Light reduction predicts widespread patterns of dominance between
... beginning of flowering, although floral display was ...
... beginning of flowering, although floral display was ...
native vegetation - Department of Environment Regulation
... Assessment of biodiversity is complex because of the huge number of species, genetic variation within species and associations of species that exist within Western Australian ecosystems. In general, there are only reasonable data on the diversity and distribution of vertebrates, limited data on the ...
... Assessment of biodiversity is complex because of the huge number of species, genetic variation within species and associations of species that exist within Western Australian ecosystems. In general, there are only reasonable data on the diversity and distribution of vertebrates, limited data on the ...
Ecological Focus Areas – Crucial for biodiversity in the agricultural
... maintaining biodiversity and natural resources. From the perspective of nature conservation and environmental protection, the extent, location, spatial configuration and quality of EFA are all crucial factors. It is therefore necessary that EFA are provided at farm level, that the areas are under th ...
... maintaining biodiversity and natural resources. From the perspective of nature conservation and environmental protection, the extent, location, spatial configuration and quality of EFA are all crucial factors. It is therefore necessary that EFA are provided at farm level, that the areas are under th ...
Desirable mathematical properties of indicators for biodiversity change
... Obviously, species richness does not reflect any changes in abundance of species unless species enter or leave the system, thus this metric violates test T1 (monotonicity) and T2 (proportionality) (Tables 2 and 3). Identical species composition produces equal values for species richness and test T3 ( ...
... Obviously, species richness does not reflect any changes in abundance of species unless species enter or leave the system, thus this metric violates test T1 (monotonicity) and T2 (proportionality) (Tables 2 and 3). Identical species composition produces equal values for species richness and test T3 ( ...
Limitations on reproductive success in endemic Aquilegia
... Why many species have restricted endemic distributions whilst their close relatives are more widely distributed has long fascinated plant ecologists, biogeographers and population geneticists. Such interspecific variation in range size can in many cases be clearly associated with geographical barrier ...
... Why many species have restricted endemic distributions whilst their close relatives are more widely distributed has long fascinated plant ecologists, biogeographers and population geneticists. Such interspecific variation in range size can in many cases be clearly associated with geographical barrier ...
Conservation strategy for the Mekong giant catfish
... confirmed by direct observations. Captive breeding. The captive population of MGC maintained by the Thai Department of Fisheries provides a vital ‘insurance’, safeguarding the survival of the species should it become extinct in the wild. The captive population should be managed carefully so as to co ...
... confirmed by direct observations. Captive breeding. The captive population of MGC maintained by the Thai Department of Fisheries provides a vital ‘insurance’, safeguarding the survival of the species should it become extinct in the wild. The captive population should be managed carefully so as to co ...
Effects of biological invasions on forest carbon
... invaders is often more decomposable than native species (e.g. Allison & Vitousek, 2004; Litton et al., 2008), potentially resulting in higher nutrient availability and primary production but also more rapid loss of organic matter from the ecosystem compared with uninvaded systems; the net effects of ...
... invaders is often more decomposable than native species (e.g. Allison & Vitousek, 2004; Litton et al., 2008), potentially resulting in higher nutrient availability and primary production but also more rapid loss of organic matter from the ecosystem compared with uninvaded systems; the net effects of ...
Herpetofauna Biodiversity on Marine Corps Installations
... available) and installation species herpetological surveys or species inventories to identify those species that have been confirmed on the installation. 4. The pre-final list was sent to each installation’s natural resource manager for review and validation before becoming final. This process was f ...
... available) and installation species herpetological surveys or species inventories to identify those species that have been confirmed on the installation. 4. The pre-final list was sent to each installation’s natural resource manager for review and validation before becoming final. This process was f ...
Balanced harvesting in fisheries: a preliminary analysis of
... recruits) would be expressed, with such models being continually improved as their shortcomings were understood and the models augmented (Godbold et al., 2011; Wilen and Wilen, 2012; Planque et al., 2014). This increasing reliance on models in assessments of ecosystem functions and services is true ...
... recruits) would be expressed, with such models being continually improved as their shortcomings were understood and the models augmented (Godbold et al., 2011; Wilen and Wilen, 2012; Planque et al., 2014). This increasing reliance on models in assessments of ecosystem functions and services is true ...
Invasive Predatory Small Mammals on Islands Strategy
... adult birds and take eggs from nest sites. Worldwide, invasive mammal species have lead to the decline, extirpation and/or total extinction of bird and other species through predation and competition. In Europe for example, American mink predation has caused the decimation of seabird colonies and re ...
... adult birds and take eggs from nest sites. Worldwide, invasive mammal species have lead to the decline, extirpation and/or total extinction of bird and other species through predation and competition. In Europe for example, American mink predation has caused the decimation of seabird colonies and re ...
Interspecific interactions through 2 million years: are competitive
... one of the following types: (i) win–lose overgrowths, whenever the growing edge of the winner colony is observed to cover an orifice or orifices of zooids in the losing colony [14,27]; (ii) reciprocal overgrowths, when both competitors mutually overgrow each other; (iii) stand-offs, where two compet ...
... one of the following types: (i) win–lose overgrowths, whenever the growing edge of the winner colony is observed to cover an orifice or orifices of zooids in the losing colony [14,27]; (ii) reciprocal overgrowths, when both competitors mutually overgrow each other; (iii) stand-offs, where two compet ...
session3-b1 (p 21-60).qxp - Winemiller Aquatic Ecology Lab
... account for only 0.01 percent of the earth’s total aquatic habitat. Other major groups dependent upon freshwaters include bacteria, fungi, plants, additional invertebrate taxa, reptiles, birds and mammals. River conservation and management activities in most countries suffer from an inadequate knowl ...
... account for only 0.01 percent of the earth’s total aquatic habitat. Other major groups dependent upon freshwaters include bacteria, fungi, plants, additional invertebrate taxa, reptiles, birds and mammals. River conservation and management activities in most countries suffer from an inadequate knowl ...
Managing Predator-Prey Systems: Summary Discussion
... 2005; Varley and Boyce 2006) and these can be used to achieve sustainable yields. Clearly, however, application of such models will require data on ungulate herds and predator populations. We believe that predator management requires ecosystem management and this must include careful consideration ...
... 2005; Varley and Boyce 2006) and these can be used to achieve sustainable yields. Clearly, however, application of such models will require data on ungulate herds and predator populations. We believe that predator management requires ecosystem management and this must include careful consideration ...
qritique by Paehlke (PDF)
... tive for each of these fields because it implies (in a way that conservation does not) that industrial society as constituted today is both problematic for nature and unlikely to continue in its present form in any case. Sustainability also seems to have found a limited place within everyday public ...
... tive for each of these fields because it implies (in a way that conservation does not) that industrial society as constituted today is both problematic for nature and unlikely to continue in its present form in any case. Sustainability also seems to have found a limited place within everyday public ...
Concepts of species and modes of speciation
... any mechanism to explain the evolutionary change. Although initially he believed in morphological species concept, Buffon prepared the way for biological species concept using sterility barrier (instead of morphological similarities) as species criterion. Later on, the biological species concept was ...
... any mechanism to explain the evolutionary change. Although initially he believed in morphological species concept, Buffon prepared the way for biological species concept using sterility barrier (instead of morphological similarities) as species criterion. Later on, the biological species concept was ...
Understanding co‐occurrence by modelling species simultaneously
... Helmus et al. (2007) used the residuals from an SDM to calculate a co-occurrence index, thereby considering the effect of environmental variables on co-occurrence estimates. Likewise, studies that use SDMs are beginning to consider species interactions by restricting the predicted distribution of one ...
... Helmus et al. (2007) used the residuals from an SDM to calculate a co-occurrence index, thereby considering the effect of environmental variables on co-occurrence estimates. Likewise, studies that use SDMs are beginning to consider species interactions by restricting the predicted distribution of one ...
Priority effects: natives, but not exotics, pay to arrive late
... early planting. We selected species for early planting such that each group of four species contained a dominant native, a dominant exotic, a subdominant native and a subdominant exotic (but a random combination of functional groups). Each group combination was unique (i.e. there were no replicates ...
... early planting. We selected species for early planting such that each group of four species contained a dominant native, a dominant exotic, a subdominant native and a subdominant exotic (but a random combination of functional groups). Each group combination was unique (i.e. there were no replicates ...
10.1 MB - Charles Darwin Foundation
... early protagonist of conservation not only in the Galapagos but in critical areas of every continent, has been awarded the Gold Medal of the World Wildlife Fund. A retrospective look over the Foundation's first 20 years is given in a separate article in this anniversary number. CAPTIVE BREEDING OF G ...
... early protagonist of conservation not only in the Galapagos but in critical areas of every continent, has been awarded the Gold Medal of the World Wildlife Fund. A retrospective look over the Foundation's first 20 years is given in a separate article in this anniversary number. CAPTIVE BREEDING OF G ...
2002 Biodiversity Audit - Department of Parks and Wildlife
... Its parent document, the ‘subregional synopses’ publication, provides a more detailed comparison and contributes to an audit of nature conservation issues Australia-wide. We expect that there will be a range of gaps and omissions in this initial edition, and that the next version (in about two years ...
... Its parent document, the ‘subregional synopses’ publication, provides a more detailed comparison and contributes to an audit of nature conservation issues Australia-wide. We expect that there will be a range of gaps and omissions in this initial edition, and that the next version (in about two years ...
Herbivory in arid and semi-arid regions of Argentina
... Terrestrial herbivory in the Chaco, Monte and Patagonia natural regions of Argentina shows similar patterns to equivalent regions of North America, as well as distinctive features. Peculiarities include the near absence of native large herbivores, the high diversity and abundance of leaf-cuting ants ...
... Terrestrial herbivory in the Chaco, Monte and Patagonia natural regions of Argentina shows similar patterns to equivalent regions of North America, as well as distinctive features. Peculiarities include the near absence of native large herbivores, the high diversity and abundance of leaf-cuting ants ...
Agrobiodiversity: Its Value, Measurement, and Conservation in the
... Species/varietal diversity can be measured in a number of different ways. In ecology, species diversity in communities is the object of measurement (Whittaker, 1965). Communities consist of many coexisting populations, and community boundaries can be difficult to define. In agriculture, crop communi ...
... Species/varietal diversity can be measured in a number of different ways. In ecology, species diversity in communities is the object of measurement (Whittaker, 1965). Communities consist of many coexisting populations, and community boundaries can be difficult to define. In agriculture, crop communi ...
Ecological Succession
... – The series of predictable changes that occurs in a community over time – Primary succession occurs on a surface where no soil exists. Example: bare rock, areas covered by volcanic ash – Secondary succession occurs in an area where a disturbances changes an existing community without destroying the ...
... – The series of predictable changes that occurs in a community over time – Primary succession occurs on a surface where no soil exists. Example: bare rock, areas covered by volcanic ash – Secondary succession occurs in an area where a disturbances changes an existing community without destroying the ...
as a PDF
... Although competition has been invoked as an important determinant of plant species distribution ...
... Although competition has been invoked as an important determinant of plant species distribution ...
Making Predictions in a Changing World: The Benefits of Individual
... trout were already well understood. Drift-feeding (sit-andwait predation, the foraging mode typically used by trout) models had already been shown to predict how water velocity and depth affect fish food intake and swimming speed (e.g., Hughes 1992). Bioenergetics models then link food intake and te ...
... trout were already well understood. Drift-feeding (sit-andwait predation, the foraging mode typically used by trout) models had already been shown to predict how water velocity and depth affect fish food intake and swimming speed (e.g., Hughes 1992). Bioenergetics models then link food intake and te ...
More diverse plant communities have higher functioning over time
... high productivity might be sufficient to guarantee function over time, in which case species turnover would not promote high functioning. The relative importance of these two processes might depend on functional diversity: There will be little complementarity between functionally similar species (19) ...
... high productivity might be sufficient to guarantee function over time, in which case species turnover would not promote high functioning. The relative importance of these two processes might depend on functional diversity: There will be little complementarity between functionally similar species (19) ...
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.