RRA proof-1
... coho access to habitat which had been inaccessible for over 100 years. We found that density (g ...
... coho access to habitat which had been inaccessible for over 100 years. We found that density (g ...
Draft National Wildlife Corridors Plan March 2012
... agriculture and urban environments. This will affect the wellbeing of Australia’s unique native species, ecosystems and human population. Fragmentation of our landscapes reduces species’ and ecosystems’ capacity to adapt to altered climatic conditions. If we are to halt the trend of biodiversity dec ...
... agriculture and urban environments. This will affect the wellbeing of Australia’s unique native species, ecosystems and human population. Fragmentation of our landscapes reduces species’ and ecosystems’ capacity to adapt to altered climatic conditions. If we are to halt the trend of biodiversity dec ...
Conservation of kaka in New Zealand
... 5.2 How do the kaka's diets vary seasonally and what are the phenology patterns of kaka's principal food species? 5.3 What is the natural periodicity of breeding? It appears that kaka breeding is linked to the occurrence of high quality foods available only periodically. Thus kaka may not breed ever ...
... 5.2 How do the kaka's diets vary seasonally and what are the phenology patterns of kaka's principal food species? 5.3 What is the natural periodicity of breeding? It appears that kaka breeding is linked to the occurrence of high quality foods available only periodically. Thus kaka may not breed ever ...
Pests controlling pests: does predator control lead to greater
... factors leading to mortality, such as disease, flooding of burrows and burrow collapse. Similarly, in Australia, rabbit numbers are driven primarily by climate and its effects on food abundance and quality, and by disease. However, where rabbit numbers are low following drought or major epizootics, ...
... factors leading to mortality, such as disease, flooding of burrows and burrow collapse. Similarly, in Australia, rabbit numbers are driven primarily by climate and its effects on food abundance and quality, and by disease. However, where rabbit numbers are low following drought or major epizootics, ...
Changing Seascapes, Stochastic Connectivity, and Marine
... 2009). Concurrently, these features can also disconnect sites, leading to negative covariances between connections. Equations (5)–(8) are well understood for stage-structured populations (Tuljapurkar and Orzack 1980; Caswell 2001). However, in the metapopulation setting, the Tuljapurkar approximatio ...
... 2009). Concurrently, these features can also disconnect sites, leading to negative covariances between connections. Equations (5)–(8) are well understood for stage-structured populations (Tuljapurkar and Orzack 1980; Caswell 2001). However, in the metapopulation setting, the Tuljapurkar approximatio ...
Parasites, density, and disturbance: Factors influencing coexistence
... now occur in Bolinas Lagoon, California. Direct comparisons of these two snail species include an analysis of the feeding structure morphology (Driscoll 1972) and one field study evaluating the effects of interspecific interaction (Whitlatch and Obrebski 1980). Independent assessment of life history ...
... now occur in Bolinas Lagoon, California. Direct comparisons of these two snail species include an analysis of the feeding structure morphology (Driscoll 1972) and one field study evaluating the effects of interspecific interaction (Whitlatch and Obrebski 1980). Independent assessment of life history ...
Mammals of the Mixedwood Plains Ecozone
... known from this area became extinct during this period of change. These included giant beavers, woolly mammoths, mastodons and species of deer and bison (Harington, 1989). Throughout this period there have been steady, gradual changes in the biodiversity of the Mixedwood Plains Ecozone, but the most ...
... known from this area became extinct during this period of change. These included giant beavers, woolly mammoths, mastodons and species of deer and bison (Harington, 1989). Throughout this period there have been steady, gradual changes in the biodiversity of the Mixedwood Plains Ecozone, but the most ...
Recovery Strategy for Morrison Creek Lamprey (Lampetra
... be developed within one to two years after the species is added to the List of Wildlife Species at Risk. Three to four years is allowed for those species that were automatically listed when SARA came into force. What’s next? In most cases, one or more action plans will be developed to define and gui ...
... be developed within one to two years after the species is added to the List of Wildlife Species at Risk. Three to four years is allowed for those species that were automatically listed when SARA came into force. What’s next? In most cases, one or more action plans will be developed to define and gui ...
ecology of insect communities in nontidal wetlands
... gradually rise above the water table (181), and thus many of the insects found in these habitats are of terrestrial origin. Aquatic species can occur in the water around peatland vegetation itself (e.g. I S ) , although most of the research addressing the aquatic fauna has been conducted in peatland ...
... gradually rise above the water table (181), and thus many of the insects found in these habitats are of terrestrial origin. Aquatic species can occur in the water around peatland vegetation itself (e.g. I S ) , although most of the research addressing the aquatic fauna has been conducted in peatland ...
Factors affecting carcass use by a guild of scavengers in European
... are likely a hierarchical process (Kaspari and Joern 1993). First, not all carcasses may be available to a given scavenger; then, the available carcasses may be subject to scavenger choice. According to optimal foraging theory, the choice may be related to energy maximization, especially in the high ...
... are likely a hierarchical process (Kaspari and Joern 1993). First, not all carcasses may be available to a given scavenger; then, the available carcasses may be subject to scavenger choice. According to optimal foraging theory, the choice may be related to energy maximization, especially in the high ...
Key - Scioly.org
... may also use the rule of 30. 70/15.2 = 4.6 semesters = 18.4 months 4. cultural carrying capacity (1pt) Example (1pt): deer hunting , exterminating coachroaches, etc. any scenario in which humans reduce the numbers of a species population because they disturb the human population, even if there are t ...
... may also use the rule of 30. 70/15.2 = 4.6 semesters = 18.4 months 4. cultural carrying capacity (1pt) Example (1pt): deer hunting , exterminating coachroaches, etc. any scenario in which humans reduce the numbers of a species population because they disturb the human population, even if there are t ...
Buloke - Wimmera Catchment Management Authority
... like to thank Fabian Douglas, Clive Crouch, Chris Grant, Terry Reardon, Neil Marriott, Lindy Lumsden, Dale Tonkinson, Dan Harley, Sue Hadden and Richard Hill for their contributions to the description of species. Thanks also to the photographers and illustrators for their contributions; to Phil Inga ...
... like to thank Fabian Douglas, Clive Crouch, Chris Grant, Terry Reardon, Neil Marriott, Lindy Lumsden, Dale Tonkinson, Dan Harley, Sue Hadden and Richard Hill for their contributions to the description of species. Thanks also to the photographers and illustrators for their contributions; to Phil Inga ...
The functional response in three species of herbivorous Anatidae
... instantaneous intake rates on eight grass heights from 1 cm to 12 cm, as well as pecking rates and peck sizes, and used the Spalinger–Hobbs model developed for mammalian herbivores to explore the mechanisms limiting intake in these three species. 3. Greylag geese increased their intake rate with inc ...
... instantaneous intake rates on eight grass heights from 1 cm to 12 cm, as well as pecking rates and peck sizes, and used the Spalinger–Hobbs model developed for mammalian herbivores to explore the mechanisms limiting intake in these three species. 3. Greylag geese increased their intake rate with inc ...
Scale-dependent interactions and community
... Recent theory suggests that scale-dependent interaction between facilitation and competition can generate spatial structure in ecological communities. The application of this hypothesis, however, has been limited to systems with little underlying heterogeneity. We evaluated this prediction in a plan ...
... Recent theory suggests that scale-dependent interaction between facilitation and competition can generate spatial structure in ecological communities. The application of this hypothesis, however, has been limited to systems with little underlying heterogeneity. We evaluated this prediction in a plan ...
Using stable isotopes of nitrogen and carbon to study - ICM-CSIC
... the Argentinean Patagonia, showed a hihg degree of overlap in trophic level (δ15N) and δ13C values (Forero et al., submit.). Authors concluded that coexistence of species in the community could be interpreted as a consequence of superabundance of food or species diversification in morphology and fo ...
... the Argentinean Patagonia, showed a hihg degree of overlap in trophic level (δ15N) and δ13C values (Forero et al., submit.). Authors concluded that coexistence of species in the community could be interpreted as a consequence of superabundance of food or species diversification in morphology and fo ...
The impact of herbicides on weed abundance and biodiversity PN0940
... that are typically controlled irrespective of density. In contrast, rare arable weeds may require specific conservation protection; these species may be non-targets under almost all conditions. The majority of species usually present can be both targets and non-targets and are most likely to be of g ...
... that are typically controlled irrespective of density. In contrast, rare arable weeds may require specific conservation protection; these species may be non-targets under almost all conditions. The majority of species usually present can be both targets and non-targets and are most likely to be of g ...
Effects of an introduced piscivore on benthic fishes in a coastal river
... 1. We used ®eld surveys to compare the density and mesohabitat-scale distribution of the native coastrange sculpin (Cottus aleuticus) and the prickly sculpin (C. asper) in coastal rivers in north-western California, U.S.A., with and without an introduced piscivorous ®sh, the Sacramento pikeminnow, P ...
... 1. We used ®eld surveys to compare the density and mesohabitat-scale distribution of the native coastrange sculpin (Cottus aleuticus) and the prickly sculpin (C. asper) in coastal rivers in north-western California, U.S.A., with and without an introduced piscivorous ®sh, the Sacramento pikeminnow, P ...
A review of modelling methods of indicators for the identification of
... that can be assessed with reference points operate at a single species level and therefore provide little insight into processes and operations at an ecosystem level (Hall & Mainprize 2004). While there is little consensus on reference points, a range of studies have shown that the direction of tren ...
... that can be assessed with reference points operate at a single species level and therefore provide little insight into processes and operations at an ecosystem level (Hall & Mainprize 2004). While there is little consensus on reference points, a range of studies have shown that the direction of tren ...
SUMMARY
... by vegetation and wind as a dispersal vector, deserve a prominent role in studies on propagule dispersal. The significance of dense vegetation obstructing long distance dispersal (LDD in its definition of this work), mainly in inner mangrove zones, supports our main finding that propagule dispersal ...
... by vegetation and wind as a dispersal vector, deserve a prominent role in studies on propagule dispersal. The significance of dense vegetation obstructing long distance dispersal (LDD in its definition of this work), mainly in inner mangrove zones, supports our main finding that propagule dispersal ...
Download 174. Belfield, T., T. Tunison, J. Chase, and S. McDaniel. 2011. Rare plant stabilization projects at Hawai`i Volcanoes National Park, 1998-2008
... sandwicensis (23%), and Nototrichium sandwicense (24%) was moderately high in one of the two sites. Sixteen rare species were planted in the mid-elevation woodlands, mostly in the context of a project to develop seed orchards to create propagules for further rare plant restoration and rehabilitation ...
... sandwicensis (23%), and Nototrichium sandwicense (24%) was moderately high in one of the two sites. Sixteen rare species were planted in the mid-elevation woodlands, mostly in the context of a project to develop seed orchards to create propagules for further rare plant restoration and rehabilitation ...
Ocelot CH Petition - WildEarth Guardians
... in the U.S. portion of its range, but the Ocelot has not recovered. Indeed, its current population levels are approximately the same in the U.S. as when this animal was listed in 1982: 50 or fewer Ocelots occur in the U.S. Research has shown that critical habitat is effective in promoting recovery o ...
... in the U.S. portion of its range, but the Ocelot has not recovered. Indeed, its current population levels are approximately the same in the U.S. as when this animal was listed in 1982: 50 or fewer Ocelots occur in the U.S. Research has shown that critical habitat is effective in promoting recovery o ...
Caribbean Naturalist - Besøg macroecointern.dk
... ♦ A peer-reviewed and edited interdisciplinary natural history science journal with a regional focus on the Caribbean ( ISSN 2326-7119 [online]). ♦ Featuring research articles, notes, and research summaries on terrestrial, fresh-water, and marine organisms, and their habitats. The journal's versat ...
... ♦ A peer-reviewed and edited interdisciplinary natural history science journal with a regional focus on the Caribbean ( ISSN 2326-7119 [online]). ♦ Featuring research articles, notes, and research summaries on terrestrial, fresh-water, and marine organisms, and their habitats. The journal's versat ...
Units - Georgia FFA
... 1. Describe the role of disease in animal wildlife. Wildlife Management Planning: Objectives: 1. Identify economic land use practices that affect wildlife habitat and determine if those practices have a positive or negative impact on habitat availability. 2. Identify land management practices that s ...
... 1. Describe the role of disease in animal wildlife. Wildlife Management Planning: Objectives: 1. Identify economic land use practices that affect wildlife habitat and determine if those practices have a positive or negative impact on habitat availability. 2. Identify land management practices that s ...
Landscape and smaller-scale effects of lugworm
... the duration of the experiment and three days afterwards (16 d), worm abundances were estimated by enumerating fecal mounds in and immediately adjacent (within 15 cm) to each of the 1 m2 quadrats. d. Effects of tidal immersion Although recolonization during aerial exposure is limited to potential me ...
... the duration of the experiment and three days afterwards (16 d), worm abundances were estimated by enumerating fecal mounds in and immediately adjacent (within 15 cm) to each of the 1 m2 quadrats. d. Effects of tidal immersion Although recolonization during aerial exposure is limited to potential me ...
The road toward sympatric speciation in whitefish.
... predator pike and can now predate on the larger food items found in the littoral zone and a small pelagic morph which avoid predation by staying in the pelagic (Öhlund 2012). This is thought to be a novel mechanism for the initiation of sympatric speciation (Öhlund 2012). The above described selecti ...
... predator pike and can now predate on the larger food items found in the littoral zone and a small pelagic morph which avoid predation by staying in the pelagic (Öhlund 2012). This is thought to be a novel mechanism for the initiation of sympatric speciation (Öhlund 2012). The above described selecti ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.