Pacific Conservation Biology. Sweeney, O. An Australian perspective on rewilding. Conservation Biology. IF: 4.
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What should we do with wild dogs? Taxonomic tangles and the management of dingo-dog hybridisation. Australian Zoologist. Demise of the dingo. Austral Ecology Hot Topic 44, Nimmo, D. Biological Reviews 94, — IF: Social identity shapes support for management of wildlife and pests. Biological Conservation , — Smith, B.
Taxonomic status of the Australian dingo: the case for Canis dingo Meyer, Zootaxa , — Ripple, W. Conservation Letters e IF: 7. Gabriele-Rivet, V. M , Ward, M. A scoping review of dingo and wild-living dog ecology and biology in Australia to inform parameterisation for disease spread modelling. Frontiers in Veterinary Science 6, Mammal Review 49, 31— Wolf, C. Large species within carnivora are large carnivores. Royal Society Open Science 5, Carnivore conservation needs evidence-based livestock protection.
PLoS Biology 16, e Managing conflict between large carnivores and livestock. Conservation Biology 32, 26— Reply to Pincheira-Donoso and Hodgson: Both the largest and smallest vertebrates have elevated extinction risk. BioScience 68, — M, The Coevolution of Wolves and Humans. BioScience 68, — IF Driscoll, D. A biodiversity-crisis hierarchy to evaluate and refine conservation indicators. Human behaviors determine the direct and indirect impacts of free-ranging dogs on wildlife.
Journal of Mammalogy 99, — Shifting public values and what they mean for increasing democracy in wildlife management decisions. Biodiversity and Conservation 26, — Spencer, E. Prey selection and dietary flexibility of three species of mammalian predator during an irruption of non-cyclic prey. Royal Society Open Science 4, BioScience 67, — Reply to Kalinkat et al. Proceedings of the National Academy of Sciences , — M, Van Eeden, L.
Food waste is still an underappreciated threat to wildlife. Animal Conservation 20, — Featured in BBC. Effects of common carp on the reproduction, growth, and survival of centrarchids. The role of common carp Cyprinus carpio in aquatic ecosystems is complex, involving direct and indirect pathways.
Program in Ecology and Evolutionary Biology at the University of Illinois
Our past research has shown that common carp can increase turbidity, decrease macrophyte cover and macroinvertebrate biomass, and alter zooplankton demographics. We conducted a series of pond experiments in 0. In our first experiment, common carp did not influence the reproductive success of either centrarchid species.
Largemouth bass and bluegill reproduction was equally successful in treatments with and without carp. However, abundance of young largemouth bass after d was lower in enclosures without carp, due to increased predation from adult largemouth bass. In a second experiment, common carp were found to reduce growth of young bluegill and young and adult largemouth bass.
Survival of young bass was higher in enclosures with carp but lower when adult largemouth bass were present. Neither carp nor adult largemouth bass influenced bluegill survival. The direct and indirect effects of common carp on aquatic environments have important implications to the ecology and management of fish communities that inhabit similar waters.
Long-term response of photosynthesis to elevated carbon dioxide in a florida scrub-oak ecosystem. The response of photosynthesis was analyzed during canopy closure in a Florida scrub-oak ecosytem exposed to elevated [CO 2 ] current plus mol mol Species were measured on six occasions during the third and fourth year of exposure to elevated [CO 2 ] while the canopy was closing. The entire regrowth cycle of this community has been under elevated [CO 2 ], providing a rare opportunity to assess the differential responses of species during the critical phase of canopy closure.
Measurements were taken in order to determine both season-specific and species-specific differences in the response of photosynthesis to elevated [CO 2 ]. Photosynthesis was measured with an open-gas exchange system and in vivo rates of carboxylation and electron transport were derived to assess acclimation in photosynthetic capacity in the two co-dominants, both evergreen oaks.
Quercus geminata leaves showed a progressive loss of photosynthetic capacity due to elevated [CO 2 ] following formation in the spring. A third oak, Q.
This reveals that at the critical phase of canopy closure in a woody community, elevation of [CO 2 ] causes a substantial change in the capacity of the current co-dominants to acquire carbon and energy, with important implication for fitness and future composition of this major community type. Manipulating avian predation on stream fish.
Jeff Steinmetz, Department of Animal Biology. To examine the impacts of avian predators on streams, we manipulated predation rates of piscivorous birds in two streams at Midewin National Tallgrass Prairie, Illinois, U. Three treatments were used netted areas to reduce predation, control areas for natural predation, and areas with perches to increase kingfisher predation. Treatments were replicated four times, and each experimental unit was m2. There were significant differences in the number of kills by great blue herons and belted kingfishers between treatments.
The main effect on fish was size-selective predation on minnow species. This range corresponds to the preferred size class of kingfishers and is well within the prey range of great blue herons.
Thus there appears to be both selective predation on certain species, and size-selective predation within those species. Contrasting the functional roles of adult and juvenile crayfish in a warmwater stream. Species traits including diet, habitat use, abundance, individual growth rates, and vulnerability to predators are known to change with ontogeny for many organisms. Juvenile and adult crayfish differ in their diet and in other traits that may influence their respective roles in stream communities.
I investigated effects of adult and juvenile crayfish Orconectes propinquus on other benthic invertebrates in a shaded Illinois stream. The following treatments were maintained for 20 days in 0. Densities of Chironomidae, Tabanidae, and Elmidae were reduced in the presence of crayfish, whereas Caenidae and Heptageniidae showed positive responses to some crayfish treatments. Adult-only and juvenile-only treatments generated equivalent effects on most invertebrate taxa. This result was unexpectedin a previous laboratory predation experiment, juveniles consumed far more prey invertebrates per capita than did adult crayfish.
Combined effects of juveniles and adults in enclosures tended to be weaker than predicted given the magnitude of adult-only and juvenile-only effects. We conducted a three-year study on the demography of trees of multiple species ranging in size from seedlings to large adults to assess the predictability of primary forest succession on meandering river bends.
As river bends meander, they create new land on which primary succession occurs. In this study, we use repeated surveys of transects to determined if patterns of seedling establishment along the point bar are consistent from year to year, and in what way variables correlated with elevation, soil texture, and light limit the survival of seedlings to a particular segment of the point bar.
Also, we used a projection matrix model, based on estimations of demographic parameters from a repeated survey of tree maps, to predict patterns of species abundance along chronosequences leading from different segments of the point bar. These predictions were compared to patterns initially observed in the field to determine whether or not patterns of species abundance along the successional chronosequence are controlled by predictable demographic parameters. Activity patterns and energetics of smallmouth bass Micropterus dolomieu and largemouth bass M.
Philipp, and Patrick J. Male smallmouth bass and largemouth bass provide care for their offspring from fertilization until the offspring become capable of avoiding predators and the brood disperses.
Parental care varies with the stage of offspring development egg, egg-sac fry, swim-up fry, free-swimming fry , reflecting tradeoffs between current and future reproduction. Tests of this theory have been restricted to daytime activity and have relied primarily on quantifying how fish respond to artificial predator models. We used locomotory activity transmitters to monitor round-the-clock parental activity of male smallmouth bass and largemouth bass, coupled with direct observational data collected while snorkeling, to document parental activity over the different phases of offspring development.
In general, fish were equally active during both day and night, with stage-specific patterns evident for both periods. Consistent with theory, parental male bass of both species exhibited a peak in burst swimming indicative of chasing nest predators early in the nesting period. Smallmouth bass activity indices indicative of overall swimming and energy expenditure followed a similar pattern.
However, largemouth bass showed no decline in overall activity in later nesting stages, although bursting activity indicative of defensive behavior decreased. Activity rates of nesting males of both species were approximately twice that of non-nesting conspecifics. When these activity parameters were incorporated into an energetics model, nesting fish had increased respiration rates, yielding different model outputs.
Our study suggests that locomotory activity transmitters and other physiological telemetry devices that provide both behavioural and energetic information enhance the study of parental care activity in centrarchid fish, and may be equally useful in a variety of other taxa. The increasing use of fossil fuel, as well as the change in land use due to human practices results in a massive release of greenhouse gases to the atmosphere.
By altering the radiative balanace, this change in atmospheric composition, is predicted to yield temperature increases of 2 to 3 o C and modifications of global rain patterns by the year This study explores consequences of the climatic and atmospheric changes on the distribution of vascular plant species in the state of Illinois. If the geographical location of vascular plant species depends on climatic factors, then global change should lead, via migrantions, to alterations of the present plant species distribution.
We used recent Illinois meteorological records and regional climatic predictions for the year to create databases regrouping 25 indicators of the present and future climatic conditions, for each of the Illinois counties.
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Furthermore, C 3 species show a greater advantage over C 4 in the southern counties, which could lead to a change in distribution of C 4 populations between northern and southern counties. Further research is being conducted to model the rate and spatial pattern of possible migrations of surrogate plant species. Utilization of palms by squirrel monkeys Saimiri sciureus in Eastern Amazonia, Brazil. Reliance on key food resources, such as specific fruits, can structure the ranging patterns, habitat use and social dynamics of primates.
Arborescent palms often are an important feature of Amazonian sites, where they may represent the second or third most important tree family. Palms function as a significant food source to a variety of birds and mammals and are important resources for primate communities, particularly during periods of food scarcity.
Because palm leaves provide habitats for several arthropods and small vertebrates, they can function as important foraging substrates for primates as well. Here I present initial observations on patterns of habitat and resource utilization of squirrel monkeys Saimiri sciureus in eastern Amazonia, and focus on the exploitation of palms by these primates.
The site consists of several privately owned ranches which include a ha area of primary forest and adjacent secondary forests, pastures and inundated forest for a total area of approximately ha. Data on activity budgets, habitat use and feeding behavior were collected on free-ranging troops of squirrel monkeys, using focal animal sampling and group scan sampling.
Although these fruit occur in dense, monopolizable clusters, levels of intragroup competition were low. The potential importance of A. Future studies will examine the role of seasonality and changing food availability on the utilization of palm fruit by squirrel monkeys. Illinois riparian forests are a threatened and ecologically important westward extension of the North American temperate deciduous forest. Riparian forests provide streamside buffers protecting watershed quality, corridors of wildlife habitat, and a historic and potential migratory pathway for plant species following climate change.
The woody vegetation of a portion of the streamside forest in the University of Illinois Robert Allerton Park, Piatt County, Illinois is examined using elevation in relation to the Sangamon River as an independent variable delineating forest communities. Condition: New. Language: English. Brand new Book. Seller Inventory AAV More information about this seller Contact this seller.
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