Kvadráty: 5852 5952 7069 5862 6847 6474 7162 7161 7261 7067 6968 6865 6764 7062 6965 6866 7266 7165 5942 6050 6071 7059 7168 6469 6048 5949 6470 6368 6450 6858 5948 5850 6246 6049 6051 5951 6143 7065 7152 7052 6963 6964 5752 5452 5453 6152 5751 6864 5548 5450 5653 5352 6958 7060 5651 6147 7151 6551 5350 6252 6052 6161 6452 6663 6570 5553 5555 5853 5358 6765 5953 6351 6766 6272 6863 5645 5969 6660 6650 5448 6070 6666 6273 6849 5848 6564 6149 6664 6451 5749 5863 5449 6357 6356 5950 6376 6565 6566 6274 6574 6561 6662 6264 5769 6672 6970 6359 6560 5348 5648
  Nálezy podle období
Titanoecidae 0-19001901-19501951-20002001-2021 ∑
Titanoeca quadriguttata Titanoeca quadriguttata (Hahn, 1833) Není ohrožený 4× 26× 341× 85× 456×
Titanoeca schineri Titanoeca schineri L. Koch, 1872 Téměř ohrožený 3× 11× 46× 40× 100×
Titanoeca spominima Titanoeca spominima (Taczanowski, 1866) 4× 7× 11×
Titanoeca tristis Titanoeca tristis L. Koch, 1872 Nezvěstný 1× 1×

Literatura

© Oto Zimmermann
Spiders employ a wide range of foraging strategies and some are known to use conditional foraging behavior, which is tailored to the type of prey attacked. Little is known about the prey capture behavior of cribellate titanoecid spiders. Here, we investigated the fundamental trophic niche and predatory behavior of a cribellate-web spider, Titanoeca quadriguttata (Hahn, 1833). Juvenile spiders were collected under stones in a quarry and used in the experiment. We offered each individual nine prey types (spider, springtail, termite, cricket, cockroach, beetle, fly, moth, and ant) and observed the frequencies of capture and consumption, and the foraging behavior. We found that Titanoeca quadriguttata accepted many prey types, and thus, that its fundamental trophic niche was wide. The hunting behavior differed among prey types, depending on the size and potential danger of the prey. Two capture behaviors were used to overcome prey on the web. For dangerous and some large prey, such as spiders and crickets, the spider bit its victim and immediately retreated, whereas for innocuous and small prey, such as springtails and flies, the spider bit its victim and held it in the chelicerae. Attacks were administered to different body parts of prey. For example, ants were always bitten on the head, and crickets were bitten on the legs. We conclude that Titanoeca quadriguttata is an euryphagous generalist predator which uses conditional prey capture behavior to catch a variety of prey types.

Fotografie

Titanoeca quadriguttata
Titanoeca quadriguttata - samec © Radek ŠichTitanoeca quadriguttata - samec © Radek Šich
Titanoeca quadriguttata - samice © Radek ŠichTitanoeca quadriguttata - samice © Radek Šich
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca quadriguttata © Rudolf MacekTitanoeca quadriguttata © Rudolf Macek
Titanoeca schineri
Titanoeca schineri - samec © Radek ŠichTitanoeca schineri - samec © Radek Šich
Titanoeca schineri - juvenil © Radek ŠichTitanoeca schineri - juvenil © Radek Šich
Titanoeca schineri - samice © Radek ŠichTitanoeca schineri - samice © Radek Šich
Titanoeca schineri - samice © Radek ŠichTitanoeca schineri - samice © Radek Šich
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca schineri © Rudolf MacekTitanoeca schineri © Rudolf Macek
Titanoeca spominima
Titanoeca spominima © Radek ŠichTitanoeca spominima © Radek Šich
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek
Titanoeca spominima © Rudolf MacekTitanoeca spominima © Rudolf Macek

Statistiky

Dle měsíce v roce


Dle nadmořské výšky


Dle metody sběru (568 použitých nálezů)
NeurčenoSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 53 38 8 131
Titanoeca schineri L. Koch, 1872 53 16 7 68
Titanoeca spominima (Taczanowski, 1866) 0 0 0 3
Titanoeca tristis L. Koch, 1872 0 1 0 1
Zemní pastSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 349 38 21 156
Titanoeca schineri L. Koch, 1872 17 10 4 14
Titanoeca spominima (Taczanowski, 1866) 13 0 0 3
Individuální sběrSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 88 104 67 132
Titanoeca schineri L. Koch, 1872 14 8 5 14
Titanoeca spominima (Taczanowski, 1866) 4 3 0 5
SmykSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 12 11 4 18
Titanoeca schineri L. Koch, 1872 0 0 0 1
ProsevSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 16 7 4 17
Titanoeca schineri L. Koch, 1872 1 0 0 1
FotografieSamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 0 1 1 2
PozorováníSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 1 0 0 1
SklepáváníSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 5 2 0 1
 SamciSamiceMláďataNálezy

Dle biotopu (568 použitých nálezů)
NeurčenoSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 202 61 29 238
Titanoeca schineri L. Koch, 1872 41 13 6 65
Titanoeca spominima (Taczanowski, 1866) 0 0 0 3
Titanoeca tristis L. Koch, 1872 0 1 0 1
Suché loukySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 88 34 38 60
Titanoeca schineri L. Koch, 1872 6 2 6 9
Lesostepní doubravySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 68 16 5 39
Skalní stepi na vápenciSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 32 13 7 32
Titanoeca schineri L. Koch, 1872 15 4 1 6
KamenolomySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 19 40 11 21
PísčinySamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 4 2 2 3
Titanoeca spominima (Taczanowski, 1866) 17 3 0 8
Xerotermní travinobylinná společenstvaSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 24 15 0 8
Titanoeca schineri L. Koch, 1872 1 0 1 2
Suché doubravySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 18 3 1 9
Porosty borůvekSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 15 0 1 5
Titanoeca schineri L. Koch, 1872 3 0 0 3
Kamenité suti nižších polohSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 13 3 4 8
Stinné skály nižších polohSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 9 0 4 7
Reliktní bory na skaláchSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 4 3 1 6
Lesní okrajeSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 8 0 1 5
Okraje silnicSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 3 0 1 2
Titanoeca schineri L. Koch, 1872 5 2 0 2
Vřesoviště nižších polohSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 0 1 0 1
Titanoeca schineri L. Koch, 1872 4 6 0 3
Těžebny písku a jiných nezpevněných horninSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 4 1 0 2
Titanoeca schineri L. Koch, 1872 3 5 0 2
Acidofilní borySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 7 0 0 3
Výsadby jehličnanůSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 0 2 1 2
ÚhorySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 0 5 0 1
Suťové a roklinové lesySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 4 0 0 1
JeskyněSamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 0 0 1 1
Suché křovinySamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 1 0 0 1
Haldy a výsypkySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 1 0 0 1
Polní biotopySamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 1 0 0 1
LesySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 1 1 0 1
Suché lesní lemySamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 0 1 0 1
Výsadby listnáčůSamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 1 0 0 1
MočálySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 2 0 0 1
Ovocné sady s luční vegetacíSamciSamiceMláďataNálezy
Titanoeca schineri L. Koch, 1872 1 0 0 1
PastvinySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 0 1 0 1
Železniční náspySamciSamiceMláďataNálezy
Titanoeca quadriguttata (Hahn, 1833) 1 1 0 1
 SamciSamiceMláďataNálezy

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