article - Aquatic Invasions
... compounds (Pinto et al. 2015). Approximately 50 % of Port Jackson’s shoreline has been replaced by artificial seawalls (Chapman and Bulleri 2003), and 22 % of the total area of the estuary has been reclaimed (Birch et al. 2007; Birch et al. 2010). As a result of the historical pollution in the estua ...
... compounds (Pinto et al. 2015). Approximately 50 % of Port Jackson’s shoreline has been replaced by artificial seawalls (Chapman and Bulleri 2003), and 22 % of the total area of the estuary has been reclaimed (Birch et al. 2007; Birch et al. 2010). As a result of the historical pollution in the estua ...
carrying capacity literature reviews
... developed to determine present and potential pastoral productivity of arid and semiarid regions. This model bases its calculations on soil-water availability to determine the land sustainability so that land resources are used within their capability. This model is terrestrial based; however, the sa ...
... developed to determine present and potential pastoral productivity of arid and semiarid regions. This model bases its calculations on soil-water availability to determine the land sustainability so that land resources are used within their capability. This model is terrestrial based; however, the sa ...
The peppered moth and industrial melanism
... on melanism in Lepidoptera in general and the peppered moth in particular (Kettlewell, 1956, 1973). He had a formidable knowledge of Lepidoptera (Berry, 1990) and made his own independent research plans (Rudge, 2006, 2010), but many of his experiments and observations echo Ford’s theoretical preoccu ...
... on melanism in Lepidoptera in general and the peppered moth in particular (Kettlewell, 1956, 1973). He had a formidable knowledge of Lepidoptera (Berry, 1990) and made his own independent research plans (Rudge, 2006, 2010), but many of his experiments and observations echo Ford’s theoretical preoccu ...
Save the Rays Maryland FAQ
... “Species other than large sharks also prey on cownose rays though it was [incorrectly] asserted that large sharks are the only significant source of predation mortality. For example, cownose rays were found in 9% of cobia stomachs in Chesapeake Bay, a higher proportion than published diet studies fo ...
... “Species other than large sharks also prey on cownose rays though it was [incorrectly] asserted that large sharks are the only significant source of predation mortality. For example, cownose rays were found in 9% of cobia stomachs in Chesapeake Bay, a higher proportion than published diet studies fo ...
Sage-Grouse and Indirect Interactions: Potential Implications of
... 2002, Springeret al. 2003, Ripple and Beschta 2004, Knight et al. 2005). Consequently, the importance of predators to the management of ecosystems is receiving increased attention (Estes 1996, Terborgh et al. 1999, Bergeret al. 2001, Carroll et al. 2001, Hebblewhite et al. 2005), especially because ...
... 2002, Springeret al. 2003, Ripple and Beschta 2004, Knight et al. 2005). Consequently, the importance of predators to the management of ecosystems is receiving increased attention (Estes 1996, Terborgh et al. 1999, Bergeret al. 2001, Carroll et al. 2001, Hebblewhite et al. 2005), especially because ...
Scavenging: how carnivores and carrion structure communities
... stabilizing force in many food webs [8]. For maximum stability, multi-channel feeding should occur high in webs [8], as scavenging does. Furthermore, because scavengers feed on multiple prey species, they make webs more reticulate, which can stabilize food webs [20]. Thus, the type and number of fee ...
... stabilizing force in many food webs [8]. For maximum stability, multi-channel feeding should occur high in webs [8], as scavenging does. Furthermore, because scavengers feed on multiple prey species, they make webs more reticulate, which can stabilize food webs [20]. Thus, the type and number of fee ...
Molecular identification and feeding ecology of arthropod generalist predators present in
... under field conditions. When these molecular methods were used to identify the hoverfly and the Orius species present in Mediterranean lettuce crops, it was shown that Eupeodes corollae, Episyrphus balteatus and Sphaerophoria scripta/S. rueppellii together with O. laevigatus, O. majusculus and O. ni ...
... under field conditions. When these molecular methods were used to identify the hoverfly and the Orius species present in Mediterranean lettuce crops, it was shown that Eupeodes corollae, Episyrphus balteatus and Sphaerophoria scripta/S. rueppellii together with O. laevigatus, O. majusculus and O. ni ...
Gene Section CYP2A6 (cytochrome P450, family 2, subfamily A, polypeptide 6)
... CYP2A6 shows large interindividual and interethnic variations in its expression levels and conversion activities, which are mainly attributed to CYP2A6 genetic polymorphisms. These alleles are derived from single nucleotide polymorphisms in the regulatory and coding regions, deletion mutations and c ...
... CYP2A6 shows large interindividual and interethnic variations in its expression levels and conversion activities, which are mainly attributed to CYP2A6 genetic polymorphisms. These alleles are derived from single nucleotide polymorphisms in the regulatory and coding regions, deletion mutations and c ...
potential mechanisms underlying the displacement of native red
... red-legged frog larvae in replicated artificial ponds. These ponds were located in a field at the Oregon State University Agricultural Station (6.4 km east of Corvallis, Benton County, Oregon, USA). Experiments were conducted during the natural breeding season of red-legged frogs, from 6 February to ...
... red-legged frog larvae in replicated artificial ponds. These ponds were located in a field at the Oregon State University Agricultural Station (6.4 km east of Corvallis, Benton County, Oregon, USA). Experiments were conducted during the natural breeding season of red-legged frogs, from 6 February to ...
14. Diversity of Life in the Coastal Bays
... Otters in the wild act as a ‘flagship’ species for their wetland habitats, a yardstick by which to measure the health and vitality of the ecosystem. However, otters easily fall prey to car collisions, water pollution, and urban sprawl. They are also hunted, although their commercial harvest is regul ...
... Otters in the wild act as a ‘flagship’ species for their wetland habitats, a yardstick by which to measure the health and vitality of the ecosystem. However, otters easily fall prey to car collisions, water pollution, and urban sprawl. They are also hunted, although their commercial harvest is regul ...
View Document - bison-m
... shorter timescale (once the threats are imminent) than for species with lower magnitude threats. Because we do not routinely quantify how likely or how soon extinction would be expected to occur absent listing, we must evaluate factors that contribute to the likelihood and time scale for extinction. ...
... shorter timescale (once the threats are imminent) than for species with lower magnitude threats. Because we do not routinely quantify how likely or how soon extinction would be expected to occur absent listing, we must evaluate factors that contribute to the likelihood and time scale for extinction. ...
stability of terrestrial ecosystems as to pest organisms
... they get out of birds’ vision, and germinate. The protective role of the form and the structure of an acorn surface were described by M.G. Kholodnyi (1941). This is a case of cooperation of CESPPs 2.1.2.3.1. "Supertolerance to herbivores" with 2.1.1.2.1.1.1. "Antibiosis to herbivores, Structural, Pe ...
... they get out of birds’ vision, and germinate. The protective role of the form and the structure of an acorn surface were described by M.G. Kholodnyi (1941). This is a case of cooperation of CESPPs 2.1.2.3.1. "Supertolerance to herbivores" with 2.1.1.2.1.1.1. "Antibiosis to herbivores, Structural, Pe ...
reprint - Anderson lab - University of Georgia
... annual plants that represent sister taxa, to assess whether their divergent phenotypes reflect responses to spatially variable selection. Clarkia xantiana ssp. xantiana and C. x. ssp. parviflora have parapatric distributions in the southern Sierra Nevada of California. The combined geographic range ...
... annual plants that represent sister taxa, to assess whether their divergent phenotypes reflect responses to spatially variable selection. Clarkia xantiana ssp. xantiana and C. x. ssp. parviflora have parapatric distributions in the southern Sierra Nevada of California. The combined geographic range ...
Behavioural ecology of the black-flanked rock
... decline in its distribution in Western Australia. This has been attributed to introduced predators (predominantly the red fox) and herbivores, fire, and habitat destruction due to clearing. Although since 2001 the Department of Environment and Conservation (DEC) had begun to reintroduce this species ...
... decline in its distribution in Western Australia. This has been attributed to introduced predators (predominantly the red fox) and herbivores, fire, and habitat destruction due to clearing. Although since 2001 the Department of Environment and Conservation (DEC) had begun to reintroduce this species ...
PDF COPY
... reductions in other forms of mortality but rather increases overall mortality rate. For compensatory mortality, additional risk of death causes a reduction in other forms of mortality so that overall mortality either does not change or is less than it would be if additive. Generally, when an ungulat ...
... reductions in other forms of mortality but rather increases overall mortality rate. For compensatory mortality, additional risk of death causes a reduction in other forms of mortality so that overall mortality either does not change or is less than it would be if additive. Generally, when an ungulat ...
Lourenco_with_editor_changes - DIGITAL.CSIC, el repositorio
... Stoner, 2003; Donadio & Buskirk, 2006; Hunter & Caro, 2008; Sergio & Hiraldo, 2008). This has ...
... Stoner, 2003; Donadio & Buskirk, 2006; Hunter & Caro, 2008; Sergio & Hiraldo, 2008). This has ...
pest control: rodents - DigitalCommons@University of Nebraska
... and damage electronics, and consume or contaminate stored food and other commodities. Rodents sometimes prey on the eggs or young of wild birds and compete with native wildlife species for food or habitat, and thus have become important concerns in the management and recovery of threatened or endan ...
... and damage electronics, and consume or contaminate stored food and other commodities. Rodents sometimes prey on the eggs or young of wild birds and compete with native wildlife species for food or habitat, and thus have become important concerns in the management and recovery of threatened or endan ...
Problem: American Elk - The International Mathematical Modeling
... Manitoba elk population within the GSMNP lies in prevention of what had formerly driven the previous inhabitants, the Eastern Elk, to extinction – over-poaching. Since population growth is limited by deaths, we can increase quantity by either eliminating elk predators from the region by translocatin ...
... Manitoba elk population within the GSMNP lies in prevention of what had formerly driven the previous inhabitants, the Eastern Elk, to extinction – over-poaching. Since population growth is limited by deaths, we can increase quantity by either eliminating elk predators from the region by translocatin ...
Facilitation in the conceptual melting pot
... effectively restrict A. arenaria, the grass becomes both dominant and invasive. In a similar vein, Van der Heijden & Horton’s (2009) review examines the mediating role of another group of soil organisms, namely mycorrhizal fungi. They also find evidence of context-specificity for the nature of their m ...
... effectively restrict A. arenaria, the grass becomes both dominant and invasive. In a similar vein, Van der Heijden & Horton’s (2009) review examines the mediating role of another group of soil organisms, namely mycorrhizal fungi. They also find evidence of context-specificity for the nature of their m ...
recovery potential assessment for atlantic whitefish
... Atlantic whitefish can occur as either anadromous or freshwater resident populations. Former anadromous adults were typically larger (up to 50 cm in fork length [FL] and 3.6 kg in weight) than of freshwater resident specimens (usually less than 30 cm in FL). The maximum age for individuals in the ex ...
... Atlantic whitefish can occur as either anadromous or freshwater resident populations. Former anadromous adults were typically larger (up to 50 cm in fork length [FL] and 3.6 kg in weight) than of freshwater resident specimens (usually less than 30 cm in FL). The maximum age for individuals in the ex ...
International Conference on Holobionts-abstractspdf
... One of the mechanisms that may govern hologenomic homeostasis is niche specialisation and competitive exclusion of microbes in roles important for the holobiont (Zilber-Rosenberg et al 2008; Bordenstein & Theis 2015). This seems to be maintained even in the presence of horizontal gene transfer which ...
... One of the mechanisms that may govern hologenomic homeostasis is niche specialisation and competitive exclusion of microbes in roles important for the holobiont (Zilber-Rosenberg et al 2008; Bordenstein & Theis 2015). This seems to be maintained even in the presence of horizontal gene transfer which ...
Report on the conservation status and threats for wolf (Canis lupus
... The wolf is the most controversial predator in Europe, as it occupies conflicting places in people’s imaginations, being simultaneously loved and hated. On one hand it is held up as symbol of wilderness and the return of nature, while for others wolves symbolise waste, destruction and negative chang ...
... The wolf is the most controversial predator in Europe, as it occupies conflicting places in people’s imaginations, being simultaneously loved and hated. On one hand it is held up as symbol of wilderness and the return of nature, while for others wolves symbolise waste, destruction and negative chang ...
Interspecific Competition Between Two Invasive Species of
... et al. 1989, Barrera 1996), rather than composite measures of population growth. Any single Þtness component is unlikely to provide an accurate evaluation of competitive ability (Grill and Juliano 1996). Composite indices of performance (Livdahl 1982, Juliano 1998) combine individual Þtness paramete ...
... et al. 1989, Barrera 1996), rather than composite measures of population growth. Any single Þtness component is unlikely to provide an accurate evaluation of competitive ability (Grill and Juliano 1996). Composite indices of performance (Livdahl 1982, Juliano 1998) combine individual Þtness paramete ...