Yellow Rail (Coturnicops noveboracensis)
... Population sizes and trends Yellow Rails are not well sampled by standardized bird surveys such as the Breeding Bird Survey, Christmas Bird Count, or Marsh Monitoring Program. Currently, only breeding bird atlas programs and surveys specifically targeting the species offer reliable information on oc ...
... Population sizes and trends Yellow Rails are not well sampled by standardized bird surveys such as the Breeding Bird Survey, Christmas Bird Count, or Marsh Monitoring Program. Currently, only breeding bird atlas programs and surveys specifically targeting the species offer reliable information on oc ...
Palm Springs pocket mouse - Center for Biological Diversity
... These imminent projects would destroy thousands of acres of core habitat for the pocket mouse as well as further fragmenting existing habitat. The Palmwood and the College of the Desert projects, in particular, threaten to destroy core Palm Springs Pocket Mouse habitat and corridor in the Big Morong ...
... These imminent projects would destroy thousands of acres of core habitat for the pocket mouse as well as further fragmenting existing habitat. The Palmwood and the College of the Desert projects, in particular, threaten to destroy core Palm Springs Pocket Mouse habitat and corridor in the Big Morong ...
Director Species Listing Section Threatened Species Scientific
... are unable, or reluctant, to cross gaps in vegetation and move within or among fragmented habitats. The requirement to do so with the increasing destruction of their habitat results in increased mortality from vehicle collisions and predation. Consequently, they have experienced population declines ...
... are unable, or reluctant, to cross gaps in vegetation and move within or among fragmented habitats. The requirement to do so with the increasing destruction of their habitat results in increased mortality from vehicle collisions and predation. Consequently, they have experienced population declines ...
pdf em inglês
... Even though the Ribeirão das Lajes reservoir has existed for around one century, the aquatic environment has been the aim of few studies, compared to other southeastern reservoirs. However, it is the only of the three studied reservoirs to have former data on the ichthyic community. The first extens ...
... Even though the Ribeirão das Lajes reservoir has existed for around one century, the aquatic environment has been the aim of few studies, compared to other southeastern reservoirs. However, it is the only of the three studied reservoirs to have former data on the ichthyic community. The first extens ...
Disease Spreading on Ecological Multiplex
... Processes in which diseases spread and sustain inside of different types of populations were always interesting subjects for epidemiologists. In recent years, ecologists draw the attention to the fact that not only hosts but also the other species in the community can affect the process of disease s ...
... Processes in which diseases spread and sustain inside of different types of populations were always interesting subjects for epidemiologists. In recent years, ecologists draw the attention to the fact that not only hosts but also the other species in the community can affect the process of disease s ...
Mountain Cultures, Keystone Species
... implications on local livelihoods. In a region with relatively few economic opportunities, promising activities such as tourism will be negatively affected by the loss of attractions, such as wildlife, and increased land degradation. • PhotoVoice, and similar participant-led explorations and learnin ...
... implications on local livelihoods. In a region with relatively few economic opportunities, promising activities such as tourism will be negatively affected by the loss of attractions, such as wildlife, and increased land degradation. • PhotoVoice, and similar participant-led explorations and learnin ...
114. Hines, D.E. and Pawlik, J.R. 2012
... result of the types of defensive mechanisms available to non-scleractinian zoantharians, these cnidarians may rely on chemical or nematocyst defenses, or a combination of both types of defense. Another possible defensive strategy for non-scleractinian zoantharians is low nutritional quality. Poor fo ...
... result of the types of defensive mechanisms available to non-scleractinian zoantharians, these cnidarians may rely on chemical or nematocyst defenses, or a combination of both types of defense. Another possible defensive strategy for non-scleractinian zoantharians is low nutritional quality. Poor fo ...
Fauna Conservation Enclosure report
... Other conservation priority species considered for possible reintroduction to Balijup in the future include Tammar Wallaby, Brush Tailed Phascogale, Western Ring tailed Possum and Brush tailed Possum (with Woylie, Black Gloved Wallaby and other fauna species also assessed but of much less likely sui ...
... Other conservation priority species considered for possible reintroduction to Balijup in the future include Tammar Wallaby, Brush Tailed Phascogale, Western Ring tailed Possum and Brush tailed Possum (with Woylie, Black Gloved Wallaby and other fauna species also assessed but of much less likely sui ...
Patterns of species diversity and phylogenetic structure of vascular
... relatedness of species occurring in a community represents the balance of different ecological and evolutionary processes that determine their distribution and abundance (Webb et al. 2002). Nonrandom phylogenetic structure of communities at large-scales is the result of overlap of species ranges cau ...
... relatedness of species occurring in a community represents the balance of different ecological and evolutionary processes that determine their distribution and abundance (Webb et al. 2002). Nonrandom phylogenetic structure of communities at large-scales is the result of overlap of species ranges cau ...
The inability of northern whelks to drill the range extending barnacle
... 1) Do whelks prefer to drill other barnacles more than Tetraclita? In both lab and field studies, N. ostrina and N. canaliculata demonstrated a clear preference for barnacle species other than Tetraclita (Figures 15). N. ostrina from Kibesillah Hill and Soberanes Point were unable or unwilling to dr ...
... 1) Do whelks prefer to drill other barnacles more than Tetraclita? In both lab and field studies, N. ostrina and N. canaliculata demonstrated a clear preference for barnacle species other than Tetraclita (Figures 15). N. ostrina from Kibesillah Hill and Soberanes Point were unable or unwilling to dr ...
Species resistance and community response to wind disturbance
... have underestimated spread rates (e.g. Weinberger 1982), in part because they assumed that the spread rate was constant and exponentially bounded (Weinberger 1982). Current empirical approaches to estimating LDD have made progress in approximating the spread of populations, but have proved sensitive ...
... have underestimated spread rates (e.g. Weinberger 1982), in part because they assumed that the spread rate was constant and exponentially bounded (Weinberger 1982). Current empirical approaches to estimating LDD have made progress in approximating the spread of populations, but have proved sensitive ...
Open Research Online Identifying indicators of atmospheric nitrogen
... each square (see Smart et al., 2003 for further details). All sampling units were 2 x 2 ...
... each square (see Smart et al., 2003 for further details). All sampling units were 2 x 2 ...
The effect of agricultural diversity and crop choice on
... been theoretical in application, the use of functional trait diversity comparisons could be very useful in understanding the functional differences between ecological communities. The approach has not been applied widely because of the limited availability of trait information; however, here we appl ...
... been theoretical in application, the use of functional trait diversity comparisons could be very useful in understanding the functional differences between ecological communities. The approach has not been applied widely because of the limited availability of trait information; however, here we appl ...
midwest furbearer group
... now established in parts of the Midwest, 2) transient males have been found with increasing regularity, and 3) suitable habitat occurs in most, if not all states. Biologists recommended the following actions regarding management of cougars in the Midwest: 1) manage cougars at appropriate spatial sca ...
... now established in parts of the Midwest, 2) transient males have been found with increasing regularity, and 3) suitable habitat occurs in most, if not all states. Biologists recommended the following actions regarding management of cougars in the Midwest: 1) manage cougars at appropriate spatial sca ...
Plant species traits are the predominant control on
... Species-specific decomposition records and the traits of green leaves and undecomposed leaf litter were collected from published and unpublished sources based on experimental multi-species incubations (see Appendix S1). In most cases, the data were contributed directly by the lead author of the orig ...
... Species-specific decomposition records and the traits of green leaves and undecomposed leaf litter were collected from published and unpublished sources based on experimental multi-species incubations (see Appendix S1). In most cases, the data were contributed directly by the lead author of the orig ...
Patterns of morphology and resource use in North American desert
... predation and competition, have been advanced as the ultimate cause of the patterns. We outline the wav in which each of these factors could produce observed community-level patterns and review the evidence for the action of each factor. We conclude that the "competition" hypothesis has more support ...
... predation and competition, have been advanced as the ultimate cause of the patterns. We outline the wav in which each of these factors could produce observed community-level patterns and review the evidence for the action of each factor. We conclude that the "competition" hypothesis has more support ...
Seasonal variations in species composition, abundance, biomass
... investigated in the tropical estuarine and mangrove systems of Parangipettai, South India, monthly from January to December 1994. There were remarkable seasonal variations in environmental parameters, chlorophyll a concentrations and abundance, biomass and production rates of tintinnids: highest in ...
... investigated in the tropical estuarine and mangrove systems of Parangipettai, South India, monthly from January to December 1994. There were remarkable seasonal variations in environmental parameters, chlorophyll a concentrations and abundance, biomass and production rates of tintinnids: highest in ...
Evidence for a Mu¨ llerian mimetic radiation in Asian pitvipers
... Since this species is highly polymorphic within populations, and allopatric to any other banded pitvipers, it is apparent that Müllerian mimicry is not an explanation for the presence of a banded colour pattern in this species, but nevertheless it may be for geographically close populations of P. s ...
... Since this species is highly polymorphic within populations, and allopatric to any other banded pitvipers, it is apparent that Müllerian mimicry is not an explanation for the presence of a banded colour pattern in this species, but nevertheless it may be for geographically close populations of P. s ...
Is Infectious Disease Just Another Type of Predator
... species may vary in their vulnerability to the consumer, may interfere with capture of more profitable resources, or may be completely invulnerable (Grover 1995, 1997; Holt et al. 2003; Schmidt and Ostfeld 2001; Begon, chapter 1, this volume). In this multiple nutrient–one resource species case (fig ...
... species may vary in their vulnerability to the consumer, may interfere with capture of more profitable resources, or may be completely invulnerable (Grover 1995, 1997; Holt et al. 2003; Schmidt and Ostfeld 2001; Begon, chapter 1, this volume). In this multiple nutrient–one resource species case (fig ...
Chapter 17 Origin of Species
... accumulate gene pool change without the allele frequency changes being swamped by migration into the deme from neighboring demes? ...
... accumulate gene pool change without the allele frequency changes being swamped by migration into the deme from neighboring demes? ...
Modeling foundation species in food webs
... Foundation species can interact trophically within a community, but they exert their influence primarily through non-trophic effects (Ellison and Baiser, in press). Some examples of nontrophic actions of foundation species include: altering local climates and microclimates (e.g., Schöeb et al. 2012 ...
... Foundation species can interact trophically within a community, but they exert their influence primarily through non-trophic effects (Ellison and Baiser, in press). Some examples of nontrophic actions of foundation species include: altering local climates and microclimates (e.g., Schöeb et al. 2012 ...
How Do Species Interactions Affect Evolutionary Dynamics Across
... across species and the relative importance of each parameter on observed amounts of change. More comparative studies are needed, either experimental or observational, to determine evolutionary rates among species and what features correlate with them (Table 1). Are responses correlated or uncorrelat ...
... across species and the relative importance of each parameter on observed amounts of change. More comparative studies are needed, either experimental or observational, to determine evolutionary rates among species and what features correlate with them (Table 1). Are responses correlated or uncorrelat ...
Picture - Emanuel A. Fronhofer
... towards potentially suitable habitat in grey. These stand in the focus of many scientific studies. As most species do not live in homogeneous habitat, but in more or less distinct patches of suitable habitat (blue patches in the upper left inset), dispersal between these is the key mechanism allowin ...
... towards potentially suitable habitat in grey. These stand in the focus of many scientific studies. As most species do not live in homogeneous habitat, but in more or less distinct patches of suitable habitat (blue patches in the upper left inset), dispersal between these is the key mechanism allowin ...
Consistency of species ranking based on functional leaf traits
... whole set of species except Phillyrea latifolia (an evergreen small tree), which did not produce new leaves at that site in 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 ...
... whole set of species except Phillyrea latifolia (an evergreen small tree), which did not produce new leaves at that site in 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 ...
Life history, population dynamics, standing biomass and
... Mesocyclops longisetus (Melão & Rocha, 2004). Production was calculated for each species separately, using the method based on their population dynamics. In order to analyze the factors regulating the production, population dynamics were related to environmental factors. The results of these analysi ...
... Mesocyclops longisetus (Melão & Rocha, 2004). Production was calculated for each species separately, using the method based on their population dynamics. In order to analyze the factors regulating the production, population dynamics were related to environmental factors. The results of these analysi ...