Character Displacement in Giant Rhinoceros Beetles
... allopatry or in sympatry, I conducted ANOVAs using the mean value of each character in each location as a single value. The variation among the character values within allopatry and sympatry constituted the basis for error (tables 3, 4). To determine the effect of allopatry/sympatry on the relations ...
... allopatry or in sympatry, I conducted ANOVAs using the mean value of each character in each location as a single value. The variation among the character values within allopatry and sympatry constituted the basis for error (tables 3, 4). To determine the effect of allopatry/sympatry on the relations ...
Bridled Nailtail Wallaby (Onychogalea fraenata)
... Bridled Nailtail is to hide rather than flee. ...
... Bridled Nailtail is to hide rather than flee. ...
Reptile Survey - Planning Public Access
... Snakes may occupy fairly large ranges, sometimes covering several kilometres during the course of a year. In other circumstances, however, movements are much more limited. Often they move from drier habitats to wetter parts for the summer months. They usually return to the same hibernation areas eac ...
... Snakes may occupy fairly large ranges, sometimes covering several kilometres during the course of a year. In other circumstances, however, movements are much more limited. Often they move from drier habitats to wetter parts for the summer months. They usually return to the same hibernation areas eac ...
Why copulatory organs provide so many useful taxonomic characters
... of insect genitalia in general also exists (Tuxen, 1970). Large differences in male genitalia often allow otherwise very similar and, on other grounds, closely related species to be distinguished with ease. Yet, in some cases, the organs are very uniform in at least certain aspects of their morpholo ...
... of insect genitalia in general also exists (Tuxen, 1970). Large differences in male genitalia often allow otherwise very similar and, on other grounds, closely related species to be distinguished with ease. Yet, in some cases, the organs are very uniform in at least certain aspects of their morpholo ...
Echolocation in sympatric Peale`s dolphins (Lagenorhynchus
... water. They presumably all use echolocation to find and capture prey, but little is known about the evolutionary forces shaping the speciation and biosonar source parameters of toothed whales (Wood et al., 1980). In three phylogenetically different groups of toothed whales [Phoconoidea, Cephalorhync ...
... water. They presumably all use echolocation to find and capture prey, but little is known about the evolutionary forces shaping the speciation and biosonar source parameters of toothed whales (Wood et al., 1980). In three phylogenetically different groups of toothed whales [Phoconoidea, Cephalorhync ...
leaf litter ant assemblage in a natural fragmented dry forest
... Understanding the spatial patterns of species distribution is essential to characterize the structure of communities, to optimize species inventories (Leponce et al., 2004) and to evaluate the impact of biotic and abiotic variables. Little is known about the fine spatial scaling of the majority of s ...
... Understanding the spatial patterns of species distribution is essential to characterize the structure of communities, to optimize species inventories (Leponce et al., 2004) and to evaluate the impact of biotic and abiotic variables. Little is known about the fine spatial scaling of the majority of s ...
Scaling environmental change through the community
... function only recently (Landsberg et al., 1999; Walker et al., 1999; Hooper et al., 2002; Lavorel & Garnier, 2002; Naeem & Wright, 2003). Here, we extend this approach to the challenge of scaling processes from individuals to ecosystems through the community level in the context of environmental cha ...
... function only recently (Landsberg et al., 1999; Walker et al., 1999; Hooper et al., 2002; Lavorel & Garnier, 2002; Naeem & Wright, 2003). Here, we extend this approach to the challenge of scaling processes from individuals to ecosystems through the community level in the context of environmental cha ...
Impacts of climate change on the future of biodiversity
... species can in theory change, and changes have already been observed, along three distinct but non-exclusive axes (Fig. 2): spatial, temporal or self. The first two axes correspond to easily observable and well documented responses to global warming (Parmesan 2006). ÔSelfÕ corresponds to less visibl ...
... species can in theory change, and changes have already been observed, along three distinct but non-exclusive axes (Fig. 2): spatial, temporal or self. The first two axes correspond to easily observable and well documented responses to global warming (Parmesan 2006). ÔSelfÕ corresponds to less visibl ...
Aphid herbivory as a potential driver of primary succession in
... and large grazers) on late successional development (Maun 2009). For the particular case of insect herbivores, their role has been studied in species-rich habitats of inner dunes or in secondary succession (Bach 1994, 2001). For early dune seral stages, the literature mainly covers the role of (a)bi ...
... and large grazers) on late successional development (Maun 2009). For the particular case of insect herbivores, their role has been studied in species-rich habitats of inner dunes or in secondary succession (Bach 1994, 2001). For early dune seral stages, the literature mainly covers the role of (a)bi ...
Provided for non-commercial research and educational use only.
... mixing counteracts the emergence of patches. In a well-mixed environment, all organisms potentially interact with each other, much in contrast to terrestrial systems, where many species are either ‘sessile’ (plants) or have very limited range sizes (most small invertebrates except for flying insects ...
... mixing counteracts the emergence of patches. In a well-mixed environment, all organisms potentially interact with each other, much in contrast to terrestrial systems, where many species are either ‘sessile’ (plants) or have very limited range sizes (most small invertebrates except for flying insects ...
Chapter 2
... explanation here, or at least state that the topic will be discussed in more detail later in the ...
... explanation here, or at least state that the topic will be discussed in more detail later in the ...
Modeling species fitness in competitive environments
... for the step where we account for resource consumption RTW ago. For this, we need information on what portion of individuals consumed the resource RTW ago (c) for every S(K). Since resource density and species density change with time, consequently so does consumption probability, death rate and bir ...
... for the step where we account for resource consumption RTW ago. For this, we need information on what portion of individuals consumed the resource RTW ago (c) for every S(K). Since resource density and species density change with time, consequently so does consumption probability, death rate and bir ...
juvenile stages of cybdelis, a key genus uniting the diverse
... Hamadryas amphinome (L. D. Otero, pers. obs.) was also not seen in Cybdelis larvae. Of the eight larvae of C. phaesyla collected in 1995, all five third instar larvae and one second instar larva were parasitized by a tachinid fly. Adults of both sexes of Cybdelis are often seen on the ground in sunn ...
... Hamadryas amphinome (L. D. Otero, pers. obs.) was also not seen in Cybdelis larvae. Of the eight larvae of C. phaesyla collected in 1995, all five third instar larvae and one second instar larva were parasitized by a tachinid fly. Adults of both sexes of Cybdelis are often seen on the ground in sunn ...
Low biodiversity state persists two decades after cessation of nutrient enrichment
... observed lack of recovery depended on neighbour plot richness (Hawthorne 2012), which was quantified as the mean number of species in all adjacent plots (including up to eight plots along the four edges and at the four corners of a plot completely surrounded by other plots). Movement of plants betwe ...
... observed lack of recovery depended on neighbour plot richness (Hawthorne 2012), which was quantified as the mean number of species in all adjacent plots (including up to eight plots along the four edges and at the four corners of a plot completely surrounded by other plots). Movement of plants betwe ...
More than a meal integrating nonfeeding interactions into food webs
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
PAI EO - Cornell College
... of relatively abrupt change. In marine benthic fossil assemblages, where the pattern was first recognized, the majority of species lineages (60 to more than 80%) are present in their respective biofacies throughout timespans of 3-7 million years. Most lineages display morphological stasis or only ve ...
... of relatively abrupt change. In marine benthic fossil assemblages, where the pattern was first recognized, the majority of species lineages (60 to more than 80%) are present in their respective biofacies throughout timespans of 3-7 million years. Most lineages display morphological stasis or only ve ...
Predicting Distribution, Habitat Suitability and the Potential Loss of
... variables, I found S. formosa to be linked to much greater than average rainfall and greater than average slopes throughout the study area. S. formosa presence points were highly correlated with mature forests (frequency = 0.86), consisting of evergreen broadleaf, deciduous broadleaf and mixed fores ...
... variables, I found S. formosa to be linked to much greater than average rainfall and greater than average slopes throughout the study area. S. formosa presence points were highly correlated with mature forests (frequency = 0.86), consisting of evergreen broadleaf, deciduous broadleaf and mixed fores ...
More than a meal integrating nonfeeding interactions into food webs
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
Impacts of Pollutants on Beavers and Otters with Implications for
... suggest that they might serve together as a sentinel species unit in light of aquatic contamination. Considering the two species is interesting because of their shared habitat yet different trophic levels. River otters are common in and around beaver ponds (LeBlanc et al. 2007) and have been conside ...
... suggest that they might serve together as a sentinel species unit in light of aquatic contamination. Considering the two species is interesting because of their shared habitat yet different trophic levels. River otters are common in and around beaver ponds (LeBlanc et al. 2007) and have been conside ...
A perspective on amphibian conservation in the United States
... Northeastern and the Southeastern United States (where the majority of amphibian species reside), there are lower densities of academic herpetologists (exceptions occur around major universities and their field stations), few state herpetologists and few federal herpetologists. In the Northeast, cit ...
... Northeastern and the Southeastern United States (where the majority of amphibian species reside), there are lower densities of academic herpetologists (exceptions occur around major universities and their field stations), few state herpetologists and few federal herpetologists. In the Northeast, cit ...
Time course of plant diversity effects on
... more crucial to the successful reproduction and hence spreading of the invading population (but see Roscher et al. 2009a). In this study we investigated the effects of plant species richness, functional group richness, particular functional groups and insect herbivore reduction on the establishment ...
... more crucial to the successful reproduction and hence spreading of the invading population (but see Roscher et al. 2009a). In this study we investigated the effects of plant species richness, functional group richness, particular functional groups and insect herbivore reduction on the establishment ...
Precipitation and aridity index regulating spatial patterns of
... values of 240 g m-2 of ANPP and 0.75 of species diversity. In the low productivity sites, there was ...
... values of 240 g m-2 of ANPP and 0.75 of species diversity. In the low productivity sites, there was ...
Rodent Burrow Systems in North America
... species include ground squirrels (Spermophilus spp.), chipmunks (Eutamias spp. and Tamias striatus), prairie dogs (Cynomys spp.), marmots (Marmota spp.), mountain beaver (Aplodontia rufa), pocket gophers (Geomys spp., Thomomys spp., and Pappogeomys spp.), kangaroo rats (Dipodomys spp.), voles (Micro ...
... species include ground squirrels (Spermophilus spp.), chipmunks (Eutamias spp. and Tamias striatus), prairie dogs (Cynomys spp.), marmots (Marmota spp.), mountain beaver (Aplodontia rufa), pocket gophers (Geomys spp., Thomomys spp., and Pappogeomys spp.), kangaroo rats (Dipodomys spp.), voles (Micro ...
Field Po y Red Clover Bluebe Wheat Cocksf t Gra English Oak A le
... Aim: To have no cards left in your hand Strategy: To link all cards into foodchains, protect yours with + event cards and slow opponents with - event cards Set up: For 2-5 players. Remove ‘Home’ cards; deal out 8 cards each. Players keep their hand hidden. Rest of the pack face down in a pile. Turn ...
... Aim: To have no cards left in your hand Strategy: To link all cards into foodchains, protect yours with + event cards and slow opponents with - event cards Set up: For 2-5 players. Remove ‘Home’ cards; deal out 8 cards each. Players keep their hand hidden. Rest of the pack face down in a pile. Turn ...
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.