Potential problems of removing one invasive species at a time
... Porter-Whitaker et al., 2012; Meza-Lopez & Siemann, 2015). Interactions between these co-occurring invaders are of superlative interest for wildlife management because managers can often only control or eradicate a single invasive species at a time (Glen et al., 2013). Without prior knowledge of inv ...
... Porter-Whitaker et al., 2012; Meza-Lopez & Siemann, 2015). Interactions between these co-occurring invaders are of superlative interest for wildlife management because managers can often only control or eradicate a single invasive species at a time (Glen et al., 2013). Without prior knowledge of inv ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.