NAME: Barbara Lamar
LOCATION: Lockhart & McMahan, Caldwell County, Texas, USA
AWARD DATE: March 18, 2007Barbara's
introduction to her list and her area:
In classifying the following creatures, I used my memory, not a field guide, so the
creatures are grouped according to how theyre stored in my memory, mainly by
location in which Ive observed them. If I didnt already know a scientific
name, I looked it up on the Internet. Some of the scientific names may not be correct.
Some critters, such as the javelina, seem to be called by two different names. Im
close to 100% sure that the collared pecari and the javelina are one and the same animal.
Lockhart is a small city with around 11,000 residents. Rain that falls in Lockhart flows
into Plum Creek, which flows into the San Marcos River just south of Luling, Texas. Plum
Creek's water shows elevated nutrient levels and bacteria concentrations. I would guess
that it must also carry high levels of pesticide residues during the spring and fall, from
agricultural spraying. Milo, cotton, and cattle are the main commercial crops grown in
Caldwell County.
My land near McMahan is on the Carrizo Sandstone Ridge, locally known as the sand hills.
The ridge, which is said to have been a barrier island in the Gulf of Mexico during the
Eocene epoch, is now 150 to 200 miles inland and runs approximately parallel to the
present-day coast line. The soil in the sand hills is coarse sand over red clay, with a pH
somewhere between 5.5 and 6. There are very few nutrients in the soil, but a dense growth
of post oak, blackjack oak, hickory, farkleberry, American beauty berry, and yaupon holly
has boot-strapped itself into existence. Several years back, an oil company mistakenly
clear cut a swatch through my land (they got confused about where they were). It's been
interesting to watch the order in which the plants have come back, beginning with small
legume pioneer plants such as sensitive plant (Mimosa pudica), then larger legumes such as
Illinois Bundleflower (Desmanthus illinoensis) then hard-scrabble plants such as yaupon
holly that can send out runners to explore while keeping the main root system intact.
A couple of miles downhill, you find the heavy alkaline clay of the blackland prairie, and
the flora is dramatically different from up in the hills. The shift from one
"bioregion" to the other begins around halfway down the hill, where you begin to
see sandy loam instead of pure sand, and the pH goes from acidic to neutral. The first big
difference is the mesquite trees, which will grow to around halfway up the hill but no
farther. Pecan trees and live oak grow in the low lands. The grasses in the sand hills are
mainly little bluestem and sand love grass (Eragrostis trichodes). In the lowlands there
is now mostly introduced bermuda grass and Johnson grass. These won't grow in the sand
hills without loads of fertilizer. The difference in fauna is not so radical, although
there are some birds and lizards who seem to keep to one region or the other. The
javelinas and feral pigs stay in the hills, but I think this is for safety rather than
food preference. The dense growth of yaupon holly provides plenty of hiding places, and
since the sand hills were considered trash land, they've never been "settled" by
humans. Edible plants/seeds in the sand hills include American beauty berry (birds,
javelinas and pigs like them -- not good human food), dew berry, oak, hickory, paw paw,
and farkle berry. The paw paw in the sand hills is a closely related, but different,
species from the one generally used for human food. It's what you might call a dwarf
species, reaching only around 6 feet high at maturity, and ripens a bit earlier than
standard paw paw cultivars. For a long time, I've wanted to experiment with crossing the
sand hill paw paw with "regular" paw paw varieties (sorry, I don't have my book
at hand to look up the botanical names), but I've never found time to do that.
ANIMALS
MAMMALS
The following mammals live in the city:
1.Homo sapiens (humans)
2.Canis familiarus (domestic dogs)
3.Felis domesticus (domestic cat)
4.Didelphis virginiana (opossum)
5.Mephitis mephitis (striped skunk)
6.Procyon lotor (common raccoon)
7. Dasypus novemcinctus (armadillo) - one will ocassionally stray into town but the poor
things usually end up being run over by cars. Armadillos, who live in holes in the ground
when they're babies, were driven almost to extinction in our area by introduced fire ants.
A few of the armadillos were able to overcome this problem -- I never have figured out for
sure whether they adopted new nest-building techniques or whether the genetic potential
was there for some to be resistant to ant venom. It's now common to see armadillos
grubbing around in fire ant mounds, chowing down on the ant larvae, so my guess is that
there were a few who were resistant to ant venom, and their descendants have now replaced
the original armadillo population.
8. Ratus norveticus (Norwegian rat)
9. Mus musculus (house mouse)
10. Sciurus Carolinensis (gray squirrel)
11. Tadarida brasiliensis (Mexican free tailed bat)
The following mammals mainly keep to rural areas:
12. Capra hircus (goat)
13. Taxidea taxus (American badger)
14. Sus scrofa (domestic pig)
15. Odocoileus virginianus (white tailed deer)
16. Bos taurus (Texas Longhorn)
17 Canis latrans (coyote) [theys guys sometimes come into the city but mostly keep to
rural areas]
18 Pecari tajacu aka Tayassu tajacu (javelina or collared pecari)
19 Felis concolor (puma or mountain lion)
20. vilagus floridanus (cottontail rabbit)
21. Lepus californicus (jack rabbit)
22. Mustela putorius (domestic ferret)
23. Vaccaria hispanica (cattle)
24. Eqquus caballus (horse)
25. Urocyon cineroeargenteus (gray fox)
26. Taxidea taxus (American badger)
27. Sus scrofa (domestic pig)
28. Odocoileus virginianus (white tailed deer)
29. Ovis aries (sheep)
30. Chaetodipus hispidus (Hispid pocket mouse)
31. Peromyscus attwateri (Texas mouse)
32. Baiomys taylori (pigmy mouse)
33. Rattus rattus (rat) [this one actually lives mainly in the city, but I didnt
want to renumber everything in order to put it above with the city dwellers]
34. Myocastor coypus (nutria)
35. Bassariscus astutus (ringtail raccoon)
36. Sus scrofa (feral pig) - I've gotten into arguments about this, because no one believe
it, but I promise I've seen feral pigs traveling with packs of javelinas.
37. Bison bison (bison) - these guys live only as captives these days, not in the wild
38. Scalopus aquaticus (Eastern mole)
39. Cavia porcellus (guinea pig) [lives in city as pet]
BIRDS
40. Passerina ciris (painted bunting)
41. Meleagris gallopavo (wild and domestic turkey)
42. Gallus domesticus (domestic chicken)
43. Columbia livia (pigeon)
44. Guinea Numida meleagris. (guinea fowl)
45. Anas platyrhyncha (duck)
46. Bubulcus ibis (cattle egret)
47. Ardea herodias (great blue heron)
48. Cathartes aura (turkey vulture)
49. Dendrocygna autumnalis (black bellied whistling duck)
50. Cairina moschata (muskovy duck)
51. Aix sponsa (wood duck) - I think that's what these are called. They lay their eggs in
trees. When the ducklings hatch, the parents kick them out of the nest. They're such tiny,
light-weight little things, they just sort of float down like dandelion fluff. Once all
the babies are on the ground, the parents lead them to water.
52. Anas platyrhynchos (mallard duck)
53. Caracara plancus (crested caracara) aka Mexican eagle. One of my favorite birds.
54. Zenaida macroura (mourning dove)
55. Columbina passerine (common ground dove)
56. Geococcyx californianus (great road runner) - these guys live in the sand hills. I
can't remember ever seeing one in the low lands.
57. Bubo virginianus (great horned owl)
58. Caprimulgus carolinensis (chuck wills widow)
59. Caprimulgus vociferous (whip poor will)
60. Chaetura pelagica (chimney swift)
61. Archilochus colubris (ruby throated hummingbird)
62. Melanerpes erythrocephalus (redheaded woodpecker)
63. Cyanocitta cristata (bluejay)
64. Progne subis (purple martin)
65. Troglodytes aedon (house wren)
66. Mimus polyglottos (northern mockingbird) They live in the lowlands. I've never seen
one up the hill.
67. Cardinalis cardinalis (northern cardinal)
68. Sturnella magna (eastern meadowlark) [this bird is not common here, but I HAVE heard
it here a couple of times I included it here, because it was my favorite bird when
I was a child]
69. Quiscalus quiscula (common grackle)
70. Passer domesticus (house sparrow)
71. Aratinga holochlora (green parakeet)
72. Branta Canadensis (Canada goose)
73. Buteo magnirostris (roadside hawk)
74. Tyto alba (barn owl)
75. Chordeiles minor (common night hawk)
76. Corvus corax (common raven)
REPTILES
77. Cyrtodactylus scaber (bent toe gecko) These are delightful little creatures who are
able to adhere to vertical surfaces by van der Waals interactions between their foot pads
and the surface.
78. Urosaurus ornatus (tree lizard)
79. Phrynosoma cornutum (Texas horned lizard) I haven't seen one of these in a long time.
They used to be quite common around here.
80. Anolis carolinensis seminolus (southern green anole, aka American chameleon)
81. Elaphe emoryi (great plains rat snake)
82. Heterodon platirhinos (eastern hognose snake)
83. Pituophis catenifer (gopher snake)
84. Micrurus tener (Texas coral snake)
85. Crotalus atrox (western diamondback rattle snake)
86. Agkistrodon contortrix (copperhead snake)
87. Agkistrodon piscivorus (cottonmouth water moccasin)
88. Crotalus viridis (prairie rattlesnake)
AMPHIBIANS
89. Bufo speciosus (Texas toad)
90. Bufo valliceps (Gulf Coast toad)
91. Syrrhophus cystignathoides campi (Rio Grande chirping frog)
92. Gastrophryne olivacea (great plains narrow mouth toad)
93. Rana catesbeiana (bull frog)
94. Rana sphenocephala (southern leopard frog)
PLANTS
TREES
95. Carya illinoensis (pecan tree)
96. Quercus stellata (post oak)
97. Quercus marilandica (blackjack oak)
98. Vaccinium arboretum (farkleberry)
99. Ilex vomitoria (yaupon holly)
100. Callicarpa americana (American beauty berry)
*****
REMARKS ON THE FIVE SPECIES
OF MOST INTEREST TO BARBARA:
Aside from humans, in which Im intensely interested, I cant pick 5 most
interesting organisms, because I find them all equally interesting. However, I can pick
several of my favorite fellow creatures. Im very fond of caracaras, beause
theyre beatiful when they soar, and they perform the useful function of cleaning up
carrion. I love roadrunners, because theyre so curious and funny the way they run
and make sounds like a puppy crying. Although I have often felt rage toward javelinas
(when they tear up my corn patch, for example, or cut open one of my dogs with their
tusks), I find them quite interesting to watch. I havent seen any lately, since I
moved into the city, but when I lived in the woods theyd often come nosing around;
they showed no fear of me at all and would think nothing of coming right into my cabin (I
had to put up a fence to keep them out). Opussums are entertaining, curious little
animals, who are easy to tame.
I got to 100 before I even reached arthropods and I have to stop, because I have to go to
work, but I have to mention some of the arthropods here, because theyre among my
favorite critters: garden spiders (Argiope aurantia) because theyre so graceful. I
call them Lady Spiders, because they remind me of a Spanish lady in a yellow gown with
black gloves. Although I hate being stung by scorpions (the kind I see around here are
Centruroides vittatus) , I enjoy watching them. Ive seen females hanging out with
loads of babies riding on their backs. Ive felt a special fondness for coyotes ever
since I freed one from a fence. It was a barbed wire fence with hog wire fastened along
the bottom and the coyote had caught one of her hing paws in between the hogwire and a
strand of barbed wire. When I first approached her, she was terrified and struggled,
trying to free herself. I spoke softly to her and told her I was going to help her. I
swear, she understood what I was saying (not the words, but the intent), and she remained
completely still while I freed her paw, even tho it must have been painful. After her paw
was freed, she shot off toward the trees; but she stopped about 40 feet away from me and
looked back. I got the impression she was thanking me or (I know this seems far fetched,
but
) inviting me to go with her. I like Sphinx moths for the intriguing pattern on
their wings and all butterflies and bees for the joy they give me in the garden, both from
their beauty and from pollinating the flowers of fruit trees and other plants. Domestic
dogs I like for their companionship and protection. Domestic cats for their beauty and
affection. Domestic chickens for their eggs and meat and for the hours of entertainment
Ive had from watching them as they go about their business. Soil organisms are also
favorites of mine (earth worms, bacteria, etc.) since they keep the soil fertile and
alive. While I cant say Im fond of copperhead snakes, I do feel a sort of
gratitude toward them, for never having been bitten, despite the numerous times Ive
almost stepped on one of them.
BARBARA'S THOUGHTS ON WHAT SHE'S LEARNED IDENTIFYING THESE SPECIES
I didnt think Id have any trouble at all listing 100 organisms, but I
figured theyd mostly be plants. Im a gardener, so I know hundreds of plants.
What surprised me was the number of non-plant organisms with whom I interact. Theres
a story to go with every species on the list , and I keep remembering more that I
didnt put on the list, such as leaf-cutting ants (Atta texana), who are some of the
most fascinating creatures Ive ever encountered. My close study of them was
motivated by a desire to destroy them, or at least to persuade them to leave my garden;
but even tho I was motivated by
well, to be blunt, hate
I grew to respect
them and even feel a certain fondness toward them, long as theyre not in my garden.
This organism (I think one must consider the whole colony as one organism) could defoliate
an entire pear tree overnight, and there seemed to be no end to their drive to expand
their territory. Ive seen cities of them (sad to say, on my land) with 20 mounds,
interconnected with tunnels. Under each mound was a network of tunnels extending 6 feet or
more downward. There are several different specialized versions (all, far as I know, the
same species, tho they look quite different from one another) there were Scouts,
whod roam around looking for good pickings; ones I called Managers (scholarly
articles refer to these as soldier ants, but I find the structure of these ant colonies to
be far more similar to that of a business corporation than to a military unit), whose role
seemed to be to keep the common workers in line; workers who climbed into trees and shrubs
and separated the leaves from the branches; workers who cut the fallen leaves into pieces
and carried the pieces back to headquarters; workers who lay out the bits of leaves along
the underground tunnels and innoculated them with fungus and tended the fungus as it grew
(these same ones may have also harvested the fungus and carried it to other workers and to
the queen); and a queen. I never saw a queen, but Ive seen photos of one. The queen
is huge, up to an inch long, and fat.
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