UNIVERSIDAD AUT ´ONOMA DE MADRID FACULTAD DE
... on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, or which it comes into competition. ...
... on insensibly changing physical conditions, but in large part on the presence of other species, on which it depends, or by which it is destroyed, or which it comes into competition. ...
CONSUMPTIVE AND NONCONSUMPTIVE EFFECTS OF PREDATORS ON METACOMMUNITIES OF COMPETING PREY J
... abundance of predators changes much more slowly than the abundance of prey, an assumption frequently made in predator–prey models that focus on prey dynamics (e.g., Holt 1987). This assumption is realistic under several common scenarios, for example, if numerical responses of predators occur slowly ...
... abundance of predators changes much more slowly than the abundance of prey, an assumption frequently made in predator–prey models that focus on prey dynamics (e.g., Holt 1987). This assumption is realistic under several common scenarios, for example, if numerical responses of predators occur slowly ...
DiVerential habitat use and antipredator response of juvenile roach
... 2004; Kim et al. 2009), even though it could be expected that prey rely heavily on olfaction within relatively turbid environments. In the future, eutrophication (Utne-Palm 2002; Engström-Öst and Mattila 2008) and the loss of sediment-stabilizing foundation species such as submerged aquatic vegetati ...
... 2004; Kim et al. 2009), even though it could be expected that prey rely heavily on olfaction within relatively turbid environments. In the future, eutrophication (Utne-Palm 2002; Engström-Öst and Mattila 2008) and the loss of sediment-stabilizing foundation species such as submerged aquatic vegetati ...
Ontogenetic diet shifts in Nassau grouper
... on stomatopods in St. Croix, U.S. Virgin Islands. She found that predation was important in shallow habitats only when barriers to stomatopod migration were present, with predation pressure increasing on deeper reefs (Reaka, 1985). Conversely, Jones et al. (1992) experimentally excluded reef fish pr ...
... on stomatopods in St. Croix, U.S. Virgin Islands. She found that predation was important in shallow habitats only when barriers to stomatopod migration were present, with predation pressure increasing on deeper reefs (Reaka, 1985). Conversely, Jones et al. (1992) experimentally excluded reef fish pr ...
weakly density-dependent mortality and the coexistence of species
... 1967; Bak, 1996; Wilson, 1975)). In this paper, we argue that weakly densitydependent mortality, characterized by fractional exponents slightly greater than one, could potentially have a strong qualitative impact on ecological dynamics; their investigation may shed new light on important current que ...
... 1967; Bak, 1996; Wilson, 1975)). In this paper, we argue that weakly densitydependent mortality, characterized by fractional exponents slightly greater than one, could potentially have a strong qualitative impact on ecological dynamics; their investigation may shed new light on important current que ...
Oregon Spotted Frog (Rana pretiosa)
... Loss of one of four populations (Aldergrove) over the past 3-generation period, representing an inferred decline in mature individuals of approximately 25%. Projected or suspected percent reduction or increase in total number of mature individuals over the next 10 years or 3-generation period Observ ...
... Loss of one of four populations (Aldergrove) over the past 3-generation period, representing an inferred decline in mature individuals of approximately 25%. Projected or suspected percent reduction or increase in total number of mature individuals over the next 10 years or 3-generation period Observ ...
Sec_3_Status_of_species_BA - Bay
... differences have been identified between the population spawning in the north Delta and those spawning in the central Delta (Bennett 2005). ...
... differences have been identified between the population spawning in the north Delta and those spawning in the central Delta (Bennett 2005). ...
Thick-billed Grasswren Interim Recovery Plan
... Interim Recovery Plans (IRPs) are developed within the framework laid down in Department of Conservation and Land Management (DCLM) Policy Statements Nos 44 and 50. IRPs outline the recovery actions that are required to urgently address those threatening processes most affecting the ongoing survival ...
... Interim Recovery Plans (IRPs) are developed within the framework laid down in Department of Conservation and Land Management (DCLM) Policy Statements Nos 44 and 50. IRPs outline the recovery actions that are required to urgently address those threatening processes most affecting the ongoing survival ...
Managing Grasslands - New Hampshire Fish and Game Department
... known. Land that was cleared for agriculture was soon abandoned with the opening of the Erie Canal, the California Gold Rush, the Civil War, and the rise of industrial cities. Such clearing put a cultural premium on forests; they were rare compared to the open countryside, even though it was already ...
... known. Land that was cleared for agriculture was soon abandoned with the opening of the Erie Canal, the California Gold Rush, the Civil War, and the rise of industrial cities. Such clearing put a cultural premium on forests; they were rare compared to the open countryside, even though it was already ...
Aurochs and Bison – natural range and habitat selection, de
... - extinction started in C8th from W, continuing in S and N, reduction in range caused by progress of civilisation, pressure from hunting, running out of space for free living that did not compete with humans - lost from Sweden in C11th, Germany in C14th, Hungary in C16th, Romania, Moldova, E Russia ...
... - extinction started in C8th from W, continuing in S and N, reduction in range caused by progress of civilisation, pressure from hunting, running out of space for free living that did not compete with humans - lost from Sweden in C11th, Germany in C14th, Hungary in C16th, Romania, Moldova, E Russia ...
Managing Grasslands, Shrublands and Young Forests for Wildlife
... known. Land that was cleared for agriculture was soon abandoned with the opening of the Erie Canal, the California Gold Rush, the Civil War, and the rise of industrial cities. Such clearing put a cultural premium on forests; they were rare compared to the open countryside, even though it was already ...
... known. Land that was cleared for agriculture was soon abandoned with the opening of the Erie Canal, the California Gold Rush, the Civil War, and the rise of industrial cities. Such clearing put a cultural premium on forests; they were rare compared to the open countryside, even though it was already ...
SOUTHERN BROWN BANDICOOT – ISOODON OBESULUS
... identification, habitat requirements and threats. Distribute SBB Fact Sheets and revegetation information. 4. Ensure the Northern Grampians Shire and Ararat Rural City Council Planning Scheme protects areas with SBB habitat and lists them in an Environmental Significance Overlay (ESO). 5. Identify a ...
... identification, habitat requirements and threats. Distribute SBB Fact Sheets and revegetation information. 4. Ensure the Northern Grampians Shire and Ararat Rural City Council Planning Scheme protects areas with SBB habitat and lists them in an Environmental Significance Overlay (ESO). 5. Identify a ...
COSEWIC Assessment and Status Report on the Monarch Danaus
... Mexican and Californian overwintering individuals are not genetically distinct. Population sizes and trends Eastern and Western populations fluctuate frequently, sometimes dramatically, as a result of overwintering mortality, poor breeding conditions, mortality due to pesticides and herbicides, and ...
... Mexican and Californian overwintering individuals are not genetically distinct. Population sizes and trends Eastern and Western populations fluctuate frequently, sometimes dramatically, as a result of overwintering mortality, poor breeding conditions, mortality due to pesticides and herbicides, and ...
Western Ringtail Possum (Pseudocheirus occidentalis)
... shelter from predators. However, this occupied habitat coincides with an area of rapid urban development that results in many land-use conflicts and costly environmental impact assessments. This report assesses the habitat for WRP in the southern Swan Coastal Plain between Binningup and Dunsborough ...
... shelter from predators. However, this occupied habitat coincides with an area of rapid urban development that results in many land-use conflicts and costly environmental impact assessments. This report assesses the habitat for WRP in the southern Swan Coastal Plain between Binningup and Dunsborough ...
Pages 16-144 - South Atlantic Fishery Management Council
... less than 0.5 ppt at the upper reaches of the estuaries under the influence of freshwater outflow from coastal plain streams and rivers (Odum et al. 1984). The tolerance of salinity in the water column and in the soils that serve as substrate directly influence the composition of the plant community ...
... less than 0.5 ppt at the upper reaches of the estuaries under the influence of freshwater outflow from coastal plain streams and rivers (Odum et al. 1984). The tolerance of salinity in the water column and in the soils that serve as substrate directly influence the composition of the plant community ...
1 Vole population dynamics: factors affecting amplitudes of
... is not off-set by mortality, the higher the peak densities and amplitudes of fluctuation. Exceptionally favorable habitat conditions during the increase phase of a cycle may also influence peak densities and amplitudes of fluctuation. ...
... is not off-set by mortality, the higher the peak densities and amplitudes of fluctuation. Exceptionally favorable habitat conditions during the increase phase of a cycle may also influence peak densities and amplitudes of fluctuation. ...
Bottomless lift net for quantitatively sampling nekton on intertidal
... with any microhabitat in between. Because samples are integrated over time, neither microhabitat-species associations nor precise densities can be determined (Kneib 1991). Kneib (1991) recently developed the flume weir to overcome these shortcomings. Its use is not limited to sites near open water. ...
... with any microhabitat in between. Because samples are integrated over time, neither microhabitat-species associations nor precise densities can be determined (Kneib 1991). Kneib (1991) recently developed the flume weir to overcome these shortcomings. Its use is not limited to sites near open water. ...
When natural habitat fails to enhance biological pest control
... Therefore, combining agricultural land use with natural habitat fragments in mosaic landscapes can be beneficial for biodiversity conservation, increasing environmental benefits, ecosystem services, and human wellbeing (Perfecto and Vandermeer, 2010; Tscharntke et al., 2012a). However, prioritizing ma ...
... Therefore, combining agricultural land use with natural habitat fragments in mosaic landscapes can be beneficial for biodiversity conservation, increasing environmental benefits, ecosystem services, and human wellbeing (Perfecto and Vandermeer, 2010; Tscharntke et al., 2012a). However, prioritizing ma ...
aquatic and terrestrial habitat selection by - ETH E
... differential habitat selection is likely evident in all life history stages of amphibians, and most probably facilitates temporal co-existence of species with complex life cycles at local spatial scales. Conservation implications. The present work has implications for the conservation of amphibians ...
... differential habitat selection is likely evident in all life history stages of amphibians, and most probably facilitates temporal co-existence of species with complex life cycles at local spatial scales. Conservation implications. The present work has implications for the conservation of amphibians ...
Long-billed Curlew (Numenius americanus)
... The Long-billed Curlew is an upland shorebird that breeds only in the North American grasslands. It winters in coastal and inland areas of California, Texas, Louisiana and along the Pacific coast of Mexico as far south as El Salvador and Costa Rica. Approximately 16% of the Long-billed Curlew’s glob ...
... The Long-billed Curlew is an upland shorebird that breeds only in the North American grasslands. It winters in coastal and inland areas of California, Texas, Louisiana and along the Pacific coast of Mexico as far south as El Salvador and Costa Rica. Approximately 16% of the Long-billed Curlew’s glob ...
8th International Dormouse Conference
... in Japan, Belgium and other European countries have raised awareness of conservation issues and gained public support for valuable environmental improvements that might not otherwise have happened. Although these activities appear to focus on dormice, what is good for them also benefits many other s ...
... in Japan, Belgium and other European countries have raised awareness of conservation issues and gained public support for valuable environmental improvements that might not otherwise have happened. Although these activities appear to focus on dormice, what is good for them also benefits many other s ...
Coexistence of two stage-structured intraguild predators
... larger body size. Because species with a similar size-range will have similar diets and hence strong niche overlap, all but one of these species will generally be outcompeted in resulting food webs. According to size spectrum models, coexistence of multiple omnivores is therefore only possible betwe ...
... larger body size. Because species with a similar size-range will have similar diets and hence strong niche overlap, all but one of these species will generally be outcompeted in resulting food webs. According to size spectrum models, coexistence of multiple omnivores is therefore only possible betwe ...
spatial variation in molluscan assemblages from coralline turfs of
... (Hoffman, Nunez & Piccolo, 1997), and there is a large tidal range (between 4 and 9 m). Wave exposure of these shores varied from sheltered (Piedras Coloradas, Punta Mejillón and Punta Ameghino), medium exposure (Puerto Lobos and Bahı́a Camarones) to relatively exposed (Punta Ninfas, Comodoro Rivad ...
... (Hoffman, Nunez & Piccolo, 1997), and there is a large tidal range (between 4 and 9 m). Wave exposure of these shores varied from sheltered (Piedras Coloradas, Punta Mejillón and Punta Ameghino), medium exposure (Puerto Lobos and Bahı́a Camarones) to relatively exposed (Punta Ninfas, Comodoro Rivad ...
stc5_12_ssap_btg_0
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
... The Black-tailed Godwit has a widespread but disjunct distribution in the Western Palearctic. Two subspecies occur in this area; islandica which breeds mainly in Iceland and limosa with a main breeding range from The Netherlands to Russia. The populations of both subspecies are migratory and have se ...
Puerto Rican Crested Toad - Conservation Breeding Specialist Group
... On behalf of the Fish and Wildlife Service (FWS) and the American Zoo and Aquarium Association’s (AZA) Puerto Rican Crested Toad Species Survival Plan (SSP) program, we invite you and/or members of your staff to participate in an IUCN Conservation Breeding Specialist Group (CBSG) Puerto Rican Creste ...
... On behalf of the Fish and Wildlife Service (FWS) and the American Zoo and Aquarium Association’s (AZA) Puerto Rican Crested Toad Species Survival Plan (SSP) program, we invite you and/or members of your staff to participate in an IUCN Conservation Breeding Specialist Group (CBSG) Puerto Rican Creste ...