Physical factors affecting the relative abundance
... joined by several smaller rivers, with the largest being the Ottawa River near Montreal. These features render the St. Lawrence River a physically heterogeneous system at multiple spatial scales. Echinogammarus ischnus and G. fasciatus might be segregating along this heterogeneity, thereby minimizin ...
... joined by several smaller rivers, with the largest being the Ottawa River near Montreal. These features render the St. Lawrence River a physically heterogeneous system at multiple spatial scales. Echinogammarus ischnus and G. fasciatus might be segregating along this heterogeneity, thereby minimizin ...
Miombo Ecoregion Vision Report - Biodiversity Foundation for Africa
... based on single species, often driven by the need to respond to dramatic poaching levels of wellknown animal species and to address severe cases of habitat degradation and loss all over the world. While these campaigns were entirely legitimate, they may have inadvertently underemphasized some fundam ...
... based on single species, often driven by the need to respond to dramatic poaching levels of wellknown animal species and to address severe cases of habitat degradation and loss all over the world. While these campaigns were entirely legitimate, they may have inadvertently underemphasized some fundam ...
Cascadia Wildlands
... consider the health of the forests if this fragmentation were to not occur, and the impacts of edge-effects if fragmentation were to occur. The no-action alternative should consider deferring the regeneration harvests until sufficient spotted owl habitat has been restored in the LSR. The no-action a ...
... consider the health of the forests if this fragmentation were to not occur, and the impacts of edge-effects if fragmentation were to occur. The no-action alternative should consider deferring the regeneration harvests until sufficient spotted owl habitat has been restored in the LSR. The no-action a ...
Terrestrial animal tracking as an eye on life and planet
... Fig. 3. Smaller and better tags. Rapid technological development has led to not only a decrease in the size of tags over time (A) but also a dramatic increase in the amount of data returned from each tagged animal (B). VHF tags are conventional “radio-tracking” technology where each animal location ...
... Fig. 3. Smaller and better tags. Rapid technological development has led to not only a decrease in the size of tags over time (A) but also a dramatic increase in the amount of data returned from each tagged animal (B). VHF tags are conventional “radio-tracking” technology where each animal location ...
Weakfish – Full Species Report
... They are most commonly found between New York and North Carolina (Wilk 1979) and there appear to be multiple populations with different life history patterns (NEFSC 2009B), although genetic studies do not support this theory (Crowford et al. 1989; Graves et al. 1993; Cordes and Graves 2003). Weakfis ...
... They are most commonly found between New York and North Carolina (Wilk 1979) and there appear to be multiple populations with different life history patterns (NEFSC 2009B), although genetic studies do not support this theory (Crowford et al. 1989; Graves et al. 1993; Cordes and Graves 2003). Weakfis ...
territorial behavior and population regulation in birds
... may remain at one level for many generations while other species may contain in various parts of their ranges populations at all levels. Similarly single populations may change levels in successive years. Consequently, in general an entire species cannot safely be assigned to one level; statements i ...
... may remain at one level for many generations while other species may contain in various parts of their ranges populations at all levels. Similarly single populations may change levels in successive years. Consequently, in general an entire species cannot safely be assigned to one level; statements i ...
How can we detect introduced mammalian predators in non
... Published online: 7 November 2013 Abstract: Efficient detection techniques will confirm the presence of a species at a site where the species exists, and are essential for effective population monitoring and for assessing the outcome of management programmes. However, detection techniques vary in th ...
... Published online: 7 November 2013 Abstract: Efficient detection techniques will confirm the presence of a species at a site where the species exists, and are essential for effective population monitoring and for assessing the outcome of management programmes. However, detection techniques vary in th ...
Pacific oyster, Crassostrea gigas
... The Pacific oyster is the most cosmopolitan of all oyster species. It has been introduced to 66 countries and has successfully established in 17 countries (Fig 4, Ruesink et al. 2005). Prior success of invasion is one characteristic used to predict species that will become invasive in other contexts ...
... The Pacific oyster is the most cosmopolitan of all oyster species. It has been introduced to 66 countries and has successfully established in 17 countries (Fig 4, Ruesink et al. 2005). Prior success of invasion is one characteristic used to predict species that will become invasive in other contexts ...
Ecology and conservation biology of ground beetles - REAL-d
... the ecology and behaviour of ground beetles. The second part presents a few methodological innovations that may offer potential for the further development of the field. Among them there are field as well as data evaluation methods. The third part concerns life history studies. Knowledge of the biol ...
... the ecology and behaviour of ground beetles. The second part presents a few methodological innovations that may offer potential for the further development of the field. Among them there are field as well as data evaluation methods. The third part concerns life history studies. Knowledge of the biol ...
Overcoming evolutionary history: conditioning the
... be used to rescue BTM from its evoltuionary trap, I will first review and synthesize the literature on evolutionary traps. In particular, I will focus on 1) the causes of evolutionary traps, 2) mechanisms by which evolutionary traps can be escaped, and 3) the likely outcome of a species or populatio ...
... be used to rescue BTM from its evoltuionary trap, I will first review and synthesize the literature on evolutionary traps. In particular, I will focus on 1) the causes of evolutionary traps, 2) mechanisms by which evolutionary traps can be escaped, and 3) the likely outcome of a species or populatio ...
Redacted for privacy - H.J. Andrews Experimental Forest
... the A) dominance preemption model, B) dominance decay model, C) random fraction model and D) random assortment model. Bars represent mean relative species abundance (± 1 standard deviation) of the seven most dominant species (ranked from most to least abundant). Filled circles represent the upper ra ...
... the A) dominance preemption model, B) dominance decay model, C) random fraction model and D) random assortment model. Bars represent mean relative species abundance (± 1 standard deviation) of the seven most dominant species (ranked from most to least abundant). Filled circles represent the upper ra ...
Montastrea cavernosa (Great Star Coral)
... late summer, about a week after a full moon. First to spawn are the male colonies followed soon after by the female colonies; shallow and deep-water colonies spawn at the same time. After fertilization the embryo undergoes planktonic development to its planula form. The planula travels in the open w ...
... late summer, about a week after a full moon. First to spawn are the male colonies followed soon after by the female colonies; shallow and deep-water colonies spawn at the same time. After fertilization the embryo undergoes planktonic development to its planula form. The planula travels in the open w ...
Document
... and patterns of human exploitation have also been cited as increasing the impact of invasive species on islands (Whittaker, 1998; Cronk and Fuller, 2001; Kairo et al., 2005). Whatever the cause, direct and indirect competition of exotics with native species for resources and critical habitat can lea ...
... and patterns of human exploitation have also been cited as increasing the impact of invasive species on islands (Whittaker, 1998; Cronk and Fuller, 2001; Kairo et al., 2005). Whatever the cause, direct and indirect competition of exotics with native species for resources and critical habitat can lea ...
Ontario Moose Resource Report for WMU 01A
... Moose Management in Ontario In Ontario, the moose population and its habitat is managed using an ecological approach. This approach takes into account a wide range of factors related to moose and uses the best available science and information on moose populations and harvest. Ontario’s Cervid Ecolo ...
... Moose Management in Ontario In Ontario, the moose population and its habitat is managed using an ecological approach. This approach takes into account a wide range of factors related to moose and uses the best available science and information on moose populations and harvest. Ontario’s Cervid Ecolo ...
Teacher`s Resource Guide
... Like humans, every animal needs a habitat or home where they can find food, water, cover, and space to raise their young. While the specific requirements may differ from species to species (for instance, depending on the species "cover" could be a house, nest, den, burrow, or a small piece of coral ...
... Like humans, every animal needs a habitat or home where they can find food, water, cover, and space to raise their young. While the specific requirements may differ from species to species (for instance, depending on the species "cover" could be a house, nest, den, burrow, or a small piece of coral ...
The interplay of physical and biotic factors in
... their timing relative to the diversification of predators, from bony fish to crabs to carnivorous snails, build a powerful case for an escalation process driven by extrinsic biotic factors. The interactions may have been quite diffuse – large, heterogeneous sets of species impinging on other large, ...
... their timing relative to the diversification of predators, from bony fish to crabs to carnivorous snails, build a powerful case for an escalation process driven by extrinsic biotic factors. The interactions may have been quite diffuse – large, heterogeneous sets of species impinging on other large, ...
Do we have enough information to apply the
... Deep-water fishing in the Rockall Trough The deep sea off the west coast of Scotland has been exploited since the early 1970s, as reviewed by Gordon (2001) and Gordon et al. (2003). There is a long-established longline fishery for ling (Molva molva), tusk (Brosme brosme) and, to a lesser extent, blue ...
... Deep-water fishing in the Rockall Trough The deep sea off the west coast of Scotland has been exploited since the early 1970s, as reviewed by Gordon (2001) and Gordon et al. (2003). There is a long-established longline fishery for ling (Molva molva), tusk (Brosme brosme) and, to a lesser extent, blue ...
Deterministic and stochastic forces in community ecology:
... Reserve (a nitrogen addition experiment and biodiversity experiment), and find that spatial processes within the experiments’ boundaries significantly affect species’ colonization and extinction rates. Due to the interactions of dispersal limitation and resource competition, each experimental grid a ...
... Reserve (a nitrogen addition experiment and biodiversity experiment), and find that spatial processes within the experiments’ boundaries significantly affect species’ colonization and extinction rates. Due to the interactions of dispersal limitation and resource competition, each experimental grid a ...
Effects of predator richness on prey suppression: a metaanalysis
... (Cardinale et al. 2006). To assess variability in biodiversity effects across individual experiments, we began by tallying positive and negative effects with respect to both LRmean and LRmax, based on means 6 95% confidence intervals. We then used a mixed model to evaluate general mean effect sizes o ...
... (Cardinale et al. 2006). To assess variability in biodiversity effects across individual experiments, we began by tallying positive and negative effects with respect to both LRmean and LRmax, based on means 6 95% confidence intervals. We then used a mixed model to evaluate general mean effect sizes o ...
Slow motion extinction: inbreeding, introgression, and loss in the
... great concern. However, determining the existence of a decline and linking potential causes is often hampered due to insufficient data on population conditions in the past. Low genetic diversity in critically endangered species is of special concern to conservation biologists, as low effective popul ...
... great concern. However, determining the existence of a decline and linking potential causes is often hampered due to insufficient data on population conditions in the past. Low genetic diversity in critically endangered species is of special concern to conservation biologists, as low effective popul ...
Martes martes
... certain wild animal species originating in countries which catch them by means of leghold traps or trapping methods which do not meet international humane trapping standards. In 1995 negotiations began on the Agreement on International Humane Trapping Standards (AIHTS) between the EU, Canada, Russia ...
... certain wild animal species originating in countries which catch them by means of leghold traps or trapping methods which do not meet international humane trapping standards. In 1995 negotiations began on the Agreement on International Humane Trapping Standards (AIHTS) between the EU, Canada, Russia ...
Carrying capacity of large African predators
... Mizutani and Jewell, 1998). The methods used to gather these data varied among studies, however, like Creel and Creel (1996), we did not conduct post-hoc corrections to account for this as it was considered to be too subjective. If more than one density was recorded for an individual species in a de ...
... Mizutani and Jewell, 1998). The methods used to gather these data varied among studies, however, like Creel and Creel (1996), we did not conduct post-hoc corrections to account for this as it was considered to be too subjective. If more than one density was recorded for an individual species in a de ...
An introduction to restoration genetics
... organism can predict the future (and evolutionary theory does not require them to), nor can any organism be optimally adapted for all environmental conditions. Nonetheless, the current genetic composition of a species influences how well its members will adapt to future physical and biotic environme ...
... organism can predict the future (and evolutionary theory does not require them to), nor can any organism be optimally adapted for all environmental conditions. Nonetheless, the current genetic composition of a species influences how well its members will adapt to future physical and biotic environme ...
leaves - The Holden Arboretum
... forests also contribute to the problem, said Mary Topa, Holden’s director of research. The United States loses roughly one million acres of forested land to development every year. Of all the human impacts on forests, development is one of the most significant because of the severity of the land tra ...
... forests also contribute to the problem, said Mary Topa, Holden’s director of research. The United States loses roughly one million acres of forested land to development every year. Of all the human impacts on forests, development is one of the most significant because of the severity of the land tra ...
Conservation Biology for All
... Box 3.3: Ecosystem services and agroecosystems in a landscape context (Teja Tscharntke) 3.5 Mobile Links Box 3.4: Conservation of plant-animal mutualisms (Priya Davidar) Box 3.5: Consequences of pollinator decline for the global food supply (Claire Kremen) 3.6 Nature’s Cures versus Emerging Diseases ...
... Box 3.3: Ecosystem services and agroecosystems in a landscape context (Teja Tscharntke) 3.5 Mobile Links Box 3.4: Conservation of plant-animal mutualisms (Priya Davidar) Box 3.5: Consequences of pollinator decline for the global food supply (Claire Kremen) 3.6 Nature’s Cures versus Emerging Diseases ...
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.