What is an edge species? The implications of sensitivity to habitat
... with models that are successful in predicting or understanding the direction of observed edge responses. We presented a model (Fig. 1 in Ries and Sisk 2004) that suggests that organisms should avoid edges with habitats they do not prefer and should ignore edges where habitat quality is equal on both ...
... with models that are successful in predicting or understanding the direction of observed edge responses. We presented a model (Fig. 1 in Ries and Sisk 2004) that suggests that organisms should avoid edges with habitats they do not prefer and should ignore edges where habitat quality is equal on both ...
OUR GARDENS CAN BE GOOD FOR NATURE AND THAT`S GOOD
... We care about wildlife but most of us don’t know how to help. Yet it’s easy and rewarding to bring nature closer to home and everybody can do it. Interest in, and concern for wildlife is almost a national characteristic. But as much as we are aware and concerned, most of us feel powerless to help. I ...
... We care about wildlife but most of us don’t know how to help. Yet it’s easy and rewarding to bring nature closer to home and everybody can do it. Interest in, and concern for wildlife is almost a national characteristic. But as much as we are aware and concerned, most of us feel powerless to help. I ...
perennial pepperweed Lepidium latifolium L.
... Native and current distribution: Perennial pepperweed is native to southeastern Europe and southwestern Asia. It has naturalized throughout Europe and North America. Infestations have also been found in Australia (eFloras 2008). Perennial pepperweed has not been recorded in Alaska. Management Once e ...
... Native and current distribution: Perennial pepperweed is native to southeastern Europe and southwestern Asia. It has naturalized throughout Europe and North America. Infestations have also been found in Australia (eFloras 2008). Perennial pepperweed has not been recorded in Alaska. Management Once e ...
The ecology of Type="Italic">Myrmica ants
... between species. The effective value of R for any colony is a function of nest site quality, which is a combination of the physical characteristics of the site and the resources in the surrounding foraging territory (see below). This type of model was used by Elmes (1973) who showed that it could le ...
... between species. The effective value of R for any colony is a function of nest site quality, which is a combination of the physical characteristics of the site and the resources in the surrounding foraging territory (see below). This type of model was used by Elmes (1973) who showed that it could le ...
40 Anniversary Conference Gesellschaft für Ökologie
... forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more exciting than its official record. I am thus proud to say that the idea of establishing an ecological society as a platform for bringing together people working in the fields of enviro ...
... forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more exciting than its official record. I am thus proud to say that the idea of establishing an ecological society as a platform for bringing together people working in the fields of enviro ...
View PDF - CiteSeerX
... Key Words alternate states, regime shifts, response diversity, complex adaptive systems, ecosystem services ■ Abstract We review the evidence of regime shifts in terrestrial and aquatic environments in relation to resilience of complex adaptive ecosystems and the functional roles of biological diver ...
... Key Words alternate states, regime shifts, response diversity, complex adaptive systems, ecosystem services ■ Abstract We review the evidence of regime shifts in terrestrial and aquatic environments in relation to resilience of complex adaptive ecosystems and the functional roles of biological diver ...
Measuring Biological Diversity
... Very rare species will not be sampled Those less abundant than the critical number are beind the veil line Need to estimate how many there should be there Smaller the sample increased number behind veil ...
... Very rare species will not be sampled Those less abundant than the critical number are beind the veil line Need to estimate how many there should be there Smaller the sample increased number behind veil ...
Sharing the Land with Pinyon-Juniper Birds
... he pinyon-juniper woodland is a widespread ecosystem of the North American West. Estimates of its current extent vary widely, depending on how the habitat is defined and delineated. A recent estimate is 55.6 million acres (22.5 million ha; Mitchell and Roberts 1999). It is widely regarded that the e ...
... he pinyon-juniper woodland is a widespread ecosystem of the North American West. Estimates of its current extent vary widely, depending on how the habitat is defined and delineated. A recent estimate is 55.6 million acres (22.5 million ha; Mitchell and Roberts 1999). It is widely regarded that the e ...
Stoichiometry of nutrient recycling by vertebrates in a tropical stream
... lost from an ecosystem, it is difficult to ascertain whether subsequent changes in ecosystem function result from changes in species richness per se, or to the loss of particular species that have disproportionately strong effects (Power et al. 1996; Huston 1997). Ecologists therefore need quantitat ...
... lost from an ecosystem, it is difficult to ascertain whether subsequent changes in ecosystem function result from changes in species richness per se, or to the loss of particular species that have disproportionately strong effects (Power et al. 1996; Huston 1997). Ecologists therefore need quantitat ...
1. Which of the following is an example of an abiotic factor? A. the
... 40. The flow of carbon from the atmosphere to living organisms and back again. A. denitrifying bacteria ...
... 40. The flow of carbon from the atmosphere to living organisms and back again. A. denitrifying bacteria ...
STATUS OF RARE WOODLAND PLANTS AND LICHENS 1.0
... light from felling or coppicing and semi-permanent or permanent glades or rides are important promoters of diversity. Coppicing produces particularly species rich, if temporary, communities (Rackham, 2003). Coppicing was a fundamental part of the character of lowland woodlands for centuries before ...
... light from felling or coppicing and semi-permanent or permanent glades or rides are important promoters of diversity. Coppicing produces particularly species rich, if temporary, communities (Rackham, 2003). Coppicing was a fundamental part of the character of lowland woodlands for centuries before ...
Ecological Divergence and Reproductive Isolation in an Amazonian
... Neotropical forests have the highest tree diversity on earth, with an estimated 22,000 species. In contrast temperate North America, Europe and Asia combined support only 1,166 tree species. In the western Amazon rainforest, complex patterns of edaphic heterogeneity have been invoked as potential dr ...
... Neotropical forests have the highest tree diversity on earth, with an estimated 22,000 species. In contrast temperate North America, Europe and Asia combined support only 1,166 tree species. In the western Amazon rainforest, complex patterns of edaphic heterogeneity have been invoked as potential dr ...
Report on the conservation status and threats for wolf (Canis lupus
... environments. Wolves can basically survive anywhere they can find a source of food, and this can be of various forms, from wild animals, to livestock, to garbage. The only limiting factor seems to be human persecution. As a result the conservation of wolves is less of an ecological issue and more a ...
... environments. Wolves can basically survive anywhere they can find a source of food, and this can be of various forms, from wild animals, to livestock, to garbage. The only limiting factor seems to be human persecution. As a result the conservation of wolves is less of an ecological issue and more a ...
PDF, 2241 KB - URPP GCB
... Relevance of interdisciplinary dialogue in biodiversity research - a statistician's point of view. 22 Patterns in plant functional traits across the tundra biome over space and time. ........................ 23 Crisis conservation: saving nature in times and spaces of exception...................... ...
... Relevance of interdisciplinary dialogue in biodiversity research - a statistician's point of view. 22 Patterns in plant functional traits across the tundra biome over space and time. ........................ 23 Crisis conservation: saving nature in times and spaces of exception...................... ...
Ch_15_Reforestation_MASTER
... Setting Goals The first step in planning a reforestation project is to think about how it relates to both short- and longterm landowner goals. Such goals might include producing income from timber, improving habitat for specific wildlife species, restoring a natural plant community, reducing soil er ...
... Setting Goals The first step in planning a reforestation project is to think about how it relates to both short- and longterm landowner goals. Such goals might include producing income from timber, improving habitat for specific wildlife species, restoring a natural plant community, reducing soil er ...
Sec. 4.3 Succession Guided Notes - Bloomsburg Area School District
... In 1883, the volcanic island of Krakatau in the Indian Ocean was blown to pieces by an eruption. The tiny island that remained was completely barren. ...
... In 1883, the volcanic island of Krakatau in the Indian Ocean was blown to pieces by an eruption. The tiny island that remained was completely barren. ...
Management of Fish in Ontario - Backgroud Report Supporting
... Ontario has a wide array of aquatic ecosystems that make up 24% of Canada’s freshwater, and include more than 250,000 lakes and countless kilometres of rivers and streams. Seventy-one per cent of these waters flow to Hudson Bay via the Hudson BayJames Bay Basins and the Nelson River Basin, whereas t ...
... Ontario has a wide array of aquatic ecosystems that make up 24% of Canada’s freshwater, and include more than 250,000 lakes and countless kilometres of rivers and streams. Seventy-one per cent of these waters flow to Hudson Bay via the Hudson BayJames Bay Basins and the Nelson River Basin, whereas t ...
PDF
... other confined vessels. They may be fed intensively, such as by pellets, or extensively, in which case they rely on naturally present food. On reaching the marketable size, the crop is harvested. Alternatively, the juveniles may be used for restocking natural waterways depleted by overfishing, pollu ...
... other confined vessels. They may be fed intensively, such as by pellets, or extensively, in which case they rely on naturally present food. On reaching the marketable size, the crop is harvested. Alternatively, the juveniles may be used for restocking natural waterways depleted by overfishing, pollu ...
REGIME SHIFTS, RESILIENCE, AND BIODIVERSITY IN
... Key Words alternate states, regime shifts, response diversity, complex adaptive systems, ecosystem services ■ Abstract We review the evidence of regime shifts in terrestrial and aquatic environments in relation to resilience of complex adaptive ecosystems and the functional roles of biological diver ...
... Key Words alternate states, regime shifts, response diversity, complex adaptive systems, ecosystem services ■ Abstract We review the evidence of regime shifts in terrestrial and aquatic environments in relation to resilience of complex adaptive ecosystems and the functional roles of biological diver ...
The Rise of the Mesopredator
... (habitat and resources) and top-down (apex predator) forces. This approach has been employed nicely in a large-scale study examining the relative influence of apex predators (wolves and lynx) and land-use changes on red fox populations in Sweden (Elmhagen and Rushton 2007). Trade-offs inherent to pr ...
... (habitat and resources) and top-down (apex predator) forces. This approach has been employed nicely in a large-scale study examining the relative influence of apex predators (wolves and lynx) and land-use changes on red fox populations in Sweden (Elmhagen and Rushton 2007). Trade-offs inherent to pr ...
Synthesis of Ecosystem Resources and Threats
... ABSTRACT: Catalina Island‘s oaks provide habitat for a diverse array of plants and animals, many of them rare. The oak ecosystem encompasses a large majority of the island, yet the foundation of this system, the oaks themselves, appear to be in decline. Seaver Institute funds allowed the Catalina Is ...
... ABSTRACT: Catalina Island‘s oaks provide habitat for a diverse array of plants and animals, many of them rare. The oak ecosystem encompasses a large majority of the island, yet the foundation of this system, the oaks themselves, appear to be in decline. Seaver Institute funds allowed the Catalina Is ...
THE ROLE OF INTRODUCED SPECIES IN THE DEGRADATION OF
... Among the alternate hypotheses that we considered for each proposed species interaction were those involving habitat deterioration (24, 66), environmental contaminants (34, 79), introductions of disease organisms (80, 82), alternate predator effects (5), direct human exploitation (96, 97), and compe ...
... Among the alternate hypotheses that we considered for each proposed species interaction were those involving habitat deterioration (24, 66), environmental contaminants (34, 79), introductions of disease organisms (80, 82), alternate predator effects (5), direct human exploitation (96, 97), and compe ...
Plant invasions – the role of mutualisms
... interactions and to propose a conceptual framework for gaining further insights. By definition, all alien plants have benefited through human-aided dispersal to a new region, and very often also through intensive propagation and dissemination within the new region. In this review we ignore mutualism ...
... interactions and to propose a conceptual framework for gaining further insights. By definition, all alien plants have benefited through human-aided dispersal to a new region, and very often also through intensive propagation and dissemination within the new region. In this review we ignore mutualism ...
A global overview on the diet of the dice snake
... distribution and presumably large population size, it is categorised as least concern by IUCN (2012). However, it is considered to be threatened in a number of western and central European states, with low genetic variation in some populations (Gautschi et al. 2002; Guicking et al. 2004) and its wor ...
... distribution and presumably large population size, it is categorised as least concern by IUCN (2012). However, it is considered to be threatened in a number of western and central European states, with low genetic variation in some populations (Gautschi et al. 2002; Guicking et al. 2004) and its wor ...
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.