PDF file - Pan-American Journal of Aquatic Sciences
... (Barletta & Barletta-Bergan 2009; Giarrizzo & Krumme 2009). However, R. bahiensis remains poorly understood in freshwater and estuarine habitats in comparison to the congeneric species R. amazonica, which has been recorded in many previous studies (Barletta et al. 2005; Giarrizzo & Krumme 2009; Barl ...
... (Barletta & Barletta-Bergan 2009; Giarrizzo & Krumme 2009). However, R. bahiensis remains poorly understood in freshwater and estuarine habitats in comparison to the congeneric species R. amazonica, which has been recorded in many previous studies (Barletta et al. 2005; Giarrizzo & Krumme 2009; Barl ...
Using Natural Range of Variation to Set Decision Thresholds: A
... distribution, this does not mean that a given ecological variable will have a normal distribution. Thus, caution should be exercised when using parameters describing a normal distribution (mean, standard deviation) to describe the NRV of an ecological variable. Consequently, as with any quantitative ...
... distribution, this does not mean that a given ecological variable will have a normal distribution. Thus, caution should be exercised when using parameters describing a normal distribution (mean, standard deviation) to describe the NRV of an ecological variable. Consequently, as with any quantitative ...
intermediate disturbance hypothesis
... patches. Similarly, Hastings (1980) and Abugov (1982) used patch-based models of IDH; in these cases disturbance occurred in patches so small they were occupied by single species or species-types. Petraitis et al. (1989) examined disturbance-mediated coexistence in detail, and concluded that IDH wou ...
... patches. Similarly, Hastings (1980) and Abugov (1982) used patch-based models of IDH; in these cases disturbance occurred in patches so small they were occupied by single species or species-types. Petraitis et al. (1989) examined disturbance-mediated coexistence in detail, and concluded that IDH wou ...
The 2005 Vermont Acid Lake Biomonitoring Program Water Quality Division Heather Pembrook (
... during snowmelt. Young larvae were more susceptible than older larvae at that time (Gorham and Vodopich 1992). Metals and acidity also can interact to alter the toxicity of either or both (e.g., Havens 1994a).” (USEPA 2001). The biometrics of relative abundance (density), species richness, and diver ...
... during snowmelt. Young larvae were more susceptible than older larvae at that time (Gorham and Vodopich 1992). Metals and acidity also can interact to alter the toxicity of either or both (e.g., Havens 1994a).” (USEPA 2001). The biometrics of relative abundance (density), species richness, and diver ...
Climate Change and Fish Communities: A Conceptual Framework
... likely to operate in an altered climate. The framework presented here is based on the view that ecological communities are open systems; patterns and processes observed in local assemblages are determined not only by local, contemporary mechanisms acting within assemblages, but also result from proc ...
... likely to operate in an altered climate. The framework presented here is based on the view that ecological communities are open systems; patterns and processes observed in local assemblages are determined not only by local, contemporary mechanisms acting within assemblages, but also result from proc ...
Belgium - Convention on Migratory Species
... 2007) for mandatory use by Parties, for reports submitted to the Tenth Meeting of the Conference of the Parties (COP10) (Norway, 2011). The questions below combine elements of Resolution 4.1 (Party Reports) adopted by the Fourth Meeting of the Conference of the Parties (Nairobi, June 1994) and Resol ...
... 2007) for mandatory use by Parties, for reports submitted to the Tenth Meeting of the Conference of the Parties (COP10) (Norway, 2011). The questions below combine elements of Resolution 4.1 (Party Reports) adopted by the Fourth Meeting of the Conference of the Parties (Nairobi, June 1994) and Resol ...
Testing aggregation hypotheses among Neotropical trees and
... Abstract: Spatial patterns of tropical trees and shrubs are important to understanding their interaction and the resultant structure of tropical rainforests. To assess this issue, we took advantage of previously collected data, on Neotropical tree and shrub stem identified to species and mapped for ...
... Abstract: Spatial patterns of tropical trees and shrubs are important to understanding their interaction and the resultant structure of tropical rainforests. To assess this issue, we took advantage of previously collected data, on Neotropical tree and shrub stem identified to species and mapped for ...
COSSARO classifications from March 24-25 and
... The Lake Sturgeon is one of the largest species of freshwater fish in Canada. It is a long-lived and late-maturing bottom-dwelling fish. These sturgeons occur widely in large lakes and rivers from the Saskatchewan River drainage in Alberta to the Hudson Bay and St. Lawrence River drainages in Quebec ...
... The Lake Sturgeon is one of the largest species of freshwater fish in Canada. It is a long-lived and late-maturing bottom-dwelling fish. These sturgeons occur widely in large lakes and rivers from the Saskatchewan River drainage in Alberta to the Hudson Bay and St. Lawrence River drainages in Quebec ...
25 4. RESEARCH ARTICLE OIL PALM EXPANSION
... dominated landscapes in tropical realms, generally made up of isolated old-growth forest remnants surrounded by an agricultural matrix, offer differing ecological niches for local biota (Ricketts et al. 2001). The ecological consequences of these land transformations are greatly variable, depending ...
... dominated landscapes in tropical realms, generally made up of isolated old-growth forest remnants surrounded by an agricultural matrix, offer differing ecological niches for local biota (Ricketts et al. 2001). The ecological consequences of these land transformations are greatly variable, depending ...
Distribution pattern of the green alga Codium fragile (Suringar
... habitats where native algae have been harvested for food, the activity created major gaps in the community structure where opportunistic algae expanded their abundance within the community. Codium fragile not only becomes a dominant canopy species in disturbed habitats, but it also colonizes new hab ...
... habitats where native algae have been harvested for food, the activity created major gaps in the community structure where opportunistic algae expanded their abundance within the community. Codium fragile not only becomes a dominant canopy species in disturbed habitats, but it also colonizes new hab ...
Evaluating the “recovery level” of endangered species without prior
... observed during 9 years. As these sites were located near the original mongoose release point, we assumed that endemic species had been locally extirpated by long-term high predation pressure from the mongoose and still had not recolonized. Second, we estimated the carrying capacities of endemics at ...
... observed during 9 years. As these sites were located near the original mongoose release point, we assumed that endemic species had been locally extirpated by long-term high predation pressure from the mongoose and still had not recolonized. Second, we estimated the carrying capacities of endemics at ...
Shifting dominance among Scarid species on reefs representing a
... reef fisheries (Dalzell 1996). While all Scarids are herbivorous (algae grazers), with an exception for the bumphead parrotfish Bolbometopon muricatum which significantly feeds on live coral (Belwood et al. 2003), they display a variety of life history traits. In particular, the average and maximum ...
... reef fisheries (Dalzell 1996). While all Scarids are herbivorous (algae grazers), with an exception for the bumphead parrotfish Bolbometopon muricatum which significantly feeds on live coral (Belwood et al. 2003), they display a variety of life history traits. In particular, the average and maximum ...
Intra-guild competition and its implications for one of the biggest
... and there is evidence for both active predation and latestage carcass consumption (probable scavenging) by dromaeosaurs [31]. In modern-day ecosystems, carcasses are typically a rare, widely dispersed and unpredictable resource, and competition among scavengers is often seen as a form of scramble co ...
... and there is evidence for both active predation and latestage carcass consumption (probable scavenging) by dromaeosaurs [31]. In modern-day ecosystems, carcasses are typically a rare, widely dispersed and unpredictable resource, and competition among scavengers is often seen as a form of scramble co ...
SHIFTING PARADIGMS OF THE EVOLUTION OF CAVE LIFE
... Strengthening of the Neo-Darwinian Paradigm of TroglomorphY Most of the evidence for natural selection and adaptation in Barr, Christiansen, and Poulson’s studies was indirect, using the comparative approach. Culver et al. (1995) used a more direct approach, and measured the intensity of natural sel ...
... Strengthening of the Neo-Darwinian Paradigm of TroglomorphY Most of the evidence for natural selection and adaptation in Barr, Christiansen, and Poulson’s studies was indirect, using the comparative approach. Culver et al. (1995) used a more direct approach, and measured the intensity of natural sel ...
The Upper Great Lakes Plain
... Conservation Plans (BCPs), of which this document is one. Recommendations in the plans are based upon sound science and consensus among interested ...
... Conservation Plans (BCPs), of which this document is one. Recommendations in the plans are based upon sound science and consensus among interested ...
Species, trophic, and functional diversity in marine
... and Polychaeta. We grouped fish according to their taxonomical family (mainly Sparidae, Serranidae, and Labridae, but also some Sciaenidae) and body size, so each family is divided in three groups, small, medium and large. Sarpa salpa was quantified in separate groups, apart from the rest of the Spari ...
... and Polychaeta. We grouped fish according to their taxonomical family (mainly Sparidae, Serranidae, and Labridae, but also some Sciaenidae) and body size, so each family is divided in three groups, small, medium and large. Sarpa salpa was quantified in separate groups, apart from the rest of the Spari ...
The effect of human disturbance on the local distribution of American
... more complex techniques. The classification and regression tree models performed well, and were the easiest models to implement and interpret making them an ideal choice for such analyses. My results indicated that human disturbance affects the local distributional patterns of American Oystercatcher ...
... more complex techniques. The classification and regression tree models performed well, and were the easiest models to implement and interpret making them an ideal choice for such analyses. My results indicated that human disturbance affects the local distributional patterns of American Oystercatcher ...
The macroecology of Southeast-Asian
... approaches already had a flourishing period in the 1960's and 70's (for example with the works of F.W. Preston and R.M. May) before the interest in the analysis of large-scale ecological patterns was recently revived (Brown 1999). As elaborately pointed out by B.A. Maurer (1999), the 'macroscopic pe ...
... approaches already had a flourishing period in the 1960's and 70's (for example with the works of F.W. Preston and R.M. May) before the interest in the analysis of large-scale ecological patterns was recently revived (Brown 1999). As elaborately pointed out by B.A. Maurer (1999), the 'macroscopic pe ...
Foothill Yellow-Legged Frog (Rana boylii)
... Foothill yellow-legged frogs are stream-dwelling amphibians that require shallow, flowing water in small to moderate-sized perennial streams with at least some cobble-sized substrate (Hayes and Jennings 1988, Jennings 1988). This species has also been found in perennial streams without cobble (Fitch ...
... Foothill yellow-legged frogs are stream-dwelling amphibians that require shallow, flowing water in small to moderate-sized perennial streams with at least some cobble-sized substrate (Hayes and Jennings 1988, Jennings 1988). This species has also been found in perennial streams without cobble (Fitch ...
Effects of neighboring organisms on the growth of three intertidal
... aperta and Schizoporella serialis) living in association with the neighbors showed significant reduction in growth as compared to their isolated counterparts (Fig. 2 and t-test results). The third bryozoan species, Watersipora subovoidea, was found to be least affected by the contact of neighbors (F ...
... aperta and Schizoporella serialis) living in association with the neighbors showed significant reduction in growth as compared to their isolated counterparts (Fig. 2 and t-test results). The third bryozoan species, Watersipora subovoidea, was found to be least affected by the contact of neighbors (F ...
plant element occurrence external field form data dictionary
... factors. An integrated measure of the quality of biotic and abiotic factors, structures, and processes surrounding the Element Occurrence (EO), and the degree to which they affect the continued existence of the occurrence. Components of this factor are: • landscape structure and extent surrounding t ...
... factors. An integrated measure of the quality of biotic and abiotic factors, structures, and processes surrounding the Element Occurrence (EO), and the degree to which they affect the continued existence of the occurrence. Components of this factor are: • landscape structure and extent surrounding t ...
Experimental evolution of protozoan traits in response to
... conditions for 24 h (3–6 generations) to diminish the role of phenotypic plasticity, because of environmental or maternal effects, before measuring traits. Measurement of traits At the onset of the selection experiment, four traits of Colpoda were measured: cell size, cell speed, peak population den ...
... conditions for 24 h (3–6 generations) to diminish the role of phenotypic plasticity, because of environmental or maternal effects, before measuring traits. Measurement of traits At the onset of the selection experiment, four traits of Colpoda were measured: cell size, cell speed, peak population den ...
Biodiversity, productivity and the temporal stability of
... (Balvanera et al. 2006; Hector & Bagchi 2007; Gamfeldt et al. 2008), few studies have considered how processes influence both biodiversity and ecosystem services (Srivastava & Vellend 2005). There are at least two types of overyielding mechanisms that may similarly influence biodiversity, productivi ...
... (Balvanera et al. 2006; Hector & Bagchi 2007; Gamfeldt et al. 2008), few studies have considered how processes influence both biodiversity and ecosystem services (Srivastava & Vellend 2005). There are at least two types of overyielding mechanisms that may similarly influence biodiversity, productivi ...