Erysimum baeticum
Encyclopedia
Erysimum baeticum is an annual to perennial herb endemic to some mountains in the SE of Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. This species has two subspecies: Erysimum baeticum bastetanum is found only in the Sierra de Baza
Sierra de Baza
Sierra de Baza is a mountain range near the city of Baza in the Granada province in Spain. It is named after the town of Baza and its highest point is the 2,269 m high Calar de Santa Bárbara....

 (Granada
Granada
Granada is a city and the capital of the province of Granada, in the autonomous community of Andalusia, Spain. Granada is located at the foot of the Sierra Nevada mountains, at the confluence of three rivers, the Beiro, the Darro and the Genil. It sits at an elevation of 738 metres above sea...

 province), inhabiting the subalpine pine forests, from 1500 to 2000 m. a.s.l.. Erysimum baeticum baeticum is a subspecies endemic to the eastern range of the Sierra Nevada (Almería
Almería
Almería is a city in Andalusia, Spain, on the Mediterranean Sea. It is the capital of the province of the same name.-Toponym:Tradition says that the name Almería stems from the Arabic المرية Al-Mariyya: "The Mirror", comparing it to "The Mirror of the Sea"...

 province), inhabiting subalpine shrublands. Both subspecies flower during late May thru early July, displaying up to one hundred showy purple flowers arranged in several short stalks.

Life cycle

Plants germinates during early spring (March to early May), and usually grow for 2–3 years as vegetative rosettes. Much mortality occurs at this stage due to summer drought. Surviving individuals flower during their second year. Erysimum baeticum bastetanum is monocarpic, most individuals dying after flowering. Erysimum baeticum baeticum is mostly polycarpic, since an important proportion of individuals reproduce more than once.

Morphology

Reproductive plants produce one to eight reproductive stalks. Each flowering stalk can display between 5 and more than one hundred bright purple, hermaphroditic, slightly protandrous flowers arranged in corimbous inflorescences. Flowering stalks are tall (circa 1 m tall) in E. baeticum bastetatum, and very short (around 20 cm tall) in Erysimum baeticum baeticum. Flowers produce minute amount of nectar in four nectaries. Flower shape is extremely variable, ranging from radially to bilaterally symmetric even in the same population.

Pollination biology

Information of pollination biology exists only for Erysimum baeticum baeticum. Flowers are visited by over 50 species of insects belonging to the order Hymenoptera
Hymenoptera
Hymenoptera is one of the largest orders of insects, comprising the sawflies, wasps, bees and ants. There are over 130,000 recognized species, with many more remaining to be described. The name refers to the heavy wings of the insects, and is derived from the Ancient Greek ὑμήν : membrane and...

, Diptera
Diptera
Diptera , or true flies, is the order of insects possessing only a single pair of wings on the mesothorax; the metathorax bears a pair of drumstick like structures called the halteres, the remnants of the hind wings. It is a large order, containing an estimated 240,000 species, although under half...

, Coleoptera, Lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...

 and Heteroptera
Heteroptera
Heteroptera is a group of about 40,000 species of insects in the Hemiptera. Sometimes called "true bugs", that name more commonly refers to Hemiptera as a whole, and "typical bugs" might be used as a more unequivocal alternative since among the Hemiptera the heteropterans are most consistently and...

. Abundant pollinators are the beetles Melighetes maurus (Nitidulidae), Dasytes
Dasytes
Dasytes is a genus of beetles. It is sometimes placed in the Melyridae family, subfamily Dasytinae, while others place it in family Dasytidae....

 subaeneus
(Dasytidae), and Malachius laticollis (Malachidae), the solitary bees Anthophora
Anthophora
The bee genus Anthophora is one of the largest in the family Apidae, with over 450 species worldwide in 14 different subgenera. They are most abundant and diverse in the Holarctic and African biogeographic regions. All species are solitary, though many nest in large aggregations...

 leucophaea
(Anthophoridae) and Colletes
Colletes
The genus Colletes is a very large group of ground-nesting bees within the bee family Colletidae, with over 450 species worldwide, primarily in the Northern Hemisphere. These bees tend to be solitary, though sometimes nest close together in so-called aggregations...

sp (Colletidae
Colletidae
Colletidae is a family of bees, and are often referred to collectively as plasterer bees or polyester bees, due to the method of smoothing the walls of their nest cells with secretions applied with their mouthparts; these secretions dry into a cellophane-like lining...

), and the ants Proformica longiseta, Lasius niger and Cataglyphis
Cataglyphis
Cataglyphis is a genus of ant in the subfamily Formicinae. Its most famous species is C. bicolor, the Sahara Desert ant, which runs on hot sand to find insects that died of heat exhaustion, and can sustain body temperatures of up to 50°C....

 velox
(Formicidae). However, ants can act both as true pollinators and as nectar robbers.

Herbivory

In southeastern Spain, reproductive individuals are consumed by many different species of herbivores, although more information is required. Some floral buds do not open because they are galled by flies (Dasineura sp., Cecidomidae). Several species of sap-suckers (primarily the bugs Eurydema oleraceae, E. fieberi, E. ornata, and Corimeris denticulatus) feed on the reproductive stalks during flowering and fruiting. In addition, stalks are bored into by a weevil species (presumably Lixus
Lixus
Lixus refers to the following things:* lixus, the Latin word for "boiled"* Lixus in Morocco* Lixus , a genus of true weevils...

 ochraceus
, Curculionidae
Curculionidae
Curculionidae is the family of the "true" weevils . It was formerly recognized in 1998 as the largest of any animal family, with over 40,000 species described worldwide at that time...

), which consumes the inner tissues, whereas another weevil species ( presumably Ceutorhynchus, Curculionidae
Curculionidae
Curculionidae is the family of the "true" weevils . It was formerly recognized in 1998 as the largest of any animal family, with over 40,000 species described worldwide at that time...

) develops inside the fruits, living on developing seeds and acting as predispersal seed predators. The stalks are browsed by Spanish ibex (Capra pyrenaica, Bovidae), which consume flowers and mostly green fruits. Dispersed seeds are consumed by woodmice (Apodemus sylvaticus, Muridae
Muridae
Muridae is the largest family of mammals. It contains over 600 species found naturally throughout Eurasia, Africa, and Australia. They have been introduced worldwide. The group includes true mice and rats, gerbils, and relatives....

), several species of birds (Fringilla coelebs, Serinus serinus, and Carduelis
Carduelis
The genus Carduelisis a large group of birds in the finch family Fringillidae. It includes the greenfinches, redpolls, goldfinches, linnets, the twite, and the non-African siskins...

 cannabina
Fringillidae, among others), several species of medium-sized granivorous beetles (Iberozabrus sp. Carabidae, among others), and ants (Lasius niger, Tetramorium
Tetramorium
Tetramorium is a genus of insect in family Formicidae.Tetramorium was first described in the same publication as Monomorium.-Distribution:...

 caespitum
, Cataglyphis
Cataglyphis
Cataglyphis is a genus of ant in the subfamily Formicinae. Its most famous species is C. bicolor, the Sahara Desert ant, which runs on hot sand to find insects that died of heat exhaustion, and can sustain body temperatures of up to 50°C....

 velox
and Leptothorax
Leptothorax
Leptothorax is a large genus of small ants with mainly Holarctic distribution. The genus is notable for its widespread social parasitism, i.e. they are dependent on the help of workers from other ant species during a part or the whole of their life cycles...

 tristis
). These animals feed on the seeds from late August to early April. Seedlings and juveniles are sometime injured by ibex, sheep, wild boars (Sus scrofa, Suidae
Suidae
Suidae is the biological family to which pigs belong. In addition to numerous fossil species, up to sixteen extant species are currently recognized, classified into between four and eight genera...

), hares (Lepus
Hare
Hares and jackrabbits are leporids belonging to the genus Lepus. Hares less than one year old are called leverets. Four species commonly known as types of hare are classified outside of Lepus: the hispid hare , and three species known as red rock hares .Hares are very fast-moving...

 granatense
, Leporidae
Leporidae
Leporids are the approximately 50 species of rabbits and hares which form the family Leporidae. The leporids, together with the pikas, constitute the mammalian order Lagomorpha. Leporids differ from pikas in having short furry tails, and elongated ears and hind legs...

), and voles (Pitimys spp., Arvicolidae), although most seedlings die due to summer drought and seed quality.

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