Chapter 5
... Core Case Study: Endangered Southern Sea Otter (2) • 1938-2008: increase from 50 to ~2760 • 1977: declared an endangered species • Why should we care? 1. Cute and cuddly – tourists love them 2. Ethics – it’s wrong to hunt a species to extinction 3. Keystone species – eat other species that would de ...
... Core Case Study: Endangered Southern Sea Otter (2) • 1938-2008: increase from 50 to ~2760 • 1977: declared an endangered species • Why should we care? 1. Cute and cuddly – tourists love them 2. Ethics – it’s wrong to hunt a species to extinction 3. Keystone species – eat other species that would de ...
Mimicry - eweb.furman.edu
... Crypsis: - crypsis is the ability of an organism to avoid observation or detection by other organisms. It may be either a predation strategy or an antipredator adaptation, and methods include camouflage, nocturnality, subterranean lifestyle, transparency,[2] and mimicry (Wikipedia). ...
... Crypsis: - crypsis is the ability of an organism to avoid observation or detection by other organisms. It may be either a predation strategy or an antipredator adaptation, and methods include camouflage, nocturnality, subterranean lifestyle, transparency,[2] and mimicry (Wikipedia). ...
Summary - Yellowstone to Yukon Conservation Initiative
... occupancy and connectivity among species, with significant changes apparent among scenarios. Absolute reductions in regional landscape effectiveness among species range from 7% to 47% at present to a projected loss of between 11% and 55% in 25 years. Within the local assessment area, the reduction i ...
... occupancy and connectivity among species, with significant changes apparent among scenarios. Absolute reductions in regional landscape effectiveness among species range from 7% to 47% at present to a projected loss of between 11% and 55% in 25 years. Within the local assessment area, the reduction i ...
Why Marine Islands Are Farther Apart in the Tropics.
... Lonsdale and Levinton 1985)—this phenomenon should also affect dispersal. In general, planktotrophic larvae tend to be smaller, to have longer durations in the plankton, and to be more common in warmer tropical waters than nonfeeding larvae (Thorson 1950; Strathmann 1985; Pearse et al. 1991; O’Conno ...
... Lonsdale and Levinton 1985)—this phenomenon should also affect dispersal. In general, planktotrophic larvae tend to be smaller, to have longer durations in the plankton, and to be more common in warmer tropical waters than nonfeeding larvae (Thorson 1950; Strathmann 1985; Pearse et al. 1991; O’Conno ...
A survey of seed and seedling characters in 1744 Australian
... information was incorporated into analyses using a technique known as phylogenetic regression (Grafen, 1989, 1992; described below) in order to identify common correlated character shifts within evolutionary lineages. Cross-species and phylogenetic analyses address different questions and should be ...
... information was incorporated into analyses using a technique known as phylogenetic regression (Grafen, 1989, 1992; described below) in order to identify common correlated character shifts within evolutionary lineages. Cross-species and phylogenetic analyses address different questions and should be ...
Incorporating positive interactions in aquatic restoration and
... Positive interactions act within and among populations and species and across a wide range of scales (Table 1), but may not be useful in all restoration and conservation efforts. We have developed guidelines for where and when management could benefit from incorporation of these different types of p ...
... Positive interactions act within and among populations and species and across a wide range of scales (Table 1), but may not be useful in all restoration and conservation efforts. We have developed guidelines for where and when management could benefit from incorporation of these different types of p ...
Positive - Bertness Lab
... Positive interactions act within and among populations and species and across a wide range of scales (Table 1), but may not be useful in all restoration and conservation efforts. We have developed guidelines for where and when management could benefit from incorporation of these different types of p ...
... Positive interactions act within and among populations and species and across a wide range of scales (Table 1), but may not be useful in all restoration and conservation efforts. We have developed guidelines for where and when management could benefit from incorporation of these different types of p ...
Disease Spreading on Ecological Multiplex
... or vectors to be transmitted to other destination hosts. Several studies have reported that free-living stages of parasites or ectoparasites may be subject to predation and that predators can feed on parasites together with their infected prey [19]. Predation also represents a key transmission pathw ...
... or vectors to be transmitted to other destination hosts. Several studies have reported that free-living stages of parasites or ectoparasites may be subject to predation and that predators can feed on parasites together with their infected prey [19]. Predation also represents a key transmission pathw ...
Ocular morphology in antarctic notothenioid fishes
... choroid body, and its presence was considered a primitive character state for notothenioids. The choroid body was absent in phyletically derived groups. The choroid body was especially large in Dissostichus mawsoni, the only species with a rod dominated retina. Retinae were 154-279 pm thick with lay ...
... choroid body, and its presence was considered a primitive character state for notothenioids. The choroid body was absent in phyletically derived groups. The choroid body was especially large in Dissostichus mawsoni, the only species with a rod dominated retina. Retinae were 154-279 pm thick with lay ...
Relationship of calling intensity to - Research Online
... Humphries, 1979; Okuno, 1985; Radwan and Schneider, 1988) have most consistently been found to correlate with the number of males calling at a given time and/or the intensity of their calling activity, usually showing a positive relationship. Humidity also often correlates with calling activity (Alm ...
... Humphries, 1979; Okuno, 1985; Radwan and Schneider, 1988) have most consistently been found to correlate with the number of males calling at a given time and/or the intensity of their calling activity, usually showing a positive relationship. Humidity also often correlates with calling activity (Alm ...
Our Biodiverse City - eThekwini Municipality
... need to recognise that our activities are destroying valuable ecosystems and threatening the continued existence of thousands of species. Many of us do not understand that it is these very species and ecosystems, the biodiversity of our planet, which supports life on earth by providing critical good ...
... need to recognise that our activities are destroying valuable ecosystems and threatening the continued existence of thousands of species. Many of us do not understand that it is these very species and ecosystems, the biodiversity of our planet, which supports life on earth by providing critical good ...
Consistency of species ranking based on functional leaf traits
... 1999. Harvests were conducted between 19 May and 3 June in 1998 (‘May 98’ hereafter), and between 11 May and 17 June in 1999 (‘May 99’ hereafter). Spatio-temporal variation In Camp Redon and Les Agros, we selected species previously found in Cazarils in May 1998 (Table 2): there were 28 species in C ...
... 1999. Harvests were conducted between 19 May and 3 June in 1998 (‘May 98’ hereafter), and between 11 May and 17 June in 1999 (‘May 99’ hereafter). Spatio-temporal variation In Camp Redon and Les Agros, we selected species previously found in Cazarils in May 1998 (Table 2): there were 28 species in C ...
Darkling Beetles (Coleoptera: Tenebrionidae) of Canadian Grasslands
... Saskatchewan, and Manitoba (see highlighted areas in Fig. 1 in Shorthouse and Larson 2010). Tenebrionidae specimens in all major insect collections in western Canada were examined by the authors in preparation for an upcoming taxonomic treatment of the fauna for Canada and Alaska. For each native sp ...
... Saskatchewan, and Manitoba (see highlighted areas in Fig. 1 in Shorthouse and Larson 2010). Tenebrionidae specimens in all major insect collections in western Canada were examined by the authors in preparation for an upcoming taxonomic treatment of the fauna for Canada and Alaska. For each native sp ...
An anatomy of interactions among species in a seasonal world
... (i.e. species 1 biomass plotted against species 2 biomass) graphically and numerically, we found that each of the four interaction types showed characteristic patterns (‘‘fingerprints’’) in phase space. All the four interaction types could be distinguished, even though their time trajectories were s ...
... (i.e. species 1 biomass plotted against species 2 biomass) graphically and numerically, we found that each of the four interaction types showed characteristic patterns (‘‘fingerprints’’) in phase space. All the four interaction types could be distinguished, even though their time trajectories were s ...
smooth cordgrass Spartina alterniflora Loisel.
... cordgrass can decrease water flow and cause flooding at the mouths of rivers. The establishment of Spartina species in mudflats will favor invertebrate species associated with salt marshes over those associated with unvegetated mudflats (Jacono 1998, Daehler 2000, WAPMS 2004). Biology and Invasive P ...
... cordgrass can decrease water flow and cause flooding at the mouths of rivers. The establishment of Spartina species in mudflats will favor invertebrate species associated with salt marshes over those associated with unvegetated mudflats (Jacono 1998, Daehler 2000, WAPMS 2004). Biology and Invasive P ...
vascular flora of drainage ditches in forest areas of the polesie
... This paper presents the results of floristic studies conducted in the years 2003 – 2005 within the area of the Polesie National Park. The aim of the research was to compare the flora of initial succession stages in drainage ditches with the flora of neighbouring forest areas undergoing transformatio ...
... This paper presents the results of floristic studies conducted in the years 2003 – 2005 within the area of the Polesie National Park. The aim of the research was to compare the flora of initial succession stages in drainage ditches with the flora of neighbouring forest areas undergoing transformatio ...
Chapter 20
... an ecosystem, much of it is lost at each link in the food chain. • Consider the example of a caterpillar. ...
... an ecosystem, much of it is lost at each link in the food chain. • Consider the example of a caterpillar. ...
Namadgi National Park, ACT Kosciuszko National Park, NSW
... areas had been surveyed previously, the remoteness and roughness of the terrain meant that many of the collections were restricted to the more accessible sites. In addition, the parks had not been surveyed for some taxa, for example Namadgi had never been surveyed for spiders. This survey gave resea ...
... areas had been surveyed previously, the remoteness and roughness of the terrain meant that many of the collections were restricted to the more accessible sites. In addition, the parks had not been surveyed for some taxa, for example Namadgi had never been surveyed for spiders. This survey gave resea ...
Resource-driven terrestrial interaction webs
... mesic woodland. In the northeast, three host insects are available which feed on 21 plant species in 12 families, again all in mesic woodland. In the southwest, three host herbivore species are also available but are spread over 44 plant species in 17 families and in three habitats: chaparral, mesic ...
... mesic woodland. In the northeast, three host insects are available which feed on 21 plant species in 12 families, again all in mesic woodland. In the southwest, three host herbivore species are also available but are spread over 44 plant species in 17 families and in three habitats: chaparral, mesic ...
Integrating occupancy models and structural equation models to
... acid-washed Nalgene bottles, filtered, frozen, and analyzed for ammonium (NH4+) and total dissolved nitrogen (TDN) concentrations using standard protocols (available online).4 Imagery from Google Earth was used to help determine whether wetlands were permanent, based on consistent presence of water ...
... acid-washed Nalgene bottles, filtered, frozen, and analyzed for ammonium (NH4+) and total dissolved nitrogen (TDN) concentrations using standard protocols (available online).4 Imagery from Google Earth was used to help determine whether wetlands were permanent, based on consistent presence of water ...
What about “Pests”? - Guide to Rural Residential Living
... Procedures document referred to in this Chapter of the Guide before deciding on control techniques. The correct techniques must be used to avoid harm to farm animals and wildlife. ...
... Procedures document referred to in this Chapter of the Guide before deciding on control techniques. The correct techniques must be used to avoid harm to farm animals and wildlife. ...
Effects of species diversity on the primary productivity of ecosystems
... the link between species diversity and primary productivity continues to be a fundamental challenge for ecological research (Loreau et al. 2001, Naeem 2002). Most of our understanding of how species diversity influences productivity has come from experiments performed with assemblages of terrestria ...
... the link between species diversity and primary productivity continues to be a fundamental challenge for ecological research (Loreau et al. 2001, Naeem 2002). Most of our understanding of how species diversity influences productivity has come from experiments performed with assemblages of terrestria ...
Conservation Outside Protected Areas
... threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use land, including 83% of the state of Nevada and large areas of Utah, Wyoming, Oregon, Idaho, and other western states. In the past, these lands were prima ...
... threaten the survival of endangered species. In the United States, the Bureau of Land Management oversees more than 110 million ha of multiple-use land, including 83% of the state of Nevada and large areas of Utah, Wyoming, Oregon, Idaho, and other western states. In the past, these lands were prima ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.