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nsw scientific committee
nsw scientific committee

... population. Generation length reflects the turnover rate of breeding individuals in a population. It is greater than the age at first breeding and less than the age of the oldest breeding individual, except in taxa that breed only once. Where generation length varies under threat, the more natural ( ...
Reinforcing loose foundation stones in trait‑based plant ecology
Reinforcing loose foundation stones in trait‑based plant ecology

... One useful proxy of fitness that is much easier to measure in the field is relative abundance. Trait values associated with greater fitness in a given environment must, on average, correlate positively with the relative abundance of the species possessing them in that environment. A species with a h ...
(k(:i)logia Patterns of variation in life history among
(k(:i)logia Patterns of variation in life history among

... meansfor determiningthe presenceof fishesin clear regions weredefinedasstandardlengthsfalling below the minimum of the reservoir.Two regionswere sampled: a narrow arm length for which a fully gravid individual was observed of the lake directly below an inflow canal (from the Rio among all collection ...
RESPONSE SURFACE EXPERIMENTAL DESIGNS FOR
RESPONSE SURFACE EXPERIMENTAL DESIGNS FOR

... models do fit the data well, a poor choice of experimental design or allocation of effort will make it difficult, if not impossible, to distinguish among the possibilities. The resources and time available will limit the size of any experiment, and thus it is important to consider how effort should ...
Effects of invasive Pacific red lionfish Pterois volitans
Effects of invasive Pacific red lionfish Pterois volitans

... could have detrimental effects on native coral-reef communities in a variety of ways (Albins and Hixon 2011). First, if lionfish reduce the number of juveniles substantially, then they could have a negative effect on realized adult abundances of a wide range of species. Second, lionfish could have s ...
Recreation and Trail Impacts on Wildlife Species
Recreation and Trail Impacts on Wildlife Species

... The purpose of this study is to assess potential impacts of recreation and associated trails on wildlife species of interest at Mt. Spokane State Park, Washington. The scope of the report is narrow, and limited primarily to impacts of trail-based recreational activities at Mt. Spokane State Park, wh ...
Crossing habitat boundaries: coupling dynamics of ecosystems
Crossing habitat boundaries: coupling dynamics of ecosystems

... To understand the impact of habitat productivity on the ecosystem dynamics, four scenarios are investigated. In the first two scenarios, the productivity in one habitat is varied whereas productivity in the other habitat is kept low. In the latter two scenarios, productivity in one habitat is varied ...
Effects of invasive Pacific red lionfish Pterois volitans
Effects of invasive Pacific red lionfish Pterois volitans

... could have detrimental effects on native coral-reef communities in a variety of ways (Albins and Hixon 2011). First, if lionfish reduce the number of juveniles substantially, then they could have a negative effect on realized adult abundances of a wide range of species. Second, lionfish could have s ...
coyote interactions with other carnivores
coyote interactions with other carnivores

... 1950, resulted in a decrease in coyote numbers and a subsequent increase in bobcat, badger (Ta.urdea ramrs), skunk, and fox numbers. This response was believed to be a result of reduced competition for food and not a reduction in predation by coyotes. Similar trends occurred in other western states, ...
Food webs: reconciling the structure and function of biodiversity
Food webs: reconciling the structure and function of biodiversity

... nutrients through ecological systems [6,7]. Whereas community ecology tends to be reductionist, concentrating largely on processes driven by individuals, populations, or species, ecosystem research often takes a more holistic, systems approach. It remains tractable by aggregating species into broad ...
Northern Barrens Tiger Beetle
Northern Barrens Tiger Beetle

... that lives in sandy openings in pine and pine-oak woodlands. Larvae live in burrows within these sandy openings. Adults forage in the same habitat and have a two-year life cycle. This species is a globally rare insect found in eastern North America, with its native range extending from West Virginia ...
landscape-level patterns of avian diversity in the
landscape-level patterns of avian diversity in the

... the most dominant species decreased in abundance, whereas moderately abundant species increased in relative abundance. This resulted in bird communities that were more even in fragmented landscapes. Unlike several other studies, we did not find that the relative strength of fragmentation effects inc ...
california red-legged frog - Solano County Water Agency
california red-legged frog - Solano County Water Agency

... moisture levels. For example, individuals occurring in coastal drainages appear to be active yearround (Jennings, Hayes, and Holland 1992) whereas frogs found in interior sites are less active during the cold season. Bulger et al. (2003), in a movement study of California red-legged frogs in norther ...
Lamprey-Draft-Object..
Lamprey-Draft-Object..

... existing recovery plans, biological opinions, and/or DRERIP life history conceptual models. A standardized table is used for each objective to provide specificity regarding the objective. Terms used in the table such as “Indicator” and “Attribute” are defined in Attachment 1. Additional components o ...
Parasite Abundance and Color-Biased Predation of Fiddler Crabs
Parasite Abundance and Color-Biased Predation of Fiddler Crabs

... function a tool for feeding, prolonging its foraging time (Johnson 2003), leading to the hypothesis that longer feeding time will create more exposure to parasites. The lack of a significant difference in parasite abundance between males and females indicates that accumulation of parasites may not b ...
Discriminating trait-convergence and trait
Discriminating trait-convergence and trait

... fuzzy weighting by the traits is constant or not related to the environmental gradient, i.e., r(XE) 5 0. Thus, by definition, if r(XE) is not null, it may express only TCAP (i.e., r(XE.T) 5 0), only TDAP (i.e., r(TE) 5 0), or both. Further, it should be noted that TCAP is defined when trait convergenc ...
Abundance and diversity of corals inside and outside the territories
Abundance and diversity of corals inside and outside the territories

... This is likely because these are branched corals. If Stegastes nigricans larvae recruit to these corals, they are able to hide from predators among the branches, increasing growth and survival (Danilowicz 1996). A similar association was hypothesized to have occurred between another species of damse ...
Non-Additive Effects of Genotypic Diversity Increase Floral
Non-Additive Effects of Genotypic Diversity Increase Floral

... [14]. Consistent with the concept of extended phenotypes, our results provide evidence that genetic variation in floral abundance is a mechanism for extended effects on flower visitor abundance and richness (through effects on visitation). Genotypes which had produced more flowers at the time of sam ...
Niche segregation in sandy beach animals: an analysis with surface
Niche segregation in sandy beach animals: an analysis with surface

... These tests contrasted three dimensions of species occurrences: (a) differences in spatial distributions across the beach-face irrespective of time (space partitioning), (b) differences in the temporal pattern of surface activity (partitioning of niches in time) and (c) combination of spatial and te ...
Introduction Poaceae (R.Br.) Barnh. is the fourth
Introduction Poaceae (R.Br.) Barnh. is the fourth

... authors identified five types of grass covers for the country and also listed out the forest types whose physical boundaries coincide with these grass covers. The authors also argued that the grasslands of India are edaphic rather than vegetational climaxes and that they are perpetuated through cont ...
Key Threatening Process Nomination Form
Key Threatening Process Nomination Form

... threatened species benefit from the presence of dingoes in the landscape. Saving livestock from predation by dingoes and saving threatened Australian species from predation by recently introduced predators (feral cats and red foxes) and competition from introduced herbivores (European rabbits) are t ...
DEVELOPING THE COST OF LARGE CARNIVORE CONFLICT
DEVELOPING THE COST OF LARGE CARNIVORE CONFLICT

... large carnivores have proven to be among the most difficult groups of mammals to conserve, (Mech, 1995). Their populations have been dramatically reduced during the last 200 years, with their large home range requirements and predatory behavior on both wild prey and livestock bringing them in consta ...
CHANGES IN TURBULENT MIXING SHIFT COMPETITION FOR
CHANGES IN TURBULENT MIXING SHIFT COMPETITION FOR

... Averaged over all depths and sampling stations, turbulent diffusivity equaled D 5 0.17 cm2/s (average(log D) 5 20.78, 1 SD(log D) 5 0.53, N 5 105). After the onset of artificial mixing, the temperature stratification disappeared within a few days (Fig. 2A), and the phytoplankton population was unifo ...
The Significance of Fibrous Foods for Kibale Forest Chimpanzees
The Significance of Fibrous Foods for Kibale Forest Chimpanzees

... species), leaves from mature trees (1 species), seeds (1), flowers (1) and bark (1). This list is certainly incomplete as we have found seeds of at least 20 unidentified fruit species in the dung. We rely principally on dung analysis for comparisons of food intake over time or between populations to ...
BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH
BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH

... increasing local diversity may be system- or biome-specific, or transient, these data complicate conservation arguments based on small-scale BDEF experiments. The fact that exotic species often increase local and regional species diversity underscores the importance of addressing the question raised ...
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Occupancy–abundance relationship

In ecology, the occupancy–abundance (O–A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well-documented relationships in macroecology, and applies both intra- and interspecifically (within and among species). In most cases, the O–A relationship is a positive relationship. Although an O–A relationship would be expected, given that a species colonizing a region must pass through the origin (zero abundance, zero occupancy) and could reach some theoretical maximum abundance and distribution (that is, occupancy and abundance can be expected to co-vary), the relationship described here is somewhat more substantial, in that observed changes in range are associated with greater-than-proportional changes in abundance. Although this relationship appears to be pervasive (e.g. Gaston 1996 and references therein), and has important implications for the conservation of endangered species, the mechanism(s) underlying it remain poorly understood
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