Bagheera kiplingi

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Bagheera kiplingi
Bagheera kiplingi (cropped).jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Salticidae
Subfamily: Salticinae
Genus: Bagheera
Species:
B. kiplingi
Binomial name
Bagheera kiplingi

Bagheera kiplingi is a species of jumping spider found in Central America, including Mexico, Costa Rica, and Guatemala. It is the type species of the genus Bagheera , which includes three other species, including B. prosper . [1] B. kiplingi is notable for its peculiar diet, which is mostly herbivorous. [2] No other known species of omnivorous spider has such a markedly herbivorous diet. [3] [4]

Contents

Taxonomy

The genus name is derived from Bagheera, the black panther from Rudyard Kipling's The Jungle Book , with the species name honoring Kipling himself. [3] Other salticid genera with names of Kipling's characters are Akela , Messua , and Nagaina . All four were named by George and Elizabeth Peckham in 1896.

Only the male was described in 1896; the female was first described 100 years later by Wayne Maddison. [5]

Description

Bagheera kiplingi is a colorful, sexually dimorphic species. The male has amber legs, a dark cephalothorax that is greenish in the upper region near the front, and a slender reddish abdomen with green transversal lines. The female's amber front legs are sturdier than the other, slender legs, which are light yellow. It has a reddish-brown cephalothorax with the top region near the front black. The female's rather large abdomen is light brown with dark brown and greenish markings.

Diet

Bagheera kiplingi inhabits Mimosaceae trees, Vachellia in particular, where it consumes specialized protein- and fat-rich nubs called Beltian bodies. The nubs form at the leaf tips of the acacia as part of a symbiotic relationship with certain species of ants. The spiders actively avoid the ants that attempt to guard the Beltian bodies (their food source) against intruders. Although the Beltian bodies account for over 90% of B. kiplingi diet, the spiders also consume nectar and occasionally steal ant larvae from passing worker ants for food. Sometimes, they cannibalize conspecifics, especially during the dry season.

Despite their occasional acts of predation, the spiders' tissues have been found to exhibit isotopic signatures typical of herbivorous animals, implying that most of their food comes from plants. [3] [6] The mechanism by which they process, ingest, and metabolize the Beltian bodies is still unresearched. The vast majority of spiders liquefy their prey using digestive enzymes before sucking it in.

The degree of herbivory varies depending on environment. In Mexico, B. kiplingi inhabit more than 50% of Vachellia collinsii trees and feed almost exclusively on an herbivorous diet. In Costa Rica, the B. kiplingi population inhabit less than 5% of Acacia trees and their diet is less herbivorous. Although this species is mostly territorial and forages solitarily, populations of several hundred specimens have been found on individual acacias in Mexico, with more than twice as many females as males. B. kiplingi appears to breed throughout the year. Observations of adult females guarding hatchlings and clutches suggest that the species is quasisocial. [4]

Related Research Articles

<i>Acacia sensu lato</i> Genus of legumes

Acacia s.l., known commonly as mimosa, acacia, thorntree or wattle, is a polyphyletic genus of shrubs and trees belonging to the subfamily Mimosoideae of the family Fabaceae. It was described by the Swedish botanist Carl Linnaeus in 1773 based on the African species Acacia nilotica. Many non-Australian species tend to be thorny, whereas the majority of Australian acacias are not. All species are pod-bearing, with sap and leaves often bearing large amounts of tannins and condensed tannins that historically found use as pharmaceuticals and preservatives.

<span class="mw-page-title-main">Jumping spider</span> Family of spiders

Jumping spiders are a group of spiders that constitute the family Salticidae. As of 2019, this family contained over 600 described genera and over 6,000 described species, making it the largest family of spiders at 13% of all species. Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats or crossing long gaps. Both their book lungs and tracheal system are well-developed, and they use both systems. Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes, with the anterior median pair being particularly large.

<i>Vachellia cornigera</i> Species of legume

Vachellia cornigera, commonly known as bullhorn acacia, is a swollen-thorn tree native to Mexico and Central America. The common name of "bullhorn" refers to the enlarged, hollowed-out, swollen thorns that occur in pairs at the base of leaves, and resemble the horns of a steer. In Yucatán it is called "subín", in Panamá the locals call them "cachito". The trees are commonly found in wet lowlands

<i>Vachellia collinsii</i> Species of legume

Vachellia collinsii, previously Acacia collinsii, is a species of flowering plant native to Central America and parts of Africa.

<span class="mw-page-title-main">Nectarivore</span> Animal in which nectar is a main source of nutrition in their diet.

In zoology, a nectarivore is an animal which derives its energy and nutrient requirements from a diet consisting mainly or exclusively of the sugar-rich nectar produced by flowering plants.

<i>Portia labiata</i> Species of spider

Portia labiata is a jumping spider found in Sri Lanka, India, southern China, Burma (Myanmar), Malaysia, Singapore, Java, Sumatra and the Philippines. In this medium-sized jumping spider, the front part is orange-brown and the back part is brownish. The conspicuous main eyes provide vision more acute than a cat's during the day and 10 times more acute than a dragonfly's, and this is essential in P. labiata′s navigation, hunting and mating.

<i>Bagheera</i> (spider) Genus of spiders

Bagheera is a genus of jumping spiders within the family Salticidae, subfamily Salticinae and subtribe Dendryphantina. The genus was first described by George Peckham & Elizabeth Peckham in 1896. The name is derived from Bagheera, a character from Rudyard Kipling's Jungle Book.

<i>Messua</i> (spider) Genus of spiders

Messua is a spider genus of the family Salticidae.

<i>Zygoballus</i> Genus of spiders

Zygoballus is a genus of jumping spiders found in North and South America.

Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms which is reflected in their large diversity of behavior.

<span class="mw-page-title-main">Myrmecophily</span> Positive interspecies associations between ants and other organisms

Myrmecophily is the term applied to positive interspecies associations between ants and a variety of other organisms, such as plants, other arthropods, and fungi. Myrmecophily refers to mutualistic associations with ants, though in its more general use, the term may also refer to commensal or even parasitic interactions.

<i>Pseudomyrmex spinicola</i> Species of ant

Pseudomyrmex spinicola is a species of red myrmecophyte-inhabiting neotropical ants which are found only in Nicaragua and Costa Rica. They live in the thorns of tropical trees like Acacia collinsii or Acacia allenii, feeding on nectaries along with the protein and lipid-rich beltian bodies. These bodies are named for Thomas Belt, a naturalist who first described the interactions between acacias and ants in his 1874 book Naturalist in Nicaragua. Belt's book in fact described ants of this species, then unknown.

<i>Saitis barbipes</i> Species of spider

Saitis barbipes is a common jumping spider found in the Mediterranean region.

<i>Vachellia drepanolobium</i> Species of legume

Vachellia drepanolobium, more commonly known as Acacia drepanolobium or whistling thorn, is a swollen-thorn acacia native to East Africa. The whistling thorn grows up to 6 meters tall. It produces a pair of straight spines at each node, some of which have large bulbous bases. These swollen spines are naturally hollow and occupied by any one of several symbiotic ant species. The common name of the plant is derived from the observation that when wind blows over bulbous spines in which ants have made entry and exit holes, they produce a whistling noise.

A social spider is a spider species whose individuals form relatively long-lasting aggregations. Whereas most spiders are solitary and even aggressive toward other members of their own species, some hundreds of species in several families show a tendency to live in groups, often referred to as colonies.

<span class="mw-page-title-main">Beltian body</span>

A Beltian body is a detachable tip found on the pinnules of some species of Acacia and closely related genera. Beltian bodies, named after Thomas Belt, are rich in lipids, sugars and proteins and often red in colour. They are believed to have evolved in a symbiotic relationship with ants. The ants live inside special plant structures (domatia) or near the plant and keep away herbivores.

<span class="mw-page-title-main">Spider</span> Order of arachnids

Spiders are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. As of August 2022, 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900.

<i>Portia fimbriata</i> Species of spider

Portia fimbriata, sometimes called the fringed jumping spider, is a jumping spider found in Australia and Southeast Asia. Adult females have bodies 6.8 to 10.5 millimetres long, while those of adult males are 5.2 to 6.5 millimetres long. Both sexes have a generally dark brown carapace, reddish brown chelicerae ("fangs"), a brown underside, dark brown palps with white hairs, and dark brown abdomens with white spots on the upper side. Both sexes have fine, faint markings and soft fringes of hair, and the legs are spindly and fringed. However, specimens from New Guinea and Indonesia have orange-brown carapaces and yellowish abdomens. In all species of the genus Portia, the abdomen distends when the spider is well fed or producing eggs.

Rhondes zofiae is an endemic species of jumping spider in the genus Rhondes that lives in New Caledonia. Only the female has been described. First defined in 2016 by Barbara Patoleta, the species is unusually named after her mother. It is small and slender, with a wide light brown cephalothorax and thinner abdomen that is lighter and patterned with grey-brown patches. It can be distinguished from the related Rhondes atypicus by the position of its copulatory openings.

References

  1. 1 2 Platnick, Norman I. (2009): The world spider catalog, version 10.0. American Museum of Natural History.
  2. Mihai, Andrei (Oct 13, 2009). "First (mainly) vegetarian spider found". ZME Science.
  3. 1 2 3 Milius, Susan (11 August 2008): "Vegetarian spider". Science News Vol. 174 No. 5.
  4. 1 2 Meehan, Christopher J.; Olson, Eric J.; Curry, Robert L. (21 August 2008): Exploitation of the Pseudomyrmex–Acacia mutualism by a predominantly vegetarian jumping spider (Bagheera kiplingi). The 93rd ESA Annual Meeting.
  5. Maddison, Wayne P. (1996): Pelegrina franganillo and other jumping spiders formerly placed in the genus Metaphidippus (Araneae: Salticidae). Bull. Mus. comp. Zool. Harv.154: 215-368. Full Version
  6. Meehan, Christopher J.; Olson, Eric J.; Reudink, Matthew W.; Kyser, T. Kurt; Curry, Robert L. (2009): "Herbivory in a spider through exploitation of an ant-plant mutualism." Current Biology 19:R892-R893. Open Access logo PLoS transparent.svg