Are You suprised
... Distributions of invasive species are often patchy; however, the mechanisms regulating these patchy distributions are poorly understood. Organisms with short-lived larvae provide an opportunity to test whether these distributions are dispersal-limited or mediated through post-metamorphic processes. ...
... Distributions of invasive species are often patchy; however, the mechanisms regulating these patchy distributions are poorly understood. Organisms with short-lived larvae provide an opportunity to test whether these distributions are dispersal-limited or mediated through post-metamorphic processes. ...
Environmental responses, not species interactions
... of environmental stochasticity and interspecific interactions to explain the observed variation of species synchrony, they did not use the model to quantify how much synchrony would change if each factor were removed. Second, they relied on popluation abundance data that may or may not reliably capt ...
... of environmental stochasticity and interspecific interactions to explain the observed variation of species synchrony, they did not use the model to quantify how much synchrony would change if each factor were removed. Second, they relied on popluation abundance data that may or may not reliably capt ...
Tehachapi Pocket Mouse (Perognathus alticolus
... California pocket mouse (Chaetodipus californicus), little pocket mouse (Perognathus longimembris), agile kangaroo rat (Dipodomys agilis), desert woodrat (Neotoma lepida), pocket gopher (Thomomys bottae), and California vole (Microtus californicus) (Jones & Stokes 2008). How the Tehachapi pocket mou ...
... California pocket mouse (Chaetodipus californicus), little pocket mouse (Perognathus longimembris), agile kangaroo rat (Dipodomys agilis), desert woodrat (Neotoma lepida), pocket gopher (Thomomys bottae), and California vole (Microtus californicus) (Jones & Stokes 2008). How the Tehachapi pocket mou ...
Threats to Biodiversity - Wildlife Ecology and Conservation
... introduced into East Africa at the end of last century with cattle (Plowright 1982). RPV spread throughout subSaharan Africa, producing mortality as high as 90% in some species. Travelers through the region report that in some places the ground was littered with carcasses and the vultures were so sa ...
... introduced into East Africa at the end of last century with cattle (Plowright 1982). RPV spread throughout subSaharan Africa, producing mortality as high as 90% in some species. Travelers through the region report that in some places the ground was littered with carcasses and the vultures were so sa ...
mitigating the impacts of human land
... you in Botswana but lost you just as we began, I hope the universe has led you to paradise, I will always miss you. To Gaseitsiwe Masunga for your help in obtaining data and for being a friend. To Steve Vrooman for your many contributions to my papers and general support and friendship throughout th ...
... you in Botswana but lost you just as we began, I hope the universe has led you to paradise, I will always miss you. To Gaseitsiwe Masunga for your help in obtaining data and for being a friend. To Steve Vrooman for your many contributions to my papers and general support and friendship throughout th ...
Effects of Forest Fragment Size and Successional Stage on Mixed
... borders from early morning until mid-afternoon. Flocks were located and followed until lost from sight, mostly because of steep terrain or dense understory. Flock observations were conducted with 7 X 35 mm binoculars. Bird associations were considered as flocks following Stotz’s (1993) definition: a ...
... borders from early morning until mid-afternoon. Flocks were located and followed until lost from sight, mostly because of steep terrain or dense understory. Flock observations were conducted with 7 X 35 mm binoculars. Bird associations were considered as flocks following Stotz’s (1993) definition: a ...
leaf litter ant assemblage in a natural fragmented dry forest
... bromeliad density and vice versa, since the two environmental factors were correlated. Correlograms and periodograms of standardised residuals from the regression between these two factors showed the same highest peak(s) as the initial ones (as in Fig. 2C, D, G, H) although weak variations in period ...
... bromeliad density and vice versa, since the two environmental factors were correlated. Correlograms and periodograms of standardised residuals from the regression between these two factors showed the same highest peak(s) as the initial ones (as in Fig. 2C, D, G, H) although weak variations in period ...
INTERIM RECOVERY PLAN NO - Department of Parks and Wildlife
... Act 1950 in July 2004 and is currently ranked as Critically Endangered (CR) under World Conservation Union (IUCN 2001) Red List criteria C2a(i); D due to the species being in decline with no subpopulation containing more than 50 mature individuals, and the total population size estimated to number f ...
... Act 1950 in July 2004 and is currently ranked as Critically Endangered (CR) under World Conservation Union (IUCN 2001) Red List criteria C2a(i); D due to the species being in decline with no subpopulation containing more than 50 mature individuals, and the total population size estimated to number f ...
EU NON-NATIVE SPECIES RISK ANALYSIS – RISK ASSESSMENT
... According to IUCN, this species is often captured and sold as pets (Shekhar 2003) and there is some commercial trade in China, India and Nepal. (A. Choudury pers. comm.). In northern Viet Nam it is hunted and sold in wild meat markets in both Vietnam and China (S. Robertson pers. comm.).It is easy t ...
... According to IUCN, this species is often captured and sold as pets (Shekhar 2003) and there is some commercial trade in China, India and Nepal. (A. Choudury pers. comm.). In northern Viet Nam it is hunted and sold in wild meat markets in both Vietnam and China (S. Robertson pers. comm.).It is easy t ...
Factors Affecting the Social Behaviour of Crustaceans Living
... predicting the social behaviour of crustacean symbionts (Fig. 3A). This relationship was significantly smaller in species that inhabited their hosts in unstructured aggregations than in those that lived as single individuals on their hosts (one-way ANOVA, F3/7o= 3.5, P=0.02), but no other significan ...
... predicting the social behaviour of crustacean symbionts (Fig. 3A). This relationship was significantly smaller in species that inhabited their hosts in unstructured aggregations than in those that lived as single individuals on their hosts (one-way ANOVA, F3/7o= 3.5, P=0.02), but no other significan ...
Chapter 10 Gene flow and the evolutionary ecology of
... European colonies (representing 51.3% of multilocus genotypes, MLGs) to populations other than the one from which they were collected, compared to 18.3% of colonies (representing 24% of MLGs) in North America. When discriminant function analyses were performed on the full data sets of five microsate ...
... European colonies (representing 51.3% of multilocus genotypes, MLGs) to populations other than the one from which they were collected, compared to 18.3% of colonies (representing 24% of MLGs) in North America. When discriminant function analyses were performed on the full data sets of five microsate ...
6 Key Ecological Functions of wildlife Species
... databases have focused on how the presence of terrestrial vertebrates is influenced by environmental conditions, and have mostly ignored ecological interactions. WHR approaches have assumed that wildlife (W) basically is a function of habitat (H), or W = f(H). Further, most evaluations of biodiversi ...
... databases have focused on how the presence of terrestrial vertebrates is influenced by environmental conditions, and have mostly ignored ecological interactions. WHR approaches have assumed that wildlife (W) basically is a function of habitat (H), or W = f(H). Further, most evaluations of biodiversi ...
EXPERIMENTAL TESTS OF EFFECTS OF PLANT PRODUCTIVITY AND E S
... Abstract. Because the quantity, quality, and heterogeneity of resources should affect the diversity of consumers, plant productivity, plant composition, and plant diversity may influence the diversity of trophic levels higher up the food chain (‘‘bottom-up’’ control of diversity). Increasing plant p ...
... Abstract. Because the quantity, quality, and heterogeneity of resources should affect the diversity of consumers, plant productivity, plant composition, and plant diversity may influence the diversity of trophic levels higher up the food chain (‘‘bottom-up’’ control of diversity). Increasing plant p ...
pdf reprint
... an endangered species pose to individuals and the population as a whole. However, the use of a surrogate species, no matter how similar in behavior and biology, runs the risk of not accurately representing how the imperiled species will respond to restoration. Therefore, experiments using a surrogat ...
... an endangered species pose to individuals and the population as a whole. However, the use of a surrogate species, no matter how similar in behavior and biology, runs the risk of not accurately representing how the imperiled species will respond to restoration. Therefore, experiments using a surrogat ...
Functional redundancy in ecology and conservation
... will be related to intrinsic morphological and physiological attributes of an organism, ii) demographic attributes of a species (e.g. population r and K), and iii) en6ironmental factors such as temperature that will influence where an organism can perform its function. Species that are functionally ...
... will be related to intrinsic morphological and physiological attributes of an organism, ii) demographic attributes of a species (e.g. population r and K), and iii) en6ironmental factors such as temperature that will influence where an organism can perform its function. Species that are functionally ...
Linking feeding ecology and population abundance
... (Brosimum alicastrum; 716,000 kcal km 2 day 1). These calculations were used to suggest that this one fruiting tree species could sustain 1,700 individuals km 2 of primates, which is implausibly high. This conclusion was criticized by Cant (1980) who pointed out that (1) food availability changes bo ...
... (Brosimum alicastrum; 716,000 kcal km 2 day 1). These calculations were used to suggest that this one fruiting tree species could sustain 1,700 individuals km 2 of primates, which is implausibly high. This conclusion was criticized by Cant (1980) who pointed out that (1) food availability changes bo ...
Do changes in berry crops drive population fluctuations in small C
... combined) over 13 years (1997–2009) in the Kluane Lake region of the southwestern Yukon, Canada. M. rutilus is the dominant rodent in these forests, comprising 64% of the catch. Overwinter survival is a key demographic variable in all these rodents, and the winter food supply—principally berries pro ...
... combined) over 13 years (1997–2009) in the Kluane Lake region of the southwestern Yukon, Canada. M. rutilus is the dominant rodent in these forests, comprising 64% of the catch. Overwinter survival is a key demographic variable in all these rodents, and the winter food supply—principally berries pro ...
Colonization of artificial seagrass versus time and distance from
... 5 mm wide, the same width as Thalassia testudinum blades. Each clump contained 1000 cm2 of blade surface area, comprised of 100 'blades' grouped into 25 'shoots': 35 blades 8 cm long, 30 blades 10 cm long and 35 blades 12 cm long. Each shoot consisted of 1 blade of each length plus a fourth blade ra ...
... 5 mm wide, the same width as Thalassia testudinum blades. Each clump contained 1000 cm2 of blade surface area, comprised of 100 'blades' grouped into 25 'shoots': 35 blades 8 cm long, 30 blades 10 cm long and 35 blades 12 cm long. Each shoot consisted of 1 blade of each length plus a fourth blade ra ...
ESDay2013MediaSample.. - Endangered Species Coalition
... once in the last seven years. Jason Lauritsen, the Sancutary Director said that’s because adjacent wetlands, where the birds foraged, have been developed. He said the last time they did nest, in 2009, was after heavy rains from Tropical Storm Faye. “The result on the ground was significant flood, fa ...
... once in the last seven years. Jason Lauritsen, the Sancutary Director said that’s because adjacent wetlands, where the birds foraged, have been developed. He said the last time they did nest, in 2009, was after heavy rains from Tropical Storm Faye. “The result on the ground was significant flood, fa ...
press perturbations and the predictability of ecological interactions
... competition) and all possible indirect pathways through which species i and j are connected via linkages with intermediary species. The use of the inverse of the community matrix to quantify interaction strength is important for several reasons. First many natural (sensu Diamond 1986) and manipulati ...
... competition) and all possible indirect pathways through which species i and j are connected via linkages with intermediary species. The use of the inverse of the community matrix to quantify interaction strength is important for several reasons. First many natural (sensu Diamond 1986) and manipulati ...
Models, Mechanisms and Pathways of Succession
... For example, the "tolerance"mechanism of succession has at least two contrastingmeanings and is unlikely to be disentangledfrom the "inhibition" mechanism in field experiments.However, the understandingof particularspecies replacementsthroughexperimentand knowledgeof the conditions of a particularse ...
... For example, the "tolerance"mechanism of succession has at least two contrastingmeanings and is unlikely to be disentangledfrom the "inhibition" mechanism in field experiments.However, the understandingof particularspecies replacementsthroughexperimentand knowledgeof the conditions of a particularse ...
the effect of habitat change on the structure of dung beetle
... smaller dung beetles belonging to FG IV and V were dominant. None of the indices measuring species richness nor dominance showed significant differences between the four habitats. This does not, however, imply that the dung beetles were similarly affected by the different habitats, because the bioma ...
... smaller dung beetles belonging to FG IV and V were dominant. None of the indices measuring species richness nor dominance showed significant differences between the four habitats. This does not, however, imply that the dung beetles were similarly affected by the different habitats, because the bioma ...
Reiskind, M.H. and M.L. Wilson. 2008. Interspecific
... number of reasons. First, if they are strong competitors, this may help explain the differences in seasonal activity. The different seasonal activity patterns of these two species, in turn, may inßuence the epidemiology of bird-derived vector-borne viral encephalitides. For example, both of these sp ...
... number of reasons. First, if they are strong competitors, this may help explain the differences in seasonal activity. The different seasonal activity patterns of these two species, in turn, may inßuence the epidemiology of bird-derived vector-borne viral encephalitides. For example, both of these sp ...
The iconic keystone predator has a pathogen
... and possible transitions in ecological state might result. Further ecological twists are possible in a future where calcium carbonate shells may be more costly to construct as ocean acidification continues, where there is the potential for changing seawater temperatures, and where sea level is risin ...
... and possible transitions in ecological state might result. Further ecological twists are possible in a future where calcium carbonate shells may be more costly to construct as ocean acidification continues, where there is the potential for changing seawater temperatures, and where sea level is risin ...
Trophic complementarity drives the biodiversityecosystem
... complementarity as the ‘originality’ of a species in a food web relative to the other ones, based on the identity of the species it interacts with. Even in the absence of resource competition, two species sharing a common enemy may interact via ‘apparent’ competition (Holt 1997), wherein an increase ...
... complementarity as the ‘originality’ of a species in a food web relative to the other ones, based on the identity of the species it interacts with. Even in the absence of resource competition, two species sharing a common enemy may interact via ‘apparent’ competition (Holt 1997), wherein an increase ...