A General Theory of Clutch Size
... having a certain limited amount of time or energy available for expenditure, and of natural selection as that force which operates in the allocation of this time or energy in a way which maximizes the contribution of a genotype to following generations. This manner of treatment of problems concernin ...
... having a certain limited amount of time or energy available for expenditure, and of natural selection as that force which operates in the allocation of this time or energy in a way which maximizes the contribution of a genotype to following generations. This manner of treatment of problems concernin ...
The Extinction of the Glaucus Macaw
... but when this information is combined with studies of populations of Hyacinth and Lear's Macaws the mystery begins to unravel. From an ecological point of view, the Andorhynchus macaws can be considered as just huge flying heads. These massive heads support enormous bills that are specially designed ...
... but when this information is combined with studies of populations of Hyacinth and Lear's Macaws the mystery begins to unravel. From an ecological point of view, the Andorhynchus macaws can be considered as just huge flying heads. These massive heads support enormous bills that are specially designed ...
Part 2 - Management Plan Rev S - clean version
... from known records and/or expert advice (including the findings of pre-clearance surveys). KP0 to KP30 For the Northern quoll, no individuals were identified during the pre-clearance surveys between KP0 to KP30. However, pre-clearance surveys have identified two areas as containing suitable habitat ...
... from known records and/or expert advice (including the findings of pre-clearance surveys). KP0 to KP30 For the Northern quoll, no individuals were identified during the pre-clearance surveys between KP0 to KP30. However, pre-clearance surveys have identified two areas as containing suitable habitat ...
Comparative studies of terrestrial vertebrates in urban areas
... Neighbourhood parks in US cities are an example of planted patches with similar design and management. Because most cities in the United States follow a standard set of park planning guidelines, neighbourhood parks are similar in size (5 to 10 ha) and typically are designed to serve residents living ...
... Neighbourhood parks in US cities are an example of planted patches with similar design and management. Because most cities in the United States follow a standard set of park planning guidelines, neighbourhood parks are similar in size (5 to 10 ha) and typically are designed to serve residents living ...
white-clawed crayfish
... protocols on survey and disinfection of equipment which must be observed when surveying or working in known white-clawed crayfish habitat. For advice on these please contact NE, EA or DCC or see the EA Guidance on Prevention of Crayfish Plague or the DCC method statement UK DISTRIBUTION Prior to the ...
... protocols on survey and disinfection of equipment which must be observed when surveying or working in known white-clawed crayfish habitat. For advice on these please contact NE, EA or DCC or see the EA Guidance on Prevention of Crayfish Plague or the DCC method statement UK DISTRIBUTION Prior to the ...
Where less may be more: how the rare biosphere pulls
... resistance (Gobet et al., 2012). Many microbes can remain generally inactive and at low density most of the time, only becoming dominant when more favorable conditions arise (Aanderud et al., 2015). Biotic interactions also have also an important role in explaining rarity. An uncompetitive species m ...
... resistance (Gobet et al., 2012). Many microbes can remain generally inactive and at low density most of the time, only becoming dominant when more favorable conditions arise (Aanderud et al., 2015). Biotic interactions also have also an important role in explaining rarity. An uncompetitive species m ...
Approximating Nature`s Variation: Selecting and Using Reference
... All reference information is implicitly time- and space– based: that is, it is about a particular place (a reference site) at a particular time, even if the place and time are broadly or imprecisely defined, the site is no longer an extant natural area, or the historical conditions no longer apply. ...
... All reference information is implicitly time- and space– based: that is, it is about a particular place (a reference site) at a particular time, even if the place and time are broadly or imprecisely defined, the site is no longer an extant natural area, or the historical conditions no longer apply. ...
Flat-tailed Tortoise (Pyxis planicauda)
... habitat is damaged by burning and clearing for agricultural lands, cattle grazing, highway development, mining, and petroleum exploration. Second, the species faces severe threats from human utilization, specifically harvesting for the international pet trade. Third, predation from the introduction ...
... habitat is damaged by burning and clearing for agricultural lands, cattle grazing, highway development, mining, and petroleum exploration. Second, the species faces severe threats from human utilization, specifically harvesting for the international pet trade. Third, predation from the introduction ...
Riparian and Instream Native Flora and Fauna of the Goulburn Broken
... A wide range of native flora and fauna that occur within the Goulburn Broken Catchment rely on aquatic habitats, either directly or indirectly. A complete list of all taxa can be found in the Appendices of the ARI Report Native Aquatic and Riparian Flora and Fauna Resources Paper (2002). Some taxono ...
... A wide range of native flora and fauna that occur within the Goulburn Broken Catchment rely on aquatic habitats, either directly or indirectly. A complete list of all taxa can be found in the Appendices of the ARI Report Native Aquatic and Riparian Flora and Fauna Resources Paper (2002). Some taxono ...
Burdi 1 Sea Star Acrobatics: Testing the
... response. However, none of those studies examined the differences in righting response on different substrata. Eight species of sea stars were used in this study: Three different color variations of Henricia leviuscula (blood red, yellow, and gray arm pitted), Leptasterias hexactis, Pyconopodia hel ...
... response. However, none of those studies examined the differences in righting response on different substrata. Eight species of sea stars were used in this study: Three different color variations of Henricia leviuscula (blood red, yellow, and gray arm pitted), Leptasterias hexactis, Pyconopodia hel ...
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 ...
Non-random biodiversity loss underlies predictable increases in
... this body of work points to the importance of host biodiversity for controlling disease spread via interspecific variability in host competence and vector search efficiency [2,26,32]. The potential for hosts to affect the dynamics of generalist vector-borne parasites (host competence) depends on sev ...
... this body of work points to the importance of host biodiversity for controlling disease spread via interspecific variability in host competence and vector search efficiency [2,26,32]. The potential for hosts to affect the dynamics of generalist vector-borne parasites (host competence) depends on sev ...
virtual-field-trip-to-cu-mt-research-station
... affecting the meadow. They even have thermometers in the soil. What abiotic factors might scientists be studying here? ...
... affecting the meadow. They even have thermometers in the soil. What abiotic factors might scientists be studying here? ...
Information Sheet on Network Sites - East Asian
... • Typha spp. (egra or hogla, Cattail) and some other important threatened species of freshwater wetland trees are available in this haor. ...
... • Typha spp. (egra or hogla, Cattail) and some other important threatened species of freshwater wetland trees are available in this haor. ...
Learning objectives
... succession on glacier moraines in Glacier Bay, Alaska. 27. Describe an example of humans acting as agents of disturbance. Biogeographic Factors Affect Community Biodiversity 28. Explain why species richness declines along an equatorial-polar gradient. 29. Explain the significance of measures of evap ...
... succession on glacier moraines in Glacier Bay, Alaska. 27. Describe an example of humans acting as agents of disturbance. Biogeographic Factors Affect Community Biodiversity 28. Explain why species richness declines along an equatorial-polar gradient. 29. Explain the significance of measures of evap ...
883) What controls the ability of species to respond (by
... 7) Are there alternatives to cattle systems in remote High Nature Value areas that could maintain the conservation benefits that these currently deliver? 8) What are the most effective measures for preventing soil erosion in The Fens? 9) How does the biodiversity impact of a particular land use prac ...
... 7) Are there alternatives to cattle systems in remote High Nature Value areas that could maintain the conservation benefits that these currently deliver? 8) What are the most effective measures for preventing soil erosion in The Fens? 9) How does the biodiversity impact of a particular land use prac ...
Body size distributions in North American freshwater fish: smallscale
... in Maitland (2000) for European fish, ‘typical’ species length is strongly correlated with maximum length (r = 0.96, n = 203, P < 0.001). Although size distributions can be examined at a variety of taxonomic levels, I used the species level for pragmatic reasons (more data are available). Species sta ...
... in Maitland (2000) for European fish, ‘typical’ species length is strongly correlated with maximum length (r = 0.96, n = 203, P < 0.001). Although size distributions can be examined at a variety of taxonomic levels, I used the species level for pragmatic reasons (more data are available). Species sta ...
Please send responses or direct questions to:Andrew J. Wall
... genetic data on interisland movements). On Rota, Mariana fruit bat use primary and secondary limestone forest for roosting and foraging; (Glass and Taisacan 1988). Effective control of unlawful hunting throughout the archipelago through outreach, education, and enforcement measures is required, espe ...
... genetic data on interisland movements). On Rota, Mariana fruit bat use primary and secondary limestone forest for roosting and foraging; (Glass and Taisacan 1988). Effective control of unlawful hunting throughout the archipelago through outreach, education, and enforcement measures is required, espe ...
Macroecological patterns of species richness in parasite assemblages
... organization of parasite assemblages; they are artificial rather than biological entities, but have nevertheless been the subject of many macroecological studies. In fact, the studies discussed later use data from either the component community level or the parasite fauna level; these are at the rel ...
... organization of parasite assemblages; they are artificial rather than biological entities, but have nevertheless been the subject of many macroecological studies. In fact, the studies discussed later use data from either the component community level or the parasite fauna level; these are at the rel ...
Section 5 Existing Terrestrial Environment
... moderate risk of acid sulphate soils occurring within 3 metres of natural soil surface’. As part of the proposed Outer Harbour Development a desktop investigation to assess the potential occurrence of ASS in the disturbance envelope has been undertaken (SKM 2009a) in accordance with the DEC ASS guid ...
... moderate risk of acid sulphate soils occurring within 3 metres of natural soil surface’. As part of the proposed Outer Harbour Development a desktop investigation to assess the potential occurrence of ASS in the disturbance envelope has been undertaken (SKM 2009a) in accordance with the DEC ASS guid ...
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 ...
America`s Fishery Conservation Program Stakeholder
... news releases don't inspire confidence. More outreach to surrounding communities would help avoid misunderstandings CO: 2 primary areas for this. Internally it seems there are differences between programs that create resistance from Service personnel who have review responsibilities. Sportfish resto ...
... news releases don't inspire confidence. More outreach to surrounding communities would help avoid misunderstandings CO: 2 primary areas for this. Internally it seems there are differences between programs that create resistance from Service personnel who have review responsibilities. Sportfish resto ...
Factors Influencing Macroinvertebrate Diversity and Community
... aquatic communities in freshwater rock pools naturally assemble through terrestrial or riverine colonization as the river level drops. These habitats have many advantages for studying factors driving diversity, because they are often locally numerous, vary in both frequency and degree of factors kno ...
... aquatic communities in freshwater rock pools naturally assemble through terrestrial or riverine colonization as the river level drops. These habitats have many advantages for studying factors driving diversity, because they are often locally numerous, vary in both frequency and degree of factors kno ...
Decoys in Predation and Parasitism
... (Pius and Leberg 1998), or information parasitism, where a species may benefit from the alarm raised by others (Nuechterlein 1981), and the decoy effect (Christensen et al. 1976; Vos et al. 2001; Wilkinson, 2001), which itself can take a variety of forms. In its simplest form, the third species, whi ...
... (Pius and Leberg 1998), or information parasitism, where a species may benefit from the alarm raised by others (Nuechterlein 1981), and the decoy effect (Christensen et al. 1976; Vos et al. 2001; Wilkinson, 2001), which itself can take a variety of forms. In its simplest form, the third species, whi ...
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.