- Thread starter
- #11
Moving ahead, let's touch on the problem of ecological species .
In some situations, what may appear to be a good species is actually something slightly more effusive. It's an ecological form adapted to a unique habitat. It's essentially identical with another ecological form living in another unique habitat. They might be described as distinct species and given the situation where both were separated off onto separate islands they just might become actual species, that is two different forms that simply cannot interbreed.
In many regions where diverse habitats are spread out over huge expanses, ancient ecological histories producing endless mosaics branching out across the foothills or savannah for example, there will be small pockets of different ecological species thriving on their own respective ecological oases.
One way to visualise this is to imagine elevation of a mountain range. The geographic populations of a high altitude eco-species may be adapted to very different ecological parameters than those at the lowest elevational zone of that same mountain range. A third and even forth elevational form, quite distinctive from the aforementioned high and low altitude forms may exist that are somewhat intermediate to the same. They may also be quite unlike the other forms, so different or uncharacteristic is the preferred habitat of that one mid-elevational form.
Lophura annamensis engelbachii/lewisi
For example, the Silver Pheasant lives at high elevations. They are adapted for life in deciduous montane bamboo grassland and montane mixed pine and bamboo forest.
The seemingly showy males are quite camouflaged at night and when snow, and/or winter grassland are dominating features of the landscape. This is an important attribute of phenotype in pheasants that needs to be kept in mind at all times. People get into the habit of looking at wild species as fitting into some standard of perfection, which is just silly. There are no standards in nature. A male silver pheasant that lives at 12-15,000' elevation is often much showier and whiter with finer vermiculation than a form that lives at more moderate elevations. Females are equally tied to the ecosystem- their critical camouflage being on the nest and foraging in the forest.
Lophura diardi
Concurrently, the closely related Crested Fireback Pheasant lives at the lowest elevations, adapted for life in swamp forest and bamboo hill forest.
It is concealed in the shade of the forest.
and between them in elevation resides the Edward's Kalij Pheasant, which lives at moderate elevations, adapted for life in sub montane evergreen forest and cloud forest.
There are regions where two respective habitats merge or crash into one another. These regions are unstable in nature. They migrate up and down the mountain slopes and back and forth across box canyons over millenia. Similarly unstable "hybrid swarms" have been known to follow them.
Imperial Kalij Pheasant
The Imperial Pheasant is one such creature. Wherever the Edward's Kalij comes into contact with high altitude silver or low altitude fireback it produces the Imperial morph.
To a systematist, this might suggest that the Imperial morph may be a close approximation of the common ancestor of all the aforementioned ecological forms{ species.
In other words, before there were any Silver, Edwards, or Fireback there may have been a small, dark species that inhabited an ecological zone that gave way to new forest types over time. With the new forest habitats evolved new ecological species of Lophura pheasant until there came to be high altitude forms, moderate altitude forms and low altitude forms.
Even while the Imperial known to us in captivity may resemble a theoretical ancestor, it is not a species.
The fact that it is not a species should not discourage people from maintaining any populations that might still exist from the selective breeding initiatives of Delacour et al.
It should however discourage further allocation of conservation dollars into locating wild populations of the morph.
I was asked to produce the Imperialis morph by conservation biologists, which I did using the three species involved. Other scientists followed suit in order for independent verification of the phenomenon.
It's unlikely that we will share or trade offspring across the sea with one another but the potential is there, if it were one day determined that the hybrid progeny maintained might be of further use to science. Inheritance experiments for example. But neither facility will be polluting the gene pool of either of the parental species with the Imperial morphs' demes.
I'm not relating this experience to condone or encourage intentional hybrids or intercrosses but rather to illustrate the complexity of the issue and to explain the value that some hybrids or intercrosses have been to science.
As so few people rearing wild birds or domestic breeds these days seem to comprehend the difference between a species and a breed, much less subspecies, ecospecies or superspecies- it seems prudent to discourage everyone from producing intercrosses or hybrids of any kind. This has been the driving message of all the serious aviculturists for many decades now. It is disturbing to everyone invested in the discipline of aviculture and conservation how few hobbyists take this to heart. They are in the get rich quick and f(oul) everyone that doesn't like it guild.
I would however, encourage the beginner to only work with domestic mutations instead of wild species and suggest they move on to existing hybrid mutations; building on experience, all the while embracing an ethic to keep lines separate and insist all that you encounter to do the same. Some are puzzled at this suggestion. These selectionists are going to kick everyone's butt with the level of documentation that they can and must bring to the field to make their investment worthwhile. Again, study the domestic cat industry.
It's unfortunate that some people feel that they need to continue making money off higher and higher % wild type hybrids- and unconscionable that they would then go on to sell that surplus stock at every swap meet and bird club sale as pure anything- to make a dollar.
You know who you are and you suck rotten eggs right out of the incubator. Knock it off. If you are a hybridologist follow the example of the exotic feline industry and get far and removed from the mother aviculturist that only capitulates non-mixed stock.
In some situations, what may appear to be a good species is actually something slightly more effusive. It's an ecological form adapted to a unique habitat. It's essentially identical with another ecological form living in another unique habitat. They might be described as distinct species and given the situation where both were separated off onto separate islands they just might become actual species, that is two different forms that simply cannot interbreed.
In many regions where diverse habitats are spread out over huge expanses, ancient ecological histories producing endless mosaics branching out across the foothills or savannah for example, there will be small pockets of different ecological species thriving on their own respective ecological oases.
One way to visualise this is to imagine elevation of a mountain range. The geographic populations of a high altitude eco-species may be adapted to very different ecological parameters than those at the lowest elevational zone of that same mountain range. A third and even forth elevational form, quite distinctive from the aforementioned high and low altitude forms may exist that are somewhat intermediate to the same. They may also be quite unlike the other forms, so different or uncharacteristic is the preferred habitat of that one mid-elevational form.


Lophura annamensis engelbachii/lewisi
For example, the Silver Pheasant lives at high elevations. They are adapted for life in deciduous montane bamboo grassland and montane mixed pine and bamboo forest.
The seemingly showy males are quite camouflaged at night and when snow, and/or winter grassland are dominating features of the landscape. This is an important attribute of phenotype in pheasants that needs to be kept in mind at all times. People get into the habit of looking at wild species as fitting into some standard of perfection, which is just silly. There are no standards in nature. A male silver pheasant that lives at 12-15,000' elevation is often much showier and whiter with finer vermiculation than a form that lives at more moderate elevations. Females are equally tied to the ecosystem- their critical camouflage being on the nest and foraging in the forest.


Lophura diardi
Concurrently, the closely related Crested Fireback Pheasant lives at the lowest elevations, adapted for life in swamp forest and bamboo hill forest.
It is concealed in the shade of the forest.


and between them in elevation resides the Edward's Kalij Pheasant, which lives at moderate elevations, adapted for life in sub montane evergreen forest and cloud forest.
There are regions where two respective habitats merge or crash into one another. These regions are unstable in nature. They migrate up and down the mountain slopes and back and forth across box canyons over millenia. Similarly unstable "hybrid swarms" have been known to follow them.


Imperial Kalij Pheasant
The Imperial Pheasant is one such creature. Wherever the Edward's Kalij comes into contact with high altitude silver or low altitude fireback it produces the Imperial morph.
To a systematist, this might suggest that the Imperial morph may be a close approximation of the common ancestor of all the aforementioned ecological forms{ species.
In other words, before there were any Silver, Edwards, or Fireback there may have been a small, dark species that inhabited an ecological zone that gave way to new forest types over time. With the new forest habitats evolved new ecological species of Lophura pheasant until there came to be high altitude forms, moderate altitude forms and low altitude forms.
Even while the Imperial known to us in captivity may resemble a theoretical ancestor, it is not a species.
The fact that it is not a species should not discourage people from maintaining any populations that might still exist from the selective breeding initiatives of Delacour et al.
It should however discourage further allocation of conservation dollars into locating wild populations of the morph.
I was asked to produce the Imperialis morph by conservation biologists, which I did using the three species involved. Other scientists followed suit in order for independent verification of the phenomenon.
It's unlikely that we will share or trade offspring across the sea with one another but the potential is there, if it were one day determined that the hybrid progeny maintained might be of further use to science. Inheritance experiments for example. But neither facility will be polluting the gene pool of either of the parental species with the Imperial morphs' demes.
I'm not relating this experience to condone or encourage intentional hybrids or intercrosses but rather to illustrate the complexity of the issue and to explain the value that some hybrids or intercrosses have been to science.
As so few people rearing wild birds or domestic breeds these days seem to comprehend the difference between a species and a breed, much less subspecies, ecospecies or superspecies- it seems prudent to discourage everyone from producing intercrosses or hybrids of any kind. This has been the driving message of all the serious aviculturists for many decades now. It is disturbing to everyone invested in the discipline of aviculture and conservation how few hobbyists take this to heart. They are in the get rich quick and f(oul) everyone that doesn't like it guild.
I would however, encourage the beginner to only work with domestic mutations instead of wild species and suggest they move on to existing hybrid mutations; building on experience, all the while embracing an ethic to keep lines separate and insist all that you encounter to do the same. Some are puzzled at this suggestion. These selectionists are going to kick everyone's butt with the level of documentation that they can and must bring to the field to make their investment worthwhile. Again, study the domestic cat industry.
It's unfortunate that some people feel that they need to continue making money off higher and higher % wild type hybrids- and unconscionable that they would then go on to sell that surplus stock at every swap meet and bird club sale as pure anything- to make a dollar.
You know who you are and you suck rotten eggs right out of the incubator. Knock it off. If you are a hybridologist follow the example of the exotic feline industry and get far and removed from the mother aviculturist that only capitulates non-mixed stock.
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