Observations on the Endemic Pygmy Three
... described as a species in 2001 [1]. Bradypus pygmaeus is morphologically distinct from Bradypus variegatus, most obviously in their reduced body size, although genetic differentiation has not been shown [2]. Bradypus pygmaeus are found only on the 4.3 km2 island of Isla Escudo de Veraguas ( = Isla E ...
... described as a species in 2001 [1]. Bradypus pygmaeus is morphologically distinct from Bradypus variegatus, most obviously in their reduced body size, although genetic differentiation has not been shown [2]. Bradypus pygmaeus are found only on the 4.3 km2 island of Isla Escudo de Veraguas ( = Isla E ...
Connections between species diversity and genetic diversity
... models of coexistence are often applied to understanding community dynamics at a single locality, and may or may not help explain why one place has more diversity than another. In the context of this review, the only mechanisms of coexistence that need be considered are those in which the strength o ...
... models of coexistence are often applied to understanding community dynamics at a single locality, and may or may not help explain why one place has more diversity than another. In the context of this review, the only mechanisms of coexistence that need be considered are those in which the strength o ...
in northwestern Madagascar
... Endemism: With the exception of Eulemur fulvus and E. mongoz which also occur on the Comores (but were almost certainly introduced there by man), 100% of the lemurs are endemic to Madagascar. Species radiation: More than 70 extant species, which represent more than 15% of the living primates, have b ...
... Endemism: With the exception of Eulemur fulvus and E. mongoz which also occur on the Comores (but were almost certainly introduced there by man), 100% of the lemurs are endemic to Madagascar. Species radiation: More than 70 extant species, which represent more than 15% of the living primates, have b ...
Indo-Pacific lionfish are larger and more abundant on invaded reefs
... introduced ranges are rarer, but those we have found show a similar pattern (e.g. Indian mongoose: Simberloff et al. 2000; coypu: Guichón et al. 2003). There are several non-mutually exclusive explanations. Lack of exploitation or low predation mortality in the introduced range could favour the evo ...
... introduced ranges are rarer, but those we have found show a similar pattern (e.g. Indian mongoose: Simberloff et al. 2000; coypu: Guichón et al. 2003). There are several non-mutually exclusive explanations. Lack of exploitation or low predation mortality in the introduced range could favour the evo ...
SNH Commissioned Report 524
... between the reintroduced species and landowners and managers. A need for this research arose from discussions at the Scottish National Species Reintroduction Forum which highlighted the need to provide more clarity on the issue, based on the European experience. ‘Reintroduction’ has been defined by ...
... between the reintroduced species and landowners and managers. A need for this research arose from discussions at the Scottish National Species Reintroduction Forum which highlighted the need to provide more clarity on the issue, based on the European experience. ‘Reintroduction’ has been defined by ...
Similar biotic factors affect early establishment and abundance of an
... nutrient availability relieve exotic species from competitive effects imposed by native species (Davis et al. 2000). Negative effects of resource additions might arise when native species positively respond to increases in a given resource, reducing the availability of other resources (e.g., light, ...
... nutrient availability relieve exotic species from competitive effects imposed by native species (Davis et al. 2000). Negative effects of resource additions might arise when native species positively respond to increases in a given resource, reducing the availability of other resources (e.g., light, ...
white rock wind farm pty limited
... The proposed powerline has been planned and routed in the most environmentally sensitive manner possible to minimising impacts on the most vegetated areas of vegetation communities and fauna habitat values of the study area. It is concluded that the proposed installation of the 132kV powerline, ease ...
... The proposed powerline has been planned and routed in the most environmentally sensitive manner possible to minimising impacts on the most vegetated areas of vegetation communities and fauna habitat values of the study area. It is concluded that the proposed installation of the 132kV powerline, ease ...
Similar biotic factors affect early establishment and abundance of an
... nutrient availability relieve exotic species from competitive effects imposed by native species (Davis et al. 2000). Negative effects of resource additions might arise when native species positively respond to increases in a given resource, reducing the availability of other resources (e.g., light, ...
... nutrient availability relieve exotic species from competitive effects imposed by native species (Davis et al. 2000). Negative effects of resource additions might arise when native species positively respond to increases in a given resource, reducing the availability of other resources (e.g., light, ...
Flammulated Owl (Otus flammeolus)
... Circumstantial evidence suggests that they are preyed upon by larger species such as Barred Owls, and are also killed occasionally by squirrels during competition for nest sites. Population sizes and trends Population sizes are difficult to estimate, but the world population is thought to be about 4 ...
... Circumstantial evidence suggests that they are preyed upon by larger species such as Barred Owls, and are also killed occasionally by squirrels during competition for nest sites. Population sizes and trends Population sizes are difficult to estimate, but the world population is thought to be about 4 ...
Full text in pdf format
... and 5 were distributed north and south of the park boundary (Table 1). The sites within the park had varying degrees of anthropogenic influence, ranging from ponds adjacent to Highway 101 and the Redwood National Park Visitors’ Center to 3 sites that cannot be reached with a vehicle. The sites outsi ...
... and 5 were distributed north and south of the park boundary (Table 1). The sites within the park had varying degrees of anthropogenic influence, ranging from ponds adjacent to Highway 101 and the Redwood National Park Visitors’ Center to 3 sites that cannot be reached with a vehicle. The sites outsi ...
40 Anniversary Conference Gesellschaft für Ökologie
... In this year we will celebrate the 40 anniversary of the GfÖ. As I have mentioned before, we actually celebrate the birth of a great idea, since the inscription of our society into the forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more ...
... In this year we will celebrate the 40 anniversary of the GfÖ. As I have mentioned before, we actually celebrate the birth of a great idea, since the inscription of our society into the forms of the district court took place a little bit later. However, I consider the birth of an idea to be much more ...
Importance of the Allee effect for reintroductions1
... In many species, individuals benefit from the presence of conspecifics. The level at which intraspecific competition exceeds the benefits of conspecific presence varies much between species. There is a growing realization that this level can be relatively high in many species. In fact, in some cases ...
... In many species, individuals benefit from the presence of conspecifics. The level at which intraspecific competition exceeds the benefits of conspecific presence varies much between species. There is a growing realization that this level can be relatively high in many species. In fact, in some cases ...
Surveys of Species at Risk and their Associated Habitats in the
... where amphibians prefer to breed. An analysis of reservoir levels would help us to assess impacts of water level fluctuations on breeding amphibians, and to enable development of management recommendations related to timing, frequency and duration of inundation of specific elevations. To mitigate th ...
... where amphibians prefer to breed. An analysis of reservoir levels would help us to assess impacts of water level fluctuations on breeding amphibians, and to enable development of management recommendations related to timing, frequency and duration of inundation of specific elevations. To mitigate th ...
Partitioning the effects of eco-evolutionary feedbacks on
... rates, ranging from slower than to commensurate to ecological rates (Darimont et al. 2009; terHorst 2010; DeLong et al. 2016; Hendry 2016), and this affects the impact of feedbacks (Becks et al. 2010; Turcotte et al. 2011; Reznick 2013). Theoretical work to mechanistically understand how eco-evoluti ...
... rates, ranging from slower than to commensurate to ecological rates (Darimont et al. 2009; terHorst 2010; DeLong et al. 2016; Hendry 2016), and this affects the impact of feedbacks (Becks et al. 2010; Turcotte et al. 2011; Reznick 2013). Theoretical work to mechanistically understand how eco-evoluti ...
Banded Killifish (Fundulus diaphanus)
... substrate. This type of habitat is abundant throughout most watersheds in Newfoundland but the species is only found in a few of these watersheds. In addition, in watersheds where Banded Killifish occur and where there are many lakes with appropriate habitat areas, Fundulus diaphanus is often found ...
... substrate. This type of habitat is abundant throughout most watersheds in Newfoundland but the species is only found in a few of these watersheds. In addition, in watersheds where Banded Killifish occur and where there are many lakes with appropriate habitat areas, Fundulus diaphanus is often found ...
Variation in marine benthic community composition allows discrimination of multiple stressors
... 1974). Chemical analyses of sediments and toxicity bioassays are used to help explain the results of the community surveys, although cause and effect relationships between contamination and community response are usually based on correlative and non-mechanistic evidence (Schmitt & Osenberg 1996). Mo ...
... 1974). Chemical analyses of sediments and toxicity bioassays are used to help explain the results of the community surveys, although cause and effect relationships between contamination and community response are usually based on correlative and non-mechanistic evidence (Schmitt & Osenberg 1996). Mo ...
Intra- and interspecific competition among helminth parasites
... in ways that are likely to increase their predation by birds (Lefebvre and Poulin, unpublished data; Hansen and Poulin, 2005). The second species using the amphipod as an intermediate host, Acanthocephalus galaxii, matures in fish. Although no study has tested the ability of this particular species t ...
... in ways that are likely to increase their predation by birds (Lefebvre and Poulin, unpublished data; Hansen and Poulin, 2005). The second species using the amphipod as an intermediate host, Acanthocephalus galaxii, matures in fish. Although no study has tested the ability of this particular species t ...
Fibre wall and lumen fractions drive wood density
... 2002; Muller-Landau 2004). Despite this broad climaterelated patterning, wood density also tends to vary quite widely among co-occurring species (Wiemann and Williamson 2002; Muller-Landau 2004). Thus there are many potential functional roles for wood density but also a number of unresolved question ...
... 2002; Muller-Landau 2004). Despite this broad climaterelated patterning, wood density also tends to vary quite widely among co-occurring species (Wiemann and Williamson 2002; Muller-Landau 2004). Thus there are many potential functional roles for wood density but also a number of unresolved question ...
Corridor Length and Patch Colonization by a Butterfly, Junonia coenia
... that in some cases may better promote dispersal through fragmented landscapes (Date et al. 1991; Webb & Thomas 1994; Schultz 1998). Stepping stones may be particularly effective if animals (1) can detect a stepping stone from a source patch; (2) are not restricted or directed by habitat boundaries; ...
... that in some cases may better promote dispersal through fragmented landscapes (Date et al. 1991; Webb & Thomas 1994; Schultz 1998). Stepping stones may be particularly effective if animals (1) can detect a stepping stone from a source patch; (2) are not restricted or directed by habitat boundaries; ...
Rotifers: Exquisite Metazoans1 - Integrative and Comparative Biology
... to better characterize rotifer neurobiology? Aging studies Use of rotifers as models for aging makes sense as they are eutelic, have short lifespans, and are inexpensive to culture under conditions suitable for life history analysis. However, although the earliest aging work dates from the 1880s, th ...
... to better characterize rotifer neurobiology? Aging studies Use of rotifers as models for aging makes sense as they are eutelic, have short lifespans, and are inexpensive to culture under conditions suitable for life history analysis. However, although the earliest aging work dates from the 1880s, th ...
Biology of Mayflies - Ephemeroptera Galactica
... exact numberof instars has only been determined in a few species (24, 44, 57). Manyworkers have therefore distinguished developmental stages on the basis of morphological characters (77). Although these mayencompass several instars, they have proved useful in analyzing complex life cycle patterns (1 ...
... exact numberof instars has only been determined in a few species (24, 44, 57). Manyworkers have therefore distinguished developmental stages on the basis of morphological characters (77). Although these mayencompass several instars, they have proved useful in analyzing complex life cycle patterns (1 ...
Draft ISSAP LtD
... remains relatively little-studied. The combination of remote Arctic and sub-Arctic breeding areas, and offshore marine wintering sites makes observations difficult, and it can only be surveyed satisfactorily by ship or aeroplane. In most Range States, there are relatively few academic or volunteer o ...
... remains relatively little-studied. The combination of remote Arctic and sub-Arctic breeding areas, and offshore marine wintering sites makes observations difficult, and it can only be surveyed satisfactorily by ship or aeroplane. In most Range States, there are relatively few academic or volunteer o ...
A GENERAL HYPOTHESIS OF SPECIES DIVERSITY Many
... fluctuations in the physical and biotic environment. Competition occurs and diversity would be reduced by exclusion at equilibrium, but equilibrium is rarely achieved. 2. In a community of competing species under a specific set of conditions, the different species will have different population grow ...
... fluctuations in the physical and biotic environment. Competition occurs and diversity would be reduced by exclusion at equilibrium, but equilibrium is rarely achieved. 2. In a community of competing species under a specific set of conditions, the different species will have different population grow ...
30 years of the endangered species act
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
By Krystle White A Thesis
... Grassland songbird populations in North America are declining rapidly. The descending population trends have paralleled the loss of grassland habitat, which is in part due to habitat degradation from altered ecological processes such as fire suppression. On the remaining tracts of native grassland, ...
... Grassland songbird populations in North America are declining rapidly. The descending population trends have paralleled the loss of grassland habitat, which is in part due to habitat degradation from altered ecological processes such as fire suppression. On the remaining tracts of native grassland, ...