A GENERAL HYPOTHESIS OF SPECIES DIVERSITY Many
... among competitors, and thus the maintenance of diversity. When competitive equilibrium is prevented by fluctuating conditions, population reductions, or other factors, diversity among competitors should be strongly influenced by the rate of competitive displacement. Diversity should be high for comm ...
... among competitors, and thus the maintenance of diversity. When competitive equilibrium is prevented by fluctuating conditions, population reductions, or other factors, diversity among competitors should be strongly influenced by the rate of competitive displacement. Diversity should be high for comm ...
effects of habitat quality on the abundance, behaviour and
... also constrained by the capacity of an animal to use different types of sensorial information (e.g. Ali 1978, Rice 1983), differences in hunting behaviour are also expected from predators using visual or acoustic signals to detect their prey (e.g. Andersson 1981a, Rice 1983, Bye et al. 1992, Anderss ...
... also constrained by the capacity of an animal to use different types of sensorial information (e.g. Ali 1978, Rice 1983), differences in hunting behaviour are also expected from predators using visual or acoustic signals to detect their prey (e.g. Andersson 1981a, Rice 1983, Bye et al. 1992, Anderss ...
Density and Gorgonian Host-occupation Patterns by Flamingo
... P. homomalla, and Pseudoplexaura porosa were occupied more than expected, while Gorgonia ventalina was occupied in proportion to its abundance. Pseudopterogorgia americana and other gorgonians were underoccupied, even when relatively abundant. Except for P. homomalla, C. gibbosum density was only we ...
... P. homomalla, and Pseudoplexaura porosa were occupied more than expected, while Gorgonia ventalina was occupied in proportion to its abundance. Pseudopterogorgia americana and other gorgonians were underoccupied, even when relatively abundant. Except for P. homomalla, C. gibbosum density was only we ...
biological resource analysis
... Ranch project site (herein referred to as the “project site”) located on Corona Road in the City of Petaluma, California (Figures 1, 2 and 3). The purpose of our analysis is to provide a description of existing biological resources on the project site and to identify potentially significant impacts ...
... Ranch project site (herein referred to as the “project site”) located on Corona Road in the City of Petaluma, California (Figures 1, 2 and 3). The purpose of our analysis is to provide a description of existing biological resources on the project site and to identify potentially significant impacts ...
The Caucasus Hotspot Briefing Book
... One of the most biologically rich regions on Earth, the Caucasus is among the planet’s 25 most diverse and endangered hotspots. The Caucasus is one of WWF’s Global 200 Ecoregions, identified as globally outstanding for biodiversity. The Caucasus has also been named a large herbivore hotspot by WWF’s ...
... One of the most biologically rich regions on Earth, the Caucasus is among the planet’s 25 most diverse and endangered hotspots. The Caucasus is one of WWF’s Global 200 Ecoregions, identified as globally outstanding for biodiversity. The Caucasus has also been named a large herbivore hotspot by WWF’s ...
fires, ecological effects of
... burn, fire influences the distribution and abundance of many species. Some ecosystems are dominated by species that depend on fire to complete their life cycles. Others are dominated by species that tolerate burning but have no direct dependence on fire. Ecosystems that seldom or never burn, except when ...
... burn, fire influences the distribution and abundance of many species. Some ecosystems are dominated by species that depend on fire to complete their life cycles. Others are dominated by species that tolerate burning but have no direct dependence on fire. Ecosystems that seldom or never burn, except when ...
Conference program and abstracts. International - CITA-A
... example is a guiding principle for excellence in science - both for scientists and for science organizations. ...
... example is a guiding principle for excellence in science - both for scientists and for science organizations. ...
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
... Natural reproduction of the red-eared slider in Europe under Mediterranean climate conditions has been reported (Global Invasive Species Database, 2009). Currently this species is introduced as breeding in many countries, especially in Mediterranean countries (France, Greece, Italy, Portugal, and Sp ...
... Natural reproduction of the red-eared slider in Europe under Mediterranean climate conditions has been reported (Global Invasive Species Database, 2009). Currently this species is introduced as breeding in many countries, especially in Mediterranean countries (France, Greece, Italy, Portugal, and Sp ...
Wildlife Species Descriptions - University of Arkansas Division of
... of shrubs and trees and store cuttings in caches (piles of branches) for use during winter. The ecological benefits provided by beavers cannot be overstated. Beavers are responsible for creating habitat for many species of birds, mammals, reptiles, amphibians, fish, and invertebrates. Without beaver ...
... of shrubs and trees and store cuttings in caches (piles of branches) for use during winter. The ecological benefits provided by beavers cannot be overstated. Beavers are responsible for creating habitat for many species of birds, mammals, reptiles, amphibians, fish, and invertebrates. Without beaver ...
Spatial Ecology of Wolverines in Scandinavia
... 5. Which topographic elements are crucial to suitability of natal den sites, at which spatial scale are these selected, and can variation in reproductive frequency from different denning localities be related to specific habitat characteristics? ...
... 5. Which topographic elements are crucial to suitability of natal den sites, at which spatial scale are these selected, and can variation in reproductive frequency from different denning localities be related to specific habitat characteristics? ...
Stemming the tide
... about 500 mm at the southern limit of the area considered here as northern Australia). Across this area, rainfall is highly seasonal, with c. 80-90 % falling in a relatively short wet season (ca. November to April). Temperatures are typically high year-round, but peak in the wet season. The monsoona ...
... about 500 mm at the southern limit of the area considered here as northern Australia). Across this area, rainfall is highly seasonal, with c. 80-90 % falling in a relatively short wet season (ca. November to April). Temperatures are typically high year-round, but peak in the wet season. The monsoona ...
The Role of Bankside Habitat in River Ecology
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
Pages 16-144 - South Atlantic Fishery Management Council
... influenced by tide, salinity, nutrients and temperature. The saltmarsh can be a stressful environment to plants and animals, with rapid changes occurring in these abiotic variables (Gosselink 1980; Gosselink et al. 1974). Although species diversity may be lower than in other systems, the saltmarsh i ...
... influenced by tide, salinity, nutrients and temperature. The saltmarsh can be a stressful environment to plants and animals, with rapid changes occurring in these abiotic variables (Gosselink 1980; Gosselink et al. 1974). Although species diversity may be lower than in other systems, the saltmarsh i ...
Climate Change and Alpine Vegetation Shifts on Mountaintop
... Global temperatures have risen with c.a. 0.85 °C during the past century and are predicted to increase even further at an accelerated rate in the coming decades. These changes in the climate system are having a profound impact on the distribution and composition of plant communities. Mountain ecosys ...
... Global temperatures have risen with c.a. 0.85 °C during the past century and are predicted to increase even further at an accelerated rate in the coming decades. These changes in the climate system are having a profound impact on the distribution and composition of plant communities. Mountain ecosys ...
Appendix 2 - City of Stirling
... of extinction, or otherwise in need of special protection, and have been gazetted as such. Priority One - Poorly known Taxa Taxa which are known from one or a few (generally <5) populations which are under threat, either due to small population size, or being on lands under immediate threat, e.g. ro ...
... of extinction, or otherwise in need of special protection, and have been gazetted as such. Priority One - Poorly known Taxa Taxa which are known from one or a few (generally <5) populations which are under threat, either due to small population size, or being on lands under immediate threat, e.g. ro ...
8th International Dormouse Conference
... any kind of disturbance that may impact on the species at population level, requiring surveys to be carried out before any major changes in land use occur (road building for example). In turn, that means we are beginning to learn a lot more about their distribution at local level. Previous dormouse ...
... any kind of disturbance that may impact on the species at population level, requiring surveys to be carried out before any major changes in land use occur (road building for example). In turn, that means we are beginning to learn a lot more about their distribution at local level. Previous dormouse ...
Miombo Ecoregion Vision Report - Biodiversity Foundation for Africa
... Figure 1. The Miombo Ecoregion and southern Africa (from WWF SARPO 2003). The primary and direct impacts on the ecoregion come from the large and rapidly growing human population and its demand for agricultural land. Large areas of dry woodland, unlike moist forests, can be more easily converted to ...
... Figure 1. The Miombo Ecoregion and southern Africa (from WWF SARPO 2003). The primary and direct impacts on the ecoregion come from the large and rapidly growing human population and its demand for agricultural land. Large areas of dry woodland, unlike moist forests, can be more easily converted to ...
Seamounts Report Vol 2
... seamounts of the South West Indian Ridge. The first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natu ...
... seamounts of the South West Indian Ridge. The first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natu ...
Bogs and Wetlands Factsheet
... By the Mesolithic period (8,000 BP) human activity appears to have started to change this landscape. Burning was used to clear the edges of woodland to encourage foraging animals like deer for hunting. This enabled small patches of blanket bog to expand into the heath and wet grassland. The tree lin ...
... By the Mesolithic period (8,000 BP) human activity appears to have started to change this landscape. Burning was used to clear the edges of woodland to encourage foraging animals like deer for hunting. This enabled small patches of blanket bog to expand into the heath and wet grassland. The tree lin ...
What is an edge species? The implications of sensitivity to habitat
... ranking species as to their edge sensitivity and determining the circumstances under which they exhibit edge responses should be a focus of future edge research. However, even if no unifying characteristics can be found, simply knowing that certain species tend to ignore edges will be helpful in und ...
... ranking species as to their edge sensitivity and determining the circumstances under which they exhibit edge responses should be a focus of future edge research. However, even if no unifying characteristics can be found, simply knowing that certain species tend to ignore edges will be helpful in und ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.